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Home Software Developers Kotlin

Top Kotlin Developers

Kotlin has become the preferred language for Android development and is rapidly expanding into backend services and multiplatform applications. Its concise syntax, null safety, and full interoperability with Java make it a practical choice for teams modernizing existing codebases or building new products from scratch.

Kotlin developers on Clutch are vetted through a verified review process, so you can compare firms based on real client outcomes — not just self-reported credentials. These companies build native Android applications, server-side systems using Ktor or Spring Boot, and cross-platform solutions with Kotlin Multiplatform (KMP). Related directories: Android app development companies, mobile app development companies, and the full Kotlin developers directory.

Ratings Updated: September 10, 2026
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5,519 Companies

Programming & Scripting: Kotlin

List of the Top Kotlin Development Services

  • EPixel Solution Logotype

    5.0 1 review
    $5,000+
    < $25 / hr
    2 - 9
    Skopje, North Macedonia

    Services provided

    20% Mobile App Development
    20% Web Development
    15% AI Development +8
    10% IT Staff Augmentation
    5% AI Agents
    5% Cloud Consulting & SI
    5% Cybersecurity
    5% DevOps Managed Services
    5% E-Commerce Development
    5% IT Managed Services
    5% IoT Development

    Focus Areas

    10% Kotlin
    20% Swift
    20% Typescript +5
    10% JavaScript
    10% Objective C
    10% Python
    10% Redux
    10% SQL

    REH SOLUCION DOOEL offers Custom Software Development services, specializing in mobile/desktop applications across industries such as healthcare and transportation. Client reviews highlight the company's professionalism, effective communication, and expertise in delivering high-quality, tailored software solutions. Their excellent project management and ability to address complex challenges make them a preferred partner for bespoke software development projects.

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  • Uen Media Logotype

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    2 - 9
    Frankfurt am Main, Germany

    Services provided

    10% Digital Strategy
    10% Graphic Design
    10% Logo +10
    10% Search Engine Optimization
    10% Social Media Marketing
    10% UX/UI Design
    10% Web Development
    5% Affiliate Marketing
    5% E-Commerce Development
    5% Mobile App Development
    5% Other Digital Marketing
    5% Print Design
    5% Web Design

    Focus Areas

    35% Kotlin
    36% Redux
    29% Ember.js

    Uen Media is a small Digital Strategy company headquartered in Frankfurt am Main, Germany. The team provides Digital Strategy and Social Media Marketing.

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  • Webline Africa Limited Logotype

    Webline Africa Limited

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    20% Custom Software Development
    30% IT Managed Services
    20% IT Strategy Consulting +3
    10% E-Commerce Development
    10% Mobile App Development
    10% Web Development

    Focus Areas

    10% Kotlin
    20% Java
    20% JavaScript +4
    20% PHP
    10% SQL
    10% Swift
    10% XML

    Webline Africa Limited, an IT managed services company, was established in 2013. Located in Dar es Salaam, Tanzania, the team specializes in IT managed services and IT strategy consulting.

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  • Primadevs Logotype

    Primadevs

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    2 - 9

    Services provided

    15% Graphic Design
    15% Mobile App Development
    15% Search Engine Optimization +4
    15% UX/UI Design
    15% Web Design
    15% Web Development
    10% E-Commerce Development

    Focus Areas

    20% Kotlin
    50% PHP
    15% Java +1
    15% SQL

    Established in 2017, Primadevs is a small SEO agency. Their team offers Search Engine Optimization and Web Design.

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  • BuzzingSoft Logotype

    Not yet reviewed

    $1,000+
    < $25 / hr
    2 - 9
    Surat, India

    Services provided

    10% Custom Software Development
    10% AR/VR Development
    10% Cloud Consulting & SI +7
    10% E-Commerce Development
    10% ERP Consulting and SI
    10% Mobile App Development
    10% Other Application Development
    10% Search Engine Optimization
    10% UX/UI Design
    10% Web Development

    Focus Areas

    16% Kotlin
    16% Java
    16% Python +7
    16% Swift
    11% PHP
    5% ASP.NET
    5% C#
    5% JavaScript
    5% Objective C
    5% SQL

    BuzzingSoft is a SEO services firm. Located in Surat, India, the team offers Search Engine Optimization and UX/UI Design.

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  • Berryzyl Logotype

    Berryzyl

    Not yet reviewed

    $1,000+
    < $25 / hr
    2 - 9

    Services provided

    15% Custom Software Development
    15% Web Design
    10% Digital Strategy +7
    10% Graphic Design
    10% Logo
    10% Low/No Code Development
    10% Search Engine Optimization
    10% Web Development
    5% Business Consulting
    5% Social Media Marketing

    Focus Areas

    25% Kotlin
    30% AJAX
    15% Ember.js +3
    15% SQL
    10% Python
    5% PHP

    Berryzyl is a web design agency. They specialize in Web Design and Custom Software Development and were founded in 2015.

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  • iGroup Solutions Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    مدينة, Kuwait

    Services provided

    20% Mobile App Development
    20% Web Development
    10% E-Commerce Development +5
    10% Graphic Design
    10% IT Managed Services
    10% Search Engine Optimization
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% Kotlin
    20% JavaScript
    20% PHP +5
    10% ASP.NET
    10% C#
    10% HTML5
    10% Swift
    10% XML

    Website development firm iGroup Solutions was founded in 2004. Headquartered in مدينة, Kuwait, the team provides Web Development and Mobile App Development.

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  • Geeks Force Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9
    Lahore, Pakistan

    Services provided

    10% Custom Software Development
    15% API Development
    15% Application Testing +6
    10% Application Management & Support
    10% E-Commerce Development
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design
    10% Web Development

    Focus Areas

    10% Kotlin
    25% JavaScript
    25% Typescript +3
    20% Redux
    10% HTML5
    10% Ruby

    Geeks Force is an API Development company. Established in 2020, the team specializes in API Development and Application Testing. The company is headquartered in Lahore, Pakistan.

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  • Proficient ICT Logotype

    Proficient ICT

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    25% IT Managed Services
    25% Web Design
    25% Web Development +2
    15% Social Media Marketing
    10% Digital Strategy

    Focus Areas

    25% Kotlin
    10% HTML5
    10% PHP +8
    10% Python
    10% Redux
    10% SQL
    5% ASP
    5% Java
    5% JavaScript
    5% Other programming & scripting languages
    5% Perl

    Proficient ICT is a small web design agency launched in 2015. Their services include Web Design and IT managed services.

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  • Nettigo Technology Logotype

    Nettigo Technology

    Not yet reviewed

    Undisclosed
    < $25 / hr
    2 - 9

    Services provided

    10% Custom Software Development
    30% E-Commerce Development
    20% Web Development +4
    10% API Development
    10% Low/No Code Development
    10% Mobile App Development
    10% Search Engine Optimization

    Focus Areas

    10% Kotlin
    20% Typescript
    20% Visual Basic +4
    15% JavaScript
    15% PHP
    10% Java
    10% SQL

    Nettigo Technology, an e-commerce development company, was established in 2018. They provides E-Commerce Development and Custom Software Development.

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  • DavionInfotech Logotype

    DavionInfotech

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    40% IT Staff Augmentation
    20% IT Managed Services
    20% Mobile App Development +1
    20% Web Development

    Focus Areas

    10% Kotlin
    15% Redux
    10% AJAX +8
    10% Java
    10% JavaScript
    10% PHP
    10% Python
    10% Visual Basic
    5% ASP.NET
    5% Ember.js
    5% Other programming & scripting languages

    DavionInfotech is an IT staff augmentation company located in Sheridan, Wyoming. They specialize in IT staff augmentation and IT managed services and were founded in 2018.

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  • Codixus Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9
    İstanbul, Türkiye

    Services provided

    20% Branding
    20% Mobile App Development
    20% UX/UI Design +2
    20% Web Design
    20% Web Development

    Focus Areas

    10% Kotlin
    35% Typescript
    25% JavaScript +2
    15% Redux
    15% Swift

    Founded in 2022, Codixus is a branding company. The team specializes in Branding and Web Design.

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  • CodeOn Sistemas Logotype

    CodeOn Sistemas

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    10% Custom Software Development
    15% IT Managed Services
    15% Mobile App Development +7
    15% Web Development
    10% AI Consulting
    10% API Development
    10% Generative AI
    5% DevOps Managed Services
    5% IT Strategy Consulting
    5% UX/UI Design

    Focus Areas

    10% Kotlin
    30% SQL
    15% PHP +4
    15% Python
    10% C#
    10% Java
    10% JavaScript

    CodeOn Sistemas is an app development firm. Founded in 2025, the firm is located in Olímpico, Brazil. Their services include Mobile App Development and Web Development.

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  • Techpinite Technologies Logotype

    Techpinite Technologies

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    10% Custom Software Development
    10% API Development
    10% CRM Consulting and SI +7
    10% DevOps Managed Services
    10% E-Commerce Development
    10% ERP Consulting and SI
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design
    10% Web Development

    Focus Areas

    20% Kotlin
    30% PHP
    20% SQL +2
    15% AJAX
    15% JavaScript

    Techpinite Technologies, a web design company, is headquartered in Nairobi, Kenya. They focus on Web Design and UX/UI Design and were founded in 2018.

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  • IPXBit Logotype

    IPXBit

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    10 - 49

    Services provided

    13% Custom Software Development
    33% IT Strategy Consulting
    24% Digital Strategy +3
    10% AR/VR Development
    10% Low/No Code Development
    10% Web Design

    Focus Areas

    25% Kotlin
    25% Python
    25% Ruby +1
    25% SQL

    IPXBit is a Digital Strategy company founded in 2023. Their services include Digital Strategy and IT strategy consulting.

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  • Frank Media Logotype

    Frank Media

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    10 - 49

    Services provided

    30% Graphic Design
    20% Web Design
    20% Web Development +2
    15% Branding
    15% UX/UI Design

    Focus Areas

    10% Kotlin
    20% AJAX
    20% Redux +4
    20% Scala
    15% HTML5
    10% Elixir
    5% Ember.js

    Frank Media is a small graphic design company. Established in 2022, the team offers Graphic Design and Web Design.

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  • Appriffy - Digital IT Hub Pvt. Ltd. Logotype

    Not yet reviewed

    $10,000+
    $25 - $49 / hr
    10 - 49
    Bengaluru, India

    Services provided

    5% Custom Software Development
    10% E-Commerce Development
    10% Mobile App Development +15
    10% Social Media Marketing
    10% Web Design
    10% Web Development
    5% AI Development
    5% Blockchain
    5% Content Marketing
    5% Digital Strategy
    5% Email Marketing
    5% Search Engine Optimization
    5% Wearable App Development
    4% Staffing
    3% Recruiting
    1% HR Consulting
    1% HR Outsourcing
    1% PEO/Employee Leasing

    Focus Areas

    11% Kotlin
    11% PHP
    11% Python +11
    11% SQL
    6% ASP
    6% ASP.NET
    6% Ember.js
    6% Go
    6% Java
    6% JavaScript
    6% Redux
    6% Ruby
    6% XML
    2% AJAX

    Established in 2015, Appriffy - Digital IT Hub Pvt. Ltd. Is a social media marketing company. The company focuses on Social Media Marketing and Web Design.

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  • Artworx Media Pvt Ltd Logotype

    Artworx Media Pvt Ltd

    5.0 1 review
    $1,000+
    $25 - $49 / hr
    50 - 249

    Services provided

    15% Mobile App Development
    15% Social Media Marketing
    15% Web Design +5
    15% Web Development
    10% CRM Consulting and SI
    10% ERP Consulting and SI
    10% Pay Per Click
    10% Search Engine Optimization

    Focus Areas

    10% Kotlin
    10% Ember.js
    10% Java +7
    10% JavaScript
    10% Objective C
    10% PHP
    10% Redux
    10% SQL
    10% Swift
    10% Visual Basic

    Artworx Media Pvt Ltd offers services in website design and development, search engine optimization, social media optimization, and CRM development. The company's reviews highlight excellent work and impressive technical support, suggesting that Artworx Media Pvt Ltd is a reliable partner with strong project management and timely delivery.

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  • nexusgentech Technologies Logotype

    nexusgentech Technologies

    4.5 1 review
    $1,000+
    $25 - $49 / hr
    50 - 249

    Services provided

    10% Custom Software Development
    15% Logistics & Supply Chain Consulting
    10% AI Agents +8
    10% AI Development
    10% Blockchain
    10% Generative AI
    10% Mobile App Development
    10% Web Development
    5% API Development
    5% BI & Big Data Consulting & SI
    5% Microservices Architecture Services

    Focus Areas

    10% Kotlin
    15% Ruby
    15% SQL +6
    10% Go
    10% Java
    10% JavaScript
    10% PHP
    10% Python
    10% Swift

    IT company    

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  • Open-Xchange Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    Torino, Italy

    Services provided

    90% Custom Software Development
    10% Web Design

    Focus Areas

    20% Kotlin
    20% C++
    20% Ember.js +2
    20% Java
    20% PHP

    Established in 2005, Open-Xchange is a custom software development company. The midsize team offers Custom Software Development.

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  • 24i Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    Amsterdam, Netherlands

    Services provided

    30% AR/VR Development
    30% Mobile App Development
    20% Advertising +2
    10% Application Management & Support
    10% Market Research

    Focus Areas

    20% Kotlin
    20% AJAX
    20% C++ +2
    20% Ember.js
    20% Java

    Launched in 2009, 24i is an AR/VR development company. The midsize team specializes in AR/VR development and Mobile App Development.

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  • Repsly Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    Zagreb, Croatia

    Services provided

    40% Custom Software Development
    30% IT Managed Services
    20% Application Management & Support +1
    10% Web Design

    Focus Areas

    20% Kotlin
    20% AJAX
    20% Ember.js +2
    20% Java
    20% JavaScript

    Repsly, a midsize custom software development firm, is headquartered in Zagreb, Croatia. The team specializes in Custom Software Development and IT managed services.

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  • PrimeSoft Solutions Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    Columbia, MD

    Services provided

    20% Custom Software Development
    30% Cloud Consulting & SI
    20% Application Management & Support +2
    20% Mobile App Development
    10% Web Design

    Focus Areas

    20% Kotlin
    20% AJAX
    20% JavaScript +2
    20% Redux
    20% SQL

    PrimeSoft Solutions is a software development company established in 2006. The midsize team focuses on Custom Software Development and cloud consulting & SI.

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  • PrediqTank Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    San Diego, CA

    Services provided

    20% Custom Software Development
    20% AI Development
    20% BI & Big Data Consulting & SI +2
    20% Cloud Consulting & SI
    20% Product Design

    Focus Areas

    20% Kotlin
    20% Python
    15% C++ +3
    15% Java
    15% JavaScript
    15% PHP

    PrediqTank is a Product Design company. They specialize in Product Design and BI & big data consulting & SI and are based in San Diego, California.

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  • OpenValue Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    Wien, Austria

    Services provided

    60% Custom Software Development
    20% AI Development
    20% Blockchain

    Focus Areas

    20% Kotlin
    60% Java
    20% Scala

    OpenValue is a software development firm. The Wien, Austria-based team offers Custom Software Development and Artificial Intelligence.

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  • Apptimate Software Private Limited Logotype

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    50 - 249
    Bhubaneswar, India

    Services provided

    10% Branding
    10% Content Marketing
    10% E-Commerce Development +7
    10% Graphic Design
    10% Mobile App Development
    10% Search Engine Optimization
    10% Social Media Marketing
    10% UX/UI Design
    10% Web Design
    10% Web Development

    Focus Areas

    20% Kotlin
    20% PHP
    20% SQL +4
    15% HTML5
    10% Java
    10% Other programming & scripting languages
    5% AJAX

    Branding firm Apptimate Software Private Limited was established in 2019. The agency focuses on Branding and Social Media Marketing.

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  • Digital True Technologies - DTrue Tech Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    50 - 249
    Noida, India

    Services provided

    10% Custom Software Development
    20% Search Engine Optimization
    14% Low/No Code Development +8
    10% E-Commerce Development
    10% Ecommerce Marketing
    10% Mobile App Development
    10% Web Development
    5% API Development
    5% IoT Development
    5% Mobile & App Marketing
    1% Web Design

    Focus Areas

    10% Kotlin
    10% Java
    10% JavaScript +10
    10% PHP
    10% SQL
    10% Swift
    10% jquery
    5% ASP.NET
    5% HTML5
    5% Objective C
    5% Python
    5% Visual Basic
    5% XML

    Digital True Technologies - DTrue Tech is a SEO services firm. They are in Noida, India and Richardson, Texas, and their services include Search Engine Optimization and Low/No Code Development.

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  • Dravis Studio Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    50 - 249
    Evesham, NJ

    Services provided

    15% Mobile App Development
    15% Web Development
    10% CRM Consulting and SI +6
    10% Content Marketing
    10% E-Commerce Development
    10% ERP Consulting and SI
    10% Graphic Design
    10% Search Engine Optimization
    10% Social Media Marketing

    Focus Areas

    10% Kotlin
    20% ASP.NET
    20% C# +3
    20% JavaScript
    20% PHP
    10% Python

    Dravis Studio is a web development firm. They are headquartered in Evesham, New Jersey and Dubai, United Arab Emirates. Their team focuses on Web Development and Mobile App Development.

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  • Avinika Solution Pvt. Ltd. Logotype

    Avinika Solution Pvt. Ltd.

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    50 - 249

    Services provided

    10% Custom Software Development
    30% IT Staff Augmentation
    25% Employer of Record (EOR) Services +3
    15% Recruitment Process Outsourcing
    10% Mobile App Development
    10% Web Development

    Focus Areas

    10% Kotlin
    20% Visual Basic
    15% Objective C +6
    10% AJAX
    10% Python
    10% Redux
    10% SQL
    10% Swift
    5% PHP

    Avinika Solution Pvt. Ltd., an IT staff augmentation company, is located in Indore, India. The team offers IT staff augmentation and Employer of Record (EOR) Services.

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  • Secure Technical Support LLC Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    Cheyenne, WY

    Services provided

    20% Custom Software Development
    20% IoT Development
    20% Mobile App Development +2
    20% UX/UI Design
    20% Web Development

    Focus Areas

    20% Kotlin
    20% PHP
    20% Python +2
    20% SQL
    20% Swift

    Secure Technical Support LLC is a custom software development firm. The team is located in Cheyenne, Wyoming, and their services include Custom Software Development and Mobile App Development.

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  • The Coding Studio Logotype

    Not yet reviewed

    $5,000+
    $25 - $49 / hr
    50 - 249
    Surat, India

    Services provided

    30% AI Development
    20% Blockchain
    20% Mobile App Development +3
    15% Generative AI
    10% AI Agents
    5% Web Development

    Focus Areas

    15% Kotlin
    15% Python
    10% JavaScript +7
    10% PHP
    10% Redux
    10% Ruby
    10% SQL
    10% Swift
    5% HTML5
    5% Typescript

    The Coding Studio is a Surat, India-based artificial intelligence firm. They focus on Artificial Intelligence and Blockchain and were founded in 2017.

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  • Aura Emanating Teknology Logotype

    Aura Emanating Teknology

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249

    Services provided

    20% Custom Software Development
    20% AI Consulting
    20% Cloud Consulting & SI +2
    20% Mobile App Development
    20% Web Development

    Focus Areas

    20% Kotlin
    20% PHP
    20% Python +2
    20% Swift
    20% Typescript

    Aura Emanating Teknology, a cloud consulting & SI company, is based in Delhi , India. The team specializes in cloud consulting & SI and Custom Software Development.

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  • RCM Digital Solutions Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    Alberton, South Africa

    Services provided

    30% Search Engine Optimization
    20% Pay Per Click
    15% Social Media Marketing +4
    10% Low/No Code Development
    10% Web Design
    10% Web Development
    5% Mobile App Development

    Focus Areas

    12% Kotlin
    11% C#
    11% Java +6
    11% JavaScript
    11% Objective C
    11% PHP
    11% Python
    11% SQL
    11% Swift

    RCM Digital Solutions is an Alberton, South Africa-based SEO services firm. Founded in 2013, the team focuses on Search Engine Optimization and Pay Per Click.

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  • Juggernaut Infotech Logotype

    Not yet reviewed

    $1,000+
    < $25 / hr
    2 - 9
    Ahmedabad, India

    Services provided

    20% Advertising
    20% Graphic Design
    20% Search Engine Optimization +2
    20% Social Media Marketing
    20% Web Development

    Focus Areas

    20% Kotlin
    50% PHP
    10% Python +2
    10% SQL
    10% Swift

    Juggernaut Infotech is an Advertising company. The team offers Advertising and Graphic Design, and the agency is located in Ahmedabad, India.

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  • Weavers Media Logotype

    Not yet reviewed

    $1,000+
    < $25 / hr
    Freelancer
    Ahmedabad, India

    Services provided

    10% Custom Software Development
    20% AR/VR Development
    20% Blockchain +5
    10% Application Management & Support
    10% Business Consulting
    10% Financial Consulting
    10% IT Strategy Consulting
    10% Web Design

    Focus Areas

    17% Kotlin
    33% Python
    33% Swift +1
    17% Objective C

    Weavers Media is an AR/VR development company. Their small team of employees is in Ahmedabad, India. Their team provides AR/VR development and Blockchain.

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  • SocialPie Technologies Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    Karachi, Pakistan

    Services provided

    10% Custom Software Development
    30% IT Staff Augmentation
    20% IT Managed Services +4
    10% AR/VR Development
    10% IT Strategy Consulting
    10% Low/No Code Development
    10% Web Design

    Focus Areas

    10% Kotlin
    5% AJAX
    5% ASP.NET +16
    5% C#
    5% Ember.js
    5% HTML5
    5% Java
    5% JavaScript
    5% Objective C
    5% Other programming & scripting languages
    5% PHP
    5% Python
    5% Redux
    5% Ruby
    5% SQL
    5% Swift
    5% Typescript
    5% Visual Basic
    5% jquery

    SocialPie Technologies is an IT managed services company. They provide IT managed services and IT staff augmentation and were launched in 2018.

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  • Cod Xpert Logotype

    Cod Xpert

    4.5 1 review
    Undisclosed
    < $25 / hr
    2 - 9

    Services provided

    10% Custom Software Development
    10% Mobile & App Marketing
    10% Mobile App Development +11
    10% Search Engine Optimization
    10% Web Design
    10% Web Development
    5% Blockchain
    5% E-Commerce Development
    5% Graphic Design
    5% Logo
    5% Social Media Marketing
    5% UX/UI Design
    5% Video Marketing
    5% Video Production

    Focus Areas

    10% Kotlin
    10% JavaScript
    10% PHP +12
    10% Python
    10% SQL
    5% AJAX
    5% ASP.NET
    5% Ember.js
    5% HTML5
    5% Java
    5% Perl
    5% Redux
    5% Swift
    5% Visual Basic
    5% jquery

    Cod Xpert specializes in website development, catering primarily to e-commerce businesses. Their clients commend them for delivering projects on time, maintaining effective communication, and offering good value for cost. However, there is room for improvement in their SEO capabilities.

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  • Backend Technology Logotype

    Backend Technology

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    20% Advertising
    20% E-Commerce Development
    20% Graphic Design +2
    20% Web Design
    20% Web Development

    Focus Areas

    20% Kotlin
    20% Objective C
    20% PHP +2
    20% SQL
    20% jquery

    Based in Kolkata, India, Backend Technology is an Advertising company. Their services include Advertising and Web Design.

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  • MailingInfoUSA Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Edison, NJ

    Services provided

    50% Business Consulting
    20% BI & Big Data Consulting & SI
    20% Web Development +1
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    11% Ember.js
    11% Java +6
    11% JavaScript
    11% Other programming & scripting languages
    11% PHP
    11% Python
    11% Typescript
    11% UnrealScript

    MailingInfoUSA, a Business Consulting company, was established in 2022. The team specializes in Business Consulting and BI & big data consulting & SI.

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  • Mekbenz Logotype

    Mekbenz

    5.0 1 review
    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    10% Custom Software Development
    20% Web Development
    15% Graphic Design +7
    10% Mobile App Development
    10% Other Digital Marketing
    10% Social Media Marketing
    10% Web Design
    5% AI Development
    5% Advertising
    5% Search Engine Optimization

    Focus Areas

    15% Kotlin
    15% HTML5
    15% Swift +6
    10% AJAX
    10% PHP
    10% Python
    10% Ruby
    10% SQL
    5% Visual Basic

    Mekbenz offers modern website development and branding services, focusing on creating user-friendly, visually striking sites with robust functionalities such as job posting features. The reviews highlight Mekbenz's commitment to high-quality work, timely delivery, and effective project management. Clients commend their ability to blend modern design with functionality, recommending Mekbenz for their professionalism and excellent communication, while suggesting minor improvements in post-launch support documentation.

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  • Appy Mango Logotype

    Appy Mango

    Not yet reviewed

    $25,000+
    $50 - $99 / hr
    2 - 9

    Services provided

    5% Custom Software Development
    15% Mobile App Development
    10% Enterprise App Modernization +13
    10% Web Development
    5% Application Management & Support
    5% Business Consulting
    5% Corporate Training & Coaching
    5% Digital Strategy
    5% E-Commerce Development
    5% IT Strategy Consulting
    5% Other Application Development
    5% Product Design
    5% Search Engine Optimization
    5% UX/UI Design
    5% Wearable App Development
    5% Web Design

    Focus Areas

    10% Kotlin
    50% JavaScript
    10% Objective C +5
    10% Swift
    5% Java
    5% Redux
    5% SQL
    5% Typescript

    Appy Mango is a small application development company launched in 2021. Their team specializes in Mobile App Development and Web Development.

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  • Squinx Infotech (OPC) Private Limited Logotype

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    2 - 9
    Nashirabad, India

    Services provided

    25% Web Development
    20% E-Commerce Development
    10% Digital Strategy +7
    10% Low/No Code Development
    10% Social Media Marketing
    5% Branding
    5% Market Research
    5% Marketing Strategy
    5% Other Application Development
    5% Other Marketing

    Focus Areas

    30% Kotlin
    60% PHP
    10% Other programming & scripting languages

    Squinx Infotech (OPC) Private Limited is a web development company launched in 2020. Their services include Web Development and E-Commerce Development.

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  • 360pixeldesign Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9
    Tampa, FL

    Services provided

    10% Custom Software Development
    15% AI Development
    15% Blockchain +6
    15% E-Commerce Development
    10% AR/VR Development
    10% Low/No Code Development
    10% Mobile App Development
    10% Web Development
    5% Mobile & App Marketing

    Focus Areas

    15% Kotlin
    17% Python
    11% AJAX +7
    11% Ember.js
    11% JavaScript
    11% PHP
    6% ASP.NET
    6% HTML5
    6% SQL
    6% Swift

    Launched in 2021, 360pixeldesign is a small software development firm. Their team offers Custom Software Development and Mobile App Development.

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  • SKOBEL TECHNOLOGY Logotype

    SKOBEL TECHNOLOGY

    Not yet reviewed

    $1,000+
    < $25 / hr
    2 - 9

    Services provided

    10% Custom Software Development
    20% E-Commerce Development
    20% IT Strategy Consulting +4
    20% Mobile App Development
    10% Enterprise App Modernization
    10% Low/No Code Development
    10% Web Design

    Focus Areas

    15% Kotlin
    20% Java
    20% JavaScript +3
    20% Typescript
    15% Python
    10% SQL

    SKOBEL TECHNOLOGY is a small IT strategy consulting company established in 2020. Their team offers IT strategy consulting and Custom Software Development.

    Read more
    View Profile
  • NinjaNext Technologies Logotype

    NinjaNext Technologies

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    2 - 9

    Services provided

    10% Custom Software Development
    10% API Development
    10% Application Management & Support +7
    10% E-Commerce Development
    10% Microservices Architecture Services
    10% Mobile & App Marketing
    10% Mobile App Development
    10% UX/UI Design
    10% Web Design
    10% Web Development

    Focus Areas

    15% Kotlin
    10% Java
    10% Redux +10
    10% SQL
    10% Swift
    10% XML
    5% HTML5
    5% JavaScript
    5% Objective C
    5% PHP
    5% Python
    5% Typescript
    5% jquery

    NinjaNext Technologies is a Mobile & App Marketing company. Established in 2022, the team specializes in Mobile & App Marketing and Web Design. The company is based in Lahore, Pakistan.

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  • QueuesHub Logotype

    QueuesHub

    Not yet reviewed

    $1,000+
    $100 - $149 / hr
    2 - 9

    Services provided

    15% Custom Software Development
    15% API Development
    15% Mobile App Development +5
    15% Web Development
    10% BI & Big Data Consulting & SI
    10% Cloud Consulting & SI
    10% ERP Consulting and SI
    10% IT Strategy Consulting

    Focus Areas

    10% Kotlin
    10% HTML5
    10% Java +7
    10% JavaScript
    10% PHP
    10% Python
    10% SQL
    10% Swift
    10% Typescript
    10% jquery

    QueuesHub is a custom software development company. The firm is based in Cairo, Egypt. Their team provides Custom Software Development and Web Development.

    Read more
    View Profile
  • Stacklance Technologies Logotype

    Stacklance Technologies

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    20% Custom Software Development
    20% Cloud Consulting & SI
    20% Digital Strategy +2
    20% UX/UI Design
    20% Web Development

    Focus Areas

    15% Kotlin
    20% PHP
    20% Python +4
    15% HTML5
    10% Java
    10% JavaScript
    10% Swift

    Stacklance Technologies is a Digital Strategy company. The Surat, India-based team focuses on Digital Strategy and UX/UI Design.

    Read more
    View Profile
  • Matabuild Logotype

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    2 - 9
    Casper, WY

    Services provided

    20% AI Development
    20% Market Research
    20% Mobile App Development +2
    20% Product Design
    20% Web Development

    Focus Areas

    15% Kotlin
    25% JavaScript
    20% Python +3
    20% Swift
    15% Typescript
    5% Go

    Matabuild is an artificial intelligence company. They are located in Casper, Wyoming. Their team focuses on Artificial Intelligence and Market Research.

    Read more
    View Profile
  • Silentronics Technologies Private Limited Logotype

    Silentronics Technologies Private Limited

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9

    Services provided

    15% Custom Software Development
    15% IoT Development
    15% Mobile App Development +8
    15% Wearable App Development
    10% AI Development
    5% AI Consulting
    5% AR/VR Development
    5% Engineering
    5% Generative AI
    5% Other Application Development
    5% Web Development

    Focus Areas

    15% Kotlin
    20% Python
    15% C +6
    15% Swift
    10% C++
    10% Java
    5% JavaScript
    5% Objective C
    5% SQL

    Silentronics Technologies Private Limited is a custom software development company. Headquartered in Ahmedabad, India, the team provides Custom Software Development and IoT development.

    Read more
    View Profile
  • OpenCircle Logotype

    Not yet reviewed

    $10,000+
    $25 - $49 / hr
    50 - 249
    São Paulo, Brazil

    Services provided

    15% AI Development
    15% Cloud Consulting & SI
    15% Mobile App Development +5
    15% Robotics Process Automation
    10% BI & Big Data Consulting & SI
    10% Low/No Code Development
    10% Product Design
    10% Web Development

    Focus Areas

    10% Kotlin
    10% ASP.NET
    10% C# +7
    10% Go
    10% Java
    10% JavaScript
    10% Python
    10% Redux
    10% SQL
    10% Typescript

    OpenCircle is a data analytics company. The São Paulo, Brazil-based firm was launched in 2020. Their services include BI & big data consulting & SI and cloud consulting & SI.

    Read more
    View Profile

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Ability to deliver
Focus
Clutch Leaders Matrix

Rollover to see company insights or click a company below for more details.

1 Empat
2 Futured
3 Geniusee
4 You are launched
5 Droids On Roids
6 Suffescom Solutions Inc
7 Stfalcon
8 Synergy Labs
9 nomtek
10 ArcTouch
11 itCraft
12 NERDZ LAB
13 Ackee
14 TechnoYuga
15 Konstant Infosolutions

List of the Top 15 Kotlin Development Services

  1. Empat Logotype

    Empat

    $10,000+
    $25 - $49 / hr
    250 - 999
    San Francisco, CA

    Ability to deliver

    40/40.0
    20/20 Reviews
    10/10 Clients & Experience
    10/10 Market Presence

    Service focus

    35% Custom Software Development
    25% Kotlin
    5% Web Development
    40% Mobile App Development
    20% Other
    View Profile Visit Website
  2. Futured Logotype

    Futured

    $10,000+
    $50 - $99 / hr
    50 - 249
    Brno, Czech Republic

    Ability to deliver

    38.7/40.0
    19.4/20 Reviews
    10/10 Clients & Experience
    9.3/10 Market Presence

    Service focus

    15% Web Development
    75% Mobile App Development
    10% Other
    View Profile Visit Website
  3. Geniusee Logotype

    Geniusee

    $25,000+
    $25 - $49 / hr
    250 - 999
    Warszawa, Poland

    Ability to deliver

    40/40.0
    20/20 Reviews
    10/10 Clients & Experience
    10/10 Market Presence

    Service focus

    40% Custom Software Development
    20% Kotlin
    10% Web Development
    20% Mobile App Development
    30% Other
    View Profile Visit Website
  4. You are launched Logotype

    You are launched

    $10,000+
    $25 - $49 / hr
    50 - 249
    Limassol, Cyprus

    Ability to deliver

    39.8/40.0
    19.8/20 Reviews
    10/10 Clients & Experience
    10/10 Market Presence

    Service focus

    40% Custom Software Development
    30% Kotlin
    50% Mobile App Development
    10% Other
    View Profile Visit Website
  5. Droids On Roids Logotype

    Droids On Roids

    $75,000+
    $50 - $99 / hr
    50 - 249
    Wrocław, Poland

    Ability to deliver

    38.4/40.0
    18.6/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    10% Custom Software Development
    40% Kotlin
    80% Mobile App Development
    10% Other
    View Profile Visit Website
  6. Suffescom Solutions Inc Logotype

    Suffescom Solutions Inc

    $25,000+
    $25 - $49 / hr
    250 - 999
    New York, NY

    Ability to deliver

    39.6/40.0
    19.6/20 Reviews
    10/10 Clients & Experience
    10/10 Market Presence

    Service focus

    40% Web Development
    40% Mobile App Development
    20% Other
    View Profile Visit Website
  7. Stfalcon Logotype

    Stfalcon

    $10,000+
    $25 - $49 / hr
    50 - 249
    Khmel'nyts'kyi, Ukraine

    Ability to deliver

    36.9/40.0
    17/20 Reviews
    10/10 Clients & Experience
    9.9/10 Market Presence

    Service focus

    30% Custom Software Development
    50% Kotlin
    40% Mobile App Development
    30% Other
    View Profile Visit Website
  8. Synergy Labs Logotype

    Synergy Labs

    $25,000+
    $50 - $99 / hr
    50 - 249
    Hollywood, FL

    Ability to deliver

    39.5/40.0
    20/20 Reviews
    10/10 Clients & Experience
    9.5/10 Market Presence

    Service focus

    10% Custom Software Development
    30% Kotlin
    10% Web Development
    60% Mobile App Development
    20% Other
    View Profile Visit Website
  9. nomtek Logotype

    nomtek

    $25,000+
    $50 - $99 / hr
    50 - 249
    Wrocław, Poland

    Ability to deliver

    36.7/40.0
    17/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

    20% Custom Software Development
    50% Kotlin
    45% Mobile App Development
    10% AR/VR Development
    25% Other
    View Profile Visit Website
  10. ArcTouch Logotype

    ArcTouch

    $100,000+
    $50 - $99 / hr
    250 - 999
    San Francisco, CA

    Ability to deliver

    37.8/40.0
    17.8/20 Reviews
    10/10 Clients & Experience
    10/10 Market Presence

    Service focus

    10% Web Development
    20% Mobile App Development
    70% Other
    View Profile Visit Website
  11. itCraft Logotype

    itCraft

    $25,000+
    $50 - $99 / hr
    50 - 249
    Warszawa, Poland

    Ability to deliver

    37.6/40.0
    18/20 Reviews
    10/10 Clients & Experience
    9.6/10 Market Presence

    Service focus

    50% Custom Software Development
    40% Kotlin
    50% Mobile App Development
    View Profile Visit Website
  12. NERDZ LAB Logotype

    NERDZ LAB

    $5,000+
    $25 - $49 / hr
    50 - 249
    L'viv, Ukraine

    Ability to deliver

    38.9/40.0
    19.4/20 Reviews
    10/10 Clients & Experience
    9.5/10 Market Presence

    Service focus

    35% Web Development
    35% Mobile App Development
    30% Other
    View Profile Visit Website
  13. Ackee Logotype

    Ackee

    $25,000+
    $50 - $99 / hr
    50 - 249
    Karlín, Czech Republic

    Ability to deliver

    38.2/40.0
    18.6/20 Reviews
    10/10 Clients & Experience
    9.6/10 Market Presence

    Service focus

    30% Web Development
    60% Mobile App Development
    10% Other
    View Profile Visit Website
  14. TechnoYuga Logotype

    TechnoYuga

    $10,000+
    < $25 / hr
    50 - 249
    New Delhi, India

    Ability to deliver

    39.8/40.0
    19.8/20 Reviews
    10/10 Clients & Experience
    10/10 Market Presence

    Service focus

    25% Custom Software Development
    23% Kotlin
    15% Web Development
    25% Mobile App Development
    35% Other
    View Profile Visit Website
  15. Konstant Infosolutions Logotype

    Konstant Infosolutions

    $5,000+
    $25 - $49 / hr
    250 - 999
    Jaipur, India

    Ability to deliver

    39.8/40.0
    20/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    10% Web Development
    60% Mobile App Development
    30% Other
    View Profile Visit Website
  16. Excellent Webworld Logotype

    Excellent Webworld

    $25,000+
    $25 - $49 / hr
    250 - 999
    Lakeville, MN

    Ability to deliver

    36.6/40.0
    16.8/20 Reviews
    9.9/10 Clients & Experience
    9.9/10 Market Presence

    Service focus

    15% Custom Software Development
    30% Kotlin
    10% Web Development
    10% Mobile App Development
    15% Enterprise App Modernization
    50% Other
    View Profile Visit Website
  17. CitrusBits Logotype

    CitrusBits

    $50,000+
    $100 - $149 / hr
    50 - 249
    Los Angeles, CA

    Ability to deliver

    36/40.0
    16.4/20 Reviews
    10/10 Clients & Experience
    9.6/10 Market Presence

    Service focus

    20% Custom Software Development
    55% Kotlin
    40% Mobile App Development
    30% AR/VR Development
    10% Other
    View Profile Visit Website
  18. Sidekick Interactive Logotype

    Sidekick Interactive

    $25,000+
    $100 - $149 / hr
    10 - 49
    Montréal, Canada

    Ability to deliver

    36.9/40.0
    17.4/20 Reviews
    10/10 Clients & Experience
    9.5/10 Market Presence

    Service focus

    20% Custom Software Development
    50% Kotlin
    20% Web Development
    40% Mobile App Development
    20% Other
    View Profile Visit Website
  19. Tapptitude Logotype

    Tapptitude

    $5,000+
    $25 - $49 / hr
    50 - 249
    Cluj-Napoca, Romania

    Ability to deliver

    39/40.0
    19.4/20 Reviews
    10/10 Clients & Experience
    9.6/10 Market Presence

    Service focus

    20% Web Development
    50% Mobile App Development
    30% Other
    View Profile Visit Website
  20. WOLFPACK DIGITAL Logotype

    WOLFPACK DIGITAL

    $10,000+
    $50 - $99 / hr
    50 - 249
    Cluj-Napoca, Romania

    Ability to deliver

    39.6/40.0
    20/20 Reviews
    10/10 Clients & Experience
    9.6/10 Market Presence

    Service focus

    45% Web Development
    45% Mobile App Development
    10% Other
    View Profile Visit Website
  21. Lampa Software Logotype

    Lampa Software

    $25,000+
    $25 - $49 / hr
    50 - 249
    Vinnytsia, Ukraine

    Ability to deliver

    38.2/40.0
    18.6/20 Reviews
    10/10 Clients & Experience
    9.6/10 Market Presence

    Service focus

    30% Web Development
    70% Mobile App Development
    View Profile Visit Website
  22. The NineHertz Logotype

    The NineHertz

    $25,000+
    $25 - $49 / hr
    250 - 999
    Jaipur, India

    Ability to deliver

    38/40.0
    18.2/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    20% Custom Software Development
    20% Kotlin
    20% Mobile App Development
    10% Application Management & Support
    20% Enterprise App Modernization
    30% Other
    View Profile Visit Website
  23. Infinum Logotype

    Infinum

    $50,000+
    $150 - $199 / hr
    250 - 999
    New York, NY

    Ability to deliver

    40/40.0
    20/20 Reviews
    10/10 Clients & Experience
    10/10 Market Presence

    Service focus

    20% Custom Software Development
    10% Kotlin
    20% Web Development
    20% Mobile App Development
    40% Other
    View Profile Visit Website
  24. UplineSoft Logotype

    UplineSoft

    $5,000+
    $25 - $49 / hr
    250 - 999
    New York, NY

    Ability to deliver

    38.9/40.0
    20/20 Reviews
    10/10 Clients & Experience
    8.9/10 Market Presence

    Service focus

    60% Custom Software Development
    15% Kotlin
    40% Other
    View Profile Visit Website
  25. TechAhead Logotype

    TechAhead

    $25,000+
    $25 - $49 / hr
    50 - 249
    Agoura Hills, CA

    Ability to deliver

    39.9/40.0
    20/20 Reviews
    10/10 Clients & Experience
    9.9/10 Market Presence

    Service focus

    10% Custom Software Development
    15% Kotlin
    50% Mobile App Development
    20% Enterprise App Modernization
    20% Other
    View Profile Visit Website
  26. Jelvix Logotype

    Jelvix

    $50,000+
    $50 - $99 / hr
    250 - 999
    Tallinn, Estonia

    Ability to deliver

    38.9/40.0
    20/20 Reviews
    9.1/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    70% Custom Software Development
    15% Kotlin
    10% Mobile App Development
    20% Other
    View Profile Visit Website
  27. Bolder Apps Logotype

    Bolder Apps

    $5,000+
    $50 - $99 / hr
    50 - 249
    Miami, FL

    Ability to deliver

    37.8/40.0
    18.6/20 Reviews
    10/10 Clients & Experience
    9.2/10 Market Presence

    Service focus

    10% Custom Software Development
    30% Kotlin
    10% Web Development
    60% Mobile App Development
    20% Other
    View Profile Visit Website
  28. JPLoft Logotype

    JPLoft

    $10,000+
    $50 - $99 / hr
    50 - 249
    Denver, CO

    Ability to deliver

    39.7/40.0
    20/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

    10% Custom Software Development
    15% Kotlin
    10% Web Development
    50% Mobile App Development
    30% Other
    View Profile Visit Website
  29. WEZOM Logotype

    WEZOM

    $50,000+
    $25 - $49 / hr
    250 - 999
    Schaumburg, IL

    Ability to deliver

    39.4/40.0
    19.6/20 Reviews
    10/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    30% Custom Software Development
    11% Kotlin
    10% Mobile App Development
    60% Other
    View Profile Visit Website
  30. LeanCode Logotype

    LeanCode

    $25,000+
    $50 - $99 / hr
    50 - 249
    Warszawa, Poland

    Ability to deliver

    39.6/40.0
    20/20 Reviews
    10/10 Clients & Experience
    9.6/10 Market Presence

    Service focus

    15% Custom Software Development
    15% Kotlin
    80% Mobile App Development
    5% Other
    View Profile Visit Website

Latest Kotlin Articles

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A UI specifications document defines how every screen in your product looks, behaves, and responds to user input. Here's how to write one that developers...

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Vibecoding vs. Software Development Agency: When AI-Generated Code Is Enough — and the Seven...

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Joshua Webber

Is AI-generated code enough, or is it time to bring in real developers? These seven thresholds show you the exact moment when a vibecoded build becomes a...

Development Thought Leadership, Scaling
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AI-Assisted Software Development: Productivity Gains vs. Quality Risks

Updated July 15, 2026
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AI-assisted software development has already become the everyday practice for the majority of development agencies. This article dives into its benefits and...

Development Thought Leadership

Kotlin Development FAQs

Clutch features companies that build modern Android and cross-platform applications using the Kotlin programming language quarterly based on a proprietary methodology. The top Kotlin development companies for 2026 include:

  1. Futured

  2. Empat

  3. Suffescom Solutions Inc

  4. Geniusee

  5. Droids On Roids

  6. You are launched

  7. Stfalcon

  8. nomtek

  9. Synergy Labs

  10. ArcTouch

  11. Ackee

  12. Excellent Webworld

  13. TechnoYuga

  14. Brainvire Infotech Inc

  15. Sidekick Interactive

Kotlin developers write applications using JetBrains' Kotlin programming language. On the Android side, they build native mobile applications using Jetpack Compose, Android SDK APIs, and modern architecture patterns like MVVM or MVI.

On the backend, Kotlin developers build server-side APIs and microservices using Ktor or Spring Boot. Furthermore, an emerging specialty is Kotlin Multiplatform (KMP), where developers write shared business logic that compiles to both Android and iOS.

Clutch’s verified pricing data shows that a focused Android app build typically ranges from $25,000 – $150,000, depending on factors like its complexity, features, and backend requirements.

Meanwhile, hourly rates for Kotlin development firms range from $25 – $149 per hour, with firms in Eastern Europe and Latin America often on the lower end and North American or Western European firms on the higher end.

Dedicated Kotlin shops maintain deeper expertise than generalist firms that work across many languages. They stay current with JetBrains' release cycle, know which libraries are production-stable versus experimental, and have established patterns for common challenges like coroutine exception handling or Compose state management. This depth typically translates to faster delivery, cleaner architecture, and lower long-term maintenance costs.

Start by outlining your project’s specific requirements and assessing their technical fit; confirm the firm has production Kotlin experience rather than Java teams that have adopted Kotlin syntax superficially.

Then, ask to see Kotlin-specific code samples or open-source contributions, and inquire about their familiarity with Kotlin coroutines, Flow, and Kotlin Multiplatform if relevant. Take a moment to thoroughly review their Clutch profiles and client ratings for projects similar to yours in complexity and industry.

Be cautious of firms that list Kotlin as a skill but whose case studies reference only Java or legacy Android development. Other red flags to watch out for include no mention of testing practices, an inability to discuss architectural patterns like Clean Architecture or MVI, and vague answers about how they handle Kotlin version migrations and library compatibility.

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