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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: July 9, 2026
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5,452 Companies

Programming & Scripting: Kotlin

List of the Top Kotlin Development Services

  • SuRe Procurement Logotype

    Not yet reviewed

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

    Services provided

    10% Custom Software Development
    40% Business Consulting
    40% Logistics & Supply Chain Consulting +1
    10% Web Design

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% SQL
    13% Swift
    13% Visual Basic
    10% Objective C

    Business Consulting company SuRe Procurement specializes in Business Consulting and Logistics & Supply Chain Consulting. They are headquartered in Bella Vista, Australia.

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  • ENNEF INFOTECH Logotype

    ENNEF INFOTECH

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    4% Custom Software Development
    10% E-Commerce Development
    10% Web Design +17
    10% Web Development
    6% Graphic Design
    4% Affiliate Marketing
    4% Content Marketing
    4% Conversion Optimization
    4% Digital Strategy
    4% Ecommerce Marketing
    4% Email Marketing
    4% IT Managed Services
    4% Logo
    4% Mobile & App Marketing
    4% Mobile App Development
    4% Pay Per Click
    4% SMS Marketing
    4% Search Engine Optimization
    4% Social Media Marketing
    4% Video Marketing

    Focus Areas

    10% Kotlin
    20% PHP
    15% JavaScript +5
    15% Typescript
    10% ASP.NET
    10% HTML5
    10% XML
    10% jquery

    ENNEF INFOTECH is a web design agency. The team focuses on Web Design and Web Development, and the firm is located in Chennai, India.

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  • Out of Business -Vasterra Logotype

    5.0 20 reviews
    $5,000+
    $50 - $99 / hr
    50 - 249
    London, England

    Services provided

    40% Web Development
    20% Web Design
    10% CRM Consulting and SI +3
    10% E-Commerce Development
    10% ERP Consulting and SI
    10% Low/No Code Development

    Focus Areas

    10% Kotlin
    10% C#
    10% C++ +7
    10% Java
    10% JavaScript
    10% PHP
    10% Python
    10% Ruby
    10% SQL
    10% Swift

    Out of Business - Vasterra specialized in bespoke software development with a focus on end-to-end software engineering services. The company consistently received positive feedback, with approximately 90% of reviewers impressed by their proactive approach and project management capabilities. Notable commendations included their technical expertise and understanding of diverse business needs, though some mentioned minor areas for improvement in QA testing and project timeline estimations.

    See all 20 projects

    Reviews mention Flexible

    Clients have consistently praised Vasterra for their flexibility in adapting to project requirements. One client noted their ability to understand both IT and business aspects, stating, 'they’re flexible, which is very comforting.' Additionally, the collaborative approach, where Vasterra respects client ideas and needs without pressure for change, enhances the overall positive sentiment. This adaptability contributes significantly to client satisfaction and project success.
    • Custom Software Development for Commercial Real Estate
      5.0 May 27, 2021

      Their understanding of our business is most impressive. Not only do they have IT knowledge, but also understand the business side of the project, making suggestions to optimize it accordingly. In addition, they’re flexible, which is very comforting.

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    8 of 8 Custom Software Development reviews are 5 stars
    $200,000 – $999,999 avg. project cost

    Custom Software Development PROJECT HIGHLIGHT

    Custom Software Development for Commercial Real Estate

    5.0 — Vasterra provides custom software development for a commercial real estate company. The team’s efforts include development and integration for a platform aimed to support the client’s Read more
    Read 8 Reviews

    Industry Experience

    Vasterra has received positive feedback across various industries, particularly in Advertising & Marketing, Consumer Products, Software, Healthcare, and Real Estate. Their expertise in developing AI-driven platforms, mobile applications, and user-friendly interfaces has been praised. Clients highlighted Vasterra's responsiveness, project management skills, and technical proficiency, leading to significant efficiency gains and improved user engagement. Overall sentiment indicates strong satisfaction, particularly for businesses seeking innovative tech solutions to enhance operational processes.

    Read All Reviews

    Select Industry to see insights

    Advertising & marketing Consumer Products Software Consulting Retail Healthcare Real estate Engineering Education Financial services IT Services Arts, entertainment & music Automotive

    Average Project Cost Breakdown

    $200,000 to $999,999 (5) $10,000 to $49,000 (4) $1,000,000 to $9,999,999 (3) Less than $10,000 (2) $50,000 to $199,999 (2)

    What Clients Have Said

    Vasterra is frequently praised for providing good value for money, with clients noting their fair pricing relative to the quality of services rendered. One client highlighted Vasterra as a 'great choice' due to their technical skills and communication, while another mentioned their 'excellent' project management and responsiveness. Overall, sentiment is positive, with clients feeling that the investment made, ranging from $10,000 to over $1 million, yielded significant returns in efficiency and improved processes.
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  • David Esabwa™ Logotype

    David Esabwa™

    4.8 2 reviews
    Undisclosed
    < $25 / hr
    Freelancer

    Services provided

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

    Focus Areas

    20% Kotlin
    20% HTML5
    20% Java +2
    20% JavaScript
    20% PHP

    I specialize in website design in Kenya and the entire world that transforms your online presence. As a dedicated web developer, I understand the unique digital landscape of Kenyan businesses.

    Read more
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  • DarkGenetics Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    Freelancer
    Plymouth, England

    Services provided

    20% E-Commerce Development
    15% AI Development
    15% Web Development +7
    10% Blockchain
    10% Low/No Code Development
    10% Mobile App Development
    5% Cybersecurity
    5% Enterprise App Modernization
    5% IT Strategy Consulting
    5% Wearable App Development

    Focus Areas

    10% Kotlin
    30% PHP
    25% AJAX +3
    20% Python
    10% Swift
    5% JavaScript

    Established in 2022, DarkGenetics, a small web development company, is located in Plymouth, England. Their services include Web Development and E-Commerce Development.

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  • InnoIT Consulting Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    Barcelona, Spain

    Services provided

    20% AI Development
    20% Application Testing
    20% BI & Big Data Consulting & SI +3
    20% Web Development
    10% Cloud Consulting & SI
    10% Mobile App Development

    Focus Areas

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

    InnoIT Consulting is a big data company. Their team is located in Barcelona, Spain. The firm specializes in BI & big data consulting & SI and Web Development.

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  • IntelliSurge Technologies Pvt Ltd Logotype

    IntelliSurge Technologies Pvt Ltd

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249

    Services provided

    10% API Development
    10% BI & Big Data Consulting & SI
    10% CRM Consulting and SI +8
    10% Cloud Consulting & SI
    10% Cybersecurity
    10% E-Commerce Development
    10% UX/UI Design
    10% Web Design
    10% Web Development
    5% AI Consulting
    5% AI Development

    Focus Areas

    10% Kotlin
    25% Python
    10% Apex +7
    10% Java
    10% JavaScript
    10% PHP
    10% Redux
    5% C++
    5% SQL
    5% Swift

    IntelliSurge Technologies Pvt Ltd, a web design company, was launched in 2024. The midsize team offers Web Design and UX/UI Design.

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  • Unified Serve Solutions Logotype

    Not yet reviewed

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

    Services provided

    20% Customer Service Outsourcing
    20% IT Managed Services
    15% Back Office Outsourcing +5
    15% Call Center Services
    10% Application Management & Support
    10% Finance & Accounting Outsourcing (FAO)
    5% CRM Consulting and SI
    5% Cloud Consulting & SI

    Focus Areas

    10% Kotlin
    20% Python
    20% SQL +5
    10% AJAX
    10% Ember.js
    10% Redux
    10% Ruby
    10% Swift

    Unified Serve Solutions is a Customer Service Outsourcing company. They are based in Sheridan, Wyoming, and their services include Customer Service Outsourcing and IT managed services.

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  • HEWA TECHNOLOGIES Logotype

    5.0 1 review
    $10,000+
    < $25 / hr
    10 - 49
    Addis Ababa, Ethiopia

    Services provided

    20% Branding
    20% Content Marketing
    20% Social Media Marketing +4
    15% UX/UI Design
    10% Search Engine Optimization
    10% Web Development
    5% Pay Per Click

    Focus Areas

    13% Kotlin
    33% Ember.js
    20% AJAX +3
    20% Objective C
    7% Redux
    7% Visual Basic

    Hewa Technologies Pvt. Ltd.Co. is well-positioned to become one of the most trusted digital solution providers in the industry.With its existing reputation and plans to build a proprietary

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  • Mas Vashu Logotype

    Mas Vashu

    5.0 1 review
    $1,000+
    $50 - $99 / hr
    2 - 9

    Services provided

    10% Advertising
    10% Branding
    10% Business Consulting +7
    10% Content Marketing
    10% Email Marketing
    10% Marketing Strategy
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Design
    10% Web Development

    Focus Areas

    10% Kotlin
    15% Ember.js
    15% Redux +7
    10% Java
    10% JavaScript
    10% Other programming & scripting languages
    10% Python
    10% Typescript
    5% HTML5
    5% PHP

    Since 2011, Mas Vashu Inc. has helped businesses of all sizes grow through data-driven marketing, creative strategies, and transparent collaboration. What began as a small logo-revamp operation has

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  • InfoPhonix Digital Logotype

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    Freelancer
    Rajkot, India

    Services provided

    50% Search Engine Optimization
    10% AR/VR Development
    10% Low/No Code Development +3
    10% Pay Per Click
    10% Web Design
    10% Web Development

    Focus Areas

    17% Kotlin
    19% AJAX
    19% Objective C +3
    19% Redux
    13% Ember.js
    13% Visual Basic

    InfoPhonix Digital, a SEO company, was established in 2022. The team specializes in Search Engine Optimization and Web Design.

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  • ArogyaPandit Private Limited Logotype

    Not yet reviewed

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

    Services provided

    1% Custom Software Development
    20% AI Consulting
    20% AI Development +8
    13% Low/No Code Development
    10% AR/VR Development
    10% BI & Big Data Consulting & SI
    10% Cloud Consulting & SI
    5% Generative AI
    5% IoT Development
    5% Product Design
    1% UX/UI Design

    Focus Areas

    11% Kotlin
    47% Python
    24% SQL +3
    6% Other programming & scripting languages
    6% Scala
    6% XML

    Launched in 2020, ArogyaPandit Private Limited is a small Bhageshwari, India-based artificial intelligence firm. Their services include Artificial Intelligence and AI Consulting.

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  • Stats Agency Logotype

    Not yet reviewed

    $1,000+
    Undisclosed
    2 - 9
    Brașov, Romania

    Services provided

    25% Affiliate Marketing
    25% Other Marketing
    20% Conversion Optimization +2
    15% UX/UI Design
    15% Web Development

    Focus Areas

    10% Kotlin
    20% JavaScript
    10% C +5
    10% Java
    10% PHP
    10% Python
    10% SQL
    10% Swift

    Founded in 2019, Stats Agency, a small Other Marketing company, is based in Brașov, Romania. Their services include Other Marketing and Affiliate Marketing.

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  • Qualiteck Support Services Logotype

    Not yet reviewed

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

    Services provided

    15% Branding
    15% Corporate Training & Coaching
    15% Email Marketing +4
    15% Search Engine Optimization
    15% Social Media Marketing
    15% Web Development
    10% Content Marketing

    Focus Areas

    10% Kotlin
    13% Ember.js
    13% Java +5
    13% PHP
    13% Python
    13% Redux
    13% Ruby
    12% SQL

    Qualiteck Support Services is a small branding agency. Founded in 2021, the team offers Branding and Social Media Marketing.

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  • Zenionix Technology Pvt. Ltd. Logotype

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    2 - 9
    Ahmedabad, India

    Services provided

    15% AI Development
    15% IoT Development
    15% UX/UI Design +5
    15% Web Development
    10% Cloud Consulting & SI
    10% DevOps Managed Services
    10% ERP Consulting and SI
    10% Search Engine Optimization

    Focus Areas

    10% Kotlin
    10% AJAX
    10% Java +7
    10% JavaScript
    10% PHP
    10% Python
    10% Ruby
    10% SQL
    10% Swift
    10% jquery

    Launched in 2024, Zenionix Technology Pvt. Ltd. Is an user experience agency. Located in Ahmedabad, India, the team offers UX/UI Design and Web Development.

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  • Web Proxima Logotype

    Web Proxima

    Not yet reviewed

    Undisclosed
    < $25 / hr
    2 - 9

    Services provided

    65% Web Design
    10% E-Commerce Development
    10% Search Engine Optimization +2
    10% Web Development
    5% UX/UI Design

    Focus Areas

    15% Kotlin
    40% SQL
    20% AJAX +3
    10% JavaScript
    10% Python
    5% PHP

    Web Proxima is a New Delhi, India-based web design agency. Their services include Web Design and Search Engine Optimization.

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  • Oarc Digital Logotype

    Not yet reviewed

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

    Services provided

    15% Custom Software Development
    20% Social Media Marketing
    10% AI Consulting +9
    10% Marketing Strategy
    10% Video Production
    5% AI Agents
    5% AI Development
    5% API Development
    5% Advertising
    5% Branding
    5% Digital Strategy
    5% Generative AI

    Focus Areas

    10% Kotlin
    10% Ember.js
    10% HTML5 +11
    10% Python
    10% SQL
    10% Visual Basic
    5% Elixir
    5% Objective C
    5% Other programming & scripting languages
    5% PHP
    5% Ruby
    5% Swift
    5% Typescript
    5% backbone.js

    Located in Mdina, Malta, Oarc Digital is a social media marketing company. Their services include Social Media Marketing and Custom Software Development.

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  • HomeGrown Solutions Logotype

    HomeGrown Solutions

    Not yet reviewed

    Undisclosed
    $50 - $99 / hr
    10 - 49

    Services provided

    15% Cloud Consulting & SI
    10% BI & Big Data Consulting & SI
    10% CRM Consulting and SI +7
    10% E-Commerce Development
    10% IT Managed Services
    10% Low/No Code Development
    10% Search Engine Optimization
    10% Social Media Marketing
    10% Web Development
    5% ERP Consulting and SI

    Focus Areas

    10% Kotlin
    10% ASP.NET
    10% C# +8
    10% HTML5
    10% JavaScript
    10% Python
    10% Redux
    10% SQL
    10% Typescript
    5% PHP
    5% Rust

    HomeGrown Solutions is a big data company established in 2018. The agency specializes in BI & big data consulting & SI and cloud consulting & SI, and is small.

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  • 17dots. Logotype

    17dots.

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    10 - 49

    Services provided

    30% UX/UI Design
    20% Product Design
    10% Branding +4
    10% E-Commerce Development
    10% Low/No Code Development
    10% Web Design
    10% Web Development

    Focus Areas

    10% Kotlin
    90% JavaScript

    17dots. Is an UX design company. The small Berlin, Germany-based team focuses on UX/UI Design and Web Design. The company was founded in 2020.

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  • Creatobyte Logotype

    Not yet reviewed

    Undisclosed
    < $25 / hr
    10 - 49
    Rawalpindi, Pakistan

    Services provided

    20% UX/UI Design
    15% Search Engine Optimization
    15% Social Media Marketing +5
    10% Advertising
    10% Branding
    10% Low/No Code Development
    10% Web Design
    10% Web Development

    Focus Areas

    10% Kotlin
    35% PHP
    20% Visual Basic +3
    15% Other programming & scripting languages
    10% Ember.js
    10% SQL

    Creatobyte, a web design company, is headquartered in Rawalpindi, Pakistan. The team offers Web Design and UX/UI Design.

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  • Ndovubase Solutions Limited Logotype

    Ndovubase Solutions Limited

    Not yet reviewed

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

    Services provided

    10% Custom Software Development
    30% Search Engine Optimization
    20% Social Media Marketing +4
    10% Low/No Code Development
    10% SMS Marketing
    10% UX/UI Design
    10% Web Design

    Focus Areas

    10% Kotlin
    30% Python
    20% Java +3
    20% JavaScript
    10% PHP
    10% SQL

    Small SEO company Ndovubase Solutions Limited, is in Nairobi, Kenya. Their services include Search Engine Optimization and Social Media Marketing.

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  • Stars IT Developer (Pvt) Ltd. Logotype

    Stars IT Developer (Pvt) Ltd.

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    20% CRM Consulting and SI
    20% E-Commerce Development
    20% Mobile App Development +2
    20% Social Media Marketing
    20% Web Development

    Focus Areas

    25% Kotlin
    25% JavaScript
    25% PHP +1
    25% Swift

    Stars IT Developer (Pvt) Ltd. Is a social media marketing agency. The company is based in Lahore, Pakistan. Their team offers Social Media Marketing and CRM consulting and SI.

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  • XtendPlex - NOVEA Group Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Paris, France

    Services provided

    20% AI Development
    20% BI & Big Data Consulting & SI
    20% Blockchain +3
    20% Web Development
    10% IT Strategy Consulting
    10% Mobile App Development

    Focus Areas

    25% Kotlin
    25% Java
    25% JavaScript +1
    25% Python

    Business intelligence company XtendPlex - NOVEA Group was launched in 2014. The small team offers BI & big data consulting & SI and Web Development.

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  • Caffeinate Digital Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Mount Hawthorn, Australia

    Services provided

    20% Digital Strategy
    20% Email Marketing
    20% Search Engine Optimization +3
    20% Web Design
    10% AR/VR Development
    10% Web Development

    Focus Areas

    34% Kotlin
    33% Ember.js
    33% Redux

    Caffeinate Digital is a small Digital Strategy company established in 2017. Their team focuses on Digital Strategy and Email Marketing.

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  • Raheep Media Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    الدوحة, Qatar

    Services provided

    35% Video Production
    30% Corporate Photography
    15% Search Engine Optimization +2
    10% AR/VR Development
    10% Web Development

    Focus Areas

    34% Kotlin
    33% Ember.js
    33% Redux

    Raheep Media is a video production company. The team provides Video Production and Corporate Photography and is headquartered in الدوحة, Qatar.

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  • Tech4biz Solutions Private Limited Logotype

    5.0 2 reviews
    $5,000+
    $25 - $49 / hr
    50 - 249
    Bengaluru, India

    Services provided

    10% Custom Software Development
    10% AI Development
    10% AR/VR Development +8
    10% Blockchain
    10% IoT Development
    10% Other Application Development
    10% Web Design
    9% UX/UI Design
    8% Wearable App Development
    7% Mobile App Development
    6% Web Development

    Focus Areas

    12% Kotlin
    11% ASP.NET
    11% Java +6
    11% JavaScript
    11% Objective C
    11% SQL
    11% Swift
    11% Typescript
    11% Visual Basic

    Tech4biz Solutions Private Limited is a custom software development company specializing in tailored software solutions across diverse industries. With an 80% positive feedback rate from clients, the company is praised for its meticulous approach and ability to deliver comprehensive solutions, such as a blockchain-based healthcare system and a cloud platform for athlete wellness, on time and within budget. Their adaptability and strong project management are frequently highlighted.

    See all 2 projects
    3 of 3 Custom Software Development reviews are 5 stars
    3 new reviews for Custom Software Development in past 6 months
    $50,000 – $199,999 avg. project cost

    Custom Software Development PROJECT HIGHLIGHT

    Custom Software Development for Humanitarian Aid

    5.0 — Tech4biz Solutions Private Limited developed custom software for a humanitarian aid. The team also provided support for the client's data collection software and maintenance services. Read more
    Read 3 Reviews
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  • Crafters Digital Agency Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    Freelancer
    Esch-sur-Alzette, Luxembourg

    Services provided

    20% Branding
    20% Digital Strategy
    20% Web Development +4
    10% E-Commerce Development
    10% Low/No Code Development
    10% Search Engine Optimization
    10% Social Media Marketing

    Focus Areas

    10% Kotlin
    20% HTML5
    20% PHP +5
    15% JavaScript
    10% Java
    10% SQL
    10% Swift
    5% C++

    Crafters Digital Agency is a web development company. Established in 2017, the team specializes in Web Development and Branding.

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  • Renfrow Technologies Logotype

    Renfrow Technologies

    Not yet reviewed

    Undisclosed
    Undisclosed
    Freelancer

    Services provided

    40% Custom Software Development
    40% Mobile App Development
    20% API Development

    Focus Areas

    10% Kotlin
    20% C++
    10% C +6
    10% C#
    10% HTML5
    10% Java
    10% JavaScript
    10% Python
    10% Swift

    Renfrow Technologies is a custom software development firm headquartered in Gilbert, Arizona. They specialize in Custom Software Development and Mobile App Development and were founded in 2017.

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  • Saven Technologies Limited Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    Hyderabad, India

    Services provided

    10% Custom Software Development
    10% Application Testing
    10% BI & Big Data Consulting & SI +7
    10% Cloud Consulting & SI
    10% Content Marketing
    10% DevOps Managed Services
    10% Digital Strategy
    10% Mobile App Development
    10% Search Engine Optimization
    10% Social Media Marketing

    Focus Areas

    25% Kotlin
    25% Java
    25% SQL +1
    25% Swift

    Saven Technologies Limited is a Digital Strategy company. The team provides Digital Strategy and Social Media Marketing, and the company is located in Hyderabad, India.

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  • Showtime Digital Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    North Melbourne, Australia

    Services provided

    50% Digital Strategy
    40% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% SQL
    13% Swift
    13% Visual Basic
    10% Objective C

    Showtime Digital is a Digital Strategy company. The firm is based in North Melbourne, Australia. Their services include Digital Strategy and Web Development.

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  • Go Sinergia Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Zapopan, Mexico

    Services provided

    50% IT Managed Services
    40% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% SQL
    13% Swift
    13% Visual Basic
    10% Objective C

    Established in 2018, Go Sinergia is an IT managed services company. The team specializes in IT managed services and Web Development.

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  • Lexxa Communications and Commerce Ltda Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Campinas , Brazil

    Services provided

    50% Digital Strategy
    40% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% SQL
    13% Swift
    13% Visual Basic
    10% Objective C

    Lexxa Communications and Commerce Ltda is a Digital Strategy company. Their small team is headquartered in Campinas , Brazil. Their services include Digital Strategy and Web Development.

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  • Arriminum Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Campinas, Brazil

    Services provided

    50% Digital Strategy
    40% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% SQL
    13% Swift
    13% Visual Basic
    10% Objective C

    In Campinas, Brazil, Arriminum is a Digital Strategy company. They provide Digital Strategy and Web Development.

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  • Exclusive Web Limited Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    London, England

    Services provided

    50% Web Design
    40% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% SQL
    13% Swift
    13% Visual Basic
    10% Objective C

    Launched in 2007, Exclusive Web Limited is a web design agency. Located in London, England, the team focuses on Web Design and Web Development.

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  • Chris Mackie Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    London , England

    Services provided

    50% Web Design
    40% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% SQL
    13% Swift
    13% Visual Basic
    10% Objective C

    Chris Mackie is a web design agency. They are headquartered in London , England and have small team of experts. Their services include Web Design and Web Development.

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  • n7 Studios Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Birmingham , England

    Services provided

    50% Web Design
    40% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% SQL
    13% Swift
    13% Visual Basic
    10% Objective C

    N7 Studios is a web design company launched in 2008. The team focuses on Web Design and Web Development and is located in Birmingham , England.

    Read more
    View Profile
  • Celestial Tech Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Birmingham , England

    Services provided

    50% Web Design
    40% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% SQL
    13% Swift
    13% Visual Basic
    10% Objective C

    Celestial Tech is a web design agency. They provide Web Design and Web Development and are headquartered in Birmingham , England.

    Read more
    View Profile
  • Scout Websites Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Liverpool , England

    Services provided

    50% Web Design
    40% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% SQL
    13% Swift
    13% Visual Basic
    10% Objective C

    Scout Websites, a web design company, was established in 2012. The small team offers Web Design and Web Development.

    Read more
    View Profile
  • Tantrumedia Limited Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Wallasey , England

    Services provided

    50% Web Design
    40% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% SQL
    13% Swift
    13% Visual Basic
    10% Objective C

    Tantrumedia Limited is a web design agency. Founded in 2003, the company is based in Wallasey , England. Their team provides Web Design and Web Development.

    Read more
    View Profile
  • Designers' Friend Ltd. Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Edinburgh , Scotland

    Services provided

    50% Web Design
    40% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% SQL
    13% Swift
    13% Visual Basic
    10% Objective C

    Designers' Friend Ltd. Is a small web design agency. They offer Web Design and Web Development and were founded in 2012.

    Read more
    View Profile
  • Just Structure Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Bristol , England

    Services provided

    50% Web Design
    40% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% SQL
    13% Swift
    13% Visual Basic
    10% Objective C

    Launched in 2017, Just Structure is a web design agency. Their team focuses on Web Design and Web Development.

    Read more
    View Profile
  • Manager Labs Logotype

    Manager Labs

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9

    Services provided

    50% IT Managed Services
    40% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% Typescript
    13% UnrealScript
    13% Visual Basic
    10% Objective C

    Located in , Manager Labs is a small IT managed services company. Their services include IT managed services and Web Development.

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  • Veecode Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Toronto, Canada

    Services provided

    15% Custom Software Development
    25% Pay Per Click
    25% Web Design +2
    25% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% Typescript
    13% UnrealScript
    13% Visual Basic
    10% Objective C

    Veecode is a pay per click company. The Toronto, Canada-based company was established in 2016. Their services include Pay Per Click and Web Design.

    Read more
    View Profile
  • VDezine Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Noida, India

    Services provided

    25% E-Commerce Development
    25% Mobile App Development
    25% Web Design +2
    15% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% Typescript
    13% UnrealScript
    13% Visual Basic
    10% Objective C

    VDezine is an e-commerce development company. Based in Noida, India, the team provides E-Commerce Development and Mobile App Development.

    Read more
    View Profile
  • Idea Lab Studios Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Belize City, Belize

    Services provided

    15% Custom Software Development
    25% Mobile App Development
    25% Social Media Marketing +2
    25% Web Design
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% Typescript
    13% UnrealScript
    13% Visual Basic
    10% Objective C

    Idea Lab Studios is a mobile application development firm in Belize City, Belize. Launched in 2002, the team provides Mobile App Development and Social Media Marketing.

    Read more
    View Profile
  • Webkites Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Chennai, India

    Services provided

    25% E-Commerce Development
    25% Mobile App Development
    25% Web Design +2
    15% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% Typescript
    13% UnrealScript
    13% Visual Basic
    10% Objective C

    Webkites, an e-commerce development firm, is based in Chennai, India. Launched in 2011, the team focuses on E-Commerce Development and Mobile App Development.

    Read more
    View Profile
  • ZenGo Web Services Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Ahmedabad, India

    Services provided

    25% Mobile App Development
    25% Search Engine Optimization
    25% Web Design +2
    15% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% Typescript
    13% UnrealScript
    13% Visual Basic
    10% Objective C

    ZenGo Web Services is a mobile application development company. They are headquartered in Ahmedabad, India, and their services include Mobile App Development and Search Engine Optimization.

    Read more
    View Profile
  • Digital Puppy Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Queensburgh, South Africa

    Services provided

    50% Web Design
    40% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% Typescript
    13% UnrealScript
    13% Visual Basic
    10% Objective C

    Digital Puppy is a web design agency. The small Queensburgh, South Africa-based team offers Web Design and Web Development. The firm was founded in 2015.

    Read more
    View Profile
  • Gigante Technologies Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Pune, India

    Services provided

    25% E-Commerce Development
    25% Mobile App Development
    25% Web Design +2
    15% Web Development
    10% AR/VR Development

    Focus Areas

    12% Kotlin
    13% AJAX
    13% Ember.js +5
    13% Redux
    13% Typescript
    13% UnrealScript
    13% Visual Basic
    10% Objective C

    Founded in 2011, Gigante Technologies is an e-commerce development firm. Their services include E-Commerce Development and Mobile App Development.

    Read more
    View Profile
  • bias Interactive GmbH Logotype

    Not yet reviewed

    $25,000+
    $100 - $149 / hr
    2 - 9
    Langenfeld (Rheinland), Germany

    Services provided

    20% IoT Development
    20% Mobile App Development
    20% UX/UI Design +4
    10% AR/VR Development
    10% Cloud Consulting & SI
    10% ERP Consulting and SI
    10% Web Development

    Focus Areas

    22% Kotlin
    13% Elixir
    13% Go +4
    13% JavaScript
    13% Python
    13% Ruby
    13% Swift

    UX company bias Interactive GmbH was founded in 2018. The firm focuses on UX/UI Design and Mobile App Development, and is small.

    Read more
    View Profile

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At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.

Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.

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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 Futured
2 Empat
3 Droids On Roids
4 Suffescom Solutions Inc
5 Geniusee
6 You are launched
7 Stfalcon
8 nomtek
9 Synergy Labs
10 Ackee
11 ArcTouch
12 Excellent Webworld
13 TechnoYuga
14 Brainvire Infotech Inc
15 Sidekick Interactive

List of the Top 15 Kotlin Development Services

  1. Futured Logotype

    Futured

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

    Ability to deliver

    39.3/40.0
    20/20 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
  2. 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
  3. Droids On Roids Logotype

    Droids On Roids

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

    Ability to deliver

    39/40.0
    19.2/20 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
  4. Suffescom Solutions Inc Logotype

    Suffescom Solutions Inc

    $25,000+
    $25 - $49 / 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

    45% Mobile App Development
    55% Other
    View Profile Visit Website
  5. Geniusee Logotype

    Geniusee

    $50,000+
    $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
  6. You are launched Logotype

    You are launched

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

    Ability to deliver

    40/40.0
    20/20 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
  7. Stfalcon Logotype

    Stfalcon

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

    Ability to deliver

    37.1/40.0
    17.2/20 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. nomtek Logotype

    nomtek

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

    Ability to deliver

    36.9/40.0
    17.2/20 Reviews
    10/10 Clients & Experience
    9.7/10 Market Presence

    Service focus

    40% Mobile App Development
    20% AR/VR Development
    40% Other
    View Profile Visit Website
  9. 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
  10. Ackee Logotype

    Ackee

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

    Ability to deliver

    38.8/40.0
    19.2/20 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
  11. ArcTouch Logotype

    ArcTouch

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

    Ability to deliver

    38/40.0
    18/20 Reviews
    10/10 Clients & Experience
    10/10 Market Presence

    Service focus

    10% Web Development
    20% Mobile App Development
    70% Other
    View Profile Visit Website
  12. Excellent Webworld Logotype

    Excellent Webworld

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

    Ability to deliver

    37/40.0
    17.2/20 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
  13. TechnoYuga Logotype

    TechnoYuga

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

    Ability to deliver

    40/40.0
    20/20 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
  14. Brainvire Infotech Inc Logotype

    Brainvire Infotech Inc

    $25,000+
    $25 - $49 / hr
    250 - 999
    Irving, TX

    Ability to deliver

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

    Service focus

    10% Web Development
    30% Mobile App Development
    60% Other
    View Profile Visit Website
  15. Sidekick Interactive Logotype

    Sidekick Interactive

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

    Ability to deliver

    37.3/40.0
    17.8/20 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
  16. 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
  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. Lampa Software Logotype

    Lampa Software

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

    Ability to deliver

    38.6/40.0
    19/20 Reviews
    10/10 Clients & Experience
    9.6/10 Market Presence

    Service focus

    30% Web Development
    70% Mobile App Development
    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. itCraft Logotype

    itCraft

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

    Ability to deliver

    37/40.0
    17.4/20 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
  21. 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
  22. essensys { mReady Logotype

    essensys { mReady

    $50,000+
    $50 - $99 / hr
    50 - 249
    București, Romania

    Ability to deliver

    36.8/40.0
    17.4/20 Reviews
    10/10 Clients & Experience
    9.4/10 Market Presence

    Service focus

    15% Web Development
    65% Mobile App Development
    20% Other
    View Profile Visit Website
  23. NERDZ LAB Logotype

    NERDZ LAB

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

    Ability to deliver

    38.1/40.0
    18.6/20 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
  24. Designli Logotype

    Designli

    $10,000+
    $50 - $99 / hr
    250 - 999
    Greenville, SC

    Ability to deliver

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

    Service focus

    20% Custom Software Development
    10% Kotlin
    60% Mobile App Development
    20% Other
    View Profile Visit Website
  25. 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
  26. 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
    40% Other
    View Profile Visit Website
  27. 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% Web Development
    60% Mobile App Development
    30% Other
    View Profile Visit Website
  28. Jelvix Logotype

    Jelvix

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

    Ability to deliver

    38.7/40.0
    19.8/20 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
  29. 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
  30. Dotsquares Logotype

    Dotsquares

    $1,000+
    $25 - $49 / hr
    1,000 - 9,999
    London, England

    Ability to deliver

    38.6/40.0
    19.2/20 Reviews
    9.6/10 Clients & Experience
    9.8/10 Market Presence

    Service focus

    10% Custom Software Development
    11% Kotlin
    15% Web Development
    15% Mobile App Development
    60% Other
    View Profile Visit Website

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Kotlin Development FAQs

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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