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We create custom web and mobile solutions.

Mainsoft is a professional software development service provider offering a variety of IT services and working with customers globally.

We help clients to establish and operate dedicated development teams as well.

We serve FinTech, HealtCare, EdTech, E-commerce and Retail companies and startups.

Up to date, we have developed more than 100 web projects and tons of mobile apps.

  • Min project size
    $50,000+
  • Hourly rate
    $50 - $99 / hr
  • Employees
    50 - 249
  • Locations
    Warszawa, Poland
  • Year founded
    Founded 2010

1 Locations

  • Warszawa , Poland

Select Focus Area
Application Platforms
Amazon Application Development Framework
70%
Linux server
20%
Azure Platform
10%
AI Technologies & Models
Anthropic
50%
Open AI GPT-3
50%
Frameworks and CMS
Spring MVC
50%
Programming & Scripting
Java
30%
C#
10%
Python
10%
Typescript
10%
Industries
Education
25%
Financial services
25%
Medical
20%
Other industries
10%
Retail
10%
eCommerce
10%
Clients
Small Business (<$10M)
80%
Midmarket ($10M - $1B)
20%

Pricing Snapshot

Min. project size $50,000+
Avg. hourly rate $50 - $99 /hr
Rating for cost 4.7 /5

What Clients Have Said

Mainsoft offers competitive pricing and good value for cost, appealing to various client sizes. Projects typically involve 2-5 employees, with budgets fitting clients' needs. Clients emphasize timely delivery and quality, indicating a strong return on investment.

This summary is based on verified Clutch reviews.

Most Common Project Size

$50,000 - $199,999 based on 9 reviews
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

Select a service to see pricing information

Highly Rated Similar Providers

Mainsoft Review Insights

Overall Review Rating

5.0
  • Quality 5.0
  • Schedule 5.0
  • Cost 4.7
  • Willing to Refer 5.0

Top Mentions

Review Highlights

  • Minor Communication and Documentation Improvements

    While generally effective, some clients noted minor areas for improvement in communication skills and documentation practices. These areas did not significantly impact project outcomes but are noted for potential enhancement.

  • Ability to Scale and Onboard Quickly

    Mainsoft is recognized for their ability to swiftly scale teams and onboard skilled professionals, which is crucial for maintaining project momentum and meeting evolving business needs.

  • Strong Project Management and Adaptability

    Mainsoft consistently demonstrates strong project management skills, delivering projects on time and adapting to changing requirements efficiently. Clients appreciate their commitment to timelines and their flexibility in project execution.

  • Consistent Team Engagement Over Long-Term Projects

    Mainsoft's ability to maintain a stable and dedicated team over extended project durations is highly impressive, ensuring continuity and deep understanding of client projects, which enhances efficiency and effectiveness.

  • Impressive Technical Expertise and Quality

    Clients commend Mainsoft for their high-quality code and technical expertise across various technologies, including Java, Angular, and React.js. They deliver solutions that are reliable and durable, meeting or exceeding client expectations.

  • High Client Satisfaction and Positive Feedback

    Mainsoft consistently receives high client satisfaction ratings, with clients praising their professionalism, dedication, and the quality of the delivered products. This positive feedback reflects their commitment to client success.

Mainsoft Reviews

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Software Development & Testing for FinTech Company

  • Application Testing Custom Software Development
  • NodeJS
    +4
  • Confidential
  • June 2023 - Ongoing
4.5
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0

"They have consistently been able to onboard new, highly skilled professionals within a very tight timeframe."

Jun 24, 2024
CIO & CISO, Pytheas Capital Advisors
Eric Taïeb Walch
Verified
  • Financial services
  • Paris, France
  • 11-50 Employees
  • Online Review
  • Verified

Mainsoft provides module development and enhancement of a TRESO2 platform for a fintech company. The team tests the solution and focuses on functionalities to improve operational efficiency and compliance.

Staff Augmentation for Software Development Company

  • Custom Software Development IT Staff Augmentation
  • Confidential
  • Jan. 2021 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0

"Their communication and understanding skills are superb."

Aug 7, 2022
Partner, Software Development Company
Anonymous
Verified
  • Other industries
  • Munich, Germany
  • 51-200 Employees
  • Online Review
  • Verified

Mainsoft has deployed an Angular developer to support a software development firm in building custom Angular applications that would enable users to manage their events and courses online.

Plugin Architecture & Web Dev Support for Software Provider

  • Custom Software Development Web Development
  • Confidential
  • May 2021 - Apr. 2022
5.0
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0

"Overall, they delivered within the expected timeframe and contributed effectively."

Apr 28, 2022
Admin & Finance Manager, jemmic
Anonymous
Verified
  • Other industries
  • Luxembourg
  • 11-50 Employees
  • Online Review
  • Verified

Mainsoft was hired by a software provider for their product assessment and streamlining of the API and plugin architecture. The team also supported the client's internal development team and solution architect.

Custom Software Dev for Climate Data Platform

  • Custom Software Development
  • $50,000 to $199,999
  • Oct. 2021 - Mar. 2022
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They are a professional team of developers who contributed in every possible way."

Mar 8, 2022
Co-Founder & CTO, Climate Data Platform
Anonymous
Verified
  • Other industries
  • Switzerland
  • 1-10 Employees
  • Online Review
  • Verified

Mainsoft provided custom software development services for a climate data platform. They built an MVP of the client's platform using React.js, Spring, and PostgreSQL and were deployed via AWS.

App Development for Monitoring & Analytics Company

  • Mobile App Development
  • $50,000 to $199,999
  • Jan. 2016 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They have a real desire to understand what needs to be done and do it in the best way."

Mar 19, 2020
CEO, S2 tikshuv LTD
Alexey Sokolov
Verified
  • Information technology
  • Haifa, Israel
  • 1-10 Employees
  • Online Review
  • Verified

Mainsoft developed the front-end of a mobile application for a monitoring and analytics company. The team built and designed the front-end of the Android platform.

IT Consulting for Financial Services Company

  • Other IT Consulting and SI
  • Less than $10,000
  • Apr. - Jan. 2018
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They have a depth of technical talent."

Mar 16, 2020
Head of Integrations Engineering, Square Inc.
Matthew Lent
Verified
  • Financial services
  • San Francisco, California
  • 1,001-5,000 Employees
  • Online Review
  • Verified

Mainsoft produced a custom report by gathering financial data using the stakeholders' APIs. They also performed custom web and mobile application development.

Android App Dev for Vending Machine Platform

  • Mobile App Development
  • $10,000 to $49,999
  • Sep. 2017 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

“They have very good quality and they resolve issues very fast.”

Feb 11, 2020
Co-Founder, NearCHAO
Vadim Kazantsev
Verified
  • Other industries
  • Moscow, Russia
  • 1-10 Employees
  • Phone Interview
  • Verified

Mainsoft developed an Android mobile app with iBeacon technology that enables users to make vending machine purchases from their mobile devices and collect loyalty discounts. The collaboration is ongoing.

Application Management & Support for SaaS Tech Company

  • Application Management & Support Application Testing Web Development
  • Kotlin
    +2
  • $50,000 to $199,999
  • Sep. 2024 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"All was delivered on time."

Oct 22, 2025
Head of IT & Information Security, Pink University GmbH
Anonymous
  • Other industries
  • Hamburg, Germany
  • 51-200 Employees
  • Online Review

Mainsoft provides Java and Kotlin development support for a SaaS tech company. The team is responsible for maintaining and fixing the client's platform, integrating and developing APIs, and managing projects.

Web App Dev Staff Augmentation for IT Services Company

  • Custom Software Development IT Staff Augmentation Web Development
  • Other app platform
    +3
  • $200,000 to $999,999
  • Oct. 2022 - Oct. 2024
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

''We were very satisfied with how the guys from Mainsoft responded to our needs and our customer's requirements.''

Jun 12, 2024
Product Owner, IT Services Company
Anonymous
Verified
  • Other industries
  • Vienna, Austria
  • 11-50 Employees
  • Online Review
  • Verified

Mainsoft has provided developers to assist in front- and backend development of a web app for an IT services company. The app's goals have been production planning enhancements and supply chain optimization.

Custom Software Development for Digital Services Provider

  • Custom Software Development
  • $50,000 to $199,999
  • May 2023 - Mar. 2024
5.0
Quality
5.0
Schedule
5.0
Cost
4.5
Willing to Refer
5.0

"They delivered all their promises."

Apr 25, 2024
Board Member, Wisercat Estonia OÜ
Anonymous
Verified
  • Information technology
  • Estonia
  • 51-200 Employees
  • Online Review
  • Verified

Mainsoft provided custom software development services for a digital services provider. The team was tasked with building a common register and information system to help the client migrate from a paperless operation.

Showing 1-10 of 17 Reviews

Locations (1)

ul. Szpitalna 8 WarszawaPoland 00-031

50 - 75

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