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Top developer productivity and IT systems for AI.

We are the company behind JVM dev tools with 15+ years of experience, consulting top-tier clients through countless optimizations, solving complex industry problems, and AI-ready tooling overhauls. We give you deep knowledge of what actually breaks, what scales, and what delivers results when it matters most.

We are Scala 3 maintainers actively building open-source software. This allows us to guarantee top developer productivity and IT systems for the AI era.

  • Min project size
    $10,000+
  • Hourly rate
    $50 - $99 / hr
  • Employees
    250 - 999
  • Locations
    London, England
  • Year founded
    Founded 2009

3 Locations

  • London , England
  • Berlin , Germany
  • Kraków , Poland

No have been added yet...

    Pricing Snapshot

    Min. project size $10,000+
    Avg. hourly rate $50 - $99 /hr
    Rating for cost 4.6 /5

    What Clients Have Said

    VirtusLab offers competitive pricing with investments ranging from $2,300 to $3.1 million across various projects. Clients commend their quality and value for cost, though some report challenges with resource allocation and intellectual property management.

    This summary is based on verified Clutch reviews.

    Most Common Project Size

    $200,000 - $999,999 based on 5 reviews
    < $49,999 $50,000 - $199,999 $200,000 - $999,999 > $1,000,000

    Select a service to see pricing information

    Highly Rated Similar Providers

    VirtusLab Review Insights

    Overall Review Rating

    4.4
    • Quality 4.5
    • Schedule 4.3
    • Cost 4.6
    • Willing to Refer 4.4

    Top Mentions

    Review Highlights

    • Technical Proficiency in Functional Programming

      VirtusLab’s strong technical proficiency in functional programming, particularly with Scala and C++, is a key asset. Clients in specialized fields like cybersecurity and financial services have benefited from this expertise.

    • High-Quality Development Work

      The quality of development work provided by VirtusLab is consistently praised. Clients have been impressed by the skill level of the developers and the robustness of the solutions delivered.

    • Efficient Communication and Reporting

      Clients commend VirtusLab for their efficient communication and reporting. They keep clients informed about project progress and are transparent about challenges and solutions.

    • Areas for Improvement in Service Expansion

      While VirtusLab excels in backend development, some clients suggest expanding their service offerings to include frontend technologies for a more comprehensive solution.

    • High Standards and Work Ethic

      VirtusLab is recognized for their high standards and work ethic. Clients note their dedication to delivering high-quality work and their professional approach to projects.

    • Expertise in Scala Development

      VirtusLab has demonstrated strong expertise in Scala development, with multiple clients praising their ability to handle complex projects and deliver high-quality code. Their specialization in Scala is a recurring positive theme.

    VirtusLab Reviews

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    Scala Dev for Digital Asset Management & DistributionFirm

    • Custom Software Development
    • Confidential
    • Feb. 2017 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    “They’ll deliver every time if you give them the opportunity.”

    Sep 22, 2020
    Delivery Principal, Adstream
    Stephen Rooke
    Verified
    • Advertising & marketing
    • London, England
    • 501-1,000 Employees
    • Phone Interview
    • Verified

    VirtusLab provides Scala development services for a logistics company. Their most recent undertaking was reorganizing their client’s delivery monolith.

    Cybersecurity Solutions for Computer & Network Security Co

    • Cybersecurity
    • $200,000 to $999,999
    • Aug. 2019 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    4.5
    Cost
    4.5
    Willing to Refer
    5.0

    "They’re extremely strong at functional programming and in using Scala."

    Aug 13, 2020
    CEO, Cybersecurity Company
    Anonymous
    Verified
    • Other industries
    • Lausanne, Switzerland
    • 11-50 Employees
    • Phone Interview
    • Verified

    In an ongoing collaboration, VirtusLabs helped create a custom security program to be used by clients for a cybersecurity company. They currently focus on the support and development of the backend.

    Dev Support for SaaS Data Management Platform

    • Custom Software Development
    • $200,000 to $999,999
    • July 2019 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    “We’re very happy with the quality of work that the engineers do.”

    Jul 14, 2020
    Head of Engineering, SaaS Data Management Platform
    Anonymous
    Verified
    • Information technology
    • London, England
    • 11-50 Employees
    • Phone Interview
    • Verified

    VirtusLab provides staff augmentation services for a SaaS data management platform. Their work includes Scala and TypeScript development on an AWS stack. 

    Register of Social Welfare Units

    • Custom Software Development
    • $50,000 to $199,999
    • June 2013 - June 2016
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    “VirtusLab is experienced, competent, and delivers high-quality products.”

    Jul 25, 2018
    Business Unit Manager, IT Company
    Anonymous
    Verified
    • Government
    • Warsaw, Poland
    • 501-1,000 Employees
    • Online Review
    • Verified

    VirtusLab designed, built, and implemented a portal with SSL and systems integrations that adhere to government accessibility and appearance standards. The service-oriented architecture uses SSL protocol.

    Scala Backend Dev for Investment Platform

    • Custom Software Development
    • Confidential
    • Mar. - Dec. 2017
    5.0
    Quality
    5.0
    Schedule
    4.0
    Cost
    5.0
    Willing to Refer
    5.0

    “VirtusLab works to a very high standard compared to other software development houses.”

    Jul 5, 2018
    CEO, Financial Platform
    Anonymous
    Verified
    • Other industries
    • London, England
    • 11-50 Employees
    • Phone Interview
    • Verified

    VirtusLab provided specialized Scala backend programming expertise to support an internal team’s platform build. Directed by the in-house software lead, they helped complete the core and basic feature sets.

    System Analysis & Debugging for Entrepreneur

    • Application Testing
    • Less than $10,000
    • May - Jan. 2014
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    “Fundamentally, they solved the issue. The quality was unquestionable. It was exactly what I needed."

    Jun 25, 2018
    Owner, Propensive Ltd.
    Jon Pretty
    Verified
    • Other industries
    • London, England
    • 1-10 Employees
    • Phone Interview
    • Verified

    VirtusLab solved a difficult bug by systematically diagnosing and testing for it.

    Web App Dev for Currency Trading Company

    • Custom Software Development
    • Confidential
    • Jan. 2013 - Jan. 2014
    4.5
    Quality
    5.0
    Schedule
    4.0
    Cost
    4.5
    Willing to Refer
    5.0

    “It was a good atmosphere, and it was a lot of fun to work with VirtusLab.”

    Jun 19, 2018
    CEO, Currency Trading Company
    Anonymous
    Verified
    • Financial services
    • Krakow, Poland
    • 1-10 Employees
    • Phone Interview
    • Verified

    VirtusLab developed a web application simulator for financial traders to test trading strategies. The app features an adjustable replay mode which allows traders to practice using price action analysis.

    Web App for Software Technology Company

    • Web Development
    • $200,000 to $999,999
    • Jan. - Oct. 2017
    1.0
    Quality
    1.0
    Schedule
    2.0
    Cost
    3.0
    Willing to Refer
    0.5

    "My expectation wasn’t that I would pay them money, and that they would take away my project team."

    May 30, 2018
    CEO, MeStudent
    Grzegorz Lipinski
    Verified
    • Other industries
    • Sydney, Australia
    • 1-10 Employees
    • Phone Interview
    • Verified

    Hired to provide a dedicated development team to build a web application, VirtusLab withdrew personnel, then the project itself, leaving the project unfinished.

    Showing 1-8 of 8 Reviews

    Locations (3)

    Level 18, 40 Bank Street HQ3 Canary Wharf LondonEngland E14 5NR

    76 - 100

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