100+

The world's #1 Scala consultancy

Leading Scala engineering consultancy worldwide
We don’t just use Scala. We shape it.
As maintainers of the Scala 3 compiler and main developers of the toolchain, we stand at the center of the Scala ecosystem. When you work with us, you work with the team that's involved in Scala end-to-end: starting from the compiler, through tooling, library development, to community leadership and of course delivering working Scala-based systems.
We Build the Ecosystem. We Build Your Systems.
dedicated Scala engineers
for enterprise-grade systems
80%
senior & expert level developers
skilled in large-scale platforms
6+
industry-standard libraries
used in production environments
15+
years of Scala expertise
across enterprise organizations
Partnering with VirtusLab means cooperating with a proactive team
Maintains and evolves the Scala 3 compiler and its toolchain
Maintains and develops Metals (AI-ready LSP server for Scala)
Creates key libraries: scala-cli, tapir, sttp, ox, macwire, besom
Optimizes, builds, and shapes modern CI/CD pipelines and standards for Scala
Defines and implements how Scala integrates with AI-driven workflows
Has extensive experience across the full Scala stack (Akka/Pekko, cats, ZIO, direct style)
Has access to Scala developers with hands-on enterprise-scale experience

Trusted by Scala’s creator
“VirtusLab engineers provided excellent workmanship coupled with very fast delivery, ahead of our schedule.”
Martin Odersky
Head of Programming Research Group @ EPFL
Work with Scala experts and maintainers
Leverage our years of Scala technology experience as core maintainers and seasoned practitioners to your advantage. Discover how we can assist you.Build and maintain Scala projects
- We handle the complete development process
- We deliver on time with built-in maintainability
- We leverage the Scala ecosystem for development efficiency
- We introduce best practices
- We guarantee comprehensive Scala technology stack support
Improve development efficiency
- We optimise your projects and delivery processes
- We define how Scala integrates with AI-driven workflows
- We improve your day-to-day Developer experience
- We solve any of your technical challenges and blockers
- We use adequate and battle-tested technology
- You work side-by-side with Scala experts, including the core compiler team
- You receive well-tailored training
Drive innovations
- We deliver new innovative tooling solutions
- We improve the ecosystem for industry needs
- We take Developer Experience to the next level
- We use in-house technology to give you a competitive edge
- We address your custom technology needs
We migrate your codebase from Scala 2 to Scala 3, so you can harness the benefits of our support. On top of that, we give you 10 person-days for free.
Migrate with us nowVirtusLab Scala Stack
Language & Tooling
Libraries

Why leading organizations work with us
Recognized leaders of the Scala ecosystem
We combine language-level authority with hands-on delivery.
We solve complex engineering challenges at scale.
We reduce architectural risk through deep ecosystem insight.
We support the long-term health of the Scala ecosystem.
Contributors to Scala compiler & Metals
Enterprise technology transformations across finance, retail, & technology

























