Semaphore
✓ Verified by EU AltsFast CI/CD platform with native Docker support — a Croatian alternative to Travis CI.
Overview
Semaphore builds ci/cd and developer tools software since 2012 and is listed with a Novi Sad, Serbia base. Its recorded ownership is based in Serbia, so EU jurisdiction is not assumed. EU Alts has not independently confirmed its exposure to the US CLOUD Act — the ownership and hosting facts recorded for it do not establish that it is outside the Act's reach — see the Details section below for what's known so far.
Why European teams pick Semaphore
Teams in Europe consider Semaphore when they want a ci/cd provider that bills in EUR, operating since 2012. EU Alts has not independently verified Semaphore's exposure to the US CLOUD Act — check the Details section for the recorded facts.
See more EU ci/cd tools or browse other startups from Serbia.
About
Semaphore is a CI/CD platform founded in Croatia, known for its speed — Semaphore's machines start in under 5 seconds and its caching architecture consistently delivers some of the fastest build times in the market. It supports all major languages and frameworks and offers Docker layer caching, parallel test splitting, monorepo support, and deployment pipelines to any target. Semaphore CI 2.0 introduced a YAML-based pipeline syntax and self-hosted agent support, allowing EU teams to run builds on their own infrastructure. All data is processed in the EU and a GDPR DPA is available. Semaphore is the favourite CI platform among Rails, Python, and Go teams that prioritise raw build speed.
Details
- Founded
- 2012
- Headquarters
- Novi Sad, Serbia
- Ownership
- Independently owned (Serbia)
- Verified
- 2026-09-03
- Last checked
- 2026-10-14
- Company size
- 11–50 employees
Categories
Other EU startups like Semaphore
- Woodpecker CI Germany — Lightweight open-source CI/CD system — a self-hostable European alternative to Drone CI.
- Buddy ✓ Verified by EU AltsPoland — Git-based CI/CD automation with a visual pipeline builder — a Polish alternative to Jenkins.
- Bitrise ✓ Verified by EU AltsHungary — Mobile-first CI/CD platform — a European alternative to CircleCI and Bitbucket Pipelines.
- GitLab ✓ Verified by EU AltsNetherlands — Complete DevSecOps platform with Git hosting, CI/CD and security — a European alternative to GitHub.
- Codemagic ✓ Verified by EU AltsEstonia — CI/CD built for Flutter and mobile apps — an Estonian alternative to CircleCI.
- Hygraph ✓ Verified by EU AltsGermany — GraphQL-native headless CMS — a German alternative to Contentful.
Frequently asked questions
What does Semaphore do?
Semaphore is fast ci/cd platform with native docker support — a croatian alternative to travis ci. It is listed under ci/cd and developer tools on EU Alts because its core functionality serves teams looking for a European ci/cd tool with EU data residency, typically as a switch away from well-known US incumbents.
Is Semaphore GDPR compliant?
Semaphore is listed in Novi Sad, Serbia, but its recorded ownership is based in Serbia, so EU jurisdiction is not assumed. EU Alts has not independently verified Semaphore's exposure to the US CLOUD Act; check the recorded ownership and hosting facts below before relying on it for Schrems II purposes.
How do teams switch from well-known US incumbents to Semaphore?
Teams considering a move from well-known US incumbents to Semaphore are usually drawn by its ci/cd workflow fit. EU Alts has not independently verified Semaphore's exposure to the US CLOUD Act, so treat any CLOUD Act or Schrems II conclusions as provisional. Plan a migration in stages regardless: export your data from the US incumbent, pilot Semaphore with a small team, then move the rest once integration coverage is confirmed.
Where is Semaphore based?
Semaphore is headquartered in Novi Sad, Serbia. The company was founded in 2012. Its main website is https://semaphore.io.