EngFlow 2025 Year End Wrap¶

2025 was a year of resilience, achieving multiple key financial milestones, record-breaking momentum, and exponential growth. EngFlow overcame significant personal and professional challenges to solidify its position as the market leader in Build Management at Scale. Today, we power the world’s most complex workloads for innovators like Arm, Asana, BMW, Canva, Databricks, Lyft, Plaid, Perplexity, Snap and Zoox.
Happy team¶
Our success is rooted in our team and the LEAP values, which guided us through every peak and valley this year:
- Loyalty: This year we marked important customer success milestones with trips around the world to Sydney, Tokyo, Mexico City and Miami. The team pulled together to create value for our customers with fast builds and reduced cloud spend. We recognized their hard work with these fun trips to explore new places, experience various cultures and celebrate our accomplishments with our customers.
- Excellence: We pushed infrastructural boundaries to reliably run 200,000-core clusters. Our team also went deep into the stack to resolve critical third-party issues affecting our customers such as a deadlock in the Rust h2 library, which required fixing Wireshark's http2 support along the way.
- Adventure: Our people operations team hired and onboarded over 20 EngFlowers this year. True to our adventure value not just in experimenting with new technologies but also with new places, we brought everyone together in Salzburg for a wide array of team building olympics, nature hikes, castle visits and music experiences.
- Perseverance: An unexpected company-wide test on perseverance happened this year when our co-founder Ulf Adams was diagnosed with leukemia. The entire company came together to support his recovery and ensured we kept operations running smoothly. We hope the worst is behind him and wish him continued strength and a full recovery! Despite challenges, we signed bigger and more complex customers, helped scale their builds, and kept our platform resilient.
Happy customers¶
We deliver customer value by proactively optimizing performance, keeping our platform resilient, and reducing operating costs.
- Compared to alternative providers, our customers consistently save millions in cloud costs because of our continued focus on custom autoscaling, pool selection and strategic cloud provider partnerships. See how we work with customers from this Databricks talk at BazelCon.
- We launched significant upgrades to our Build and Test with enhanced invocation-level insights for Bazel builds. Highlights include cache performance charts, a searchable list of longest-running actions with cache misses, visual execution time breakdown for every action.
- We had a record year in migrations from open source and commercial RBE providers to EngFlow, signaling EngFlow’s leadership in providing Build Management at Scale.
- As a token of gratitude to our customers, who continuously choose EngFlow as their developer platform provider year after year for the past 5 years, we are planting our customer forests around the world. Last year we planted our customer forest in Germany, where EngFlow planted its roots. This year we are planting in the US, the home of our corporate headquarters!

More happy customers¶
EngFlow has the highest concentration of Bazel experts in the industry, and we believe in turning our knowledge into community resources. As Bazel adoption accelerates globally, we are excited to celebrate 10 years of Bazel and 5 years of EngFlow. Big thanks to Google for creating and open sourcing Bazel, and to our engineering team, half of whom are Bazel creators and active contributors.
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We continue to be platinum sponsors of BazelCon and offer Bazel enhancements and training opportunities:
- Created bzlmod blog series and bootcamp to help companies with migration.
- Hosted Bazel Management for Developer Productivity and Writing Bazel Rules workshops.
- Improved Gazelle support by implementing lazy indexing to generate BUILD files much more quickly in large repositories.
- Partnered with Virtus Labs to create gazelle_cc, letting developers quickly migrate C++ projects to Bazel.
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With the Tipi acquisition last year, we are also meeting our customers where they are by offering Remote Execution without a Bazel migration. This year our team continued investing in the CMake and C++ ecosystem.
Looking ahead to 2026¶
The EngFlow team continues to bring together Bazel and build practitioners around the world. Join our Build. Scale. Investigate. World Tour, with the first stop of 2026 in Amsterdam on January 28, at the Build Meetup co-hosted by Uber and EngFlow. We hope to see you on this tour of gratitude to our team, our customers, and the open source community.
Cheers to a happy and successful 2026!
