Corporate users of Bazel

Ascend is a Palo Alto startup that offers solutions for large data sets analysis. Their motto is Big data is hard. We make it easy.

Beeswax (in their own words)

"Beeswax is a New York based startup that provides real time bidding as service. Bazel powers their Jenkins based continuous integration and deployment framework. Beeswax loves Bazel because it is blazingly fast, correct and well supported across many languages and platforms."


Braintree, a PayPal subsidiary, develops payment solutions for websites and applications. They use Bazel for parts of their internal build and Paul Gross even posted a nice piece about how their switch to Bazel went.


Databricks provides cloud-based integrated workspaces based on Apache Sparkā„¢.


InteraXon is a thought-controlled computing firm that creates hardware and software platforms to convert brainwaves into digital signals. develops SpatialOS, a distributed operating system that enables creating huge simulations inhabited by millions of complex entities.


Makani, now a Google subsidiary, develops energy kites and uses Bazel to build their software (including their embedded C++ software).

Peloton Technology

Peloton Technology is an automated vehicle technology company that tackles truck accidents and fuel use. They use Bazel to enable reliable builds for automotive safety systems.


Stripe provides mobile payment solutions. They are the main maintainers of the Bazel Scala rules.

Open-source projects using Bazel

If you'd like your project listed here, please let us know!


A Java code generator that allows you to create a builder by writing one function.


Copybara is a tool for transforming and moving code between repositories.

Deepmind Lab

A customisable 3D platform for agent-based AI research.

Error Prone

Catches common Java mistakes as compile-time errors. (Migration to Bazel is in progress.)


FFruit is a free & open source Android application to the popular service Falling Fruit.

Gerrit Code Review

Gerrit is a code review and project management tool for Git based projects.


Gitiles is a simple repository browser for Git repositories, built on JGit.


A language-and-platform-neutral remote procedure call system. (Bazel is a supported, although not primary, build system.)


A Java code generator that lets you write Prolog-style predicates and use them seamlessly from normal Java code.


Heron is a realtime, distributed, fault-tolerant stream processing engine from Twitter.


An elegant, formally-specified config generation language for JSON. (Bazel is a supported build system.)


An ecosystem for building tools that work with code.


Top-level domain name registry service on Google App Engine.

PetitParser for Java

Grammars for programming languages are traditionally specified statically. They are hard to compose and reuse due to ambiguities that inevitably arise. PetitParser combines ideas from scannnerless parsing, parser combinators, parsing expression grammars and packrat parsers to model grammars and parsers as objects that can be reconfigured dynamically.


An open source software library for machine intelligence.


A collection of C++/Java opensource projects with BUILD files so they can be built with Bazel with out of box support for protobuf and grpc (maybe thrift).

Turbo Santa

A platform-independent GameBoy emulator.


Project Wycheproof tests crypto libraries against known attacks.


XIOSim is a detailed user-mode microarchitectural simulator for the x86 architecture.