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.
Makani, now a Google subsidiary, develops energy kites and uses Bazel to build their software (including their embedded C++ software).
If you'd like your project listed here, please [let us know](mailto:kchodorow@google.com?subject=My project uses Bazel)!
A Java code generator that allows you to create a builder by writing one function.
Catches common Java mistakes as compile-time errors. (Migration to Bazel is in progress.)
A language-and-platform-neutral remote procedure call system. (Bazel is a supported, although not primary, build system.)
An elegant, formally-specified config generation language for JSON. (Bazel is a supported build system.)
An ecosystem for building tools that work with code.
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).
A platform-independent GameBoy emulator.