Founded in 2021 and headquartered in Paris, FuzzingLabs is a cybersecurity startup specializing in vulnerability research, fuzzing, and blockchain security. We combine cutting-edge research with hands-on expertise to secure some of the most critical components in the blockchain ecosystem.

At FuzzingLabs, we aim to uncover and mitigate vulnerabilities before they can be exploited.

Over the past year, our tools and methodologies have identified thousands of vulnerabilities in essential blockchain components, such as RPC libraries, cryptographic systems, compilers, and smart contracts.

We collaborate with leading companies, protocols, and foundations to deliver open-source security tools, continuous audits, and comprehensive fuzzing services that help secure the future of blockchain technology.

Our portfolio includes pioneering projects like cairo-fuzzer, sierra-analyser, thoth, sui-fuzzer, and beaconfuzz—an open-source fuzzing framework for Ethereum 2.0 clients that has exposed numerous bugs in consensus clients. We also offer specialized technical courses and custom security solutions tailored to the unique needs of our clients.