Subgraph is an open-source security company based in Montreal, established in 2013. They offer a range of products and services focused on enhancing web application vulnerability scanning, adversary resistance, and providing Tor clients. Subgraph believes that open source is the key to ensuring the highest level of security, especially in an era where trust is increasingly difficult to achieve.

Inspired by the world of cryptography, Subgraph extends the principle of not trusting proprietary algorithms to also not trusting closed-source security software. Their team has over 50 years of combined experience in information security and software development, ensuring that secure and usable open-source computing is accessible to everyone. The company's president, David Mirza Ahmad, has extensive experience in the information security business, including being a founding member of Security Focus.

Bruce Leidl, the Chief Technical Officer, has been involved in developing network security software for the past 15 years, with a focus on vulnerability advisories. Subgraph is dedicated to providing trustworthy and effective security solutions