Technologists who love coming up with and helping others with great ideas.

Who we are

Tarnover is a Venture and IT services company headquartered in Pasadena, California.

Founded in 2011, Tarnover started by working with early-stage startups to build out and scale their infrastructures. Over the years the business has expanded into offensive security services — including penetration testing, OSINT, and red teaming — as well as working with larger companies across new verticals and ventures. All while keeping the focus on helping companies realize their potential by leveraging thought leaders and experts in their respective fields.

In 2025, Tarnover launched ThirdKey.AI, a division focused on building foundational AI systems — including agent frameworks, cryptographic identity for AI agents, and open security standards for the AI ecosystem.

Tarnover is a 100% telecommute company since we believe in working with the best people, not the nearest.

We are dedicated Open Source proponents and share code whenever we can to help grow the OSS community, as well as donating to projects we use and support.