Stonemill Ventures

Stonemill Ventures is an investor that puts money into cyber security companies, mostly at the seed stage. It was set up by Michael Sutton, a security veteran who moved to full-time angel investing after the 2018 public listing of Zscaler, where he had been chief information security officer.

Services

• Seed investment: backs young security companies at their earliest stage.
• Mentoring: offers founders guidance from someone who has built security businesses, alongside funding.
• Hands-on involvement: prefers to work closely with the teams it backs.

Who it works with

The firm favours founding teams in the Washington, DC area but will invest anywhere if the opportunity is right. Its portfolio covers cloud visibility, asset discovery, endpoint detection, SaaS security, application security and security tools for managed service providers.

Key facts

• Focus: Cyber security
• Stage: Mostly seed
• Location focus: Washington, DC metro area, with global reach