Squared Circle Ventures

About

Portfolio

Q&A

What is Squared Circle Ventures' investment focus?

Squared Circle Ventures is an operator-led venture capital firm specializing in pre-product, pre-revenue seed-stage investments within the cybersecurity sector. They invest across the United States and Israel.

Who founded Squared Circle Ventures?

Squared Circle Ventures was founded by Karl Mattson, a four-time Chief Information Security Officer (CISO) and an AWS Super Angel.

What is the typical check size for Squared Circle Ventures?

Squared Circle Ventures typically deploys capital tickets between $250,000 and $500,000 in first priced financing rounds.

Does Squared Circle Ventures take board seats in their portfolio companies?

No, Squared Circle Ventures participates in first priced financing rounds without requiring a board seat.

What kind of support does Squared Circle Ventures provide to its portfolio companies?

Squared Circle Ventures provides dedicated operational support, focusing on securing initial design partners and first customers. They also offer technical benefits including $200,000 in AWS Activate credits and direct access to specialized AWS account teams.

When was Squared Circle Ventures founded?

Squared Circle Ventures was founded in 2025.

Can you name a notable portfolio company of Squared Circle Ventures?

One notable portfolio company is Opti, an AI-native Identity Security startup that raised a $20 million Seed round in November 2025.

What is Karl Mattson's role at Squared Circle Ventures?

Karl Mattson is the Founder & Managing Director of Squared Circle Ventures.