Brian Costello

Active Investor

Executive

Boston, Massachusetts

Brian Costello, Executive is an active investor based in Boston, Massachusetts. This profile covers what Brian Costello backs, at which stage, and how founders can reach out in 2026.

Investor type: AngelInvestment Partner
Stages: Early Stage VentureSeed
Invests in: Artificial IntelligenceSaaS & EnterpriseDeveloper Tools & DataMarketing & AdTech
Location: Boston, Massachusetts
Typical check: $375K
Past investments: 4

Notable investments

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How to reach Brian Costello

Angels and operators like Brian Costello reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.

Frequently Asked Questions

What does Brian Costello invest in?

Brian Costello invests in Artificial Intelligence, SaaS & Enterprise, Developer Tools & Data and Marketing & AdTech, typically at Early Stage Venture and Seed. Match your sector and stage, then reach out with a personalized pitch.