John O’Brien – Startup Investor Profile

John O’Brien is the Founder of Strange Brew Strategies (PR) and Strange Brew Ventures, LLC. He serves as the Managing Partner at Strange Brew Ventures, LLC. His investment range is from $10,000 to $250,000, with a sweet spot at $25,000. John O’Brien has made investments in various companies, including Sanctuary AI, Lightmatter, FRNGE Inc., and Permanent Data Solutions Inc. His recent investments are in Pre-seed GovTech and other areas. John O’Brien is located in Seattle, Washington. He has a background in Communications/Broadcasting and Italian, History, European Literature. John O’Brien has extensive experience in media strategy and has held positions at notable agencies and media outlets.

Location: Seattle, Washington

Country: United States of America

Investment Regions: EU

Investment Stages: pre-seed, seed

Website: https://www.strangebrewstrategies.com/

AI Reasoning: From NFX Signal listing: last dated investments include Sanctuary AI (Seed, Jul 2021), Lightmatter (Series B, May 2021), and FRNGE Inc. (Seed, Feb 2021). No investments found dated after Jul 2021. Using November 1, 2025, the most recent known investment was about 4 years and 4 months ago (>12 months). Therefore classification should be ‘low-active’.

Low Activity – Only known angel investments more than 12 months ago.

Active – Known angel investments between the last 12 and 6 months.

Very Active – Known angel investments in the last 6 months.