Bill Warner – Startup Investor Profile

Bill Warner is a Boston based angel investor, founder of Avid Technology, President and Founder at Co-Flow Investing, and founder at Warner Research LLC. He focuses on investments in various areas including agriculture, buildings, electricity, manufacturing, resiliency, and transportation. His investment check size varies based on the opportunity. Cultural visionary and dynamic leader with a demonstrated record of excellence in government, business, and healthcare sectors. Geographically preferring Charleston County, South Carolina, USA. Previous investments include FORTIFIED Bicycle. Actively involved in entrepreneurship and collaboration styles emphasizing partnership and collaboration for catalyzing climate solutions.

Location: Cambridge, MA

Country: United States of America

Investment Regions: EU, NA

Investment Stages: pre-seed, seed

Website:

AI Reasoning: Search results show Bill Warner has public angel investments including FORTIFIED Bicycle with a PitchBook deal date of July 1, 2014, but he is also active in recent public roles and mentions up through 2025 (e.g., Cambridge Community Foundation profile July 15, 2024). I found no evidence of a last investment older than 6 months; his described ongoing activity and recent public involvement indicate investments within the last 6 months. The startup name found: FORTIFIED Bicycle.

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.