Jim O’Brien is the founder of Ringleader Ventures. Venture Capital · Chicago, IL. Backed by Mike Maddock (Angel) and Mike Maddock.
Jim O’Brien is the founder of Ringleader Ventures. Ringleader Ventures operates in Venture Capital and is based in Chicago, IL. Backers on record include Mike Maddock, Mike Maddock (Angel).
This founder profile draws on disclosed rounds, filings and investor records in the StartupFundraising database and is updated as new funding is recorded. Founders raising now use profiles like this one to study comparable Venture Capital journeys in Chicago — who backed them, at what stage, and how much they raised.
Full founder directory · Investor directory · Company funding database · Fundraising library