TJ Mahony is the Founder and General Partner of Vinyl Capital, a $40 million seed fund based in Boston. See portfolio, sector focus and contact routes.
TJ Mahony is the Founder and General Partner of Vinyl Capital, a $40 million seed fund based in Boston, Massachusetts, and previously served as CEO and co-founder of FlipKey, which was acquired by TripAdvisor[1][4][11]. His investment thesis targets formation-stage commerce infrastructure—specifically B2B SaaS and systems powering payments, logistics, inventory, and customer engagement—at pre-seed, seed, and early Series A stages[9]. Mahony typically invests $250,000 to $3.0 million per deal, with a $1.5 million sweet spot, aiming for 10–20% ownership on seed rounds and often acting as a lead investor[4][9]. Notable portfolio companies include Postscript, Reactive Streaming, Intelligems, and Gordian, all focused on commerce infrastructure rather than consumer-facing products[7][11]. Vinyl Capital explicitly backs founders at the “pre-revenue, pre-product, often pre-DBA” stage, emphasizing vision and technical depth even without a tangible product[9]. Mahony’s distinctive viewpoint, reflected in the firm’s public thesis, asserts that the next wave of billion-dollar companies will be built on commerce infrastructure rather than consumer products, focusing on B2B solutions that power
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