Kyle A. Lefkoff, Founder & General Partner at Boulder Ventures, Boulder, CO — verified investor profile. See sector focus and contact routes.
Kyle A. Lefkoff is the Founder and General Partner of Boulder Ventures, a venture capital firm based in Boulder, Colorado, where he has spent 39 years investing in 65 Colorado companies [1][2]. His investment thesis targets early-stage information technology and biotechnology (life sciences) companies exclusively in the Colorado Front Range and Mid-Atlantic regions [5][6]. While specific check sizes and lead/follow behavior are not publicly detailed for Lefkoff individually, the firm manages eight funds totaling approximately $429 million and emphasizes hands-on support through pre-investment and early growth phases [5][7]. Notable portfolio companies include Array BioPharma, which was sold to Pfizer for $11.4 billion, and ArcherDX, sold to Invitae, alongside life science successes like NeXstar Pharmaceuticals (sold to Gilead) and IT exits such as Lefthand Networks (sold to HP) [2][9]. Lefkoff also co-founded Array BioPharma, giving him a distinctive founder’s perspective on long-cycle company building [9]. He applies risk management skills from his parallel career as a mountain guide to help founders navigate high-consequence business environments [4].
This profile is part of the StartupFundraising investor database: focus, portfolio history, disclosed location and contact routes, refreshed as new filings and rounds are ingested. Founders use it to check fit before reaching out and to find investors in Boulder.
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