Boulder, Colorado · Est. 1995 · 5,430 ft
Early-stage IT and biotech across the Colorado Front Range and the Mid-Atlantic — two underserved geographies, thirty years on the same rope.
The partners, roped up on the Flatirons above Boulder.
Pitch 01 · The Firm
Boulder Ventures backs early-stage information technology and biotechnology companies in two places the coasts tend to overlook: the Colorado Front Range and the Mid-Atlantic.
Nine funds and roughly $500 million later, we still work the way we started — decades-long relationships with entrepreneurs and investors, first checks that come with board seats, and the patience to stay tied in from term sheet to exit.
Pitch 02 · The Route So Far
Boulder Ventures I through IX — from a first fund on the Front Range to the largest venture-backed life-sciences exit in Colorado history.
Base camp
Boulder Ventures is founded in Boulder, Colorado — a first fund for IT and biotech founders the coasts weren’t reaching.
The long pitch
Kyle Lefkoff founds Array BioPharma in May and takes the chair he’ll hold for the next two decades.
The summit
Pfizer acquires Array for $11.8 billion — the largest acquisition of a venture-backed life-sciences company in Colorado’s history.
The next climb
Fund IX closes at $55 million in April — 27 new investors alongside roughly 100 long-time LPs.
≈$500M cumulative across nine funds · company, exit and IPO counts across Funds I–VIII.
Pitch 03 · The Proof
$11.8B
Array BioPharma → Pfizer · 2019
Patience, compounded. Kyle Lefkoff founded Array BioPharma in May 1998 and chaired its board through August 2018.
Twenty-one years after founding, Pfizer acquired the company for $11.8 billion — the largest acquisition of a venture-backed life-sciences company in the history of Colorado. That is what a long climb looks like on a term sheet.
Array BioPharmaColorado · life sciences · acquired by Pfizer, 2019
Pitch 04 · What We’ve Done
A selection from Funds I–IX, active and realized — logos exactly as the founders drew them.
→ Pfizer · $11.8B
NYSE IPO
→ Qualtrics
→ Cisco
→ Airbus
$100M Series B · 2026
Pitch 05 · Who We Are
Four general partners, a CFO who writes the essays, and one Floor Manager.
Founder & General Partner · Boulder
39 years in venture. Founded Array BioPharma in 1998 and chaired it for two decades — to the $11.8B Pfizer acquisition.
1986 American K2 expedition · founding chairman, AIARE · professional mountain guide
General Partner · Boulder
38 years in early-stage IT. Mohr Davidow from 1984, Boulder Ventures since 1998. Boards from Rally Software to BroadHop.
Stanford engineering · Harvard MBA
General Partner · Boulder
Founded BroadHop, acquired by Cisco — then ran mobility and 5G there as a GM. Leads Spectrum Effect, Symmera, Opanga.
VC-chair, Access Fund · Colorado College economics
General Partner · Mid-Atlantic
27+ years covering the Mid-Atlantic, with Boulder Ventures since 2002. Exits include Clarabridge → Qualtrics and Metron → Airbus.
Kauffman Fellow · Tuck MBA · Tufts
Chief Financial Officer · Boulder
Keeps nine funds balanced — and writes every essay in Perspectives, our journal of mountains and markets.
Author of all eleven Perspectives essays
Floor Manager · Boulder
Bernese Mountain Dog. Manages the Boulder office floor — literally.
Full-time morale · zero carry
Pitch 06 · Perspectives
Featured essay
Kyle Lefkoff — mountain guide, founding chairman of AIARE.
Pitch 07 · News
Pitch 08 · Base Camp
Boulder Ventures Ltd.
1941 Pearl Street, #300
Boulder, CO 80302
303-444-6950
