John Hummer

Co-Founder & Founding Partner at Hummer Winblad Venture Partners

Reviewed Updated Mar 27, 2026

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Co-founder of Hummer Winblad Venture Partners, the first VC firm to invest exclusively in software (founded 1989). Transitioned to Founding Partner in 2015; his software-only discipline across seven funds generated major exits (Wind River acquired by Intel for $884M, Powersoft for $940M). Notable for maintaining technical focus despite consumer software exceptions.

Location Sun Valley, Idaho
Check Size $500K-$3M
Last Verified Investment InsideSales (Growth) — ~2015
Social LinkedIn
Stage Focus

Background

John R. Hummer (born May 4, 1948) is an American venture capitalist and retired professional basketball player 1. He grew up in Arlington, Virginia, and attended Washington-Liberty High School 2. At Princeton University, where he earned an AB in English in 1970, Hummer was a three-time All-Ivy League selection in basketball (first-team 1969 and 1970, second-team 1968) and served as co-captain of the 1969-70 team 13. He played on head coach Pete Carril’s inaugural Ivy League championship team (1967-68) and the 1968-69 outright Ivy League championship team 1.

Hummer was the 15th overall selection in the 1970 NBA draft and the first draft choice in Buffalo Braves franchise history 12. He played six seasons in the NBA (1970-1976) for the Buffalo Braves, Chicago Bulls, and Seattle SuperSonics, averaging 6.9 points and 5.3 rebounds per game across 327 career games 2. During his time in Buffalo, he played under three Hall of Fame coaches: Dolph Schayes, Jack Ramsay, and Bill Russell 4. He retired from the Seattle SuperSonics in 1976 3.

After his basketball career, Hummer earned an MBA from Stanford Business School in 1980 3. He entered the venture capital business in 1982 3. In 1989, he co-founded Hummer Winblad Venture Partners (HWVP) with Ann Winblad, pioneering the concept of a venture capital firm investing exclusively in software companies 56. He was joined six months later by Mark Gorenberg 7.

Hummer served as Managing Director of HWVP for over two decades. In 2015, the firm restructured, with Hummer and Winblad transitioning from Managing Directors to Founding Partners as Mitchell Kertzman, Lars Leckie, and Steven Kishi took over active management 8. In 2021, the firm rebranded as Aspenwood Ventures under Leckie and Kishi, closing a $70 million fund 9. Hummer is no longer actively investing but remains available as an advisor 9.

Stated Thesis

(Self-reported: These represent what Hummer and his firm say publicly about their investing approach. See Inferred Thesis for analysis of actual investment behavior.)

HWVP describes itself as “the first venture capital firm to focus exclusively on software investments” 5. The firm’s stated focus has been on early-stage enterprise software companies, typically joining as the first institutional investor, often before the product or product/market fit is established 10.

On the firm’s transition, Hummer stated: “I am even more proud that the firm has now successfully transitioned to a new generation of leadership,” adding that Lars Leckie and Steve Kishi “will go on to have even more success as they continue to fund new enterprise software companies” 9.

HWVP has described its approach as investing from the “disruptive shift away from mainframes to client/server computing through the commodity-driven cloud data centers of today,” remaining true to software-only roots and supporting companies “at the forefront of disruptive advances in the software industry” 5.

Inferred Thesis

Based on 14 verified Hummer-era investments (out of 100+ claimed), the following patterns emerge. Note: sample size is limited; percentages should be treated as directional.

Sector distribution: All 14 verified investments (100%) are in software or software-adjacent companies. Sub-categories include enterprise applications (Powersoft, Extensity, Employease — 3 of 14, 21%), infrastructure and platforms (Wind River Systems, NetDynamics, Octel — 3 of 14, 21%), analytics and data (Arbor Software/Hyperion, Omniture, Birst, StarMine — 4 of 14, 29%), and internet/cloud services (Napster, Global Center, Cenzic, InMage — 4 of 14, 29%).

Stage distribution: HWVP’s model was to be the first institutional investor, often at the seed or Series A stage. The firm website confirms they typically invested before product/market fit was established 10.

Check sizes: The firm deployed $500K to $3M per deal in its earlier funds, consistent with seed and early-stage investing 11.

Exit patterns: Among verified investments, several achieved large outcomes: Powersoft (acquired by Sybase for $940M in 1994), Wind River Systems (acquired by Intel for $884M in 2009), MuleSoft (IPO 2017, acquired by Salesforce for $6.5B), Omniture (IPO 2006), Five9 (IPO, multi-billion dollar public company), Arbor Software/Hyperion (IPO 1995) 10.

Geographic focus: San Francisco Bay Area-based firm, with portfolio concentrated in Silicon Valley and the broader U.S. 11.

Co-investor patterns: Insufficient data to identify systematic co-investor patterns from available sources.

Notable pattern — software-only discipline: Unlike most generalist VCs of the 1989-2015 era, HWVP maintained strict software-only focus across seven funds and multiple technology cycles (PC software, client-server, internet, cloud). This discipline is the firm’s most distinctive characteristic.

Notable gap: Despite the firm’s consumer software exposure (Napster, TheKnot.com), the stated thesis emphasizes enterprise software almost exclusively. Consumer investments appear to be exceptions rather than systematic focus.

Portfolio

Investments attributed to John Hummer personally (per HWVP website and firm sources):

Company Year Stage Sector Outcome Source
Octel Communications ~1989 Early Voice messaging Public company 3
Powersoft 1991 Early Application development Acquired by Sybase, $940M (1994) 108
Wind River Systems ~1990s Early Embedded systems / RTOS Acquired by Intel, $884M (2009) 310
Arbor Software / Hyperion ~1990s Early OLAP / Analytics IPO (1995) 10
Extensity ~1990s Early Enterprise web apps IPO (2001) 10
Global Center ~1990s Early Internet infrastructure 3
Employease ~2000s Early HR software 3
Napster ~1999 Early File sharing Shut down / restructured 6
Cenzic ~2000s Early Application security 3
InMage ~2000s Early Data protection Acquired by Microsoft 3
Baynote ~2000s Early Personalization / Analytics 37
Birst ~2000s Early Business intelligence Acquired by Infor 3
StarMine ~2000s Early Financial analytics 7
Success Metrics ~2008 Early Analytics 7

This table represents a small fraction of Hummer’s 100+ reported investments 1. Only investments with specific sourcing to Hummer personally are included. Many additional HWVP investments (MuleSoft, Five9, Omniture, InsideSales, etc.) were firm-level investments where individual partner attribution is not confirmed.

In Their Own Words

On the firm’s leadership transition: “I am even more proud that the firm has now successfully transitioned to a new generation of leadership.” — John Hummer, Aspenwood Ventures website 9.

On the next generation: Lars Leckie and Steve Kishi “will go on to have even more success as they continue to fund new enterprise software companies.” — John Hummer, Aspenwood Ventures website 9.

On his time in Buffalo as a basketball player: “I was the only player in those early years to live downtown… I enjoyed getting out and talking with the people.” — John Hummer, Buffalo Nation interview, 2011 4.

On his basketball career: “I loved Buffalo. Sure there were some ups and downs, but I really enjoyed those days.” — John Hummer, Buffalo Nation interview, 2011 4.

Note: Despite extensive searching, very few public quotes from Hummer about his investing philosophy or venture capital approach were found. Hummer appears to have maintained a low public profile compared to his co-founder Ann Winblad.

What Founders Say

No independently sourced founder testimonials specifically about John Hummer were found. Founder quotes about the broader HWVP team exist but cannot be attributed to Hummer’s individual involvement:

The HWVP website features testimonials from portfolio CEOs praising the firm’s partnership model, including MuleSoft CEO Greg Schott describing the firm’s support as “invaluable” during scaling, and Omniture CEO Josh James noting consistent advocacy during favorable and challenging periods 10. These testimonials reference the firm generally rather than Hummer specifically.

Connections

  • Co-founder, Hummer Winblad Venture Partners — alongside Ann Winblad (1989) 5
  • Board member, StarMine — as of 2008 7
  • Board member, Baynote — as of 2008 7
  • Board member, Success Metrics — as of 2008 7
  • Board member, Elastra — as of 2008 7
  • Colleague of Mitchell Kertzman — Kertzman was CEO of Powersoft (HWVP portfolio company) before joining HWVP as Managing Director in 2003 812
  • Princeton basketball teammate of Geoff Petrie — co-captains of the 1969-70 Princeton Tigers 1
  • Played for coach Pete Carril — Princeton basketball, Ivy League championships 1968-1969 1

Sources


  1. John Hummer, FactSnippet, “11 Facts About John Hummer,” accessed March 2026. https://www.factsnippet.com/site/facts-about-john-hummer.html

  2. Basketball Reference, “John Hummer Stats,” accessed March 2026. https://www.basketball-reference.com/players/h/hummejo01.html

  3. HWVP website, “John Hummer,” accessed March 2026. https://hwvp.com/team/john-hummer

  4. Buffalo Nation, “Catching up with: John Hummer, Buffalo Braves,” September 30, 2011. https://buffalonation.wordpress.com/2011/09/30/catching-up-with-john-hummer-buffalo-braves/

  5. HWVP website, “Investors in Early-Stage Enterprise Software Companies,” accessed March 2026. https://hwvp.com/

  6. Hummer Winblad Venture Partners, Gilion VC Mapping, accessed March 2026. https://vc-mapping.gilion.com/vc-firms/hummer-winblad-venture-partners

  7. The Org, “John Hummer — Seattle Partner at Hummer Winblad Venture Partners,” accessed March 2026. https://theorg.com/org/hwvp/org-chart/john-hummer

  8. StrictlyVC, “Hummer Winblad Reboots,” April 6, 2015. https://strictlyvc.com/2015/04/06/hummer-winblad-reboots/

  9. Aspenwood Ventures website, “Team,” accessed March 2026. https://aspenwoodvc.com/team/

  10. HWVP website, “Portfolio / Success Stories,” accessed March 2026. https://hwvp.com/success-stories

  11. Foundersuite, “Hummer Winblad Venture Partners Investor Profile,” accessed March 2026. https://foundersuite.com/firms/hwvp-hummer-winblad-venture-partners

  12. Mitchell Kertzman, Wikipedia, accessed March 2026. https://en.wikipedia.org/wiki/Mitchell_Kertzman