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Will Quist

Partner

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At a glance

Full Name
William Quist
Title
General Partner
Firm
Slow Ventures
Firm Type
Venture Capital
Investment Stage
Pre-seed, Seed, Series A, Series B
Check Size
$500K-$2.0M; reported sweet spot $1M
Target Company Profile
Startups using venture capital to test a novel risk or hypothesis that can materially increase business value; Slow says it leads seed and pre-seed rounds across the U.S.
Sector Focus
Generalist; Signal lists banking, future of work, and health care services as areas of interest, and Slow lists security, fintech, buyouts/rollups, SaaS, crypto, consumer, healthcare, and the creator economy.
Geographic Focus
United States
Location
San Francisco, California

Background

William Quist is a general partner at Slow Ventures, an early-stage venture firm with offices in San Francisco, Boston, and New York. Slow’s site describes him as “Excitable GP” and notes that he was formerly a partner at Industry Ventures. Signal identifies him as a partner at Slow Ventures in San Francisco and lists his current investing position at the firm.

Quist joined Slow Ventures in 2015, according to Signal. Before Slow, he worked at Industry Ventures in investment roles that Signal lists as associate, vice president, managing director, and partner. Earlier in his career, Signal lists him as an analyst at Banc of America Securities from 2005 to 2007 and as an editor at AlwaysOn Network from 2004 to 2005.

Signal lists Quist’s education as University of California, Berkeley, and Bellarmine College Preparatory. His investing profile is tied to Slow’s broader seed-focused strategy: Slow says it has invested in the earliest rounds of companies including PillPack, Slack, Solana, Teamshares, Airtable, Ro, Venmo, Metropolis, Robinhood, Postmates, and Livongo.

Investment Thesis & Focus

  • Slow Ventures says it leads seed and pre-seed rounds for startups across the U.S. and is flexible on sector, round construction, and company structure.
  • Slow frames its capital as funding “rapid experimentation with significant, demonstrable results” and says venture capital should test a novel risk or hypothesis that cannot be funded another way.
  • Slow’s stated thesis emphasizes capital efficiency, sound businesses, and the road to profitability rather than fundraising momentum.
  • The firm says it helps founders with money, advice, access, capital-markets judgment, and introductions, but does not operate a large platform or portfolio operations team.
  • Signal lists Quist’s investment range as $500K-$2.0M, with a $1M sweet spot.
  • Signal ranks Quist across Web3/crypto, consumer internet, health IT, health and hospital services, and SaaS at pre-seed, seed, Series A, and Series B.
  • Signal lists Quist as most interested in banking, future of work, and health care services, and not interested in marketing technologies, content, or lending.

Notable Investments

  • Starday Foods - Food company; Signal lists Quist on an April 2025 Series A round of $8M.
  • AgentAI - AI company; Signal lists Quist on a July 2024 seed round of $4M.
  • The Lumber Manufactory - Builds miniaturized lumber mills; Signal lists Quist on a May 2024 seed round of $4M.
  • Breakr - Creator/music marketing marketplace; Signal lists Quist on seed financings in July 2021 and December 2023.
  • Portal - Embedded wallet infrastructure; Signal lists Quist on a February 2023 seed round of $5M.
  • Yotta - Consumer fintech/savings product; Signal lists Quist on a September 2020 seed round and January 2021 Series A.
  • Karuna Health - Health care services company; Signal lists Quist on a May 2019 seed round of $4M.

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