Greg Gottesman

Co-Founder & Managing Director, Pioneer Square Labs at pioneer-square-labs

Reviewed Updated May 1, 2026

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Location Seattle, WA
Check Size Pre-seed and seed (PSL Ventures II: $100M, 2021)
Last Verified Investment Dropzone AI (Series B) — Jul 17, 2025
Social @greggottesman LinkedIn
Stage Focus
pre-seed seed
Sector Focus
ai marketplaces b2b-saas fintech proptech climate cybersecurity consumer

Background

Greg Gottesman is a co-founder and Managing Director of Pioneer Square Labs (PSL), a Seattle-based startup studio and venture fund he launched in October 2015 with Mike Galgon, Geoff Entress, and Ben Gilbert 123. PSL describes itself as a studio that “rapidly ideates, builds, and spins out technology companies,” and as of 2024 had spun out more than 35 companies and operated an affiliated seed/early-stage venture fund, PSL Ventures 45.

Before founding PSL, Gottesman spent roughly 20 years at Madrona Venture Group, Seattle’s largest early-stage venture firm, where he was one of three initial Managing Directors after joining in 1997; he transitioned to a Venture Partner role at Madrona in mid-2015 in connection with PSL’s launch 167. Gottesman is the co-founder, founding CEO, and longtime board member of Rover (NASDAQ: ROVR), the pet-care marketplace, which was incubated within Madrona after Gottesman pitched the original “A Place for Rover” idea at a Seattle Startup Weekend in 2011; Rover later went public and was acquired by Blackstone for $2.3 billion in 2024 189.

Gottesman holds an A.B. from Stanford University (Phi Beta Kappa, honors with distinction), an MBA from Harvard Business School (honors with distinction), and a J.D. from Harvard Law School (honors), where he was an editor of the Harvard Law Review 1. He has been an adjunct faculty member at the University of Washington (Allen School of Computer Science & Engineering and Foster School of Business) for more than 25 years 1.

At PSL, Gottesman currently represents the firm on the boards of Boundless, Ever.green, Gumshoe, Joon, Kevala, and SingleFile, and manages PSL’s investments in Arrived, Dropzone AI, Maximal Learning, Mudstack, Overland AI, Read AI, Shipium, and Valent 1.

Stated Thesis

(Self-reported: These represent what Gottesman and PSL say publicly. See Inferred Thesis below for analysis of actual investment behavior.)

On Gottesman’s own PSL bio page, he summarizes his view of venture investing this way: “Venture is about finding truly great entrepreneurs and supporting their efforts in every way possible. The rest is noise” 1. He also writes: “I think the most important characteristic of a founder is self-awareness. If you know where you’re strong and weak, you can assemble a team filling gaps” 1.

PSL Ventures publicly positions itself as a pre-seed and seed-stage investor focused on the Pacific Northwest, with a stated emphasis on backing companies very early — at the launch of its $100 million PSL Ventures II fund in 2021, the firm reported that roughly 70% of its portfolio was funded within two months of incorporation; portfolio mix was disclosed as approximately 67% B2B and 33% consumer, with explicit diversity targets (one in three companies female-founded, one in eight BIPOC-founded) 5. PSL also states that PSL-co-founded companies represent “roughly 15% of Washington State early-stage VC-funded companies” 5.

In March 2024, PSL announced an AI-focused co-investment partnership with Silicon Valley firm Mayfield in which PSL spinouts focused on AI receive a minimum of $1.5 million in seed funding from PSL Ventures and Mayfield combined 10.

Inferred Thesis

Sample size note: The analysis below is based on 14 verified PSL-Gottesman investments where Gottesman either represents PSL on the board or manages the investment, plus PSL portfolio context. PSL’s stated cumulative output is “more than 35” spinouts plus PSL Ventures fund investments; many of those companies do not have a Gottesman-specific role disclosed, so percentages here are computed against the 14-company verified set 14.

Stage. Pre-seed and seed. PSL Ventures’ own framing is pre-seed/seed 5, and Gottesman’s role on most managed companies dates to inception (studio spinouts) or to the seed round (e.g., Dropzone AI Series A in 2024) 11. He has continued to follow on into later rounds where PSL is an existing investor — e.g., Dropzone AI Series B (July 2025) and Read AI Series B (October 2024) 1112.

Sector mix across the 14 verified investments Gottesman personally represents or manages:

  • AI / applied AI: Dropzone AI (cybersecurity AI), Read AI (meeting AI), Maximal Learning (AI for education), Mudstack (AI for 3D/game art), Overland AI (autonomous off-road), Kevala (healthcare workforce, AI scheduling) — 6 of 14 (43%) 1111213. This concentration aligns with PSL’s 2023–2024 explicit pivot toward applied AI as a studio theme 410.
  • B2B software and operations: Shipium (e-commerce fulfillment), SingleFile (compliance ops), Gumshoe — 3 of 14 (21%) 1.
  • Fintech / proptech / climate: Arrived (fractional real estate), Ever.green (climate/carbon), Joon (employee benefits/spending), Boundless (immigration legal tech), Valent — 5 of 14 (36%) 1.

Geography. Heavily Seattle / Pacific Northwest, consistent with PSL Ventures’ stated regional mandate; PSL itself reports that its co-founded companies make up “roughly 15% of Washington State early-stage VC-funded companies” 5.

Founder profile patterns. PSL’s studio model means Gottesman frequently helps recruit founders rather than back pre-formed teams; the typical PSL CEO is a domain expert paired with PSL as institutional co-founder (the Rover-with-Aaron-Easterly template) 89. Gottesman has publicly stated that “the most important characteristic of a founder is self-awareness” 1 and, in earlier writing, has emphasized finding co-founders who are “someone you want next to you in a foxhole” 14.

Co-investor patterns. Across the 14-company verified set, the most frequent named co-investors are Madrona Venture Group (Gottesman’s former firm — at Dropzone AI, Read AI, others) 1112, Mayfield (via the formal PSL-Mayfield AI partnership) 10, Goodwater Capital (Read AI) 12, Theory Ventures (Dropzone AI lead) 11, and Decibel Partners / In-Q-Tel (Dropzone AI) 11. The pattern reflects PSL’s positioning as a Seattle institutional co-founder that hands off later-stage leadership to top-tier coastal funds.

Notable gaps in public data. PSL does not publish a per-investor portfolio table, and Gottesman’s pre-2015 Madrona-era personal involvement (e.g., as Madrona’s lead partner on Rover and other Madrona portfolio companies) is harder to disambiguate from firm-level investments. The Madrona-era portfolio is included below only where Gottesman’s role is specifically attested.

Portfolio

Company Year Stage Source
Rover (NASDAQ: ROVR) 2011 Seed / co-founder & CEO 189
Boundless ~2017 Studio spinout / seed (board) 14
Arrived ~2019 Seed (PSL investment, managed by Gottesman) 1
Ever.green ~2021 Studio spinout / seed (board) 1
Gumshoe ~2022 Studio spinout / seed (board) 1
Joon ~2022 Studio spinout / seed (board) 1
Kevala ~2020 Seed (board) 1
SingleFile ~2021 Studio spinout / seed (board) 1
Maximal Learning ~2023 Seed (PSL, managed by Gottesman) 1
Mudstack ~2023 Seed (PSL, managed by Gottesman) 1
Overland AI ~2023 Seed (PSL, managed by Gottesman) 1
Shipium ~2019 Seed (PSL, managed by Gottesman) 1
Valent ~2023 Seed (PSL, managed by Gottesman) 1
Read AI 2024-10-28 Series B follow-on ($50M; Madrona, Goodwater, Smash, PSL Ventures) 112
Dropzone AI 2024-04 Series A ($16.85M; Theory lead, PSL, Decibel, IQT) 11
Dropzone AI 2025-07-17 Series B ($37M; Theory lead, Madrona, Decibel, PSL, IQT) 11

Limitations: PSL has spun out 35+ companies and PSL Ventures has invested in additional names; the 14 companies above are those where Gottesman’s specific role (board seat or “managed by”) is attested on his PSL bio 1. Other PSL portfolio companies (Recurrent, Boltive, Copper, Glow, etc.) are not personally attributed to Gottesman and are therefore excluded from this table. Earlier Madrona-era investments where Gottesman was the lead partner exist (he was at Madrona 1997–2015) but specific deal-level attribution requires per-round primary sources and is not included pending verification.

In Their Own Words

From Gottesman’s PSL bio page 1:

“Venture is about finding truly great entrepreneurs and supporting their efforts in every way possible. The rest is noise.”

“I think the most important characteristic of a founder is self-awareness. If you know where you’re strong and weak, you can assemble a team filling gaps.”

From Gottesman’s December 2013 AllThingsD column, “A ‘Breaking Bad’ Guide to Entrepreneurship” 14:

“Every startup goes through major ups and downs… Find someone you want next to you in a foxhole.”

“You can’t sleep at night because you are thinking about it. You find yourself taking longer showers because you are daydreaming about your would-be company.”

“Assume that your employees, competitors and partners are listening. Because they are.”

“If you want to sleep better at night, stay away from the black (and the gray).”

From Gottesman’s August 4, 2021 post on X celebrating Rover’s IPO 15:

“Woof! Huge IPO milestone today for @RoverDotCom! Congrats to my co-founders @aaroneasterly and Phil Kimmey.”

What Founders Say

No independently sourced founder testimonials about working directly with Greg Gottesman as an investor were located in this research pass. PSL’s website does not publish per-investor founder testimonials, and the announcements reviewed (Read AI Series B, Dropzone AI Series A and Series B) include quotes from operators and lead investors but not portfolio-founder commentary specifically about Gottesman’s contribution 1112. This section should be revisited when podcast transcripts featuring Rover, Boundless, or Read AI founders that discuss Gottesman by name can be sourced.

Connections

  • Co-founder, Pioneer Square Labs (2015–present) — alongside Mike Galgon (co-founder of aQuantive, acquired by Microsoft for $6.2B), Geoff Entress (longtime Seattle angel and former Madrona colleague), and Ben Gilbert (now Venture Partner at PSL and co-host of the Acquired podcast) 137.
  • Co-founder & former CEO, Rover (NASDAQ: ROVR) — worked with co-founders Aaron Easterly (CEO) and Phil Kimmey 18915.
  • Former Managing Director, Madrona Venture Group (1997–2015) — one of three initial Managing Directors; transitioned to Venture Partner role with PSL launch 167.
  • Board member: Boundless, Ever.green, Gumshoe, Joon, Kevala, SingleFile (all on behalf of PSL) 1.
  • Adjunct faculty (~25+ years), University of Washington — Paul G. Allen School of Computer Science & Engineering and Foster School of Business 1.
  • Co-investment relationships: Madrona Venture Group (former colleagues; frequent PSL co-investor in Read AI, Dropzone AI), Mayfield (formal PSL–Mayfield AI partnership announced March 2024), Theory Ventures (lead on Dropzone AI Series A and B), Goodwater Capital, Decibel Partners, In-Q-Tel 101112.

Sources

  1. Pioneer Square Labs, “Greg Gottesman — Team,” firm bio page. Accessed May 2026. https://www.psl.com/team/greg-gottesman↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩

  2. Pioneer Square Labs, “Team” page. Accessed May 2026. https://psl.com/team↩

  3. Pioneer Square Labs, Wikipedia entry. Accessed May 2026. https://en.wikipedia.org/wiki/Pioneer_Square_Labs↩↩

  4. Pioneer Square Labs, “Companies” page. Accessed May 2026. https://www.psl.com/companies↩↩↩↩

  5. Pioneer Square Labs, “Launching PSL Ventures II, a $100 Million Seed Fund for the Pacific Northwest,” March 4, 2021. https://www.psl.com/feed-posts/launching-psl-ventures-ii-a-100-million-seed-fund-for-the-pacific-northwest↩↩↩↩↩

  6. Madrona Venture Group, “Greg Gottesman — Archives,” firm page. Accessed May 2026. https://www.madrona.com/greg-gottesman/↩↩

  7. Feld Thoughts (Brad Feld), “Pioneer Square Labs — Investing More In Seattle,” October 2015. https://feld.com/archives/2015/10/pioneer-square-labs-investing-seattle/↩↩↩

  8. Madrona Venture Group, “Celebrating the Rover Journey.” Accessed May 2026. https://www.madrona.com/celebrating-the-rover-journey/↩↩↩↩

  9. Pivot CPAs, “The Inspiring Story of the Team Behind Rover.com,” April 8, 2021. https://www.pivotcpas.com/2021/04/08/the-inspiring-story-of-the-team-behind-rover-com/↩↩↩↩

  10. GeekWire, “Seattle’s Pioneer Square Labs and Silicon Valley stalwart Mayfield form AI co-investing partnership,” March 2024. https://www.geekwire.com/2024/seattles-pioneer-square-labs-and-silicon-valley-stalwart-mayfield-form-ai-co-investing-partnership/↩↩↩↩

  11. Dropzone AI press release, “Dropzone AI Raises $37M to Scale AI SOC Analyst Platform,” July 17, 2025. https://www.dropzone.ai/press-release/dropzone-ai-37m-series-b-funding-ai-soc-agents↩↩↩↩↩↩↩↩↩↩

  12. TechCrunch, “Read AI raises $50M to integrate its bot with Slack, email and more,” October 28, 2024. https://techcrunch.com/2024/10/28/read-ai-raises-50m-to-integrate-its-bot-with-slack-email-and-more/↩↩↩↩↩↩↩

  13. Pioneer Square Labs, “Seattle startup Read AI raises $50M to fuel ‘copilot everywhere’ vision for enterprise software,” October 28, 2024. https://www.psl.com/feed-posts/read-ai-announces-50-million-series-b-to-deliver-copilot-everywhere↩

  14. AllThingsD (Greg Gottesman, contributor), “A ‘Breaking Bad’ Guide to Entrepreneurship,” December 3, 2013. https://allthingsd.com/20131203/a-breaking-bad-guide-to-entrepreneurship/↩↩

  15. Greg Gottesman (@greggottesman) on X, “Woof! Huge IPO milestone today for @RoverDotCom!” August 4, 2021. https://x.com/greggottesman/status/1422419575895826432↩↩