Retool

Summary active Updated Mar 19, 2026

This profile is AI-generated. If you spot an error, please help us fix it by sharing a URL to the correct information.

Location San Francisco, California
Founded 2017
Latest Stage Series C
Total Raised $141M

Investors

Daniel Gross seed (2017)
Patrick Collison series-c2 (2022)
Elad Gil series-c (2021)
Ron Conway Seed (2017)
John Collison Seed/Series A (also Series C2) (2019)
Nat Friedman Seed/Series A (2019)
Greg Brockman Seed (2018)
Paul Graham ~2017 (2017)
Dalton Caldwell ~2017 (2017)
Ambar Bhattacharyya ~2022 (2022)
Carl Eschenbach Growth (2020)
Justin Kan Early (2018)
Y Combinator seed (2017)
Sequoia Capital series-a (2019)
Sequoia Capital series-b (2020)
Sequoia Capital series-c2 (2022)
stripe Series A (2019)
SV Angel Seed (2017)
independent Early stage (2018)
NFDG Seed/Series A (2019)
Maverick Ventures ~2022 (2022)
gil-capital Early stage (2018)
Goat Capital Early (2018)
Standard Capital ~2017 (2017)

Founders

David Hsu CEO & Founder

About

Retool is a developer platform for building internal tools, founded in 2017 by David Hsu. The company went through Y Combinator’s Winter 2017 batch and has grown to serve tens of thousands of companies 1. Retool has taken a distinctive approach to fundraising, raising small rounds at lower valuations to minimize dilution and preserve upside for employees 2.

Funding History

Date Round Amount Lead Co-investors
Aug 2017 Seed $1M Y Combinator Daniel Gross, John Collison, Nat Friedman 3
Oct 2019 Series A $25M Sequoia Capital 4
Oct 2020 Series B $50M Sequoia Capital 1
Dec 2021 Series C $20M Sequoia Capital, Elad Gil, Nat Friedman, Daniel Gross, John Collison, Patrick Collison 5
Jul 2022 Series C2 $45M Sequoia Capital John Collison, Patrick Collison, Nat Friedman, Elad Gil, Daniel Gross, Caryn Marooney 2

Total raised: approximately $141M across 5 rounds 3. Valued at $3.2B as of Series C2 2.

What Investors Say

No verified investor quotes found at this time.

What Founders Say

No independently sourced founder testimonials found.

Sources


  1. Retool Blog, “Retool raises $50M led by Sequoia,” October 2020, accessed March 2026. https://retool.com/blog/retool-raises-50-million-led-by-sequoia

  2. Retool Blog, “Retool’s Series C2 fundraise,” July 2022, accessed March 2026. https://retool.com/blog/series-c2

  3. Clay, “How Much Did Retool Raise? Funding & Key Investors,” accessed March 2026. https://www.clay.com/dossier/retool-funding

  4. Crunchbase, “Series A - Retool,” accessed March 2026. https://www.crunchbase.com/funding_round/retool-series-a–2e76492

  5. Retool Newsroom, “Series C: Raising less money at lower valuations,” December 2021, accessed March 2026. https://retool.com/newsroom/series-c