Cowboy Ventures

Quick read

Cowboy Ventures is a seed-stage venture capital firm founded in 2012 and headquartered in Palo Alto, California. Founded by Aileen Lee — who coined the term 'unicorn' — the firm backs pre-seed and seed-stage technology founders across enterprise, fintech, AI, and consumer. In 2024 it closed $260M across two funds, including its first opportunity vehicle, the Mustang Fund.

Key facts

Founded

2012

Founders

Aileen Lee

Employees

2-10

Sectors

generalist, saas, fintech, ai, healthcare, consumer

Website

cowboy.vc

Investment thesis

Cowboy Ventures backs pre-seed and seed-stage technology founders building software companies across enterprise SaaS, fintech, AI, healthcare, and consumer. The firm runs a deliberately small team to stay close to founders, and the Mustang Fund extends that model by reserving capital to double down on breakout portfolio winners.

Recent activity

• May 2026investment
  Cowboy Ventures invested in Eisen, a financial software (compliance) company, as part of an $18.5M round. tracxn.com
• May 2026investment
  Cowboy Ventures participated in Basata's $21M Series A. Basata automates healthcare operations. tracxn.com
• Apr 2026investment
  Cowboy Ventures co-invested in Petual's $20M round alongside Andreessen Horowitz and First Round Capital. tracxn.com
• 2026press
  Managing Partner Aileen Lee received the Trailblazer award at the Women's Venture Capital Summit 2026. linkedin.com
• 2026leadership
  Donna Boyer joined Cowboy Ventures as Venture Partner, focused on healthcare and wellness investments. She previously held CPO and product leadership roles at Teladoc Health, Airbnb, and StitchFix. cowboy.vc
• Feb 2026press
  Cowboy Ventures hosted AI for Professional Services office hours in Palo Alto, meeting with pre-seed founders building AI products across law, accounting, HR, cybersecurity, and IT. linkedin.com
• 2026leadership
  Aileen Lee posted an open role for a Chief of Staff at Cowboy Ventures, based in Palo Alto/SF, to work directly with her on firm operations, deal sourcing, and portfolio support. linkedin.com
• 2026press
  Aileen Lee named Trailblazer at the Women's Venture Capital Summit 2026. linkedin.com
• Jan 2025leadership
  Cowboy Ventures welcomed Caroline Duffy to the team. linkedin.com
• 2024product
  Cowboy Ventures hosted Office Hours for AI for Professional Services startups, meeting founders building across law, accounting, cybersecurity, IT, and finance. linkedin.com
• 2024fundraise
  Cowboy Ventures closed two new funds totaling $260M: a $140M fourth flagship fund and a $120M opportunity fund called the Mustang Fund. zoominfo.com
• Sep 2024investment
  Cowboy Ventures participated in Palla Financial's Series A round. tracxn.com

Notable investments

• EisenUndisclosed ($18.5M total)May 2026tracxn.com
• BasataSeries A ($21M)May 2026tracxn.com
• PetualUndisclosed ($20M)Apr 2026tracxn.com
• Palla FinancialSeries ASep 2024tracxn.com
• CapStack TechnologiesPre-Seed2024zoominfo.com
• Getaway2024hub.waveup.com
• BasataSeries A2025linkedin.com
• CapstackPre-Seed2025zoominfo.com
• EisenSeries A2025linkedin.com
• EisenSeedMay 2026pitchbook.com
• PetualInvestmentApr 2026tipranks.com
• UplimitSeries AJul 2024tracxn.com

Key people

Named individuals at the firm. We don't expose direct email or phone — use their LinkedIn for outreach.

• Aileen Lee · Managing Partner & Founder
  LinkedIn
• Amanda Robson · Partner
• Allegra Simon · Partner
  LinkedIn
• Ryan Stroub · Partner
  LinkedIn
• Meghan Fernandez · Team Member
  LinkedIn

Sources

• Gunderson Dettmer Advises Cowboy Ventures in its $260M closing of two new funds
• Cowboy Ventures investment portfolio | PitchBook
• Cowboy Ventures - 2026 Investor Profile | Tracxn
• Cowboy Ventures Portfolio, Investments & Funding History | TipRanks
• Cowboy Ventures | LinkedIn
• How we work | Cowboy Ventures
• https://tracxn.com/d/venture-capital/cowboy-ventures/__bma6N4JhxM8oeDKWh3mnH8k07c7Ut89qDMAI7T-JnAI
• https://www.linkedin.com/in/aileenwlee
• https://www.zoominfo.com/c/cowboy-ventures/371822731
• https://www.linkedin.com/posts/cowboy-ventures_cowboy-ventures-welcoming-caroline-duffy-activity-7283503176618508288-FgTe
• https://www.linkedin.com/posts/cowboy-ventures_what-are-early-stage-founders-learning-as-activity-7434389836293144577-26Pu
• https://www.cowboy.vc/news/welcoming-donna-boyer-to-team-cowboy
• https://www.linkedin.com/in/aileenwlee/

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