Dan Scheinman

Founder, Scheinman Angel Fund at independent

Reviewed Updated Mar 19, 2026

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Silicon Valley angel investor and former Cisco General Counsel. Portfolio of 20 verified investments (of ~87 claimed) is 35% enterprise software, 25% cybersecurity, with preference for experienced founders 35+. Most famous for Zoom's $250K seed investment (2,800x return), plus IPO-backed exits in SentinelOne, Arista Networks, and Rubrik. Known for 'boring is beautiful' enterprise infrastructure approach.

Location San Francisco Bay Area, CA
Check Size $50K-$250K
Last Verified Investment Ariksa (Angel) — Aug 2020
Social LinkedIn
Stage Focus

Background

Dan Scheinman is a Silicon Valley angel investor and former technology executive 12. He holds a B.A. in Politics from Brandeis University and a J.D. from Duke University School of Law (class of 1987) 13.

After graduating from Duke Law in 1988, Scheinman practiced as an associate at DLA Piper Rudnick Gray Cary for three years before transitioning to corporate leadership 13.

Scheinman spent 18 years at Cisco Systems (January 1997 to April 2011), contributing to the company’s growth from $100 million to over $40 billion in annual revenue 123. He held multiple senior positions: as General Counsel, he pioneered using technology to reduce legal costs; as head of Corporate Development, he oversaw $20 billion or more in acquisitions with an emphasis on “emotional intelligence” (EQ) and team compatibility; and most recently served as Senior Vice President and General Manager of Cisco Media Solutions Group 123.

Since April 2011, Scheinman has been a full-time angel investor, operating through the Scheinman Angel Fund 24. He departed Cisco on the same day as Eric Yuan, who had been Vice President of Engineering for Cisco’s videoconferencing division 13.

Scheinman wrote the first check into Zoom — a $250,000 investment made before even hearing Yuan’s pitch, based on his deep familiarity with Yuan from their Cisco days 13. That initial investment grew to approximately $700 million, a roughly 2,800x return 5. He has served on Zoom’s board of directors since January 2013 6. He also connected Yuan to his cousin, Jim Scheinman, who helped name the company 7.

Scheinman has been named to the NYT/CB Insights Top 100 VCs multiple years and is a minority owner of the San Francisco Giants 58.

Stated Thesis

Scheinman has publicly described his investment philosophy as finding “disruptive companies that the herd isn’t betting on,” stating: “If you really want to do well as an angel investor, you have to find disruptive companies that the herd isn’t betting on” 7.

He has articulated a “boring is beautiful” approach — investing in quietly essential enterprise infrastructure, security, and tooling rather than flashy consumer plays 5.

On what he looks for in founders: “The things that matter most for the early investor are the founder and the go-to-market strategy” 1. He seeks founders with “unfair insight” — firsthand experience of pain at $1B+ scale 5.

His original niche strategy focused on experienced founders over 35, exploiting Silicon Valley’s bias against older founders 13. He has stated there are “good business reasons to like older founders — first, they understood their go-to-market strategy and had existing customer relationships” 3.

Scheinman has also said: “When I have that feeling of being surrounded by greatness, that’s the single biggest signal. Because great people will figure things out” 7.

On risk: “As an investor, my biggest risk is missing out on the next Zoom — there is no risk greater than missing a good company” 3.

Inferred Thesis

Based on 20 verified investments (Scheinman claims ~87 total, though only ~20 could be independently confirmed with sources), the following patterns emerge:

Sector breakdown: - Enterprise software/infrastructure: 7 of 20 (35%) — Zoom, Arista Networks, Think Big Analytics, Treasure Data, Spekit, Altostra, eshare.net - Cybersecurity: 5 of 20 (25%) — SentinelOne, CyCognito, Ariksa, IrisAgent, Cmd (if counted) - Data/analytics: 3 of 20 (15%) — Treasure Data, Imubit, Think Big Analytics - Consumer/social: 3 of 20 (15%) — Tango.me, Tomfoolery, Greenwave Systems - Other: 2 of 20 (10%) — Kodiak Data, Testim.io

Stage distribution: Almost exclusively pre-seed and seed. Check sizes range from $50K to $250K, with a sweet spot of $150K 4. Scheinman invests in one or two companies per year using personal capital 4.

Geographic focus: US and Israel (the US-Israel tech corridor is an explicit focus) 5.

Founder profile: Scheinman targets experienced founders over 35, technical founders with sales capability, and those who can articulate a clear 12-month path to paying pilot customers 135. He later expanded to also target female founders as the experienced-founder niche became crowded 1.

Co-investor patterns: His investment in Zoom connected him to Qualcomm Ventures and Jerry Yang’s AME Cloud Ventures 7. He is affiliated with Pear VC’s network for deal flow 5.

Post-investment style: Scheinman functions as an operational co-pilot — providing GTM architecture, talent connections through his Cisco network, board-level accountability, and introductions to tier-one funds (Accel, Lightspeed, Sequoia) 5.

Performance: Seven IPO unicorns from ~87 investments, including Zoom, SentinelOne, Arista Networks, and Rubrik 5. He has been involved in over $50 billion of value creation 3.

Note: Only 20 of ~87 claimed investments could be independently verified. Percentages above may not represent the full portfolio.

Portfolio

Company Year Stage Sector Status Source
Zoom 2011 Seed (first check) Video communications Active (IPO 2019) 136
Arista Networks 2011 Early Cloud networking Active (IPO 2014) 24
Greenwave Systems 2011 Board member IoT Exited 2018 4
eshare.net 2012 Angel Enterprise Active 4
Tango.me ~2012 Angel Video messaging Active 2
Think Big Analytics 2012 Board member Data analytics Exited 2014 4
Treasure Data 2012 Angel Data infrastructure Acquired 2018 24
Tomfoolery 2012 Angel Consumer Acquired by Yahoo 2014 24
SentinelOne 2013 Seed (first check) Cybersecurity Active (IPO 2021) 274
Pirc 2013 Angel Enterprise Exited 2016 4
Kodiak Data 2014 Angel Data storage Exited 2018 4
Avni 2014 Angel Enterprise Exited 2016 4
Imubit 2016 Angel Industrial AI Active 24
Testim.io 2016 Angel Test automation Active 24
Opas AI 2017 Angel AI Exited 2019 4
CyCognito 2018 Angel + Board Cybersecurity Active 24
Altostra 2019 Angel + Director Cloud infrastructure Active 4
Spekit 2019 Seed Sales enablement Active 74
Ariksa 2020 Angel Cloud security Active 4
IrisAgent 2020 Angel AI customer support Active 4

This table represents approximately 23% of ~87 claimed investments.

In Their Own Words

On finding great companies: “If you really want to do well as an angel investor, you have to find disruptive companies that the herd isn’t betting on” 7.

On recognizing greatness: “When I have that feeling of being surrounded by greatness, that’s the single biggest signal. Because great people will figure things out” 7.

On investing in Zoom: Scheinman wrote the first check to Eric Yuan before even hearing his pitch, based on their years working together at Cisco. He later said he regretted not investing double the amount, recognizing Yuan as a rare technical founder with sales capability 13.

On risk management: “As an investor, my biggest risk is missing out on the next Zoom — there is no risk greater than missing a good company” 3.

On enterprise transformation: “We’re in one of those periods where we’re about to see massive change in how things get done” 7.

On what makes great founders: “The things that matter most for the early investor are the founder and the go-to-market strategy” 1.

What Founders Say

Spekit CEO Melanie Fellay stated upon Scheinman joining Spekit’s board: “We’re thrilled to welcome Dan Scheinman to the Spekit board. He’s had a front row seat and played an integral role in the development of transformational technologies” 7.

During Scheinman’s reference checks before investing in Zoom, colleagues described Eric Yuan with statements like “He’s the greatest person I’ve ever worked for, the greatest technical business mind ever” — which Scheinman has cited as a key signal in his decision to invest 7.

Note: No additional independently sourced founder testimonials from other portfolio companies were found.

Sources


  1. Duke University School of Law, “Meet Dan Scheinman ‘87, the first investor in Zoom,” accessed March 2026. https://law.duke.edu/news/meet-dan-scheinman-87-first-investor-zoom

  2. Crunchbase, “Dan Scheinman - Founder @ Scheinman Angel Fund,” accessed March 2026. https://www.crunchbase.com/person/dan-scheinman

  3. Something Ventured podcast, “#116 Dan Scheinman: Zoom’s First Investor on Finding Outliers, Ageism and More,” accessed March 2026. https://somethingventured.us/116-dan-scheinman-zooms-first-investor-on-finding-outliers-ageism-and-more/

  4. Signal by NFX, “Dan Scheinman’s Investing Profile,” accessed March 2026. https://signal.nfx.com/investors/dan-scheinman

  5. xRaise.ai, “Dan Scheinman: Zoom-Sized Wins for Your B2B Startup,” accessed March 2026. https://xraise.ai/blog/angel-investor-dan-scheinman/

  6. Zoom Communications investor relations, “Dan Scheinman | Board Member,” accessed March 2026. https://investors.zoom.us/board-member/dan-scheinman

  7. Spekit, “Spekit welcomes Dan Scheinman, first investor in Zoom and SentinelOne, as board member,” November 2021, accessed March 2026. https://www.spekit.com/blog/spekit-welcomes-dan-scheinman-first-investor-in-zoom-and-sentinelone-as-board-member

  8. Silicon Valley Insider, “Dan Scheinman, Startup Survival Advice from Zoom’s First Investor,” accessed March 2026. https://www.svin.biz/dan-scheinman