Antiportfolio Ventures Research
Investment Thesis
Antiportfolio Ventures is an early-stage venture fund backing founders in regulated markets: healthcare, fintech, compliance and legal tech. The firm's tagline is that the hardest markets are the biggest opportunities. Its pitch is that its partners combine venture investing, elite M&A law and legal-tech investing experience in a way few other funds can. Third-party profiles (OpenVC, ConnectSafely) describe it as an early-stage LegalTech fund investing from idea stage through Series B, and one partner describes investing as a generalist with a preference for regulated spaces such as law, fintech, insurance and compliance. The firm's own site lists the fund as Fund I and is restricted to qualified investors.
Stage Focus
The firm targets early-stage companies, from idea or pre-seed through seed, with some profiles saying up to Series B. Seed is the core stage per aggregator data. The firm's own site does not state a stage; this comes from third-party profiles and carries moderate confidence.
Check Size
Third-party profiles (OpenVC, ConnectSafely) report cheques of roughly $200K to $2M. The firm's website does not publish a check size, so this is unverified against a primary source.
Lead Tendency
Not established. OpenVC describes the fund as the most active early-stage LegalTech fund, but no primary-source evidence shows whether it leads or follows. A 2026 seed round announcement for Twin1 lists the partners among participating investors, which suggests participation in syndicates. Lead tendency is marked unknown.
Recent Activity
The firm appears newly formed in 2026. A July 2026 Wall Street Journal profile covers David Fox, who co-founded a legal-tech company powering an AI-based law firm, and a LinkedIn post from Mike Devlin welcomes Fox to work alongside him and Ryan Morgan at Antiportfolio Ventures. The partners are named as investors in the Twin1 seed round announced in 2026. The fund is described on its site as Fund I, so it is presumably actively deploying, though fund size has not been published.
Portfolio Highlights
The firm's site does not list a portfolio page. Selected investments come from partner bios and aggregator profiles and may reflect partners' prior or personal investments rather than Fund I positions: Legora, Patlytics, Sandstone AI, Public Interest Company, Darrow, Steno, Olin AI, Justpoint, Draftwise, Athennian, LinkSquares, plus exits Casetext and TextIQ (Mike Devlin's earlier fund). Casetext was acquired by Thomson Reuters.
Team
- Ryan Morgan, Partner: Former Partner at Crossbeam VC, previously at DFJ Growth and on the M&A and VC team at Booking Holdings. One of the most active VCs in legal and regulatory opportunities.
- David Fox, Partner: Former Senior Partner at Kirkland & Ellis and member of its Global Executive Management Committee, led the New York office and its deal and M&A practice. Previously Senior Partner at Skadden Arps. Portfolio in 50+ companies.
- Mike Devlin, Partner: Pioneered one of the first funds with this strategy in 2018 and has spent nearly a decade investing in regulated and legal-tech spaces. Previously at Sixpoint Partners and Citibank in private equity and investment banking.
- Roland Vogl, Partner: Executive Director of the Stanford Program in Law, Science & Technology and co-founder of CodeX, the Stanford Center for Legal Informatics.
Extended network and advisors include Joe Borstein (B+B, formerly Pangea3 / Thomson Reuters). The LP and firm network includes DLA Piper, Kirkland & Ellis, Quinn Emanuel, Skadden, Paul Weiss, Cooley and Orrick.
Decision Process
Four-partner partnership. No published detail on committee structure or timeline.
Founder Preferences
Founders building in regulated markets where domain expertise and legal and regulatory networks help with go-to-market and navigating compliance. The firm emphasizes a hands-on partnership drawing on its law-firm LP network for customer introductions and credibility. Typical AI-native legal workflow, IP, litigation and compliance companies fit the portfolio pattern.
Geographic Focus
United States. ConnectSafely lists the firm as based in San Francisco, California; this is from a third-party profile and not confirmed on the firm site.
Gaps
No fund size, AUM, portfolio page, or primary-source check size or stage. Portfolio companies are drawn from partner bios and aggregators, so which are Fund I investments is unverified.