Calm Ventures Research
Investment Thesis
Calm Ventures is a Los Angeles-based venture syndicate founded in 2020 by solo General Partner Zachary Ginsburg. The firm's stated mission is "to help builders create disruptive companies," and it operates by pairing capital with a large, active network of value-add operators, founders, and executives rather than a traditional multi-partner investment team. Ginsburg previously invested at OCV Partners (an affiliate of CIM Group, a firm with $31B+ AUM) and San Francisco-based Viant Capital, and remains a Venture Partner at Gaingels and Stateless Ventures. He also co-founded the widely read "Last Money In" newsletter, which functions as an informal thesis and deal-flow channel for the fund. The firm's public description emphasizes accelerating portfolio companies' time-to-market, forging strategic partnerships, and amplifying global impact through its network rather than through board-level involvement.
Sector Focus
Calm Ventures is a broad, technology-agnostic generalist investor rather than a sector specialist. Its 500+ investment portfolio spans artificial intelligence and AI infrastructure (1up.ai, AirOps, Weights & Biases), aerospace and defense (SpaceX, Impulse Space, Stoke Space, Spaceium, Shield AI, Epirus), robotics (Bear Flag Robotics, Agility Robotics, Figure), fintech (Brex, Flutterwave, AltoIRA, Alternativ Wealth, Yotta Savings), web3/crypto (3Box, Andrena, Celestia), healthcare (Allara Health, Alloy Tx, Alto), deep tech and semiconductors (d-Matrix, Aether Bio), consumer (Abode, Amori, Olipop), and B2B software/adtech (AdQuick, Airmeet, Aikito). This breadth reflects the syndicate model: Calm Ventures follows deal flow surfaced by its LP network and Ginsburg's personal angel activity (he has personally backed 400+ startups over the past decade) rather than filtering to a narrow thesis.
Stage Focus
The firm's public materials describe seed-stage entry with the capacity to participate in follow-on and later rounds as portfolio companies mature (multiple portfolio companies, including SpaceX, Anthropic, and Shield AI, have since raised well past Series A). The bulk of new checks land at Seed and Series A.
Check Size
Exact check sizes are not disclosed publicly. Given the syndicate structure and Ginsburg's history of high-volume angel investing (400+ personal investments, 500+ fund investments since 2020), individual checks are likely small relative to headline round sizes, aggregated with the ~6,000-member LP syndicate network to reach meaningful allocations.
Lead Tendency
Calm Ventures typically participates in syndicated rounds led by larger institutional investors rather than leading itself. For example, the firm's January 2025 investment in Spaceium's $6.3M seed round was led by Initialized Capital, with Calm Ventures as one of 15+ participating investors.
Recent Activity
Deal velocity has slowed materially from the fund's early years: after averaging roughly 2 new investments per year over the last five years, Calm Ventures made approximately 4 new investments in 2025 and 2 in the first several months of 2026. The most recent verifiable investment is the Spaceium seed round (January 2025), where the firm joined a syndicate alongside Zeno Ventures, Olive Tree Capital, DTX Ventures, and others behind a Los Angeles-based in-orbit refueling startup.
Portfolio Highlights
The portfolio includes 26 unicorns, 4 IPOs, and 20 acquisitions. Marquee names include Anthropic, SpaceX, Databricks, Shield AI, Brex, Flutterwave, Figure, and Jackpocket (acquired by DraftKings for $750M). Weights & Biases (AI developer tooling) and Olipop (which surpassed $250M in sales) are also notable portfolio wins highlighted on the firm's own news page. The firm frequently co-invests alongside top-tier venture firms, syndicating 20+ times with both Andreessen Horowitz and Founders Fund, and 20+ times with 8VC.
Team
- Zachary Ginsburg — Founder & General Partner. Former investor at OCV Partners (CIM Group affiliate, $31B+ AUM) and Viant Capital (San Francisco). USC graduate with Columbia Business School coursework. Concurrently a Venture Partner at Gaingels and Stateless Ventures, and co-founder of the "Last Money In" newsletter. Sole named decision-maker for the fund; Calm Ventures has no other publicly listed investment team members.
Decision Process
Solo GP model — Ginsburg is the fund's sole named partner and decision-maker, though the ~6,000-member syndicate network of founders, operators, and specialists informs deal sourcing and diligence.
Founder Preferences
Public materials do not articulate an explicit founder archetype; the firm's broad sector spread and syndicate-following posture suggest it prioritizes access to strong deal flow (via its network and co-investor relationships) over a narrow founder profile.
Geographic Focus
Headquartered in Los Angeles, CA. Portfolio is majority US-based but includes international companies such as Flutterwave (Africa-focused fintech), reflecting a global reach enabled by its LP syndicate network rather than a formal international mandate.