Brainstorm Ventures Research
Investment Thesis
Brainstorm Ventures describes itself as a small, generalist venture capital firm founded in 1999 by former exited founders. Its stated mission is partnering with exceptional founders to build extraordinary companies that change the world through technology. The firm says it has deep empathy for entrepreneurs, having been founders themselves, and claims top-decile returns across market cycles. It does not publish a narrow sector thesis; the portfolio shows a deliberately broad mix rather than a single vertical.
Stage Focus
The firm says it invests at the earliest stages. Its own testimonials describe it as an early institutional backer: Zappos' CEO called it one of the first early stage investors, OpenTable's founder said it invested early and took a board seat, and Turing's CEO said it participated in the first funding round. Later press profiles describe it as a seed and early-stage firm. Specific round-by-round stage data is not published on the site, so no stage is stored per company.
Check Size
No check size, fund size or ownership target is published on the firm's website. Check size is left empty rather than inferred.
Lead Tendency
The site does not say whether the firm leads. Testimonials point to a mix: board seats and hands-on help at OpenTable and KIO Networks, and participation in Turing's first round. Lead tendency is recorded as unknown.
Recent Activity
The portfolio page lists recent additions including AGD Labs (robot hand dexterity), Outcome (agentic decision intelligence), Shackleton AI (agentic OS for retail chain development), Anvil Robotics, BrainGrid, HiCap, Wavedash and Southbridge. Logo uploads on the portfolio page are dated 2025 and 2026, so the firm appears to still be investing. Fund status is recorded as unknown because no fund announcement was found. The portfolio page filters by Fund I through Fund IV, so the firm has raised at least four funds. A third-party profile says Fund II launched in 2018.
Portfolio Highlights
The page lists 65 companies. Exits it marks include Zappos (acquired by Amazon), OpenTable (IPO), Me.com (acquired by Apple), Knotel (acquired by Newmark), Lively (acquired by GreatCall), Swap (acquired by Clip), Forge (acquired by WorkJam), Class Companion (acquired by Panorama Education), Terrain Bio (acquired by Eclipsebio), Treatful (acquired by OpenTable), Uniscape (acquired by Trados), Lightt (acquired by Mitu) and KIO Networks (acquired by private investors, described by the firm as a billion dollar company). Newer notable holdings include Commonwealth Fusion Systems, Varda Space Industries, Turing and Anvil Robotics. Shut-down companies flagged on the page are Bedrock Materials and Peachy Pay.
Team
- Ariel Jadus, Managing Partner: about fifteen years as a venture capitalist and impact investor. Joined after the inaugural fund and has co-led all later funds and SPVs. Former Pacific Community Ventures investor, Bridgespan consultant and Intel employee. Wharton MBA, Kauffman Fellow.
- Eduardo Rallo, Cofounder and Managing Partner: investor, entrepreneur and restaurateur. Led early efforts in Mexico. Co-founded World Wrapps Restaurants and chairs Resmex Group. Harvard MBA.
Decision Process
Two managing partners run the firm, so decisions are most likely made by a small partnership. The site gives no formal process or timeline. Warm intros are not stated as required; the firm lists [email protected] as its contact.
Founder Preferences
The firm stresses founder empathy and its own founder background. Testimonials credit help with introductions, recruiting directors and investors, early consumer research and Latin America expansion. No stated founder profile beyond exceptional founders.
Geographic Focus
Roots in Silicon Valley and Mexico City, investing across North America. The portfolio has a visible Mexico and Latin America cluster: KIO Networks, Kolors, Finvero, Swap, Menta, OrkestaPay, Solara, Cafler. Headquarters: 1 Embarcadero Center, Suite 1200, San Francisco, CA 94111.