Xandex Ventures
Venture capitalPetaluma · Seed–Series A · 2 people tracked
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Investment thesis
Xandex Ventures is the investment division of Xandex Inc., operating as an LLC since 2007 that invests in seed and early-stage companies in the San Francisco Bay Area.
Source: firm website, verified Aug 7, 2026.
Team · 2 people
from public directoriesWhat they invest in
from 8 of 13 portfolio companiesFintech ×3Enterprise Software ×2Biotech ×1Cleantech ×1Climate Tech ×1Cloud Computing ×1Cybersecurity ×1Deep Tech ×1
HQs:United States×9
Investments · 13 tracked
founders shown can be your intro pathAngel Capital Association is a professional membership organization for angel investors that provides information, data, and networking resources to facilitate investment connections between angels and early-stage entrepreneurs.
Sector Agnostic
Co-investorsBeacon AngelsGolden SeedsJumpStart New Jersey Angel Network
The Berkeley Angel Network is an angel investor group made up of UC Berkeley alumni, faculty, and former faculty, operating as an affinity group of the Berkeley Haas Alumni Network.
Berkeley, US
GeoTrust provides TLS/SSL certificates for securing websites, servers, and digital environments.
Cloud ComputingCybersecurityEnterprise Software
Co-investorsCastile VenturesRally Ventures Management, Llc
The Harvard Business School Alumni Angels Association is an angel investing network and educational forum for Harvard alumni and other participants to research and invest in early-stage companies.
FintechSan Rafael, US
HealthTech Capital is an angel investment membership organization connecting entrepreneurs and investors in digital health, medical devices, pharmaceuticals, and healthcare services.
FintechHealthtechSilicon Valley, US
Anne DeGheest(Founder)in
Life Science Angels provides an investment fellowship program for graduate students, postdocs, and early-career professionals to gain experience in life science entrepreneurship and investing.
BiotechDeep TechSan Francisco, US
North Bay Angels is a non-profit organization for angel investors that facilitates connections between early-stage entrepreneurs and potential investor members through quarterly business meetings.
Sector AgnosticNorth Bay, US
Seraf is a portfolio management platform that tracks, reconciles, and reports on private market positions — including equity, SAFEs, convertibles, warrants, options, fund interests, and loans — across multiple entities like funds, SPVs, and family-office holdings.
Enterprise SoftwareFintechSaaS
The site is a personal finance blog publishing articles about budgeting, money management, and spending psychology for general consumers.
Media & Entertainment
The Builders Fund is an investment firm focused on financing and supporting entrepreneurs and portfolio companies addressing social and environmental challenges through authentic partnerships and a human-centered approach to capital deployment.
Climate TechImpact & Social GoodSector AgnosticSan Francisco, US
Tripp Baird(Founder & Managing Partner)inMike Dutton(Co-founder & Managing Partner)
Co-investorsGratitude Railroad
Xandex Inc. is a company whose products include SunMizer (Optimum I-V for PV, related to photovoltaic/solar) and DieMark, alongside a semiconductor-related division.
CleantechHardwareSemiconductorsPetaluma, US
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
Powerplantvc
Frequently asked questions
- How many investments has Xandex Ventures made?
- Xandex Ventures has 13 tracked investments.
- What stage does Xandex Ventures invest at?
- Xandex Ventures invests at the Seed, Series A stages.
- What sectors does Xandex Ventures focus on?
- Xandex Ventures focuses on Data & Infrastructure, Healthtech, Medical Devices.
- Where is Xandex Ventures located?
- Xandex Ventures is headquartered in Petaluma, US.
- Who does Xandex Ventures co-invest with?
- Xandex Ventures most often shares deals with Castile Ventures, Golden Seeds, Gratitude Railroad, among 6 tracked co-investors.
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