Union is a venture capital firm. Team members are concentrated in San Francisco, California, United States. Among the 13 companies in the known portfolio are Butlr, Derapi, SirenOpt, Urban Sky, Foundation EGI and Pico MES.
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Investment focus
- Focus
- AI ApplicationsAI InfrastructureAerospaceAnalyticsCloud InfrastructureComputer VisionDataDefense ManufacturingDeveloper ToolsEdTechEnterprise SaaSFitnessFood & BeverageFoundation ModelsGeospatialGreenTechIndustrialIndustrial AutomationInformation ServicesIoTMedTechReal TimeRoboticsSecuritySemiconductorsSensorsSmart FactoriesSupply Chain ManagementVertical SaaSWellness
Contacts
Who to pitch at Union
Union portfolio companies (13)
- Butlr
- Derapi
- SirenOpt
- Urban Sky
- Foundation EGI
- Pico MES
- Raise Robotics
- Enmotech
- MEDP.AI
- Med Lighter
- NowCoder
- WalkTech
- Clianmeng
Co-investors
Funds that share portfolio companies with Union.
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About Union
The firm's listing covers sectors AI, Climate, Education and FinTech, and focus areas AI Applications, AI Infrastructure, Aerospace and Analytics; known deals cluster at Pre-Seed, Seed and Series A.
Of the 3 people on file at Union, Chris Kim (Co-founder and Managing Partner) and Nate Williams (Founder & Managing Partner) are listed as the contacts to approach first.
Union shares portfolio companies with 20 other investment firms, among them UNION CAPITAL, Zacua Ventures and GRIDS Capital.
Frequently asked questions
What is Union?
Union is a venture capital firm whose team is concentrated in San Francisco, California, United States, with a known portfolio of 13 companies. The portfolio comes from public investment records rather than from the firm, so deals that never surfaced publicly are not in it.
What does Union invest in?
Listed sectors include AI, Climate, Education and FinTech; listed focus areas include AI Applications, AI Infrastructure, Aerospace and Analytics. Those tags come from the portfolio attached to the firm, so they describe what has been backed rather than a stated mandate for what comes next.
What stage does Union invest at?
The known deals of Union include Pre-Seed, Seed and Series A rounds. Check that against your own round before reaching out: stage mismatch is the most common reason a well matched sector still goes nowhere.
Who should I pitch at Union?
2 of the 3 people on file at Union are listed as contacts for the firm. All 3 have their own profile page.
How do I contact Union?
Any email address on file for the firm is masked on this page and readable inside RaiseHunt after you create an account. The 3 people attached to the firm have their own pages, each showing whether an address is on file for them.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal