Fundraising Fox

Underdog Labs

Venture capitalActively deploying

San Francisco · Pre-Seed–Seed · 5 people tracked

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Investment thesis

Pre-seed, pre-product investors offering boutique accelerator-style support from two partners with a 25-year co-founding relationship and an Expedia exit, sourcing via trusted referrals and favoring belief-driven founders over traction.

Source: firm website, verified Aug 7, 2026.

Stage
Pre-Seed–Seed
Check
$5K – $500K
HQ
San Francisco, CA, US
Leads rounds
Leads
Instruments
Equity
Last 12 months
1 investment
Tracked investments
2

Team · 5 people

from the firm's website & public directories

What they invest in

from 2 of 2 portfolio companies

AI & Machine Learning ×2Digital Health ×2Healthtech ×2

HQs:United States×1

Investments · 2 tracked

founders shown can be your intro path
Arbital Healtharbitalhealth.comin𝕏

Arbital Health provides a platform for managing value-based care (VBC) contracts, unifying claims, utilization, benchmark, and contract data with actuarial tools, predictive models, and a conversational "Actuarial AI" for real-time performance monitoring and risk analysis.

AI & Machine LearningDigital HealthHealthtechSan Francisco, US

Brian Overstreet(Co-founder)inTravis May(Co-founder)in

BoardScott Rosen(Director)inIan Duncan(Director)

Co-investorsHealthy VenturesTRANSFORMATION CAPITALFlex Capital Partners

Keebler Healthkeebler.healthApr 2026 · $16M

Keebler Health, founded in 2023, is a healthcare company focused on improving efficiency and efficacy in the healthcare industry.

AI & Machine LearningDigital HealthHealthtech

Isaac Park(CEO)Andrew Stickney(COO)Kevin Hill(CTO)Terrell Bacchus(CMO)

Co-investorsFlare Capital PartnersHypothesisNew Stack VenturesPrimordial VenturesTau VenturesEverywhere Ventures+7 more

Portfolio news

latest coverage across their companies

Frequently asked questions

What stage does Underdog Labs invest at?
Underdog Labs invests at the Pre-Seed, Seed stages.
What is Underdog Labs's typical check size?
Underdog Labs typically writes checks of $5K – $500K.
What sectors does Underdog Labs focus on?
Underdog Labs focuses on AI & Machine Learning, Consumer, Enterprise Software, Healthtech, SaaS.
Where is Underdog Labs located?
Underdog Labs is headquartered in San Francisco, US.
Does Underdog Labs lead rounds?
Yes, Underdog Labs leads investment rounds.

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