Stephen Renfro works as a Partner & COO at Optum Ventures. The firm's known portfolio counts 10 companies.
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Investment focus
- Sector
- AIHealthcareSaaS
- Focus
- APIAnalyticsChildrenDataDiagnosticsDigital HealthFitnessHealthcare OperationsHome Recovery CareInsurTechMedTechPersonal HealthPharmacy InfrastructureTelemedicineTherapeuticsWellness
Contacts
Affiliated funds' portfolios
Partner & COO at Optum Ventures, whose known portfolio counts 10 companies
- Indigo
- Greater Good Health
- Chamber Cardio
- Gyde
- Ambience Healthcare
- Reema Health
- Amigo AI
- RISA Labs
- Imagine Pediatrics
- CoPlane
Investor Profile
Stephen Renfro is listed against sectors AI, Healthcare and SaaS, and focus areas API, Analytics, Children and Data in the database.
Stage-wise, the deals at Optum Ventures cluster around Growth, Seed and Series A rounds.
The firm portfolio and the focus above give founders context on whether Stephen Renfro matches their raise.
Colleagues at Optum Ventures
John Simon
Advisor
Boston, United States
Mike Cunningham
Partner
Boston, United States
Nicole Chen
Principal and Chief of Staff
Boston, United States
Austin Martin
Vice President
Boston, United States
Jon Sklaroff
Principal
New York, United States
Mazen Hammad
Vice President
Boston, United States
George T. Pantazopoulos
Partner
Boston, United States
Thomas Capon
Principal
United Kingdom
Joe G.
Vice President
Boston, United States
Frequently asked questions
Who is Stephen Renfro?
Stephen Renfro is a corporate venture investor and venture capital investor based in Boston, Massachusetts, United States, listed as Partner & COO at Optum Ventures. The known portfolio of that firm counts 10 companies. That portfolio belongs to the firm, not to Stephen Renfro personally.
What does Stephen Renfro invest in?
Listed sectors include AI, Healthcare and SaaS; listed focus areas include API, Analytics, Children and Data. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Stephen Renfro invest at?
Optum Ventures appears in Growth, Seed and Series A rounds across its known deals, and Stephen Renfro is listed there as Partner & COO. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Stephen Renfro listed at?
Stephen Renfro is listed as Partner & COO at Optum Ventures. 9 other people in the database share a firm with Stephen Renfro.
How do I contact Stephen Renfro?
An email address, a phone number and a LinkedIn page are on file for Stephen Renfro. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal