Thumb Investors

16 investors on Angel Roster list Thumb in their portfolio. Most are angel investors and venture capital firms, the most common stage is Seed and the largest groups are based in the United States.

Investors are matched on the company name in their portfolio, so companies that share the name Thumb can appear together.

Investors listed
16
With verified email
81%
Most common stage
Seed
Top location
United States

Updated October 13, 2026 · How we compile this data

Top 16 Thumb investors

The most complete profiles first. Showing 16 of 16.

  • Bill BryantVerified

    Angel/Individual, Investment Partner · United States

    SeedTelecommunicationsE-commerceEnterprise SoftwareDigital Media

    Portfolio: Isilon, Winshuttle, Alpental, Minfo and 17 more

    Verified email available

  • BlueRun VenturesVerified

    Venture Capital, Private Equity Firm, Angel/Individual · United States

    Series AE-commerceEnterprise SoftwareInformation Technology (IT)Mobile

    Portfolio: Kabbage, Waze, Ypulse, Appcentral and 21 more

    Verified email available

  • Hadley HarrisVerified

    Venture Capital, Founder, Angel/Individual · United States

    SeedPre-SeedEnterprise SoftwareArtificial Intelligence (AI)MobileConsumer Internet

    Portfolio: Shake, Shine, Fleksy Inc. (Closed), READY Robotics and 68 more

    Verified email available

  • Jeff TannenbaumVerified

    Venture Capital, Angel/Individual, CEO · United States

    SeedSeries AAdvertisingHealth CareTelecommunicationsCloud Gaming

    Portfolio: Kabbage, Waze, uMake, Jackpocket and 18 more

    Verified email available

  • Joe MedvedVerified

    Venture Capital, Micro VC, Investor · United States

    SeedAdvertisingHealth CareE-commerceWomen Founded

    Portfolio: GameGround, RebelMouse, True Co, Taykey and 24 more

    Verified email available

  • Jonah GoodhartVerified

    Venture Capital, Angel/Individual, Investor · United States

    SeedPre-SeedAdvertisingEnterprise SoftwareConsumer Internet

    Portfolio: Namely, AdRoll Group, Moat, Gazemetrix and 16 more

    Verified email available

  • Nikhil KalghatgiVerified

    Venture Capital, Angel/Individual · United States

    SeedSeries AE-commerceSportsDigital MediaDesign

    Portfolio: Techstars, Cambrian Genomics, Ginkgo Bioworks, Moat and 28 more

    Verified email available

  • Nitesh BantaVerified

    Design Operator, Founder, Angel/Individual · United States

    SeedHealth CareWearablesE-commerceAccounting

    Portfolio: Duo Security, Vitrue, Flatfile, CoachUp and 49 more

    Verified email available

  • Timothy YoungVerified

    Venture Capital, Entrepreneurship Program, Private Equity Firm · United States

    Early Stage VentureHealth CareData IntegrationHospitalsComputer Vision

    Portfolio: Shake, Fondu, IMRSV, Simperium and 43 more

    Verified email available

  • Vic SinghVerified

    Venture Capital, Entrepreneurship Program, Founder · United States

    SeedPre-SeedEarly Stage VentureHealth CareData IntegrationHospitalsComputer Vision

    Portfolio: PHHHOTO, IMRSV, Tap to Learn, Reactor Labs and 48 more

    Verified email available

  • Karl JacobVerified

    Angel/Individual · United States

    AdvertisingE-commerceEnterprise SoftwareInformation Technology (IT)

    Portfolio: Flotype, Hangtime, June, Boostable and 53 more

    Verified email available

  • Jay JamisonVerified

    Angel/Individual, Investment Partner, Investor · United States

    SeedWestern US-based Startups

    Portfolio: Appurify, Thumb, Foodspotting, Fathom Video and 3 more

    Verified email available

  • Nihal Mehta

    Venture Capital, Angel/Individual, Investment Partner · United States

    SeedPre-SeedEarly Stage VentureAdvertisingHealth CareData IntegrationComics

    Portfolio: Up All Night, Shake, Squad, Fondu and 102 more

    Contact details available

  • Mark Wachen

    Angel/Individual, Investment Partner · United States

    SeedAdvertisingNews MediaInformation Technology (IT)Mobile

    Portfolio: PuzzleSocial, SeatGeek, Optify, Stella Connect and 4 more

    Contact details available

  • Christian BrucculeriVerified

    Angel/Individual · United States

    AdvertisingEnterprise SoftwareMarketplaceMobile

    Portfolio: CrowdTwist, YouCast, Thumb

    Verified email available

  • Vince Monical

    Angel/Individual, Investor

    SeedHealth CareArtificial Intelligence (AI)Health DiagnosticsMedical

    Portfolio: Caption Health, Fivestars, Thumb

    Contact details available

By investment stage

By location

Related industries

Most-backed portfolio companies

Frequently asked questions

How many Thumb investors are on Angel Roster?

Angel Roster lists 16 Thumb investors. 13 of them (81%) include a verified email address.

What types of investors are they?

The most common investor types are Angel Investors (13), Venture Capital Firms (9) and Investment Partner Investors (5). An investor can have more than one type, for example an angel who is also a venture partner.

Which stages do Thumb investors invest in?

Among those that list a stage, the most common are Seed (12), Pre-Seed (4) and Series A (3).

Where are Thumb investors based?

Most are based in the United States (15).

Which companies have Thumb investors backed?

The most-backed portfolio companies among them are Onswipe (4), Tempo AI (4), IMRSV (4), Simperium (4) and Vistar Media (4).

How do I contact Thumb investors?

Create a free Angel Roster account to search and filter all 16, then unlock verified emails and LinkedIn profiles on a paid plan. Every plan starts with a 3-day free trial.