Mainframe Investors

33 investors on Angel Roster list Mainframe 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, Israel and the United Kingdom.

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

Investors listed
33
With verified email
55%
Most common stage
Seed
Top location
United States

Updated October 13, 2026 · How we compile this data

Top 33 Mainframe investors

The most complete profiles first. Showing 33 of 33.

  • Tim RuleVerified

    Venture Capital, Incubator, Accelerator · United Kingdom

    SeedDatabasesDeepTechInvestment ManagementCryptocurrency

    Portfolio: dopay, actionai, Billon, Quikkly and 23 more

    Verified email available

  • Adam KoopersmithVerified

    Venture Capital · United States

    Health CareDatabasesWellnessWomen Founded

    Portfolio: IntroFly, Active Network, Lefthand Networks, Zinch and 42 more

    Verified email available

  • Adam PlotkinVerified

    Venture Capital, Micro VC · United States

    CybersecuritySportsComputer VisionWomen Founded

    Portfolio: GreatHorn, New Age Meats, Greycork, Skip and 61 more

    Verified email available

  • Kevin DickVerified

    Venture Capital, Private Equity Firm, Micro VC · United States

    Health CareWearablesE-commerceCybersecurity

    Portfolio: Appsembler, Conspire, VETTED, Cloudsnap and 31 more

    Verified email available

  • Marc LesnickVerified

    Venture Capital, Private Equity Firm, Micro VC · Israel

    CybersecuritySportsComputer VisionWomen Founded

    Portfolio: GreatHorn, New Age Meats, Greycork, Skip and 61 more

    Verified email available

  • Oliver MitchellVerified

    Venture Capital, Private Equity Firm, Micro VC · United States

    CybersecuritySportsComputer VisionWomen Founded

    Portfolio: GreatHorn, New Age Meats, Greycork, Skip and 61 more

    Verified email available

  • Richard GinsbergVerified

    Angel/Individual, Finance Operator · United States

    Health CareTelecommunicationsE-commerceEnterprise Software

    Portfolio: hiku, Vouch Financial, Sproutling Acquired by Mattel, Kinsa and 40 more

    Verified email available

  • Rob KniazVerified

    Angel/Individual · United Kingdom

    Health CareE-commerceLifestyle ProductsEducation

    Portfolio: LLUSTRE, IMMUNIO, Babylon Health, Deliveroo and 6 more

    Verified email available

  • Shreyas DoshiVerified

    Venture Capital, Angel/Individual · United States

    Health CareE-commerceEnterprise SoftwareMarketplace

    Portfolio: Rachio, Vouch Financial, Notion, Kinsa and 63 more

    Verified email available

  • Ting LouieVerified

    Angel/Individual · United States

    Autonomous VehiclesE-commerceEnterprise SoftwareEnergy

    Portfolio: Globalstar, Studio Design, Vyv, Facebook and 12 more

    Verified email available

  • Yochai HacohenVerified

    Venture Capital, Private Equity Firm, Micro VC · Israel

    CybersecuritySportsComputer VisionWomen Founded

    Portfolio: GreatHorn, New Age Meats, Greycork, Skip and 61 more

    Verified email available

  • Yuval CohenVerified

    Venture Capital, Private Equity Firm, Micro VC · Israel

    CybersecuritySportsComputer VisionWomen Founded

    Portfolio: GreatHorn, New Age Meats, Greycork, Skip and 61 more

    Verified email available

  • Conor Webb

    Venture Capital, Private Equity Firm, Micro VC · United States

    SeedCybersecuritySportsComputer VisionWomen Founded

    Portfolio: GreatHorn, New Age Meats, Greycork, Skip and 61 more

    Contact details available

  • Evan Cheng

    Angel/Individual, Investor · United States

    SeedCybersecurityCryptocurrencyInformation Technology (IT)Software

    Portfolio: Mattermost, Mainframe, Shelfbucks, PARSIQ and 11 more

    Contact details available

  • Gavin Christensen

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

    SeedHealth CareData IntegrationTelecommunicationsE-commerce

    Portfolio: Vutara, Zenprint, Jsk Therapeutics, Grow and 35 more

    Contact details available

  • Igor Shoifot

    Venture Capital, Angel/Individual, CEO · United States

    SeedPre-SeedAdvertisingE-commerceDigital MediaLoyalty Programs

    Portfolio: APPrise Mobile, Hotlist, remot3it, Whale Path and 21 more

    Contact details available

  • Josh Hannah

    Venture Capital, Angel/Individual, Investor · United States

    Series AHealth CareE-commerceAccountingCybersecurity

    Portfolio: Chai, SkyKick, Covestor, Lever and 80 more

    Contact details available

  • Kai Gradert

    Venture Capital, Angel/Individual · United States

    SeedPre-SeedCryptocurrencyMarketplaceMobileVirtual Reality

    Portfolio: MD Insider, AngelList Consumer Fund I, RadPad, Postmates and 17 more

    Contact details available

  • John SuttonVerified

    Angel/Individual · United States

    AdvertisingHealth CareE-commerceEnterprise Software

    Portfolio: Sproutling Acquired by Mattel, Eaze, PillPack, Iterable and 4 more

    Verified email available

  • Duncan Jennings

    Angel/Individual · United Kingdom

    AdvertisingE-commerceEnterprise SoftwareAnalytics

    Portfolio: SuperCarers, Thread, Picfair, Skift and 11 more

    Contact details available

  • Itamar Ophel

    Venture Capital, Micro VC · Israel

    CybersecuritySportsComputer VisionWomen Founded

    Portfolio: GreatHorn, New Age Meats, Greycork, Skip and 61 more

    Contact details available

  • LaLa Wang

    Angel/Individual · United States

    Health CareEnterprise SoftwareMobileLegal Tech

    Portfolio: RentHop, Equidate, Inmoji, Iterable and 6 more

    Contact details available

  • Lance McCollough

    Angel/Individual · United States

    Health CareE-commerceEnterprise SoftwareSmall and Medium Businesses

    Portfolio: Patter, Worklife, Contactually, Teachable and 40 more

    Contact details available

  • Tak Lo

    Angel/Individual · United Kingdom

    Consumer Internet

    Portfolio: Moni, Marax AI, Rocco, Clickful and 6 more

    Contact details available

  • Uri Zahavi

    Venture Capital, Private Equity Firm, Micro VC · Israel

    CybersecuritySportsComputer VisionWomen Founded

    Portfolio: GreatHorn, New Age Meats, Greycork, Skip and 61 more

    Contact details available

  • Yoav Hineman

    Venture Capital, Private Equity Firm, Micro VC · Israel

    CybersecuritySportsComputer VisionWomen Founded

    Portfolio: GreatHorn, New Age Meats, Greycork, Skip and 61 more

    Contact details available

  • Dan PetersonVerified

    Angel/Individual · United States

    EmailEducationElectronic Health Records (EHR)Productivity Software

    Portfolio: Wranggle, Pantheon, GroupAhead, Mainframe and 2 more

    Verified email available

  • Jeffrey LongVerified

    Angel/Individual · Canada

    FranchiseE-commercePaymentsEnterprise Software

    Portfolio: HUMAN Healthy Vending, 7Eleven, Cotopaxi, David Gabriel Furniture and Design and 2 more

    Verified email available

  • Todd CroslandVerified

    Angel/Individual · United States

    Health CareEnterprise SoftwareMobileClean Technology

    Portfolio: Studio Design, Mainframe, DemoChimp, Shred Video and 2 more

    Verified email available

  • Hugo Gonçalves Pereira

    Angel/Individual · Portugal

    Health CareEnterprise SoftwareMobileClean Technology

    Portfolio: Faber Ventures, 360i, Uniplaces, Zaask and 4 more

    Contact details available

  • Philipp BeerVerified

    Angel/Individual · United Kingdom

    Health CareEnterprise SoftwareCryptocurrencyMobile

    Portfolio: Zilliqa, Soar Wellbeing, Grove, nCent Labs and 1 more

    Verified email available

  • Alicia NavarroVerified

    Angel/Individual · United States

    Health CareEnterprise SoftwareMobileConsumer Internet

    Portfolio: Ometria, Mainframe, Mitoo

    Verified email available

  • Aurelie Guerrieri

    Angel/Individual · United States

    Health CarePaymentsEnterprise SoftwareEmail Marketing

    Portfolio: Undrip, Altius Education, Quinstreet, Twylah and 2 more

    Contact details available

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Related industries

Most-backed portfolio companies

Frequently asked questions

How many Mainframe investors are on Angel Roster?

Angel Roster lists 33 Mainframe investors. 18 of them (55%) include a verified email address.

What types of investors are they?

The most common investor types are Angel Investors (22), Venture Capital Firms (17) and Private Equity Firms (10). An investor can have more than one type, for example an angel who is also a venture partner.

Which stages do Mainframe investors invest in?

Among those that list a stage, the most common are Seed (6), Pre-Seed (2) and Series A (1).

Where are Mainframe investors based?

Most are based in the United States (20), Israel (6) and the United Kingdom (5).

Which companies have Mainframe investors backed?

The most-backed portfolio companies among them are Rinse (11), Distil Networks (10), Dashbot (9), DocAuthority (9) and Estify (9).

How do I contact Mainframe investors?

Create a free Angel Roster account to search and filter all 33, then unlock verified emails and LinkedIn profiles on a paid plan. Every plan starts with a 3-day free trial.