ZEFR Investors

15 investors on Angel Roster list ZEFR in their portfolio. Most are venture capital firms and angel investors, the most common stage is Series A 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 ZEFR can appear together.

Investors listed
15
With verified email
60%
Most common stage
Series A
Top location
United States

Updated October 13, 2026 · How we compile this data

Top 15 ZEFR investors

The most complete profiles first. Showing 15 of 15.

  • Aydin SenkutVerified

    Venture Capital, Founder, Private Equity Firm · United States

    SeedEarly Stage VentureSeries AHealth CareE-commercePaymentsEnterprise Software

    Portfolio: Notion, Wildfire, Scaled Inference, SoundHound Inc. and 60 more

    Verified email available

  • Bret MaxwellVerified

    Venture Capital, Private Equity Firm, Investor · United States

    Series AHealth CareE-commerceDatabasesWomen Founded

    Portfolio: Machinima, Buzz Media, TopSchool, Clear Software and 39 more

    Verified email available

  • Gordon RubensteinVerified

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

    SeedSeries AMessagingInfrastructureNetwork HardwareConsumer Internet

    Portfolio: Machinima, Within (VR/AR), Globality, Amuse and 18 more

    Verified email available

  • Charles HudsonVerified

    Micro VC · United States

    AdvertisingHealth CareWearablesE-commerce

    Portfolio: Medinas Health, Top Hat, True Co, Soldsie and 53 more

    Contact details available

  • John HadlVerified

    Angel/Individual · United States

    AdvertisingAnalyticsMobileConsumer Internet

    Portfolio: Freemonee, Serious Materials, Jumptap, Savingscom and 16 more

    Verified email available

  • Jon RootVerified

    Venture Capital · United States

    Health CareCybersecurityWomen FoundedEnterprise Software

    Portfolio: Livefyre, Edgewise Therapeutics, HighLife, ZypMedia and 61 more

    Verified email available

  • Rick LewisVerified

    Venture Capital · United States

    Health CareCybersecurityWomen FoundedEnterprise Software

    Portfolio: Livefyre, Edgewise Therapeutics, HighLife, ZypMedia and 61 more

    Verified email available

  • Rob HayesVerified

    Incubator · United States

    E-commerceWomen FoundedDesignAndroid

    Portfolio: Sproutling Acquired by Mattel, RaiseMe, EAT Club, Channel and 27 more

    Verified email available

  • Sean FlynnVerified

    Venture Capital · United States

    Autonomous VehiclesWomen FoundedEnterprise SoftwareHR Tech

    Portfolio: Dollar Shave Club, Socratic, Spiceworks, Mocana and 32 more

    Verified email available

  • Steve KrauszVerified

    Venture Capital · United States

    Health CareCybersecurityWomen FoundedEnterprise Software

    Portfolio: Livefyre, Edgewise Therapeutics, HighLife, ZypMedia and 66 more

    Verified email available

  • Chip Russo

    Venture Capital, Advisor, Angel/Individual · United States

    SeedSeries AAdvertisingEnterprise SoftwareDigital MediaMarketplace

    Portfolio: PointRoll, Collective Media, Zype, Digital Broadcasting Group DBG and 7 more

    Contact details available

  • Jacques Benkoski

    Venture Capital, Strategy Operator, CEO · United States

    Series AHealth CareCybersecurityWomen FoundedEnterprise Software

    Portfolio: Livefyre, Edgewise Therapeutics, HighLife, ZypMedia and 64 more

    Contact details available

  • Mark Koulogeorge

    Venture Capital, Private Equity Firm, Investor · United States

    SeedHealth CareE-commerceDatabasesWomen Founded

    Portfolio: Machinima, Buzz Media, TopSchool, Clear Software and 39 more

    Contact details available

  • Dafina Toncheva

    Venture Capital · United States

    Health CareCybersecurityWomen FoundedEnterprise Software

    Portfolio: Livefyre, Edgewise Therapeutics, HighLife, ZypMedia and 64 more

    Contact details available

  • Todd Chaffee

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

    Media and Entertainment

    Portfolio: Dollar Shave Club, POPSUGAR, Structure Capital, xAd and 55 more

    Contact details available

By investment stage

By location

Related industries

Most-backed portfolio companies

Frequently asked questions

How many ZEFR investors are on Angel Roster?

Angel Roster lists 15 ZEFR investors. 9 of them (60%) include a verified email address.

What types of investors are they?

The most common investor types are Venture Capital Firms (12), Angel Investors (5) and Private Equity Firms (4). An investor can have more than one type, for example an angel who is also a venture partner.

Which stages do ZEFR investors invest in?

Among those that list a stage, the most common are Series A (5), Seed (4) and Early Stage Venture (1).

Where are ZEFR investors based?

Most are based in the United States (15).

Which companies have ZEFR investors backed?

The most-backed portfolio companies among them are Pluto TV (6), Smartling (6), XANT.ai (5), Electric Cloud (5) and Exablox (5).

How do I contact ZEFR investors?

Create a free Angel Roster account to search and filter all 15, then unlock verified emails and LinkedIn profiles on a paid plan. Every plan starts with a 3-day free trial.