Yammer Investors

17 investors on Angel Roster list Yammer in their portfolio. Most are venture capital firms and private equity 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 Yammer can appear together.

Investors listed
17
With verified email
71%
Most common stage
Seed
Top location
United States

Updated October 13, 2026 · How we compile this data

Top 17 Yammer investors

The most complete profiles first. Showing 17 of 17.

  • David WeidenVerified

    Venture Capital, Angel/Individual, Investor · United States

    Series BHealth CareWearablesE-commercePayments

    Portfolio: Fernish, WanderJaunt, Kaggle, GarageBand and 6 more

    Verified email available

  • Jason PortnoyVerified

    Venture Capital, Micro VC · United States

    SeedPre-SeedPaymentsCybersecurityEnterprise SoftwareApps

    Portfolio: Space Monkey, CapLinked, Collective Health, Zipline International and 59 more

    Verified email available

  • Ken HoweryVerified

    Angel/Individual, Investor · United States

    SeedPre-SeedHealth CareWellnessEnterprise SoftwareHR Tech

    Portfolio: Geni, EasyPost, Moat, Facebook and 18 more

    Verified email available

  • Max LevchinVerified

    Venture Capital, Founder, Angel/Individual · United States

    SeedPre-SeedHealth CarePaymentsCybersecurityWellness

    Portfolio: Breezeworks, AdRoll Group, Mixpanel, AngelList and 58 more

    Verified email available

  • Andrew MaguireVerified

    Micro VC · United States

    PaymentsCybersecurityAppsCryptocurrency

    Portfolio: Elucd, Space Monkey, CapLinked, ViDi and 49 more

    Verified email available

  • Chris ShanahanVerified

    Venture Capital, Private Equity Firm, Marketing Operator · United States

    Health CareE-commerceEvents ServicesCybersecurity

    Portfolio: Anaplan, Collective Health, Tesla, Foursquare and 64 more

    Verified email available

  • Izhar ArmonyVerified

    Angel/Individual · United States

    Portfolio: Qualcomm, Conduit Labs, Yammer, iSkoot and 8 more

    Verified email available

  • Jocelyn KinseyVerified

    Venture Capital, Private Equity Firm · United States

    Health CareE-commerceEvents ServicesCybersecurity

    Portfolio: Anaplan, Collective Health, Tesla, Foursquare and 64 more

    Verified email available

  • John FisherVerified

    Venture Capital, Private Equity Firm · United States

    Health CareE-commerceEvents ServicesCybersecurity

    Portfolio: Anaplan, Collective Health, Tesla, Foursquare and 71 more

    Verified email available

  • Keith RaboisVerified

    Angel/Individual · United States

    Health CareWearablesE-commerceMessaging

    Portfolio: DotBlu, Lever, MileWise, Xoom and 76 more

    Verified email available

  • Kevin TuVerified

    Venture Capital, Private Equity Firm, Marketing Operator · United States

    Health CareE-commerceEvents ServicesCybersecurity

    Portfolio: Anaplan, Collective Health, Tesla, Foursquare and 64 more

    Verified email available

  • Sandesh PatnamVerified

    Private Equity Firm · United States

    Health CareE-commerceEvents ServicesCybersecurity

    Portfolio: Anaplan, Collective Health, Tesla, Foursquare and 64 more

    Verified email available

  • Chamath Palihapitiya

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

    SeedE-commerceSportsWellnessWomen Founded

    Portfolio: Tiny Post, LotusFlare, Influitive, Groq and 52 more

    Contact details available

  • Max Gazor

    Venture Capital, Entrepreneurship Program, Growth Operator · United States

    CrowdfundingSeries BEarly Stage VentureSeries ANetwork InfrastructureCybersecurityEnterprise SoftwareInvestment Management

    Portfolio: Cybereason, CloudGenix, Sleuth, Respond Software and 10 more

    Contact details available

  • Sam Visal

    Venture Capital, Private Equity Firm, Marketing Operator · United States

    Health CareE-commerceEvents ServicesCybersecurity

    Portfolio: Anaplan, Collective Health, Tesla, Foursquare and 64 more

    Contact details available

  • Robert Adams

    Private Equity Firm · United States

    Health CareData IntegrationWearablesE-commerce

    Portfolio: Porch, Heartflow, Addepar, PeerIQ and 5 more

    Contact details available

  • Sam Fort

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

    Series AHealth CareE-commerceEvents ServicesCybersecurity

    Portfolio: Yammer, Solarcity, Boxcom

    Contact details available

By investment stage

By location

Related industries

Most-backed portfolio companies

Frequently asked questions

How many Yammer investors are on Angel Roster?

Angel Roster lists 17 Yammer investors. 12 of them (71%) include a verified email address.

What types of investors are they?

The most common investor types are Venture Capital Firms (11), Private Equity Firms (10) and Angel Investors (8). An investor can have more than one type, for example an angel who is also a venture partner.

Which stages do Yammer investors invest in?

Among those that list a stage, the most common are Seed (4), Pre-Seed (3) and Series B (2).

Where are Yammer investors based?

Most are based in the United States (17).

Which companies have Yammer investors backed?

The most-backed portfolio companies among them are Twitter (9), Collective Health (8), SpaceX (7), Simplivity (7) and Front (6).

How do I contact Yammer investors?

Create a free Angel Roster account to search and filter all 17, then unlock verified emails and LinkedIn profiles on a paid plan. Every plan starts with a 3-day free trial.