Skip to main content
Foundation Source logo

FOUNDATION LOG IN

1-800-839-0054
  • Home
  • Who We Serve
    • Donors and Families
      • New Foundations
      • Existing Foundations
    • Trusted Advisors
      • Wealth Advisors
      • Attorneys
  • What We Do
    • Overview of Services
    • Foundation Source Back-Office
    • Foundation Source Online
    • Foundation Source Advisors
    • Advanced Services
  • About Us
    • About the Company
    • About Our Clients
    • Company History
    • Leadership Team
    • Strategic Alliances
    • News & Events
  • Contact Us

William Mahone

Director

William Mahone is a Managing Director of Berkley Capital, LLC, the private equity investment group of W.R. Berkley Corporation. Mr. Mahone has been actively engaged in the private equity business since 1988, when he left Willkie Farr & Gallagher to become Vice President and General Counsel of Interlaken Capital, Inc. Mr. Mahone became a Managing Director of Berkley Capital upon its formation in 2002.

Mr. Mahone currently serves on the Board of Directors of Foundation Source, Spectrum Corona Energy LLC, FSV Payment Systems, Inc. and Technology Investment Partners LLC. He was an organizer of The Greenwich Bank & Trust Company, and a director from 1998 to 2003. Mr. Mahone is a graduate of Stanford University and Harvard Law School.

  • Board Member

Next Steps

Get Started
View Demo
Resource Center

QUESTIONS?

Contact Us

© 2012 All rights reserved. Foundation Source Philanthropic Services Inc.  |  55 Walls Drive, Fairfield, CT 06824  |  800-839-0054Privacy Notice
Foundation Source is a registered trademark of Foundation Source Philanthropic Services Inc.Terms of Use