Mainstream in the United States

Our US fund administration service offers investment managers a conduit into the largest hedge fund and private equity markets in the world.

Mainstream Fund Services, Inc is a full-service fund administration firm dedicated to partnering with their clients to provide accurate, timely and comprehensive accounting services to the financial services industry.

With offices in the New York City metro area and clients around the world, Mainstream’s highly professional and seasoned associates provide world class service, transparency and oversight along with independent data verification. Cutting edge technology is fully automated, flexible and provides a cost-effective level of reliability that meets the specific needs of sophisticated investors.

Our experts bring a mix of complex domestic and international experience covering:

  • Hedge funds, private equity, venture capital, real estate, fund of funds
  • Accounting and fund administration
  • Investor services and reporting
  • Business structuring
  • Tax and audit support

New York, United States Office

New York, United States Office

Ronkonkoma, United States Office

  • Mainstream Fund Services, Inc.
  • 4175 Veterans Memorial Highway, Suite 202, Ronkonkoma, NY 11779 USA
  • +1 212 802 7980
Ronkonkoma, United States Office

Our Staff

Denise DePaolo
Chief Executive Officer, Americas

Denise DePaola is CEO of Mainstream’s US operations. Denise has over 20 years of experience in public accounting and the alternative investment / financial services arena, with a particular emphasis on fund administration and business development. Denise has been licensed by the State of New York as a Certified Public Accountant (CPA). Denise has also been recognized as a thought leader, game changer and executive of the year by the hedge fund administration and consulting industry. She received a BA in Accounting and Information Systems from CUNY Queens College, NY, attended Fairleigh Dickinson University, NJ and Wroxton College, Oxfordshire, England. Denise is an active board member of the Dying to Live foundation.

Jay Maher
Chief Executive Officer, Private Equity, Venture Capital and Real Estate

Jay is a recognised leader in private equity administration with more than 24 years of industry experience. He is responsible for Mainstream’s private equity, venture capital and real estate fund administration business globally.

Prior to joining Mainstream, Jay built SS&C’s Private Equity Services Group from 2004 to 2015. Most recently he founded boutique private equity administrator Paddock Fund Services.

Jay earned a Bachelor of Science in Accounting from Rowan University.