AltMountain

Mainstream Fund Services

Private fund administrator · 25 private funds on SEC Form ADV

Advisers' Form ADV filings name Mainstream Fund Services as administrator to 25 private funds. It ranks No. 194 of 588 administrators by number of private funds served.

Rankings

Funds served, by type

  • Private equity funds14
  • Venture capital funds11

Where its clients are

State of the funds' U.S. advisers.

  • California12
  • Florida7
  • Texas4
  • Connecticut2

Where the funds are organized

  • United States23
  • Cayman Islands2

Private funds that name Mainstream Fund Services (5 listed here)

20 more funds name Mainstream Fund Services: feeder funds, single-deal vehicles and funds listed from Form D, shown on their own or their adviser's pages.

Names as filed

Mainstream Fund Services; Mainstream Fund Services, Inc. (Now Part of Apex Group LTD.)

From SEC filings, not verified. Counts are the number of private funds whose adviser names the firm in that role on Form ADV (Schedule D, Section 7.B.(1)), in the SEC's public Form ADV data through filings made by Dec 26, 2024. A fund can name several firms in the same role. Names are grouped automatically (spelling variants and, for the largest firms, their affiliated entities), which can be incomplete. Rankings count funds only; they do not reflect quality, assets served or fees, and are not a recommendation. Corrections: hello@altmountain.com.