AltMountain

Great Mountain Partners

New Haven, CT · CRD 309528
Private equity manager

Great Mountain Partners is an SEC-registered investment adviser based in New Haven, CT that reports managing 11 private funds on Form ADV, including 11 private equity funds. It reports $14.1 billion in regulatory assets under management. Its private funds hold $14.1 billion in gross assets.

Regulatory assets under management
$14.1 billionForm ADV Item 5.F
Gross assets of private funds
$14.1 billionAll private fund types, Form ADV
Private funds managed
11PE 11 · VC 0 · hedge 0
Employees
17Form ADV Item 5.A
Registration
SEC-registered adviserCRD 309528
Latest Form ADV
03/27/2026Disciplinary disclosures: none reported

Private equity funds filing Form D (1)

Matched to this firm by the fund names and related persons in each Form D. The list may be incomplete.

Private funds reported on Form ADV (8)

As reported in the adviser's Form ADV filed May 20, 2024. Funds also listed from Form D are shown above.

Fund vehicles: feeder funds and single-deal vehicles (1)

Fund
Gross assets
Minimum
Owners
Adviser
Nyanza LLC - Series II
Delaware, United StatesPrivate equity fund
Gross assets$293M
Minimum$10.0M
Owners3
AdviserGreat Mountain Partners

Feeder funds invest through a master fund; single-deal vehicles (SPVs, co-investments, series) hold one investment.

From SEC filings. Firm data comes from the SEC's Form ADV data. AltMountain has not verified this information, and it is not an offer, solicitation or recommendation. Full disclosures