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Asset manager · New York, NY

Nassau Alternative Investments LLC

SEC-registered investment adviser · CRD 300006 · SEC 801-117014

At a glance

Nassau Alternative Investments LLC is an SEC-registered investment adviser based in New York, New York, with $1.4 billion in regulatory assets under management as of its Form ADV filed July 21, 2026. Its largest client group by assets is insurance companies. By Form ADV it is a asset manager, ranked 1,192nd of 3,218 asset managers and 4,381st of 17,210 SEC-registered advisers by assets.

Main office 646-630-8376As filed on Form ADV

Regulatory AUM
$1.4B
Rank among asset managers
#1,192 of 3,218
Rank among all SEC RIAs
#4,381 of 17,210
Rank in New York
#1,003 of 2,591
Clients
8
Accounts
9
Discretionary
48% of AUM
Employees
6
Advisory staff
6
Offices
1

Owners and executives on its Form ADV

Custody and brokerage

Broker-dealer

Affiliated broker-dealer

It names an affiliated broker-dealer: 1851 Securities, Inc.

Other RIAs with an affiliated broker-dealer

Who it serves

Client typeClientsRegulatory AUMShare
Insurance companies5$706M49%
Pooled investment vehicles3$686M48%
Corporations or other businesses–$43M3%

Private funds

Nassau Alternative Investments LLC reports 3 private funds with $682M in gross assets: private equity funds, securitized asset funds (Form ADV Item 7.B).

Disciplinary disclosures

Nassau Alternative Investments LLC reports no disciplinary disclosures in Item 11 of Form ADV. Read the details on the SEC’s adviser search ↗

Services

  • Portfolio management for pooled investment vehicles
  • Portfolio management for businesses and institutions

How it’s paid

  • A percentage of assets under management
  • Performance-based fees

AtlasMembers

The full record on Nassau Alternative Investments LLC

Ten years of SEC filings, its owners and contacts, and how it stacks up against its peers. Atlas members see all of it.

Assets, accounts, clients and staff, 6 years of filings
Locked
Growth over one, three and five years
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Rank against 961 peers of its type and size
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Owners and executives, with titles and stakes
5 namedLocked
Main office, fax and compliance officer
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Filing changes this year, with alerts
2Locked
Open Atlas free

Free while Atlas launches: create a free account and confirm your email. Every figure comes from SEC filings.

Background

Questions

How much does Nassau Alternative Investments LLC manage?

Nassau Alternative Investments LLC reports $1.4 billion in regulatory assets under management across 9 accounts, 48% of it on a discretionary basis, on its Form ADV filed July 21, 2026.

What kind of firm is Nassau Alternative Investments LLC?

Nassau Alternative Investments LLC is a asset manager by its Form ADV answers. Most of its assets are managed for funds, institutions or other businesses rather than individuals.

Who are Nassau Alternative Investments LLC’s clients?

By assets, its largest client types are insurance companies ($706 million, 5 clients); pooled investment vehicles ($686 million, 3 clients); corporations or other businesses ($43 million).

Does Nassau Alternative Investments LLC manage private funds?

Yes. It reports 3 private funds with $682 million in gross assets, including private equity funds, securitized asset funds.

Does Nassau Alternative Investments LLC have any disciplinary history?

Nassau Alternative Investments LLC reports no disciplinary disclosures in Item 11 of its Form ADV. Check the SEC’s adviser search for the latest record.

Where these numbers come from

Every figure is Nassau Alternative Investments LLC’s own answer on its latest Form ADV, from the SEC’s registered-adviser list as of October 1, 2026: regulatory assets and accounts (Item 5.F), clients by type (5.D), employees (5.A and 5.B), compensation (5.E) and services (5.G). Custodians come from Schedule D 5.K(3) of its latest filing (2026-07-21), which lists those holding 10% or more of separately managed account assets and the amount at each. “Hybrid” means some employees are also registered representatives of a broker-dealer (Item 5.B(2)); affiliated broker-dealers are the related persons it lists in Item 7.A and Schedule D. Firm type comes from its own answers: broker-dealer firms are registered broker-dealers themselves (Item 6.A); private fund advisers manage mostly private funds (Item 7.B, 5.D); wealth managers manage at least half their assets for individuals (5.D). Ranks compare it by regulatory assets with every SEC-registered adviser and with firms of its type. Figures are as of the firm’s last annual update, so they can lag recent deals and market moves. Regulatory AUM counts assets the firm continuously supervises and can differ from what a firm markets.

Not an endorsement or a recommendation. Before hiring any adviser, read its Form ADV Part 2A brochure and check its record on the SEC’s adviser search. How to check a financial advisor →