SEC-registered wealth management firm Broker-dealer affiliated
First Long Island Investors, LLC
As of its Form ADV filed March 31, 2026, First Long Island Investors, LLC, an SEC-registered, broker-dealer affiliated wealth management firm in Jericho, New York, reported $1.9 billion in regulatory assets under management across 940 accounts, ranking #80 among all wealth firms in New York by assets.
Registration
- Registration
- SEC-registered, Approved
- CRD number
- 167212
- SEC file number
- 801-21607
- Registered since
- July 13, 1984
- Latest Form ADV filing
- March 31, 2026
- Organized as
- Limited Liability Company
- Fiscal year ends
- December
- Other offices
- 0
Key figures
- Regulatory assets under management
- $1.9 billion
- Discretionary
- $1.9 billion (100.0%)
- Non-discretionary
- $0
- Accounts
- 940 (940 discretionary)
- Clients
- 619, approximate as reported
- Employees
- 24
- Advisory staff
- 8 performing investment advisory functions
- Average account
- $2.0 million
- Asset growth, 1 year
- 9.0% (from $1.7 billion a year earlier)
- Asset growth, 3-year annual rate
- 11.3% (from $1.3 billion three years earlier)
- Asset growth, 5-year annual rate
- 4.7% (from $1.5 billion five years earlier)
- Client growth, 1 year
- -1.6% (from 629)
Broker-dealer affiliated. The firm is controlled by a public company (Schedule D, Item 10.A) and affiliated with a broker-dealer (Item 7.A(1)) whose registered representatives are among its advisory staff (Item 5.B(2)). It is ranked among all wealth firms, the directory's view that includes wirehouses and broker-dealer firms, not in the main lists of independent RIAs. How firms are classed.
Growth rates come from the SEC's yearly snapshots and are left blank when the years are not comparable.
Rankings
Among all wealth firms, including wirehouses and broker-dealer firms.
Assets over time
Data table
| As of | RAUM |
|---|---|
| October 1, 2013 | $645.0 million |
| October 1, 2014 | $805.8 million |
| October 1, 2015 | $906.9 million |
| October 3, 2016 | $910.3 million |
| October 2, 2017 | $937.7 million |
| October 1, 2018 | $1.1 billion |
| October 1, 2019 | $1.0 billion |
| October 1, 2020 | $1.3 billion |
| October 4, 2021 | $1.5 billion |
| October 3, 2022 | $1.7 billion |
| October 5, 2023 | $1.3 billion |
| October 1, 2024 | $1.5 billion |
| September 2, 2025 | $1.7 billion |
| October 2, 2026 | $1.9 billion |
Clients and services
Client mix
| Measure | Bar | RAUM |
|---|---|---|
| High net worth individuals 325 clients | $1.1 billion | |
| Pooled investment vehicles 20 clients | $568.8 million | |
| Pension and profit sharing plans 9 clients | $59.5 million | |
| Individuals (other than high net worth) 170 clients | $57.8 million | |
| Corporations or other businesses 7 clients | $30.6 million | |
| Charitable organizations 15 clients | $25.6 million |
How the firm is paid
- A percentage of assets under management
- Fixed fees
- Performance-based fees
Advisory services
- Portfolio management for individuals or small businesses
- Portfolio management for pooled investment vehicles
- Portfolio management for businesses or institutional clients
- Selection of other advisers
- Publication of periodicals or newsletters
- Educational seminars or workshops
- Other
Wrap fee program sponsor or portfolio manager: no.
Other business, affiliations and custody
Other business activities (Item 6.A)
None reported.
Financial industry affiliations (Item 7.A)
- Broker-dealer
- Insurance company or agency
- Sponsor, general partner or managing member of pooled investment vehicles
Advises 9 private funds (Item 7.B).
Custody (Item 9)
The firm reported custody of client cash or securities, $553.6 million in total.
Investment adviser representatives
- IARs registered with the firm
- 7
- Also registered through a broker-dealer
- 4
- Employees who are IARs (Form ADV 5.B(3))
- 7
Designations held by the firm's IARs: CFA 2, CFP 1.
0 of the firm's 7 IARs are registered in jurisdictions that require IAR CE. IAR CE requirements by state.
Counts only. AdvisorIQ does not list individual people.
Disclosures
On Form ADV Item 11 the firm answered yes to 0 disclosure questions. See the detail on IAPD.
Succession and acquired firms
On Form ADV Item 4 the firm did not report succeeding to another adviser's business.
Similar-sized firms in New York
| Firm | City | RAUM |
|---|---|---|
| Wilkinson Global Asset Management LLC | New York | $1.9 billion |
| Ashton Thomas Securities, LLC | Rochester | $1.9 billion |
| Rockbridge Investment Management, LLC | Syracuse | $1.8 billion |
| Altfest Personal Wealth Management | New York | $1.8 billion |
| Aegis Capital Corp. | New York | $1.8 billion |
The five wealth firms, broker-dealer affiliated firms included, nearest in regulatory assets with a main office in the same state.
Elsewhere
- First Long Island Investors, LLC on IAPD: Form ADV, brochures and disclosure detail.
- Firm website: www.fliinvestors.com
- Wealth management firms in New York
Firm data as of October 2, 2026, from ia100226.zip. Figures are as the firm reported them; corrections are made on Form ADV and appear after the next monthly reload.
Data as of October 2, 2026, from Form ADV. Sources: SEC registered adviser data (ia100226.zip) and IAPD compilation reports. How the directory is built.