Wealth manager, independent · New York, NY
Joel Isaacson & Co., LLC
SEC-registered investment adviser · CRD 152450 · SEC 801-70880
At a glance
Joel Isaacson & Co., LLC is an SEC-registered investment adviser based in New York, New York, with $9.3B in regulatory assets under management as of its Form ADV filed March 16, 2026. It reports 1,267 individual clients, 1,132 of them high-net-worth, holding an average of about $7.4 million each, and 52 employees. That ranks it 110th among the nation’s 5,657 independent wealth management RIAs and 15th of 408 in New York. It reports Charles Schwab as the custodian for its clients’ separately managed accounts.
Main office 212-302-6300joelisaacson.comLinkedInAs filed on Form ADV
- Regulatory AUM
- $9.3B
- Rank among independent wealth managers
- #110 of 5,657
- Rank among all SEC RIAs
- #1,436 of 17,210
- Rank in New York
- #15 of 408
- Individual clients
- 1,267
- High-net-worth clients
- 1,132
- Accounts
- 5,532
- Discretionary
- 79% of AUM
- Employees
- 52
- Advisory staff
- 20
- Offices
- 1
Owners and executives on its Form ADV
- Stanley L. AltmarkPartner
- Joel S. IsaacsonChairman & Partner
- Martin SteinPartner; Tax Director
- Lee SteinmetzPartner; Tax Director
- Robert E. PaulPartner
- David N PeltzChief Executive Officer, Partner, and Chief Investment Officer
- Morgan E. TesorieroChief Compliance Officer
Custody and brokerage
Broker-dealer
Affiliated broker-dealer
It reports a broker-dealer among its affiliates on Form ADV.
Who it serves
| Client type | Clients | Regulatory AUM | Share |
|---|---|---|---|
| High-net-worth individuals | 1,132 | $9.2B | 99% |
| Individuals | 135 | $101M | 1% |
| Charitable organizations | 3 | $6M | <1% |
| Corporations or other businesses | 1 | $3M | <1% |
Disciplinary disclosures
Joel Isaacson & Co., LLC reports no disciplinary disclosures in Item 11 of Form ADV. Read the details on the SEC’s adviser search ↗
Services
- Financial planning
- Portfolio management for individuals and small businesses
- Selecting other advisers
- Other services
How it’s paid
- A percentage of assets under management
- Hourly charges
- Fixed fees
Form ADV and brochures on the SEC’s adviser search ↗joelisaacson.com ↗
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The full record on Joel Isaacson & Co., 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, ten years of filings
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- Growth over one, three and five years
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- Rank against 428 peers of its type and size
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- Owners and executives, with titles and stakes
- 7 namedLocked
- Main office, fax and compliance officer
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- Filing changes this year, with alerts
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Free while Atlas launches: create a free account and confirm your email. Every figure comes from SEC filings.
Similar-size RIAs in New York
All of New York →| Firm | Regulatory AUM | Clients |
|---|---|---|
| Williams Jones Wealth Management, LLCNew York | $12B | 1,517 |
| Tocqueville Asset Management LPNew York | $10B | 1,159 |
| Ritholtz Wealth ManagementNew York | $9.4B | 4,139 |
| Douglas C. Lane & AssociatesNew York | $8.4B | 1,084 |
| Ingalls Investment Management, LLCNew York | $7.8B | 4,245 |
| TAG Associates LLCNew York | $7.1B | 80 |
Background
Questions
How much does Joel Isaacson & Co., LLC manage?
Joel Isaacson & Co., LLC reports $9.3B in regulatory assets under management across 5,532 accounts, 79% of it on a discretionary basis, on its Form ADV filed March 16, 2026.
How many clients does Joel Isaacson & Co., LLC have?
It reports 1,267 individual clients: 1,132 high-net-worth individuals and 135 other individuals. Individuals account for about 100% of its regulatory assets.
Where is Joel Isaacson & Co., LLC headquartered?
Its main office is in New York, New York. It reports 1 office in total and 52 employees, 20 of whom perform investment advisory functions.
How does Joel Isaacson & Co., LLC charge clients?
On Form ADV it lists these forms of compensation: a percentage of assets under management; hourly charges; fixed fees. Fees and minimums are set out in its Form ADV Part 2A brochure, available on the SEC’s adviser search.
What custodian does Joel Isaacson & Co., LLC use?
It reports Charles Schwab as the custodian for its clients’ separately managed accounts. On Schedule D of its Form ADV filed March 16, 2026, it reports these amounts held: Charles Schwab ($9.3B). Form ADV lists only custodians holding 10% or more of separately managed account assets.
Is Joel Isaacson & Co., LLC a hybrid RIA with a broker-dealer?
It reports a broker-dealer among its affiliates on Form ADV.
Is Joel Isaacson & Co., LLC a fiduciary?
As an SEC-registered investment adviser, Joel Isaacson & Co., LLC owes its advisory clients a fiduciary duty under the Investment Advisers Act of 1940, which includes duties of care and loyalty. It reports no employees who are registered representatives of a broker-dealer.
Where these numbers come from
Every figure is Joel Isaacson & Co., 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 (2026-03-16), 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). Its national rank compares it with every US-based independent wealth management RIA, the same field as The Largest RIAs. 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 →