Wealth manager, independent · White Plains, NY
Tortoise Investment Management, LLC
SEC-registered investment adviser · CRD 128723 · SEC 801-65160
At a glance
Tortoise Investment Management, LLC is an SEC-registered investment adviser based in White Plains, New York, with $2.1B in regulatory assets under management as of its Form ADV filed March 27, 2026. It reports 504 individual clients, 360 of them high-net-worth, holding an average of about $4.1 million each, and 21 employees. That ranks it 533rd among the nation’s 5,657 independent wealth management RIAs and 42nd of 408 in New York. It reports Fidelity as the custodian for its clients’ separately managed accounts.
Main office 914-686-0024tortoiseinvestment.comLinkedInAs filed on Form ADV
- Regulatory AUM
- $2.1B
- Rank among independent wealth managers
- #533 of 5,657
- Rank among all SEC RIAs
- #3,551 of 17,210
- Rank in New York
- #42 of 408
- Individual clients
- 504
- High-net-worth clients
- 360
- Accounts
- 3,029
- Discretionary
- 98% of AUM
- Employees
- 21
- Advisory staff
- 16
- Offices
- 15
Owners and executives on its Form ADV
- Riva B. RoloffChief Operating Officer / Member of the Board of Managers (OCT 2019)
- Michael T. MatternChief Compliance Officer
- Justin S. SingerManaging Director / Member of the Board of Managers (OCT 2019)
- Rochelle H. YankwittMember of the Board of Managers (sept 2020)/ Trustee
Custody and brokerage
Broker-dealer
No broker-dealer ties
Tortoise Investment Management, LLC reports no employees registered with a broker-dealer and no affiliated broker-dealer.
Who it serves
| Client type | Clients | Regulatory AUM | Share |
|---|---|---|---|
| High-net-worth individuals | 360 | $2.0B | 97% |
| Individuals | 144 | $61M | 3% |
| Pension and profit sharing plans | – | $2M | <1% |
Disciplinary disclosures
Tortoise Investment Management, 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
How it’s paid
- A percentage of assets under management
Form ADV and brochures on the SEC’s adviser search ↗tortoiseinvestment.com ↗
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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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- Rank against 1,903 peers of its type and size
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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 |
|---|---|---|
| United Asset Strategies Inc.Garden City | $2.2B | 1,577 |
| Next Capital Management LLCNew York | $2.1B | 257 |
| Vanderbilt Advisory ServicesWoodbury | $2.1B | 6,199 |
| Avestar Capital, LLCNew York | $2.1B | 170 |
| Maridea Wealth ManagementBrooklyn | $2.0B | 2,100 |
| Rockbridge Investment Management, LLCSyracuse | $1.8B | 1,518 |
Background
Questions
How much does Tortoise Investment Management, LLC manage?
Tortoise Investment Management, LLC reports $2.1B in regulatory assets under management across 3,029 accounts, 98% of it on a discretionary basis, on its Form ADV filed March 27, 2026.
How many clients does Tortoise Investment Management, LLC have?
It reports 504 individual clients: 360 high-net-worth individuals and 144 other individuals. Individuals account for about 100% of its regulatory assets.
Where is Tortoise Investment Management, LLC headquartered?
Its main office is in White Plains, New York. It reports 15 offices in total and 21 employees, 16 of whom perform investment advisory functions.
How does Tortoise Investment Management, LLC charge clients?
On Form ADV it lists these forms of compensation: a percentage of assets under management. Fees and minimums are set out in its Form ADV Part 2A brochure, available on the SEC’s adviser search.
What custodian does Tortoise Investment Management, LLC use?
It reports Fidelity as the custodian for its clients’ separately managed accounts. On Schedule D of its Form ADV filed March 27, 2026, it reports these amounts held: Fidelity ($1.8B). Form ADV lists only custodians holding 10% or more of separately managed account assets.
Is Tortoise Investment Management, LLC a hybrid RIA with a broker-dealer?
Tortoise Investment Management, LLC reports no employees registered with a broker-dealer and no affiliated broker-dealer.
Is Tortoise Investment Management, LLC a fiduciary?
As an SEC-registered investment adviser, Tortoise Investment Management, 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 Tortoise Investment Management, 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 (2026-03-27), 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 →