Tortoise Investment Management, LLC
Data sourced from SEC public records (and other sources when available). Refreshed weekly • Updated today.
About
Tortoise provides discretionary investment management primarily to high‑net‑worth individuals and trusts, with a substantial portion of its clientele made up of professionals in demanding careers. In addition to portfolio management, the firm offers ongoing financial advice on non‑investment matters—such as college and retirement planning, mortgage financing, insurance, charitable giving and estate planning—when clients request those services.
The firm’s investment philosophy emphasizes risk management, a conservative long‑term orientation, and tax efficiency, relying on asset allocation, diversification and periodic rebalancing as primary portfolio drivers. Implementation is largely via ETFs and index‑like mutual funds, and for certain clients Tortoise employs direct indexing through a sub‑adviser as well as tax‑loss harvesting, interval funds and options strategies for hedging or income where appropriate.
Tortoise is a fee‑only fiduciary that treats cash as an asset class included in assets under management and recently changed its fee calculation process to a third‑party performance reporting system that uses trade‑date valuations, which can create minor timing differences with custodian reports. The firm also leaves proxy voting to clients (proxys are sent directly) and will not exercise discretionary authority to purchase cryptocurrencies without explicit client authorization, practices that distinguish its governance and digital‑asset approach from many peers.
Client services
Expertise
Occupation focus
Demographic focus
Fee options
$0 - $1,000,000: 1.25% $1,000,000 - $5,000,000: 1.00% $5,000,000 - $10,000,000: 0.75% $10,000,000+: 0.50%
Minimum fee: Minimum quarterly fee of $2,500 for new clients, which may be waived or reduced at discretion Fee-only: Firm is fee-only; no commissions, 12b-1 fees, or referral fees accepted
Main office
2 Westchester Park Drive, Suite 215
White Plains NY 10604
Advisors at this office
15
Most active in
California · Connecticut · District of Columbia · Florida · Illinois · Maryland · Massachusetts · New Hampshire · New Jersey · New York · Pennsylvania · Texas · Virginia · Washington
Also doing business as
Ian Yankwitt · Tortoise Investment Management, LLC · Yankwitt, Ian Jeffrey
Disclosures
Exclamation point means they have disclosures of this type. Check mark means no disclosures of this type were found.
Business activities & affiliations
Is not active or affiliated with:
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Insurance agent
They sell insurance products and may earn commissions on those sales.
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Broker-dealer / trader
They provide brokerage services and may earn transaction-based compensation in addition to advisory fees.
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Bank
They're affiliated with a bank that may offer its own financial products and services.
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Trust company
They provide trust and estate administration services, typically for separate fees.
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Fund sponsor
They manage or sponsor investment funds and may earn management or performance-based fees if clients invest in them.
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Accountant / CPA / tax prep
They offer tax and accounting services, typically for separate fees.
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Lawyer
They provide legal services, typically billed separately.
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Real estate agent
They facilitate real estate transactions and may earn commissions.
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Other specialized services
They may provide services such as pension consulting or municipal advisory work, typically for separate fees.
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Advisors at this firm
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