Firm profile

TORTOISE INVESTMENT MANAGEMENT, LLC

WHITE PLAINS, NYCRD 128723Latest ADV March 27, 2026

Tortoise Investment Management, LLC is an SEC registered investment adviser organized as a limited liability company with a primary office location in White Plains, NY. Its latest Form ADV filing, dated March 27, 2026, reports $2.1B in regulatory assets under management, 21 employee, 14 offices, and 3,029 accounts.

Assets Under Management
$2.1B
Employees
21
Offices
14 offices
Total Clients
504
Primary office
WHITE PLAINS, NY
2 WESTCHESTER PARK DRIVE, SUITE 215, WHITE PLAINS, NY, United States
ADV Item 1F location record

Contact and digital presence

ADV profile links

Leadership

2 roles identified
CCOMichael T. Mattern
COORiva B. Roloff

Advisory services offered

2 types reported
Financial Planning Services
Portfolio management for individuals and small businesses

Fee models offered

1 types reported
Asset based fees
Sources checked May 15, 2026

Client Coverage Demographics

Top client segmentHNWI represent 71.4% of total clients.
Top client categories% of clientsClients
1
HNWI
71.4%
360
2
Individuals
28.6%
144
Categories with <5 clients
Pension and profit sharing plans<5 clients

Regulatory Assets Under Management Breakdown

Total regulatory assets under management$2.1Bas of March 27, 2026
Discretionary98.0%
$2.0B
98% of total RAUM98.0%
Non-discretionary2.0%
$41M
2% of total RAUM2.0%
Regulatory assets under management are split between discretionary and non-discretionary assets.

Assets under management Growth by Quarter

Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.

Latest AUM$2.1B
Total Accounts3,029
10Y AUM Change+$1.3B (+183.7%)

Employee Growth by Quarter

Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.

Total Employees21
Clients per Employee24:1
10Y Employee Change+6 (+40.0%)

* Metrics are based on the latest available data, including Form ADV filings, brochures, and relationship summaries pulled from the SEC IAPD, and may be subject to change. Learn what is included in the Rialytix data. Please refer to the firm's official disclosures for the most accurate information using their CRD number. This is not investment advice.