Firm profile

INVESTMENT MANAGEMENT GROUP

BILLINGS, MTCRD 122166Latest ADV March 25, 2026

Investment Management Group is an SEC registered investment adviser organized as a corporation with a primary office location in Billings, MT. Its latest Form ADV filing, dated March 25, 2026, reports $5.2B in regulatory assets under management, 30 employees, 8 offices, and 3,098 accounts.

Assets Under Management
$5.2B
Employees
30
Offices
8 offices
Total Clients
1,532
Primary office
BILLINGS, MT
2700 KING AVE. W, BILLINGS, MT, United States
ADV Item 1F location record

Contact and digital presence

ADV profile links
Phone(406) 655-3960
WebsiteNot reported
LinkedInNot reported

Leadership

2 roles identified
CEORonald W. O'donnell
CCOJohn E. Galt

Advisory services offered

5 types reported
Financial Planning Services
Other advisory services
Pension consulting services

Fee models offered

3 types reported
Asset based fees
Fixed fees
Other fee arrangements
Sources checked May 14, 2026

Client Coverage Demographics

Top client segmentIndividuals represent 62.7% of total clients.
Top client categories% of clientsClients
1
Individuals
62.7%
960
2
HNWI
24.7%
379
3
Corporations
4.3%
66
4
Charitable
4.2%
64
5
Pension Plans
1.6%
25

Regulatory Assets Under Management Breakdown

Total regulatory assets under management$5.2Bas of March 25, 2026
Discretionary33.5%
$1.8B
33% of total RAUM33.5%
Non-discretionary66.5%
$3.5B
67% of total RAUM66.5%
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$5.2B
Total Accounts3,098
10Y AUM Change+$2.5B (+91.6%)

Employee Growth by Quarter

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

Total Employees30
Clients per Employee51:1
10Y Employee Change+14 (+87.5%)

* 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.