Data / Investment advisers / Wisconsin / Thompson Investment Management, Inc.
Thompson Investment Management, Inc., Madison, WI: $3.1 billion AUM, SEC registered investment adviser
Updated November 7, 2026. Source: the SEC's Form ADV data files for investment advisers.
Thompson Investment Management, Inc. is an SEC registered investment adviser with its main office in Madison, Wisconsin and reports $3.1 billion in regulatory assets under management in its Form ADV filed September 11, 2026. Its clients include investment companies, high net worth individuals and pension and profit sharing plans. It is paid through a percentage of assets under management and fixed fees.
The request: Watch Thompson Investment Management, Inc. (CRD number 129609): each new Form ADV amendment, with AUM, clients and private funds. $10 of work on sign-up, no card.
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- Registration
- SEC registered investment adviser
- CRD number
- 129609
- SEC file number
- 801-62562
- SEC status
- Approved, effective December 5, 2003
- Main office
- 1255 Fourier Drive Suite 200, Madison, WI 53717
- Phone
- (608) 827-5700
- Website
- thompsonim.com
- Regulatory AUM
- $3,084,417,000 in the Form ADV filed September 11, 2026
- Discretionary AUM
- $3,084,417,000
- Accounts
- 941
- Employees
- 17, of which 6 give investment advice
- Form of organization
- Corporation
- Paid through
- a percentage of assets under management, fixed fees
- Form ADV Item 11 disclosures
- None reported
- Latest Form ADV filing
- September 11, 2026
- SEC record
- Investment Adviser Public Disclosure
Clients
Client types the adviser reports in Form ADV item 5.D, with the AUM it attributes to each.
| Client type | Clients | AUM |
|---|---|---|
| Investment companies | 1 | $2.15 billion |
| High net worth individuals | 153 | $681.5 million |
| Pension and profit sharing plans | 33 | $106.8 million |
| Individuals (other than high net worth individuals) | 288 | $79.2 million |
| Charitable organizations | 10 | $69.4 million |
| Corporations or other businesses | Fewer than 5 | $9,000 |
AUM in the SEC's monthly files
Each change in the AUM the adviser reported across the monthly SEC files held here, with the first file that shows the new value.
| First in the file of | AUM | Form ADV filed |
|---|---|---|
| April 1, 2026 | $3.08 billion | March 27, 2026 |
| December 1, 2025 | $2.66 billion | March 27, 2025 |
Other advisers in Madison
| Adviser | City | AUM | Private funds | Source |
|---|---|---|---|---|
| Trustage Investment Management | Madison | $39.46 billion | 6 | adviserinfo.sec.gov |
| Madison Investment Advisors, LLC | Madison | $13.84 billion | Not listed | adviserinfo.sec.gov |
| Harbour Investments, Inc. | Madison | $9.60 billion | Not listed | adviserinfo.sec.gov |
| Baker Tilly Wealth Management, LLC | Madison | $5.19 billion | Not listed | adviserinfo.sec.gov |
| Madison Asset Management | Madison | $4.86 billion | Not listed | adviserinfo.sec.gov |
| Resonant Capital Advisors, LLC | Madison | $2.96 billion | Not listed | adviserinfo.sec.gov |
| Isthmus Partners, LLC | Madison | $1.44 billion | Not listed | adviserinfo.sec.gov |
| Madison Partners | Madison | $1.30 billion | Not listed | adviserinfo.sec.gov |
Also on SpecStream
- Investment advisers in Madison, WI
- Investment advisers in Wisconsin
- Advisers with $1 billion to $10 billion in AUM
- Advisers serving investment companies
- Advisers serving high net worth individuals
- Thompson Investment Management, Inc. on the SEC's adviser search
Public data published by the US Securities and Exchange Commission (US government work). Advisers report these values themselves in Form ADV, and neither the SEC nor the states approve or guarantee them. AUM is regulatory assets under management as the adviser reported it in Form ADV item 5.F, which can differ from the AUM a firm quotes elsewhere. Exempt reporting advisers do not report AUM. Office address, phone and website are the adviser's main office as filed; a firm that files its main office as a private residence shows no street address or phone. An Item 11 disclosure is a reported event, not a finding about the firm today. Details for each firm are on the SEC's Investment Adviser Public Disclosure site. This page uses SEC data and is not endorsed or certified by the SEC. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.