# H. C. DENISON CO.

H. C. DENISON CO. of SHEBOYGAN, WI is an SEC-registered investment adviser. This firm reports disciplinary history on Form ADV.

## Registration

- CRD: 1628
- Type: SEC-registered investment adviser
- SEC file number: 801-131334
- Location: 618 NORTH 7TH STREET, SHEBOYGAN, WI, 53081
- Phone: 920 457-9451
- Latest filing: 2026-03-23
- Regulatory AUM: $310.0M
- Discretionary AUM: $310.0M
- Clients: 4
- Accounts: 889

## Business model

- Compensation: % of AUM
- Clients served: High net worth, Pooled vehicles

## Officers, owners & control persons (8)

| Name | Role | Location |
| --- | --- | --- |
| James Anthony Testwuide | CEO, PRES, & TREASURER, CCO, & SHAREHOLDER | — |
| Konrad Cullen Testwuide | CHAIRMAN | — |
| Robert Joseph Kuehl | VICE-PRESIDENT | — |
| Marlo Jean Testwuide | CHIEF OPERATIONS OFFICER AND VICE PRESIDENT OF OPERATIONS | — |
| TESTWUIDE JAMES ANTHONY | CEO, PRES, & TREASURER, CCO, & SHAREHOLDER | — |
| TESTWUIDE KONRAD CULLEN | CHAIRMAN | — |
| KUEHL ROBERT JOSEPH | VICE-PRESIDENT | — |
| TESTWUIDE MARLO JEAN | CHIEF OPERATIONS OFFICER AND VICE PRESIDENT OF OPERATIONS | — |


## Disclosures (3)

| Initiated | Type | Allegations | Status | Amount |
| --- | --- | --- | --- | --- |
| 2022-12-14 | regulatory | THE FIRM IDENTIFIED TRANSACTIONS HAD OCCURRED PRIOR TO ITS REGISTRATION BEING APPROVED BY THE STATE OF MAINE. | Final | $5K |


## Related pages

- Form ADV Part 2 brochure: https://search.stillhousedata.com/firm/1628/brochure
- Similar advisers: https://search.stillhousedata.com/firm/1628/similar
- Related entities: https://search.stillhousedata.com/firm/1628/related
- SEC IAPD (source of record): https://adviserinfo.sec.gov/firm/summary/1628

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Source: public SEC Form ADV data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.