Jamieson Grabenhorst has been Managing Partner / Founding Partner of Horst & Graben Wealth Management since May 2018, is a control person of the firm and directly owns 75% or more of it. Jamieson Grabenhorst studied at Washington State University.
Horst & Graben Wealth Management, LLC is a Portland, OR firm with $920M under management, 1,311 clients and 4 advisers across 2 offices, as of its March 2026 filing.
Jamieson Grabenhorst is Owner and Founding Partner of Horst & Graben Wealth Management, based in Portland, Oregon. He is a founding partner and financial advisor at the firm, and his client network spans from Astoria to The Dalles and as far north as Seattle.
Jamieson Grabenhorst’s longest registration was 14 years at Royal Alliance Associates, Inc. (2005–2019). Before joining Horst & Graben Wealth Management in 2018, Jamieson Grabenhorst was registered through CGC Financial Services and Royal Alliance Associates, Inc.
- – present · 8 yearsPortland, OR · Adviser representative · Firm CRD 297368
- CGC Financial Services– · 7 yearsLake Oswego, OR · Adviser representative · Firm CRD 155446
- Royal Alliance Associates, Inc.– · 14 yearsLake Oswego, OR · Adviser representative · Firm CRD 23131
Investment adviser representative registrations
Jamieson Grabenhorst is registered as an investment adviser representative in 2 states. The first approvals date from June 2018; the most recent is Oregon, in July 2018.
- OregonSince 18 July 2018
- TexasSince 29 June 2018
Examinations
| Exam | Name | Passed |
|---|---|---|
| SIE | Securities Industry Essentials Examination | Credited |
| Series 7 | General Securities Representative Examination | 25 September 2001 |
| Series 66 | Uniform Combined State Law Examination | 5 September 2001 |
- Name
- Securities Industry Essentials Examination
- Name
- General Securities Representative Examination
- Name
- Uniform Combined State Law Examination
- Full name
- Jamieson Logan Grabenhorst
- CRD
- 4362410
- Firm
- Horst & Graben Wealth Management · CRD 297368
- Role
- Managing Partner / Founding Partner
- Office
- 6600 SW 92ND AVE, SUITE 210, Portland, OR 97223
- Registration
- Investment adviser registration
- In the industry since
- October 2001
- Disciplinary history
- Not yet shown here · SEC record
- Firm bio
- horstandgraben.com
Where does Jamieson Grabenhorst work?
Jamieson Grabenhorst has been Managing Partner / Founding Partner of Horst & Graben Wealth Management, LLC since May 2018, and is a control person of the firm.
Is Jamieson Grabenhorst a financial advisor?
Yes. Jamieson Grabenhorst has a current investment-adviser registration in Oregon and Texas, through Horst & Graben Wealth Management since June 2018.
How many years of experience does Jamieson Grabenhorst have?
Jamieson Grabenhorst has 25 years in the financial industry, since October 2001, across 3 adviser firms.
What exams has Jamieson Grabenhorst passed?
Jamieson Grabenhorst has passed 2 licensing exams: the Series 66 and Series 7. The earliest, the Series 66, was passed in September 2001. FINRA credited Jamieson Grabenhorst with the SIE, which began in October 2018.
Where is Jamieson Grabenhorst based?
Jamieson Grabenhorst’s registered office is in Portland, OR.
Is Jamieson Grabenhorst registered with FINRA?
No. Jamieson Grabenhorst has no current broker registration.
How can I verify Jamieson Grabenhorst’s record?
Search CRD 4362410 on the SEC’s adviser search (adviserinfo.sec.gov), which publishes Jamieson Grabenhorst’s full registration record.