Mark Allen Thompson
Investment Adviser Representative at Harbour Investments, Inc.
Professional summary
Compiled by AdvisorFinder from public regulatory records. This advisor has not provided a personal biography.
Mark Allen Thompson is an investment adviser representative with Harbour Investments, Inc. in Greenfield, WI, where they have been registered since 2017. They have worked in the securities industry since 2001 and have been registered with 3 firms, including Transamerica Financial Advisors, Inc. and Investment Advisors International, Inc. They have passed 4 industry qualification exams, including the Series 65 (investment adviser), Series 63 (state securities agent), and Series 6 (investment company and variable products). They are registered to provide investment advice in Wisconsin.
Office
Advisors at this office: 8
Branch office as filed with FINRA, counting current advisors in the directory who work there.
Registrations & licenses
- Investment adviser:
- Wisconsin
- Broker:
2 states and territories
Michigan, Wisconsin
Registration requirements vary by state and service. Contact the advisor's firm to confirm whether they can serve you.
Financial-firm registration history
Registration history as reported to FINRA, most recent first.
Reported employment history
Employment the advisor reported on their SEC/FINRA filings, as of October 8, 2026. It may not be a complete history.
- World Financial GroupJun 2001 – Dec 2017Madison, WI
- Transamerica Financial Advisors, IncJan 2012 – Dec 2017Madison, WI
- Harbour Investments, IncDec 2017 – no end date reportedMadison, WI
- Clearstep FinancialDec 2017 – no end date reportedGreenfield, WI
Official records & sources
Data as of June 26, 2026 · Source: SEC IAPD & FINRA BrokerCheck
About Harbour Investments, Inc.
These details describe the firm overall. Individual advisors' services, clients, and fees may differ.
Fee arrangements the firm reports
- Percentage of assets under management
- Commissions
- Hourly
- Fixed fee
- Subscription fee
- Firm account minimum
- $5,000 (waivable)
Arrangements the firm reports on its Form ADV; this advisor may not charge every fee listed. Estimated from the firm's Form ADV — individual terms may differ. Not a quote.
Services the firm offers
Client types the firm serves
Firm assets under management
$5B–$25B
- Firm disclosures (Form ADV)
- Disciplinary history reportedVerify on SEC IAPD
- Advisors listed on AdvisorFinder:
- 242
- Offices listed on AdvisorFinder:
- 26
- Main office:
- Madison, WI
- SEC file number:
- 801-29185
Counts reflect AdvisorFinder directory coverage, not necessarily the firm's complete network.
Form ADV data as of September 29, 2026
View full firm profileOther advisors at Harbour Investments, Inc.
Showing 12 of 242 in the directory
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This profile was compiled and published by AdvisorFinder as editorial content using publicly available information from the SEC's IAPD database and FINRA BrokerCheck. Mark Allen Thompson has not reviewed, approved, or endorsed this profile and is not responsible for its accuracy. Regulatory records change over time — always verify the current record directly on BrokerCheck or SEC.gov before making any decision. AdvisorFinder may be compensated for referrals generated through this page.
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