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Marcus Welnel

Investment adviser representative at SGL Investment Advisors in Missoula, MT

Investment adviser and broker registrationsUpdated

Marcus Welnel is an investment adviser representative at SGL Investment Advisors, Inc., an investment adviser managing $440M, and works from its Missoula, MT office. Marcus Welnel has been registered through SGL Investment Advisors since 12 February 2024, has 3 years in the industry across 3 firms and has passed the SIE, Series 7TO and Series 66.

3
Years in industry
2
Years at firm
3
Adviser firms
3
States registered

From the IAPD record, checked 23 October 2026SEC record

Career

Marcus Welnel has been an investment adviser representative at SGL Investment Advisors since February 2024, and is not listed among the firm’s executive officers or direct owners.

SGL Investment Advisors, Inc. is a Missoula, MT firm with $440M under management, 883 clients and 6 advisers in one office, as of its September 2026 filing.

Marcus Welnel’s longest registration is the current one, 2 years at SGL Investment Advisors since 2024. Before joining SGL Investment Advisors in 2024, Marcus Welnel was registered through Park Avenue Securities LLC.

  1. S.G. Long & CompanyAlso current
    – present · 2 years
    Missoula, MT · Adviser representative · Firm CRD 47511
  2. – present · 2 years
    Missoula, MT · Adviser representative · Firm CRD 145167
  3. Park Avenue Securities LLC
    – · under a year
    Missoula, MT · Adviser representative · Firm CRD 46173

Credentials and registrations

Investment adviser representative registrations

Marcus Welnel is registered as an investment adviser representative in 3 states. The first approvals date from February 2024; the most recent is Texas, in February 2025.

  • MontanaSince 15 February 2024
  • TexasSince 28 February 2025
  • WashingtonSince 12 February 2024

Examinations

Series 6611 October 2023
Name
Uniform Combined State Law Examination
Series 7TO3 October 2023
Name
General Securities Representative Examination
SIE24 May 2023
Name
Securities Industry Essentials Examination

Key facts

Full name
Marcus John Welnel
CRD
7741521
Firm
SGL Investment Advisors · CRD 145167
Office
283 W. FRONT STREET SUITE 302, Missoula, MT 59802-4328
Registration
Investment adviser and broker registrations
In the industry since
October 2023
Disciplinary history
Not yet shown here · SEC record · BrokerCheck

Common questions

Where does Marcus Welnel work?

Marcus Welnel is an investment adviser representative registered through SGL Investment Advisors, Inc. since February 2024, and is not listed among the firm’s executive officers or direct owners.

Source: IAPD individual record, checked 23 October 2026

Is Marcus Welnel a financial advisor?

Yes. Marcus Welnel has a current investment-adviser registration in Montana, Texas and Washington, through SGL Investment Advisors since February 2024.

Source: IAPD individual record, checked 23 October 2026

How many years of experience does Marcus Welnel have?

Marcus Welnel has 3 years in the financial industry, since October 2023, across 3 adviser firms.

Source: IAPD individual record, checked 23 October 2026

What exams has Marcus Welnel passed?

Marcus Welnel has passed 3 licensing exams: the SIE, Series 7TO and Series 66. The earliest, the SIE, was passed in May 2023.

Source: IAPD individual record, checked 23 October 2026

Where is Marcus Welnel based?

Marcus Welnel’s registered office is in Missoula, MT.

Source: IAPD individual record, checked 23 October 2026

Is Marcus Welnel registered with FINRA?

Yes. Marcus Welnel has a current broker registration, under CRD 7741521.

Source: FINRA BrokerCheck

How can I verify Marcus Welnel’s record?

Search CRD 7741521 on the SEC’s adviser search (adviserinfo.sec.gov) and FINRA’s broker search (brokercheck.finra.org), which publish Marcus Welnel’s full registration record.

Source: IAPD individual record, checked 23 October 2026

Leadership at SGL Investment Advisors

Sources

  1. IAPD individual record, CRD 7741521, checked 23 October 2026. Registration status, employment history and examinations.
  2. Form ADV Part 1A, Schedules A and B of SGL Investment Advisors, Inc., filed 25 September 2026. Executive officers and direct owners; this person is not among them.