findmyFA.app
The register of American financial advisors

Home / Firms / Mainstreet Ria LLC

Mainstreet Ria LLC

CRD 309150  ·  O'fallon, MO  ·  $446.4M AUM

RIA

Firm record

As recorded in SEC IAPD

Firm CRD
309150
SEC number
801-121454
Firm type
RIA
Assets under management
$446.4M as of Feb 12, 2026
Website
tiktok.com/@mainstreet_ria_llc ↗
Phone
(888) 801-0325
Address
6700 Keaton Corporate Parkway, O'fallon, MO, 63368

Advisors at this firm

3 in our index · page 1 of 1

  • Richard Lee CountsCRD 2428369 · O'fallon, MO
    IA RegisteredRegistration inactive
    Disclosure event(s) on record
  • Robert Steven OldhamCRD 2288379 · O'fallon, MO
    IA RegisteredRegistration inactive
  • Nicholas S OldhamCRD 5379115 · O'fallon, MO
    IA RegisteredRegistration inactive
1–3 of 3

Source & corrections

Where this page comes from

Advisor registration data on this site is reproduced from the SEC's Investment Adviser Public Disclosure (IAPD) system and FINRA's BrokerCheck. Those systems are the official records; this site is not. We do not alter the factual content of the records we reproduce.

SEC IAPD record for firm CRD 309150 ↗ FINRA BrokerCheck record for firm CRD 309150 ↗ BrokerCheck Terms of Use ↗ Report a data error on this page →

Data compiled Aug 20, 2026. Source: ADV_BULK. Your use of BrokerCheck data reproduced here is subject to FINRA's Terms of Use.

Preview release — partial coverage. This is a public-records lookup tool, not investment advice, not a recommendation, and not an endorsement of any advisor. Registration status shown here is a copy of a government record and may be out of date; always confirm against SEC IAPD and FINRA BrokerCheck before acting.