SourcingSourcing

MAINSTREET RIA LLC

C41
CRD 309150·SEC 801-121454·O'FALLON, MO
AUM
$446.4M
$100M-$500M
Est. Revenue
$4.5M
@ 1% on AUM
Est. EBITDA
$1.3M
@ 30% margin
Est. Deal Value
$10.7M
@ 8× EBITDA

Identity

Registrations & legal identity

Legal name
MAINSTREET RIA LLC
CRD
309150
SEC file #
801-121454
EIN
—
DBA names
—

Economics

AUM
$446.4M
AUM band
$100M-$500M
AUM trajectory
'22'26
$287.4M → $446.4M▲ +55%
Client mix
Individuals Other104
Individuals High Net Worth23
Pension Profit Sharing Plans5

Operations

Employees (total)
3
Advisory staff (per ADV)
3
Advisory staff (5-yr trend)
'22'26
3 advisors → 3 advisors▬ 0%
Primary office
O'FALLON MO
Branches
—

Custodian & Brokerage

Primary custodian
Charles Schwablow confidence
Services offered
Financial planningPortfolio mgmt — individualsPension consultingEducational Seminars Workshops
Fee basis
% of AUMHourly chargesFixed fees

Filings

Latest ADV filing
02/12/2026
ADV-W filed at
—
Website
tiktok.com/@mainstreet_ria_llc

Compliance

Disclosures (firm)
0
Trademark
—
Additional signalsExpand ▾

Ownership & succession ★

Who controls the firm + pre-computed succession flags

Top Owner Name
COUNTS, RICHARD, LEE
Top Owner Pct
37.5
Top Owner Entity Kind
I
Owner Count
3
Control Persons
COUNTS, RICHARD, LEE
Oldham, Nicholas, S
Solo Advisor Indicator
No
Succession Risk Solo Owner
No
Is Parent Owned Subsidiary
No

Availability / M&A ★

Already-acquired = skip; deal comps

Adv W Filed
No

Web presence ★

Stale website = winding down

Web Signal Quality
social_url_excluded:tiktok.com

Retirement-plan book (Form 5500) ★

401(k)/plan business — cross-sell value

Retirement Plan Book
No
Form 5500 Plan Count
1
Form 5500 Total Compensation
18,904
Form 5500 Compensation Trajectory 3y
202518,904
Form 5500 Plan Count Trajectory 3y
20251
Schedule C Total Compensation
18,904
Schedule C Service Provider Rows
1

SEC EDGAR

Edgar Registered
No

Local market & wealth

Rank targets by how wealthy the local market is

Soi High Wealth Score
0.3784
Soi Zip Pct 200k Plus
0.1194
Soi Zip Returns 200k Plus
2,670
Soi Zip Total AGI
2,348,646
Fdic Zip Total Deposits
11,216,763,000
Fdic Zip Branch Count
311
Fdic Zip Top Banks
Bank of America, National Association
First Bank

Compliance & brand

Firm Registration Status
active

All other collected signals (19)

Everything else we've pulled for this record, not yet curated into a section.

Adv W Recently Filed
No
Bc Firm Active Bc Count
0
Bc Firm Active IA Count
3
Bc Firm IAR Count
3
Custodian Candidates
Full
Charles Schwab6
E*trade4
Fdic Zip Branches Raw
Jefferson Bank and Trust CompanyO Fallon, MO
Reliance BankO Fallon, MO
Fdic Zip HHI
785.99
Fdic Zip Top Bank Share Pct
21.53
Fdic Zip Year
2025
Firm Has Custody
No
Mailing Office Differs
No
Soi Year
2022
Soi Zip Distribution
Stub 1
AGI57,320
Returns4,920
Stub 2
AGI139,301
Returns3,770
Stub 3
AGI176,000
Returns2,840
Soi Zip Total Business Income
55,026
Soi Zip Total Cap Gains
59,894
Soi Zip Total Dividends
29,602
Soi Zip Total Returns
22,360
Top Owner CRD
2428369
Trust Company Affiliate
No

People (3)

3
OLDHAM, ROBERT, STEVEN
IAR · Direct Owner · 37.5%
2288379
Oldham, Nicholas, S
IAR · Direct Owner · 37.5%
5379115
COUNTS, RICHARD, LEE
IAR · Direct Owner · 37.5%
2428369