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Mainstreet RIA LLC

Mainstreet RIA LLC. CRD 309150

Mainstreet RIA LLC logo

CRD: 309150

Mainstreet RIA LLC

O'fallon, MO, 63368
8888010325
$446.4M Total AUM
$446.4M Disc. AUM
13.8% 3Y CAGR
3 Employees
134 ADV. Clients
5 yrs Firm Age

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Firm Details

Custodian
Charles Schwab & Company · LPL Financial · Merrill Lynch
Clients
Retail and Institutional
Platforms
AtlasLegacy
Established Date
07-06-2020
Office Locations
1

Office Locations

6700 Keaton Corporate Parkway Suite 102 O'fallon MO

About Mainstreet RIA LLC

Mainstreet RIA LLC provides fiduciary retirement plan advisory services to employers/plan sponsors, helping improve 401(k) offerings and keep participant needs first. The firm benchmarks plan fees and services, sources and compares recordkeeper quotes, and supports recordkeeper transitions. Ongoing service includes plan reviews, IPS development, legislative updates (including SECURE Act 2.0 options), and quarterly fund monitoring with custom pass/fail screening against peer groups.

Team overview

-- AVG AGE
$148.8M AVG AUM / ADVISOR
$3.3M AVG AUM / CLIENT
5.7 yrs AVG TENURE
3 Employees
3 Advisory Reps
3 RIA Reps
5yrs Firm Age

Insights

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Asset Classes

North focus Meridian

Client Personas

Prime vector

Custodian

Peak Insight zenith Horizon

Investment Themes

Peak Ridge summit Vector Meridian ember

Investment Vehicles

Ember foundation

Services

Momentum Timber pioneer Ember Legacy prime Momentum Signal North Summit Pioneer horizon Focus Harbor prime Optima

Technology

Signal fusion Wave

Owner & Executives

R

RICHARD LEE COUNTS

INVESTMENT ADVISOR REPRESENTATIVE, Managing Partner, Retirement Plan Advisor

CRD
#2428369
Ownership
25% but less than 50%
(884) 965-6813
momentum.north@momentumcapital.com
in linkedin.com/in/prime-focus
Nicholas S Oldham

Nicholas S Oldham

Chief Compliance Officer, INVESTMENT ADVISOR REPRESENTATIVE, Managing Partner

CRD
#5379115
Ownership
25% but less than 50%
(884) 411-7724
alpha.optima@atlascapital.com
in linkedin.com/in/atlas-element
E

Ember zenith

Foundation element

CRD
#52750
Ownership
43.0%
(880) 570-9182
vertex.signal@vertexcapital.com
in linkedin.com/in/value-harbor

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Contacts

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Assets Under Management

Total AUM
Discretionary
Non-Discretionary
08-30-2022
10-13-2023
07-16-2024
01-15-2025
02-12-2026
Category Assets AVG. Account size
Discretionary $446,355,239 $2,166,773
Non-Discretionary $0 --
Total $446,355,239 $2,166,773

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Separately Managed Accounts

Total SMA Asset: $446,355,239

$446.4M Total SMA
Public Funds:
21.8%
Other:
10.3%
U.S. Government/Agency:
32.4%
Equity - Exchange:
35.5%
Asset class Assets Assets %
Public Funds $565,022,450 21.8%
Other $266,960,149 10.3%
U.S. Government/Agency $839,758,137 32.4%
Equity - Exchange $920,105,367 35.5%
Total $2,591,846,103 100.0%

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