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MAINSTREET ADVISORS
Legal name: MAINSTREET INVESTMENT ADVISORS LLC
CRD 146615File 801-68930
APPROVED
Retail clients
Filing as of Mar 27, 2026
Feed vintage Aug 17, 2026
Regulatory AUM
$5.86B
Top 25% of cohort (national)
Discretionary AUM
$963.2M
Non-discretionary $4.89B
Clients
58
5,636 accounts
Employees
26
Top 25% of cohort in IL
Identity & registration
ADV Item 1- Organization form
- Limited Liability Company
- Firm type
- Registered
- SEC region
- CHRO
- Registration date
- Mar 12, 2008
- Principal office
- 120 N. LASALLE STREET, SUITE 3300, CHICAGO, IL, 60602-2424
- Phone
- 312-223-0270
Assets & accounts
ADV Item 5F- Total regulatory AUM
- $5.86B
- Discretionary AUM
- $963.2M
- Non-discretionary AUM
- $4.89B
- Discretionary accounts
- 747
- Non-discretionary accounts
- 4,889
- Total accounts
- 5,636
- AUM per client
- $101.0M
Clients by type
ADV Item 5D| Client type | Clients | AUM |
|---|---|---|
| High net worth individuals | 2 | $3.1M |
| Banking or thrift institutions | 56 | $5.85B |
Compensation & activities
ADV Items 5E, 5GCompensation
- Fixed fees
- A percentage of assets under your management
Advisory activities
- Publications
- Portfolio management for businesses
- Portfolio management for individuals and/or small businesses
Custody
ADV Item 9- Firm Custody Cash
- No
- Firm Custody Assets
- No
- Firm Custody Clients
- No
- Firm Custody Securities
- No
- Related Person Custody Cash
- No
- Related Person Custody Assets
- No
- Related Person Custody Clients
- No
- Related Person Custody Securities
- No
Disclosure events
ADV Item 11This firm answered no to every Item 11 disclosure question in this filing.
Filed changes
| Date | Field | From | To |
|---|---|---|---|
| Aug 12, 2026 | Registration | — | APPROVED |
Every value above is reproduced from this firm's Form ADV filing. Fields the firm left blank are shown as “Not reported” rather than filled in from other sources.