MAINSTREET INVESTMENT ADVISORS LLC
C22
CRD 146615·SEC 801-68930·CHICAGO, IL
AUM
$5.86B
$1B+
Est. Revenue
$58.6M
@ 1% on AUM
Est. EBITDA
$17.6M
@ 30% margin
Est. Deal Value
$140.5M
@ 8× EBITDA
Identity
Registrations & legal identity
Economics
AUM trajectory
'20 · $1.10B
'21 · $5.97B
'22 · $7.78B
'23 · $9.93B
'25 · $5.41B
'26 · $5.86B
'20'26
$1.10B → $5.86B▲ +432%
Operations
Advisory staff (5-yr trend)
'20 · 21 advisors
'21 · 24 advisors
'22 · 27 advisors
'23 · 26 advisors
'25 · 6 advisors
'26 · 6 advisors
'20'26
21 advisors → 6 advisors▼ -71%
Branches
—
Custodian & Brokerage
Services offered
Portfolio mgmt — individualsPortfolio mgmt — businessesPublication of periodicals
Filings
ADV-W filed at
—
Compliance
Trademark
—
Additional signalsExpand ▾
Ownership & succession ★
Who controls the firm + pre-computed succession flags
Availability / M&A ★
Already-acquired = skip; deal comps
Web presence ★
Stale website = winding down
Retirement-plan book (Form 5500) ★
401(k)/plan business — cross-sell value
SEC EDGAR
Compliance & brand
All other collected signals (11)
Everything else we've pulled for this record, not yet curated into a section.
Edgar Addresses
Mailing
120 N LASALLE STREET33RD FLOORCHICAGO, IL 60602
Business
120 N LASALLE STREET33RD FLOORCHICAGO, IL 60602
Edgar Recent Filings
13F-HR2026-05-11 · 0001765380-26-000200
13F-HR2026-02-10 · 0001765380-26-000089