Rialytix insights

Top RIA Firms in Oak Brook, Illinois

Explore the top 25 Registered investment advisers, single family offices, multi-family offices and private wealth management firms headquartered in Oak Brook, Illinois. This hub covers 10 matching firms with $4.6B in total reported AUM and median AUM of $377.6M.

Firms

Matching current profiles

Total AUM

$4.6B

Reported regulatory AUM

Median AUM

$377.6M

Across firms with AUM

Largest firm

$1.2B

Chicago Oakbrook Financial Group

Filter by segmentOver $1T $100B to $999B $10B to $99B $1B to $9B $500M to $999M $100M to $500M Below $100M New York California Texas New York, NY Chicago, IL Boston, MA International RIAs

Search RIA markets

Search by city or state

Find state and published city hubs without returning to the main insights page.

Top RIAs discovered by AUM

Compare RIAs using AUM growth, employee and account signals

Firm	Location	Current AUM↓	1YR AUM↕	3YR AUM↕	5YR AUM↕	Total AUM↕	Employee Signal↕	Account Signal↕
1. Chicago Oakbrook Financial Group CRD 333344 · Limited Liability Company	OAK BROOK, IL	$1.2B Feb 2026	—	—	—	+$301.9M+33.3%	+1 employees+5.6% over 1Y	+3,229 accounts+289.3% over Total
2. Huizenga Capital Management, LLC CRD 156524 · Limited Liability Company	OAK BROOK, IL	$996.7M Mar 2026	+$221.9M+28.6%	+$164.0M+19.7%	+$417.8M+72.2%	+$560.4M+128.4%	+1 employees+8.3% over 3Y	+5 accounts+31.3% over 3Y
3. Rock Island Capital CRD 161623 · Limited Liability Company	OAK BROOK, IL	$636.6M Mar 2026	+$4.8M+0.8%	+$29.6M+4.9%	+$203.7M+47.0%	+$518.7M+440.3%	+2 employees+25.0% over 3Y	+1 accounts+8.3% over 3Y
4. North Branch Capital Management, L.p. CRD 307344 · Limited Partnership	OAK BROOK, IL	$467.5M Apr 2026	+$35.3M+8.2%	+$233.2M+99.5%	+$284.1M+154.9%	+$223.9M+91.9%	+1 employees+14.3% over 3Y	+1 accounts+25.0% over 3Y
5. Watershed Private Wealth CRD 316408 · Limited Liability Company	OAK BROOK, IL	$413.7M Mar 2026	+$111.7M+37.0%	+$227.9M+122.7%	—	—	+1 employees+50.0% over 3Y	+205 accounts+58.6% over 3Y
6. Ergawealth Advisors, INC. CRD 290030 · Corporation	OAK BROOK, IL	$341.5M Mar 2026	+$24.8M+7.8%	+$140.9M+70.3%	—	+$172.7M+102.3%	-4 employees-44.4% over 3Y	+150 accounts+16.2% over 3Y
7. Stonebridge Wealth Management LLC CRD 285693 · Limited Liability Company	OAK BROOK, IL	$283.3M May 2026	+$51.2M+22.1%	+$101.5M+55.8%	+$125.0M+78.9%	+$177.8M+168.7%	0 employees+0.0% over 3Y	+127 accounts+14.3% over 3Y
8. Kuhn Capital Partners CRD 283028 · Limited Liability Company	OAK BROOK, IL	$169.9M Mar 2026	+$44.0M+35.0%	+$138.4M+439.9%	+$138.4M+439.9%	+$165.2M+3514.8%	-4 employees-44.4% over 3Y	-65 accounts-19.3% over 3Y
9. Dillow Wealth Management LLC CRD 313192 · Limited Liability Company	OAK BROOK, IL	$106.3M Feb 2026	-$62.3M-37.0%	+$3.3M+3.2%	—	—	+1 employees+100.0% over 3Y	+129 accounts+716.7% over 3Y
10. Tall Pines Capital, LLC CRD 286089 · Limited Liability Company	OAK BROOK, IL	$25.0M May 2026	-$5.0M-16.8%	+$6.2M+33.0%	+$12.7M+102.5%	+$22.9M+1070.7%	0 employees+0.0% over 3Y	+35 accounts+53.8% over 3Y

Methodology

Top firms are ranked by their current AUM values. Growth $ and % values compare current reported AUM, employee count, and account counts against the latest historical filing on or before the 1 year, 3 year, and 5 year lookback dates, plus the earliest available historical filing for total growth. Metrics may show a dash where historical filings are unavailable or not reliable enough for the lookback period. This is not investment advice.