Top 10 fastest-growing RIAs in Illinois (2026)

Sort by asset growthHow they grew

#	Firm	Assets, end of 2023 → 2025	Growth	Advisory staff	Net advisors, 12 mo	How they grew	Main custodian	Score
1	Rothschild Wealth LLC OAKBROOK	$615.6M → $1.7B	2.76× 2.1× typical	9 → 23	+5	Organic or recruited	Schwab	97.8
2	Spiderrock Advisors, LLC CHICAGO	$4.85B → $9.83B	2.03× 1.5× typical	10 → 43	+4	Organic	Fidelity	96.1
3	Vestgen Advisors, LLC CHICAGO	$660.3M → $6.67B	10.09× 7.5× typical	30 → 58	+1	Organic	LPL Financial	93.2
4	Creekmur Asset Management, LLC MORTON	$410.6M → $800M	1.95× 1.5× typical	10 → 15	+2	Organic or recruited	Schwab	90.9
5	Wellment Financial ELMHURST	$154.3M → $312.7M	2.03× 1.5× typical	8 → 11	+2	Organic	Fidelity	90.8
6	Savant Wealth Management ROCKFORD	$28.6B → $55.61B	1.94× 1.4× typical	185 → 238	+78	Organic or recruited	Schwab	90.7
7	Iht Wealth Management LLC CHICAGO	$4.82B → $9.8B	2.03× 1.5× typical	146 → 153	+9	Organic	LPL Financial	86.6
8	Calamos Wealth Management LLC NAPERVILLE	$3.33B → $5.48B	1.64× 1.2× typical	33 → 39	+4	Organic or recruited	Fidelity	83.8
9	Cresset Asset Management, LLC CHICAGO	$52.51B → $78.94B	1.5× 1.1× typical	133 → 187	+27	Organic	Pershing	83.2
10	Clark Wealth Partners, LLC O'FALLON	$169.7M → $259.9M	1.53× 1.1× typical	2 → 4	+1	Organic or recruited	Schwab	82.8

Score: 0 to 100, from each firm's percentile among 5,989 RIAs nationally. See the national top 100 and the tech stacks they run.

How we ranked

Who's in: 5,989 SEC-registered RIAs serving individuals, based in the US, with $100M+ in assets, 25+ individual clients and 2+ advisory staff, that filed their 2026 annual Form ADV. Bank and broker-dealer networks (more advisors moving than advisory staff) are left out.
Asset growth (half the score): regulatory assets at the end of 2025 (2026 annual Form ADV) over the end of 2023 (the firm's last 2024 filing). Firms update this number once a year, in the annual amendment. The typical firm grew 1.34×, which is mostly the market. Growth over 3× counts as 3×, so one big merger can't decide the list (acquisitions aren't reported on Form ADV).
Advisory staff growth (a quarter): employees giving investment advice (Item 5.B(1)), over the same two years.
Net advisors (a quarter): registered advisors who joined the firm in the last 12 months minus those who left, from SEC registration records.
Each is a percentile among the firms that are in, and only firms whose assets grew faster than the typical firm's are listed. Assets include market gains and any acquisitions, so a high rank is a signal to look closer, not proof of organic growth.
How they grew (an estimate): each firm's gain, split four ways. Typical: what the typical firm grew. Acquired: firms most of whose advisors moved to it (half or more, and the old firm stopped filing, or three-quarters or more), at their last reported assets; a buyer that keeps an acquired firm filing on its own isn't seen, so this is a floor. Joined (hatched): advisors who moved in from other firms, at up to their old firm's assets per advisor ($150M at most), since a new hire may bring no clients at all. Organic: the rest, new clients and existing clients' money. “Organic” firms are organic even if every joiner brought a full book.
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The fastest-growing RIAs in Illinois.

How we ranked