Top 10 financial advisor firms in Naperville

15 SEC-registered financial advisor firms are headquartered in Naperville, IL, with $11.2B in combined regulatory assets under management. The largest by assets are Calamos Wealth Management ($5.48B), Lantz Financial ($994M) and LNS Operations ($757M).

15
Financial advisor firms: $11.2B
Their combined AUM: $340M
Median firm AUM: 8,054
Clients of the top 10

The 10 largest by assets

1
Calamos Wealth Management
RIA
$5.48B
Regulatory AUM
2
Lantz Financial
RIA
$994M
Up to 1.25%
3
LNS Operations
RIA
$757M
Up to 2.50% a year
4
Stenger Family Office
RIA
$735M
Regulatory AUM
5
DHJJ Financial Advisors
RIA
$623M
0.50% to 1.75% a year
6
Brown Wealth Management
RIA
$531M
0.75% to 1.25% a year
7
Windrock Wealth Management
RIA
$363M
0.25% to 1.50% a year
8
Left Brain Wealth Management
RIA
$340M
1.00% to 2.00% a year
9
Fiduciary Financial Partners
RIA
$293M
0.25% to 1.00% a year
10
Millington Financial Advisors
RIA
$291M
Up to 1.00% a year

Profiles of the top 10

No. 1 · RIA

Calamos Wealth Management

Calamos Wealth Management is an investment adviser based in Naperville, IL, registered with the SEC since 2007. It provides financial planning and investment management. Its clients include high-net-worth individuals, individual clients, and corporations and other businesses. Its regulatory assets under management total $5.48 billion, as filed on 23 July 2026.

Regulatory AUM: $5.48B
Clients: 4,308
Advisory staff: 39
Custodians: Fidelity
Headquarters: 2020 Calamos Court, Naperville, IL 60563-2787
Phone: 630-245-7200
Website: calamos.com

No. 2 · RIA

Lantz Financial

Lantz Financial is an investment adviser based in Naperville, IL, registered with the SEC since 2018. It provides financial planning and investment management. Its clients include high-net-worth individuals and individual clients. Its regulatory assets under management total $994 million, as filed on 30 September 2026.

Lantz Financial charges up to 1.25% for its Investment Management Services. The brochure does not state whether the rate is annual.

Regulatory AUM: $994M
Clients: 669
Advisory staff: 6
Founded: 2018
Fee schedule: Up to 1.25%
Custodians: Charles Schwab
Headquarters: 1733 Park Street, Suite 350, Naperville, IL 60563
Phone: 331-204-6230
Website: lantzteam.com

No. 3 · RIA

LNS Operations

LNS Operations is an investment adviser based in Naperville, IL, registered with the SEC since 2026. It provides financial planning and investment management. Its clients include individual clients, high-net-worth individuals and charitable organizations. Its regulatory assets under management total $757 million, as filed on 15 September 2026.

LNS Operations charges up to 2.50% a year for its Asset management.

Regulatory AUM: $757M
Clients: 612
Advisory staff: 6
Fee schedule: Up to 2.50% a year
Custodians: Fidelity
Headquarters: 1460 Bond St, Naperville, IL 60563
Phone: 630-821-6990
Website: intentgen.com

No. 4 · RIA

Stenger Family Office

Stenger Family Office is an investment adviser based in Naperville, IL, registered with the SEC since 2023. It provides financial planning and investment management. Its clients include high-net-worth individuals, individual clients, and pension and profit-sharing plans. Its regulatory assets under management total $735 million, as filed on 21 July 2026.

Regulatory AUM: $735M
Clients: 887
Advisory staff: 7
Custodians: Charles Schwab
Headquarters: Naperville Financial Center, 400 East Diehl Road, Suite 550, Naperville, IL 60563
Phone: 630-912-8295
Website: stengerfamilyoffice.com

No. 5 · RIA

DHJJ Financial Advisors

DHJJ Financial Advisors is an investment adviser based in Naperville, IL, registered with the SEC since 1992. It provides financial planning and investment management. Its clients include high-net-worth individuals, individual clients, and pension and profit-sharing plans. Its regulatory assets under management total $623 million, as filed on 13 July 2026.

DHJJ Financial Advisors charges 0.50%–1.75% a year for its Individual supervisory services.

Regulatory AUM: $623M
Clients: 431
Advisory staff: 8
Founded: 1988
Fee schedule: 0.50% to 1.75% a year
Custodians: Charles Schwab
Headquarters: 184 Shuman Boulevard, Suite 200, Naperville, IL 60563
Phone: 630-420-1360
Website: dhjjfinancial.com

No. 6 · RIA

Brown Wealth Management

Brown Wealth Management is an investment adviser based in Naperville, IL, registered with the SEC since 2023. It provides financial planning and investment management. Its clients include high-net-worth individuals, individual clients, and pension and profit-sharing plans. Its regulatory assets under management total $531 million, as filed on 11 March 2026.

Brown Wealth Management charges 0.75%–1.25% a year for its Portfolio Management & Sub-Adviser Fees.

Regulatory AUM: $531M
Clients: 450
Advisory staff: 6
Fee schedule: 0.75% to 1.25% a year
Custodians: Charles Schwab
Headquarters: 1700 Park Street, Suite 106, Naperville, IL 60563
Phone: 630-733-8434
Website: raiwealth.com

No. 7 · RIA

Windrock Wealth Management

Windrock Wealth Management is an investment adviser based in Naperville, IL, registered with the SEC since 2015. It provides investment management. Its clients include high-net-worth individuals and individual clients. Its regulatory assets under management total $363 million, as filed on 17 March 2026.

Windrock Wealth Management charges 0.25%–1.50% a year for its Wealth Management Services.

Regulatory AUM: $363M
Clients: 83
Advisory staff: 4
Founded: 2012
Fee schedule: 0.25% to 1.50% a year
Custodians: Charles Schwab
Headquarters: 225 West Jefferson Avenue, Suite 2, Naperville, IL 60540
Phone: 312-650-9593
Website: windrockwealth.com

No. 8 · RIA

Left Brain Wealth Management

Left Brain Wealth Management is an investment adviser based in Naperville, IL, registered with the SEC since 2018. It provides financial planning and investment management. Its clients include high-net-worth individuals, individual clients and pooled investment vehicles. Its regulatory assets under management total $340 million, as filed on 20 March 2026.

Left Brain Wealth Management charges 1.00%–2.00% a year for its Asset-Based Fee Schedule.

Regulatory AUM: $340M
Clients: 207
Advisory staff: 6
Founded: 2014
Fee schedule: 1.00% to 2.00% a year
Custodians: Charles Schwab, Interactive Brokers
Headquarters: 215 Shuman BLVD, #304, Naperville, IL 60563
Phone: 630-517-9300
Website: leftbrainwm.com

No. 9 · RIA

Fiduciary Financial Partners

Fiduciary Financial Partners is an investment adviser based in Naperville, IL, registered with the SEC since 2013. It provides financial planning and investment management. Its clients include high-net-worth individuals, individual clients, and pension and profit-sharing plans. Its regulatory assets under management total $293 million, as filed on 16 September 2026.

Fiduciary Financial Partners charges 0.25%–1.00% a year for its Comprehensive Wealth Management.

Regulatory AUM: $293M
Clients: 220
Advisory staff: 5
Founded: 2011
Fee schedule: 0.25% to 1.00% a year
Custodians: Charles Schwab
Headquarters: 1250 E. Diehl Road, Suite 404, Naperville, IL 60563
Phone: 630-780-1534
Website: fiduciaryfinancialpartners.com

No. 10 · RIA

Millington Financial Advisors

Millington Financial Advisors is an investment adviser based in Naperville, IL, registered with the SEC since 2022. It provides financial planning and investment management. Its clients include high-net-worth individuals and individual clients. Its regulatory assets under management total $291 million, as filed on 4 August 2026.

Millington Financial Advisors charges up to 1.00% a year for its Investment Management Fee.

Regulatory AUM: $291M
Clients: 187
Advisory staff: 5
Founded: 2011
Fee schedule: Up to 1.00% a year
Custodians: Charles Schwab
Headquarters: 55 Shuman BLVD, Suite 1050, Naperville, IL 60563
Phone: 630-922-7900

Questions about financial advisors in Naperville

How many financial advisor firms are headquartered in Naperville?

15 SEC-registered financial advisor firms report their principal office in Naperville, IL, managing $11.2B in regulatory assets between them. The other 2 advisers headquartered in the city are broker-dealers, other kinds of wealth firm, or fund and institutional managers.

Source: Form ADV Part 1A, Items 1.F, 5.D and 5.F

What is the largest financial advisor firm in Naperville?

Calamos Wealth Management, with $5.48B in regulatory assets under management on its latest Form ADV. The next largest are Lantz Financial ($994M) and LNS Operations ($757M).

Source: Form ADV Part 1A, Item 5.F

How large is a typical financial advisor firm in Naperville?

The median firm manages $340M in regulatory assets. That is the midpoint of the 15 firms headquartered in Naperville.

Source: Form ADV Part 1A, Item 5.F

How much do financial advisors in Naperville charge?

Of the 10 largest firms, 8 publish an asset-based fee schedule for their main service in their brochure. The highest rate in those schedules runs from 1.00% to 2.50% of assets, depending on the firm; each firm's fee is in its profile above.

Source: Form ADV Part 2A brochures, Item 5

How can I check a financial advisor's record in Naperville?

Search the firm or the person on the SEC's Investment Adviser Public Disclosure site, adviserinfo.sec.gov, which shows registrations, Form ADV filings and any disclosures. Each firm profile in this directory links its SEC record.

Source: SEC Investment Adviser Public Disclosure

How is this list ordered?

By regulatory assets under management as filed on Form ADV, largest first. A firm is included when its principal office is in the city and most of its client assets belong to individuals and its type is RIA, which leaves out broker-dealers, wirehouses, RIA networks, digital advice, bank, insurance and family-office firms. A firm with only a branch office here is listed in its own headquarters city.

Source: Niva directory methodology

Naperville has 15 financial advisor firms; see every adviser in the city →

The 10 largest by assets

Profiles of the top 10

Questions about financial advisors in Naperville

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