Top 8 financial advisor firms in Northbrook

8 SEC-registered financial advisor firms are headquartered in Northbrook, IL, with $3.81B in combined regulatory assets under management. The largest by assets are Arthur M. Cohen & Associates ($1.11B), Trifecta Capital Advisors ($927M) and Iron Financial ($489M).

8
Financial advisor firms: $3.81B
Their combined AUM: $345M
Median firm AUM: 1,237
Clients of the top 8

The 8 largest by assets

1
Arthur M. Cohen & Associates
RIA
$1.11B
0.75% to 1.00%
2
Trifecta Capital Advisors
RIA
$927M
Up to 1.25% a year
3
Iron Financial
RIA
$489M
Regulatory AUM
4
Oak Wealth Advisors
RIA
$374M
0.20% to 0.90% a year
5
Mendel Money Management
RIA
$317M
0.60% to 1.00% a year
6
Main Street Investment Advisors
RIA
$250M
0.50% to 1.00% a year
7
Boon Capital Advisors
RIA
$185M
Regulatory AUM
8
Avocet Capital Management
RIA
$158M
0.50% to 1.25% a year

Profiles of the top 8

No. 1 · RIA

Arthur M. Cohen & Associates

Arthur M. Cohen & Associates is an investment adviser based in Northbrook, IL, registered with the SEC since 1990. It provides financial planning and investment management. Its clients include high-net-worth individuals, individual clients and charitable organizations. Its regulatory assets under management total $1.11 billion, as filed on 17 April 2026.

Arthur M. Cohen & Associates charges 0.75%–1.00% for its Equity-only or balanced accounts. The brochure does not state whether the rate is annual.

Regulatory AUM: $1.11B
Clients: 191
Advisory staff: 2
Fee schedule: 0.75% to 1.00%
Custodians: Pershing, Charles Schwab
Headquarters: 1033 Skokie Boulevard, Ste 200, Northbrook, IL 60062
Phone: 847-480-2990

No. 2 · RIA

Trifecta Capital Advisors

Trifecta Capital Advisors is an investment adviser based in Northbrook, IL, registered with the SEC since 2022. 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 $927 million, as filed on 26 March 2026.

Trifecta Capital Advisors charges up to 1.25% a year for its Investment Management.

Regulatory AUM: $927M
Clients: 159
Advisory staff: 3
Fee schedule: Up to 1.25% a year
Minimum account: $1,000,000
Custodians: Charles Schwab
Headquarters: 400 Skokie BLVD, Suite 455, Northbrook, IL 60062
Phone: 18474952464
Website: trifectacapitaladvisors.com

No. 3 · RIA

Iron Financial

Iron Financial is an investment adviser based in Northbrook, IL, registered with the SEC since 1994. 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 $489 million, as filed on 1 July 2026.

Regulatory AUM: $489M
Clients: 246
Advisory staff: 9
Founded: 1994
Custodians: Charles Schwab
Headquarters: 630 Dundee Road, Suite 300, Northbrook, IL 60062
Phone: 847-715-3200
Website: ironfinancial.com

No. 4 · RIA

Oak Wealth Advisors

Oak Wealth Advisors is an investment adviser based in Northbrook, IL, registered with the SEC since 2017. It provides financial planning and investment management. Its clients include high-net-worth individuals, individual clients and charitable organizations. Its regulatory assets under management total $374 million, as filed on 25 March 2026.

Oak Wealth Advisors charges 0.20%–0.90% a year for its Investment management services.

Regulatory AUM: $374M
Clients: 186
Advisory staff: 3
Founded: 2008
Fee schedule: 0.20% to 0.90% a year
Custodians: Charles Schwab
Headquarters: 1363 Shermer RD. Ste. 208, Northbrook, IL 60062
Phone: 847-945-8888
Website: oakwealth.com

No. 5 · RIA

Mendel Money Management

Mendel Money Management is an investment adviser based in Northbrook, IL, registered with the SEC since 1989. 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 $317 million, as filed on 2 September 2026.

Mendel Money Management charges 0.60%–1.00% a year for its Asset Management.

Regulatory AUM: $317M
Clients: 211
Advisory staff: 4
Founded: 1989
Fee schedule: 0.60% to 1.00% a year
Custodians: William Blair & Company, Charles Schwab
Headquarters: 1200 Shermer RD Ste 216, Northbrook, IL 60062
Phone: 847-564-0970
Website: mendelmoney.com

No. 6 · RIA

Main Street Investment Advisors

Main Street Investment Advisors is an investment adviser based in Northbrook, IL, registered with the SEC since 2018. It provides financial planning and investment management. Its clients include high-net-worth individuals, charitable organizations and individual clients. Its regulatory assets under management total $250 million, as filed on 20 January 2026.

Main Street Investment Advisors charges 0.50%–1.00% a year for its Assets under management fee.

Regulatory AUM: $250M
Clients: 144
Advisory staff: 3
Founded: 2007
Fee schedule: 0.50% to 1.00% a year
Minimum account: $250,000
Custodians: Fidelity
Headquarters: 707 Skokie BLVD, Suite 190, Northbrook, IL 60062
Phone: 847-480-7055
Website: mainstinvest.com

No. 7 · RIA

Boon Capital Advisors

Boon Capital Advisors is an investment adviser based in Northbrook, IL, registered with the SEC since 2024. It provides financial planning and investment management. Its clients include high-net-worth individuals and individual clients. Its regulatory assets under management total $185 million, as filed on 11 March 2026.

Regulatory AUM: $185M
Clients: 60
Advisory staff: 1
Custodians: Charles Schwab
Headquarters: 666 Dundee Road, Suite 1701, Northbrook, IL 60062-2702
Phone: 224-326-2044
Website: booncap.com

No. 8 · RIA

Avocet Capital Management

Avocet Capital Management is an investment adviser based in Northbrook, 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 $158 million, as filed on 19 May 2026.

Avocet Capital Management charges 0.50%–1.25% a year for its Asset-Based Fee Schedule.

Regulatory AUM: $158M
Clients: 40
Advisory staff: 2
Fee schedule: 0.50% to 1.25% a year
Minimum account: $500,000
Custodians: Fidelity
Headquarters: 1363 Shermer Road, Suite 200, Northbrook, IL 60062
Phone: 312-925-0152
Website: avocetcapital.com

Questions about financial advisors in Northbrook

How many financial advisor firms are headquartered in Northbrook?

8 SEC-registered financial advisor firms report their principal office in Northbrook, IL, managing $3.81B in regulatory assets between them. The other 3 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 Northbrook?

Arthur M. Cohen & Associates, with $1.11B in regulatory assets under management on its latest Form ADV. The next largest are Trifecta Capital Advisors ($927M) and Iron Financial ($489M).

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

How large is a typical financial advisor firm in Northbrook?

The median firm manages $345M in regulatory assets. That is the midpoint of the 8 firms headquartered in Northbrook.

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

How much do financial advisors in Northbrook charge?

Of the 8 largest firms, 6 publish an asset-based fee schedule for their main service in their brochure. The highest rate in those schedules runs from 0.90% to 1.25% 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 Northbrook?

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

Northbrook has 8 financial advisor firms; see every adviser in the city →

The 8 largest by assets

Profiles of the top 8

Questions about financial advisors in Northbrook

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