Top 10 financial advisor firms in Westlake Village

20 SEC-registered financial advisor firms are headquartered in Westlake Village, CA, with $15.5B in combined regulatory assets under management. The largest by assets are One Capital Management ($8.53B), Manchester Financial ($1.05B) and Alliance Advisory & Securities ($687M).

20
Financial advisor firms: $15.5B
Their combined AUM: $255M
Median firm AUM: 7,001
Clients of the top 10

The 10 largest by assets

1
One Capital Management
RIA
$8.53B
1.00% to 1.95% a year
2
Manchester Financial
RIA
$1.05B
Up to 1.25% a year
3
Alliance Advisory & Securities
RIA
$687M
Regulatory AUM
4
Cruden Bay Investment Management
RIA
$663M
Up to 2.00% a year
5
FMB Wealth Management
RIA
$616M
0.40% to 1.00% a year
6
Alteri Wealth
RIA
$566M
Up to 1.50% a year
7
Oak Asset Management
RIA
$414M
Up to 1.50% a year
8
Williams & Novak Wealth Management
RIA
$343M
Regulatory AUM
9
Sherwood Financial Partners
RIA
$294M
Regulatory AUM
10
Our Wealth Guides
RIA
$258M
0.65% to 1.20% a year

Profiles of the top 10

No. 1 · RIA

One Capital Management

One Capital Management is an investment adviser based in Westlake Village, CA, registered with the SEC since 2001. It provides financial planning and investment management. Its clients include high-net-worth individuals, other investment advisers and individual clients. Its regulatory assets under management total $8.53 billion, as filed on 16 August 2026.

One Capital Management charges 1.00%–1.95% a year for its Wealth Management Investment Services.

Regulatory AUM: $8.53B
Clients: 3,535
Advisory staff: 55
Fee schedule: 1.00% to 1.95% a year
Custodians: Charles Schwab, National Bank Independent Network
Headquarters: 3075 Townsgate Road, Suite 350, Westlake Village, CA 91361
Phone: 805-409-8150
Website: fundxnewsletter.com

No. 2 · RIA

Manchester Financial

Manchester Financial is an investment adviser based in Westlake Village, CA, registered with the SEC since 1990. 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 $1.05 billion, as filed on 21 August 2026.

Manchester Financial charges up to 1.25% a year for its Financial Planning and Portfolio Management Services.

Regulatory AUM: $1.05B
Clients: 1,102
Advisory staff: 14
Founded: 1990
Fee schedule: Up to 1.25% a year
Custodians: Charles Schwab
Headquarters: 2815 Townsgate Road, Suite 100, Westlake Village, CA 91361
Phone: 805-495-4405
Website: manchesterfinancial.com

No. 3 · RIA

Alliance Advisory & Securities

Alliance Advisory & Securities is an investment adviser based in Westlake Village, CA, registered with the SEC since 2006. 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 $687 million, as filed on 17 September 2026.

Regulatory AUM: $687M
Clients: 675
Advisory staff: 14
Founded: 1982
Custodians: Fidelity
Headquarters: 31248 E. Oak Crest Drive Ste 100, Westlake Village, CA 91361
Phone: 805-371-8020
Website: aewealth.com

No. 4 · RIA

Cruden Bay Investment Management

Cruden Bay Investment Management is an investment adviser based in Westlake Village, CA, registered with the SEC since 2016. It provides investment management. Its clients include high-net-worth individuals, charitable organizations and individual clients. Its regulatory assets under management total $663 million, as filed on 23 March 2026.

Cruden Bay Investment Management charges up to 2.00% a year for its Portfolio Management Services (Wrap Fee Program).

Regulatory AUM: $663M
Clients: 151
Advisory staff: 4
Founded: 2016
Fee schedule: Up to 2.00% a year
Custodians: LPL Financial, Charles Schwab
Headquarters: 2945 Townsgate Road, Suite 200, Westlake Village, CA 91361
Phone: 805-719-2772
Website: cbayinvestments.com

No. 5 · RIA

FMB Wealth Management

FMB Wealth Management is an investment adviser based in Westlake Village, CA, registered with the SEC since 2002. It provides investment management. Its clients include high-net-worth individuals, individual clients and charitable organizations. Its regulatory assets under management total $616 million, as filed on 28 April 2026.

FMB Wealth Management charges 0.40%–1.00% a year for its General Compensation Schedule.

Regulatory AUM: $616M
Clients: 324
Advisory staff: 5
Founded: 1994
Fee schedule: 0.40% to 1.00% a year
Minimum account: $1,000,000
Custodians: Fidelity, Charles Schwab
Headquarters: 100 N. Westlake BLVD., Suite 201, Westlake Village, CA 91362
Phone: 805-446-4494
Website: fmbwealth.com

No. 6 · RIA

Alteri Wealth

Alteri Wealth is an investment adviser based in Westlake Village, CA, registered with the SEC since 2024. It provides financial planning and investment management. Its clients include individual clients, high-net-worth individuals, and corporations and other businesses. Its regulatory assets under management total $566 million, as filed on 24 June 2026.

Alteri Wealth charges up to 1.50% a year for its Investment Management Services.

Regulatory AUM: $566M
Clients: 350
Advisory staff: 3
Fee schedule: Up to 1.50% a year
Headquarters: 4195 East Thousand Oaks BLVD., Suite 250, Westlake Village, CA 91362
Phone: 805-809-0400
Website: alteriwealth.com

No. 7 · RIA

Oak Asset Management

Oak Asset Management is an investment adviser based in Westlake Village, CA, registered with the SEC since 2017. It provides investment management. Its clients include high-net-worth individuals, individual clients, and pension and profit-sharing plans. Its regulatory assets under management total $414 million, as filed on 23 February 2026.

Oak Asset Management charges up to 1.50% a year for its Wrap Comprehensive Portfolio Management.

Regulatory AUM: $414M
Clients: 251
Advisory staff: 4
Founded: 2003
Fee schedule: Up to 1.50% a year
Custodians: Wells Fargo Clearing Services
Headquarters: 2535 Townsgate Road, Suite 300, Westlake Village, CA 91361
Phone: 805-778-0818
Website: oakasset.com

No. 8 · RIA

Williams & Novak Wealth Management

Williams & Novak Wealth Management is an investment adviser based in Westlake Village, CA, 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 $343 million, as filed on 16 September 2026.

Regulatory AUM: $343M
Clients: 285
Advisory staff: 4
Founded: 2023
Custodians: Fidelity, Altruist
Headquarters: 2625 Townsgate Road, Suite 330, Westlake Village, CA 91361
Phone: 626-689-7181
Website: strategicwealthandtaxes.com

No. 9 · RIA

Sherwood Financial Partners

Sherwood Financial Partners is an investment adviser based in Westlake Village, CA, registered with the SEC since 2022. 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 $294 million, as filed on 30 April 2026.

Regulatory AUM: $294M
Clients: 88
Advisory staff: 3
Founded: 2019
Custodians: Charles Schwab
Headquarters: 2475 Townsgate Road, Suite 210, Westlake Village, CA 91361
Phone: 805-870-5591
Website: sherwoodfp.com

No. 10 · RIA

Our Wealth Guides

Our Wealth Guides is an investment adviser based in Westlake Village, CA, registered with the SEC since 2021. 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 $258 million, as filed on 18 June 2026.

Our Wealth Guides charges 0.65%–1.20% a year for its Portfolio management services.

Regulatory AUM: $258M
Clients: 240
Advisory staff: 3
Founded: 2018
Fee schedule: 0.65% to 1.20% a year
Custodians: Charles Schwab
Headquarters: 2945 Townsgate Road, Suite 120, Westlake Village, CA 91361
Phone: 805-603-4960
Website: villagewealthadvisors.com

Questions about financial advisors in Westlake Village

How many financial advisor firms are headquartered in Westlake Village?

20 SEC-registered financial advisor firms report their principal office in Westlake Village, CA, managing $15.5B 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 Westlake Village?

One Capital Management, with $8.53B in regulatory assets under management on its latest Form ADV. The next largest are Manchester Financial ($1.05B) and Alliance Advisory & Securities ($687M).

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

How large is a typical financial advisor firm in Westlake Village?

The median firm manages $255M in regulatory assets. That is the midpoint of the 20 firms headquartered in Westlake Village.

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

How much do financial advisors in Westlake Village charge?

Of the 10 largest firms, 7 publish an asset-based fee schedule for their main service in their brochure. The highest rate in those schedules runs from 1.00% to 2.00% 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 Westlake Village?

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

Westlake Village has 20 financial advisor firms; see every adviser in the city →

The 10 largest by assets

Profiles of the top 10

Questions about financial advisors in Westlake Village

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