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AdvisorCensus / Financial advisors / California / San Jose / Mayfield Advisors, Inc.

Mayfield Advisors, Inc.

Palo Alto, CASEC-registered investment adviserCRD 144072

Filed as MAYFIELD ADVISORS, INC.

Mayfield Advisors, Inc. is an SEC-registered investment advisory firm in Palo Alto, CA, registered since 2022, reporting $100 million to $500 million in regulatory assets under management in its Form ADV filing dated March 2, 2026.

4 years
registered since 2022
$143,464,721
assets under management
3 arrangements
Percentage of assets, Hourly and more
None
disclosure items (Item 11)

Quick answers

From the filing

How is Mayfield Advisors, Inc. compensated?

On its Form ADV (Item 5.E, October 2026), Mayfield Advisors, Inc. reports these compensation arrangements: a percentage of assets under its management; hourly charges; fixed fees (other than subscription fees).

Where is Mayfield Advisors, Inc. located?

Mayfield Advisors, Inc.'s principal office is in Palo Alto, CA, according to its Form ADV.

Is Mayfield Advisors, Inc. registered with the SEC or a state?

Mayfield Advisors, Inc. is an SEC-registered investment advisory firm, registered since 2022. Status as filed: Approved. CRD 144072.

How much does Mayfield Advisors, Inc. manage?

Mayfield Advisors, Inc. reports $143,464,721 in regulatory assets under management in its Form ADV filing dated March 2, 2026 (100% discretionary).

How have Mayfield Advisors, Inc.'s assets and staff changed since 2022?

In the Form ADV data for Mayfield Advisors, Inc.: Regulatory assets under management: $121,888,159 in the October 2022 data and $143,464,721 in the October 2026 data, up 18%. Total employees: 4 in October 2022 and 4 in October 2026. Assets under management move with markets as well as with clients coming and going.

What types of clients does Mayfield Advisors, Inc. serve?

By number of clients on Form ADV Item 5.D: high net worth individuals (23); individuals (other than high net worth individuals) (15); pension and profit sharing plans (but not the plan participants or government pension plans) (1).

Which custodians does Mayfield Advisors, Inc. use?

Mayfield Advisors, Inc.'s most recent Form ADV filing (Schedule D, Section 5.K(3)) lists Charles Schwab & Co., Inc. and National Financial Services LLC as custodians holding 10% or more of its separately managed account assets.

Does Mayfield Advisors, Inc. report any disciplinary disclosures?

Reports no disclosure items on Form ADV Item 11. The detail of any item is on the firm's SEC record: https://adviserinfo.sec.gov/firm/summary/144072

What changed in Mayfield Advisors, Inc.'s recent Form ADV filings?

In the April 2026 filing data: Regulatory assets under management went from $126,973,081 to $143,464,721 (+13%).

From the Form ADV filing

Every figure below is as the firm filed it with regulators, as of October 2026.

How the firm is compensated

Item 5.E
  • A percentage of assets under your management
  • Hourly charges
  • Fixed fees (other than subscription fees)

Item 5.E lists how the firm is compensated for its advice; Items 5.B, 6.A, and 7.A show whether its people or related companies can also earn commissions. Percentage of assets, fixed, hourly, subscription, and performance-based fees come from clients (a performance-based fee depends on investment results); commissions come with a sale or a trade, often from the company behind the product. How fees, commissions, and other arrangements differ

Fees and minimums

Form ADV Part 2A

The brochure lists different fees for different services or strategies. See the firm's brochure (dated March 2, 2026) for its fees and any account minimum, on the SEC's IAPD site.

Regulatory assets under management

Item 5.F
$143,464,721

$143,464,721 as of October 2026, filing dated March 2, 2026.

Discretionary: $143,464,721.Non-discretionary: $0.

A measure of scale, not skill or returns. Discretionary means the firm decides trades; non-discretionary means clients approve each one. What assets under management means

Who the firm serves

Item 5.D
Individuals (other than high net worth individuals)
Clients 15 Assets $13,592,756 (9%)
High net worth individuals
Clients 23 Assets $126,916,863 (88%)
Pension and profit sharing plans (but not the plan participants or government pension plans)
Clients 1 Assets $1,961,008 (1%)
Charitable organizations
Clients 1 Assets $994,094 (1%)

A firm with no individual clients is an institutional manager even if it manages billions; the mix tells you whom the practice is built around.

Advisory services

Item 5.G
  • Financial planning services
  • Portfolio management for individuals and/or small businesses
  • Portfolio management for businesses (other than small businesses) or institutional clients
  • Pension consulting services
  • Selection of other advisers (including private fund managers)
  • Other

Registration and firm details

Items 1, 2, 5
Registration
SEC-registered investment adviser. Status as filed: Approved.
Registered since
2022 (4 years)
Employees
Total: 4. Performing investment advisory functions: 4.
Wrap fee program participation
No.
Custodians (Schedule D, Section 5.K(3))

Custodians holding 10% or more of the firm's separately managed account assets, as filed on Form ADV (Schedule D, Section 5.K(3)). A custodian holds client assets; it does not endorse or supervise the firm. AdvisorCensus has no relationship with any custodian.

States registered or notice-filed
1 state or jurisdiction
CA

SEC-registered investment advisers are examined by the SEC. SEC, state, and exempt registration

Disclosures

Item 11

None Reports no disclosure items on Form ADV Item 11. View on IAPD.

Item 11 asks about criminal, regulatory, and civil events involving the firm and its advisory personnel. The detail of each yes answer is on the IAPD record. Reading a firm's disclosures

Assets and staff over time

Items 5.A, 5.F
$122M 2022 $105M 2023 $121M 2024 $127M 2025 $143M 2026
Data periodAssets under managementEmployeesFiling dated
October 2026$143,464,7214March 2, 2026
October 2025$126,973,0814March 19, 2025
October 2024$120,640,9194March 19, 2024
October 2023$105,409,2564July 26, 2023
October 2022$121,888,1594July 5, 2022

Regulatory assets under management: $121,888,159 in the October 2022 data and $143,464,721 in the October 2026 data, up 18%.

Total employees: 4 in October 2022 and 4 in October 2026.

As filed in each year's data for the same month. Assets under management move with markets as well as with clients coming and going; they measure scale, not skill or returns. Most firms update these figures once a year.

Changes in the filing

Last 12 months
  1. April 2026
    • Regulatory assets under management went from $126,973,081 to $143,464,721 (+13%).

Compared month to month from the SEC's monthly adviser data and the state compilation feed. Owners and control persons are summarized, never named.

Websites listed on Form ADV

Item 1.I
mayfieldadvisors.com

Source: Form ADV, as of October 2026. Values appear as filed; a value the firm did not report is shown as "Not reported."

Cite this page

AdvisorCensus. Mayfield Advisors, Inc. (CRD 144072): Form ADV filing data as of October 2026.
https://advisorcensus.com/firm/mayfield-advisors-inc-palo-alto-ca-144072