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AdvisorCensus / Financial advisors / Washington / Seattle / Mainsail Financial Group

Mainsail Financial Group

Bellevue, WASEC-registered investment adviserCRD 317970

Filed as MAINSAIL FINANCIAL GROUP · Legal name Mainsail Financial Group, LLC

Mainsail Financial Group is an SEC-registered investment advisory firm in Bellevue, WA, registered since 2022, reporting $100 million to $500 million in regulatory assets under management in its Form ADV filing dated September 30, 2026.

4 years
registered since 2022
$403,920,372
assets under management
2 arrangements
Percentage of assets, Fixed fees
None
disclosure items (Item 11)

Quick answers

From the filing

How is Mainsail Financial Group compensated?

On its Form ADV (Item 5.E, October 2026), Mainsail Financial Group reports these compensation arrangements: a percentage of assets under its management; fixed fees (other than subscription fees).

Where is Mainsail Financial Group located?

Mainsail Financial Group's principal office is in Bellevue, WA, according to its Form ADV; the October 2026 filing also lists 1 other office (Schedule D, Section 1.F).

Is Mainsail Financial Group registered with the SEC or a state?

Mainsail Financial Group is an SEC-registered investment advisory firm, registered since 2022. Status as filed: Approved. CRD 317970.

How much does Mainsail Financial Group manage?

Mainsail Financial Group reports $403,920,372 in regulatory assets under management in its Form ADV filing dated September 30, 2026 (94% discretionary).

How have Mainsail Financial Group's assets and staff changed since 2022?

In the Form ADV data for Mainsail Financial Group: Regulatory assets under management: $102,295,575 in the October 2022 data and $403,920,372 in the October 2026 data, up 295%. Total employees: 7 in October 2022 and 10 in October 2026. Assets under management move with markets as well as with clients coming and going.

What types of clients does Mainsail Financial Group serve?

By number of clients on Form ADV Item 5.D: individuals (other than high net worth individuals) (292); high net worth individuals (132); charitable organizations (2).

Which custodians does Mainsail Financial Group use?

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

Does Mainsail Financial Group 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/317970

What changed in Mainsail Financial Group's recent Form ADV filings?

In the October 2026 filing data: Employees performing advisory functions went from 6 to 5.

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
  • 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 January 30, 2026) for its fees and any account minimum, on the SEC's IAPD site.

Regulatory assets under management

Item 5.F
$403,920,372

$403,920,372 as of October 2026, filing dated September 30, 2026.

Discretionary: $377,980,246.Non-discretionary: $25,940,126.

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 292 Assets $107,365,232 (27%)
High net worth individuals
Clients 132 Assets $290,345,421 (72%)
Banking or thrift institutions
Clients 0 Assets $0 (0%)
Investment companies
Clients 0 Assets $0 (0%)
Business development companies
Clients 0 Assets $0 (0%)
Pooled investment vehicles (other than investment companies and business development companies)
Clients 0 Assets $0 (0%)
Pension and profit sharing plans (but not the plan participants or government pension plans)
Clients 0 Assets $0 (0%)
Charitable organizations
Clients 2 Assets $6,209,719 (2%)
State or municipal government entities (including government pension plans)
Clients 0 Assets $0 (0%)
Other investment advisers
Clients 0 Assets $0 (0%)
Insurance companies
Clients 0 Assets $0 (0%)
Sovereign wealth funds and foreign official institutions
Clients 0 Assets $0 (0%)
Corporations or other businesses not listed above
Clients 0 Assets $0 (0%)
Other
Clients 0 Assets $0 (0%)

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
  • Selection of other advisers (including private fund managers)
  • Educational seminars/workshops

Registration and firm details

Items 1, 2, 5
Legal name
Mainsail Financial Group, LLC
Registration
SEC-registered investment adviser. Status as filed: Approved.
Registered since
2022 (4 years)
Employees
Total: 10. Performing investment advisory functions: 5.
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.

Other offices (Schedule D, Section 1.F)
1 other office, as of the October 2026 filing
Eugene, OR
States registered or notice-filed
7 states or jurisdictions
AKAZCANHORTXWA

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
$102M 2022 $114M 2023 $192M 2024 $268M 2025 $404M 2026
Data periodAssets under managementEmployeesFiling dated
October 2026$403,920,37210September 30, 2026
October 2025$268,191,46613June 10, 2025
October 2024$191,575,8787June 7, 2024
October 2023$113,599,7626September 29, 2023
October 2022$102,295,5757May 17, 2022

Regulatory assets under management: $102,295,575 in the October 2022 data and $403,920,372 in the October 2026 data, up 295%.

Total employees: 7 in October 2022 and 10 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. October 2026
    • Employees performing advisory functions went from 6 to 5.
  2. July 2026
    • Employees performing advisory functions went from 5 to 6.
  3. June 2026
    • Employees performing advisory functions went from 6 to 5.
  4. May 2026
    • Employees performing advisory functions went from 7 to 6.
  5. February 2026
    • Regulatory assets under management went from $268,191,466 to $403,920,372 (+51%).
  6. December 2025
    • Employees performing advisory functions went from 8 to 7.

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
mainsailfg.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. Mainsail Financial Group (CRD 317970): Form ADV filing data as of October 2026.
https://advisorcensus.com/firm/mainsail-financial-group-bellevue-wa-317970