AdvisorCensus / Financial advisors / Alabama / Birmingham / Mainsail Asset Management, LLC
Mainsail Asset Management, LLC is an SEC-registered investment advisory firm in Birmingham, AL, registered since 2007, reporting $500 million to $1 billion in regulatory assets under management in its Form ADV filing dated July 15, 2026.
Quick answers
From the filingHow is Mainsail Asset Management, LLC compensated?
On its Form ADV (Item 5.E, October 2026), Mainsail Asset Management, LLC reports these compensation arrangements: a percentage of assets under its management; fixed fees (other than subscription fees); performance-based fees.
How much does Mainsail Asset Management, LLC charge?
Its Form ADV Part 2A brochure dated March 20, 2026 states: Flat fee: $5,000 to $50,000 (financial planning services). Fees can differ by service and may be negotiable; the brochure is the complete statement.
Where is Mainsail Asset Management, LLC located?
Mainsail Asset Management, LLC's principal office is in Birmingham, AL, according to its Form ADV; the August 2026 filing also lists 1 other office (Schedule D, Section 1.F).
Is Mainsail Asset Management, LLC registered with the SEC or a state?
Mainsail Asset Management, LLC is an SEC-registered investment advisory firm, registered since 2007. Status as filed: Approved. CRD 128373.
How much does Mainsail Asset Management, LLC manage?
Mainsail Asset Management, LLC reports $598,811,962 in regulatory assets under management in its Form ADV filing dated July 15, 2026 (69% discretionary).
How have Mainsail Asset Management, LLC's assets and staff changed since 2021?
In the Form ADV data for Mainsail Asset Management, LLC: Regulatory assets under management: $227,236,643 in the October 2021 data and $598,811,962 in the October 2026 data, up 164%. Total employees: 4 in October 2021 and 7 in October 2026. Assets under management move with markets as well as with clients coming and going.
What types of clients does Mainsail Asset Management, LLC serve?
By number of clients on Form ADV Item 5.D: high net worth individuals (91); individuals (other than high net worth individuals) (51); corporations or other businesses not listed above (24).
Which custodians does Mainsail Asset Management, LLC use?
Mainsail Asset Management, LLC'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 Mainsail Asset Management, LLC 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/128373
What changed in Mainsail Asset Management, LLC's recent Form ADV filings?
In the April 2026 filing data: Regulatory assets under management went from $410,149,620 to $598,811,962 (+46%).
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)
- Performance-based 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 2AThe brochure lists different fees for different services or strategies; see the brochure for them.
Flat fee: $5,000 to $50,000 (financial planning services)
The brochure's wording
Mainsail’s planning and consulting fees are negotiable, but generally range from $5,000 to $50,000 on a fixed fee basis, depending upon the level and scope of the service(s) required and the professional(s) rendering the service(s).
As stated in the firm's Form ADV Part 2A brochure dated March 20, 2026. Fees can differ by service and may be negotiable; the brochure is the complete statement. Read the brochure on the SEC's IAPD site
Regulatory assets under management
Item 5.F$598,811,962 as of October 2026, filing dated July 15, 2026.
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.DA 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 pooled investment vehicles (other than investment companies)
- Portfolio management for businesses (other than small businesses) or institutional clients
- Pension consulting services
- Selection of other advisers (including private fund managers)
Registration and firm details
Items 1, 2, 5- Registration
- SEC-registered investment adviser. Status as filed: Approved.
- Registered since
- 2007 (19 years)
- Employees
- Total: 7. 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.
- Other offices (Schedule D, Section 1.F)
-
1 other office, as of the August 2026 filing
- States registered or notice-filed
-
3 states or jurisdictions
SEC-registered investment advisers are examined by the SEC. SEC, state, and exempt registration
Disclosures
Item 11None 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| Data period | Assets under management | Employees | Filing dated |
|---|---|---|---|
| October 2026 | $598,811,962 | 7 | July 15, 2026 |
| October 2025 | $410,149,620 | 7 | March 21, 2025 |
| October 2024 | $343,935,777 | 6 | April 2, 2024 |
| October 2023 | $280,164,554 | 6 | March 27, 2023 |
| October 2022 | $220,927,438 | 4 | April 5, 2022 |
| October 2021 | $227,236,643 | 4 | February 23, 2021 |
Regulatory assets under management: $227,236,643 in the October 2021 data and $598,811,962 in the October 2026 data, up 164%.
Total employees: 4 in October 2021 and 7 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- April 2026
- Regulatory assets under management went from $410,149,620 to $598,811,962 (+46%).
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.ISource: 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 Asset Management, LLC (CRD 128373): Form ADV filing data as of October 2026. https://advisorcensus.com/firm/mainsail-asset-management-llc-birmingham-al-128373