Mainsail Asset Management, Llc
- Regulatory AUM
- $599M
- Discretionary
- $412M
- Clients
- 188
- Avg AUM / client
- $3.2M
- Accounts
- 889
- Employees
- 7
AUM over time
Annual snapshots from Form ADV filings · as of Jul 15, 2026
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Individuals (non-high net worth) | 51 | $23.5M | 3.92% |
| High net worth individuals | 91 | $349M | 58.2% |
| Pooled investment vehicles (non-investment companies) | 5 | $134M | 22.3% |
| Pension and profit sharing plans | 5 | $8.7M | 1.45% |
| Charitable organizations | 12 | $4.3M | 0.71% |
| Corporations and other businesses | 24 | $80.1M | 13.4% |
Private funds (5)
Reported in Form ADV Section 7.B.(1), filing of Apr 2024 · $120M combined gross assets
| Fund | Type | Domicile | Gross assets | Owners |
|---|---|---|---|---|
| First Avenue Funding, Llc | Other Private Fund | Alabama | $60.4M | 101 |
| First Avenue Bridge Equity, Llc | Other Private Fund | Alabama | $53.3M | 83 |
| First Avenue Private Partners, Llc | Private Equity Fund | Alabama | $3.6M | 12 |
| First Avenue Infrastructure Ii, Llc | Other Private Fund | Alabama | $3.1M | 11 |
| First Avenue Infrastructure, Llc | Private Equity Fund | Alabama | $0 | 0 |
Retirement plan clients
Plans that reported this firm as an investment service provider on Form 5500 Schedule C.
| Plan | Location | Plan year |
|---|---|---|
| Littler Mendelson 401(k) Plan And Trust Littler Mendelson, P.C. | 2024 |
People (3)
roster as of Jul 20, 2026| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| William Harvey Parsons | Chief Compliance Officer / Managing Member | Personal Financial Specialist | Aug 2003 (23y) | 75% or more |
| Andrew Hagan Brignac | Member | CFP | Nov 2019 (7y) | 10% – 25% |
| William Brandon Gooding | Registered representative | Sep 2024 (2y) |
Undisclosed: 0% – 15% of the firm is not attributable from the filed Schedule A bands.
Roster from the IAPD representatives feed; ownership and acquisition dates from Form ADV Schedule A/B. "Since" is the earliest filed registration or acquisition date.
Private funds (5, $120M gross assets)
| Fund | Type | Gross assets | Min. investment | Owners |
|---|---|---|---|---|
| First Avenue Funding, Llc | Other Private Fund | $60.4M | $125K | 101 |
| First Avenue Bridge Equity, Llc | Other Private Fund | $53.3M | $125K | 83 |
| First Avenue Private Partners, Llc | Private Equity Fund | $3.6M | $125K | 12 |
| First Avenue Infrastructure Ii, Llc | Other Private Fund | $3.1M | $125K | 11 |
| First Avenue Infrastructure, Llc | Private Equity Fund | $0 | $125K | 0 |
From Form ADV Section 7.B private fund reporting.
Retirement plans served (1)
| Plan | Sponsor | Participants | Plan assets | As of |
|---|---|---|---|---|
| Littler Mendelson 401(k) Plan And Trust | Littler Mendelson, P.C. | 2,298 | $1.1B | 01/01/2024 |
From Form 5500 service-provider disclosures.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 07/15/2026 | 1.74 MB | View · PDF · Source ↗ |
Archived copies of the firm's regulatory filings, versioned by content hash.
Disciplinary disclosures
No disciplinary events reported on the firm's latest Form ADV filing.
How they charge
- • Percentage of assets under management
- • Fixed fees
- • Performance-based fees
Services
- • Financial planning services
- • Portfolio management for individuals/small businesses
- • Portfolio management for pooled investment vehicles
- • Portfolio management for businesses/institutional clients
- • Pension consulting services
- • Selection of other advisers
Custody
Reported custodians
- National Financial Services (Fidelity) $247M (41% of AUM) Jul 2026
- Charles Schwab & Co. $188M (31% of AUM) Jul 2026
Amounts as reported in ADV Item 5.K.(3) (custodians holding 10%+ of SMA assets).
Firm reports having custody of client funds or securities (Item 9.A).
Source
All data on this page comes from this firm's Form ADV filings, reproduced without modification. Latest filing: Jul 15, 2026.
View current Form ADV (SEC/IAPD) ↗