Preston Advisory Services Llc
- Regulatory AUM
- $198M
- Discretionary
- $198M
- Clients
- 2,528
- Avg AUM / client
- $78.2K
- Accounts
- 2,526
- Employees
- 5
AUM over time
Annual snapshots from Form ADV filings · as of May 25, 2026
Who they serve
| Client type | Clients | AUM | % of AUM |
|---|---|---|---|
| Individuals (non-high net worth) | 2,509 | $173M | 87.7% |
| High net worth individuals | 17 | $23.1M | 11.7% |
| Pension and profit sharing plans | 1 | $1.2M | 0.58% |
| Charitable organizations | 1 | $105K | 0.05% |
People (4)
roster as of Jul 20, 2026| Name | Role / title | Credentials | With firm since | Ownership |
|---|---|---|---|---|
| Scott David Preston | Registered representative | Oct 2017 (9y) | ||
| Shay Dean Stiers | Registered representative | May 2021 (5y) | ||
| Kelly Dawn Shuffler | Registered representative | Feb 2022 (4y) | ||
| Anthony John Castillo | Registered representative | May 2026 (0y) |
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.
Documents (1 archived)
| Form | Period | Size | |
|---|---|---|---|
| Form ADV (full filing) | 05/25/2026 | 906 KB | 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
Services
- • Portfolio management for individuals/small businesses
- • Selection of other advisers
Custody
Reported custodians
- Charles Schwab & Co. $167M (85% of AUM) May 2026
- Capital Group $30.3M (15% of AUM) May 2026
Amounts as reported in ADV Item 5.K.(3) (custodians holding 10%+ of SMA assets).
Firm reports it does not have 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: May 25, 2026.
View current Form ADV (SEC/IAPD) ↗