Mark Allen Ziebold is listed as Manager at Family Office Investment Advisory LLC on SEC Form ADV.
| Title | Manager |
| Ownership | — |
| Control person | Yes |
| Since | 2026 |
| Title | Trustee |
| Ownership | — |
| Control person | No |
| Since | 2020 |
| Title | Manager |
| Ownership | — |
| Control person | No |
| Since | 2024 |
| Title | Trustee |
| Ownership | — |
| Control person | No |
| Since | 2019 |