| Firm | Month/Yr. Joined | Member Type | City |
| J Design Consulting Engineers | 09/2021 | Civil Engineering | Rancho Murieta |
| Ardurra Group, Inc. | 08/2021 | Engineering | Sacramento |
| Biggs Cardosa Associates, Inc. | 07/2021 | Engineering | Sacramento |
| Myriad Engineering, Inc. | 01/2021 | Engineering | Sacramento |
