The Sierra Chapter is proud to announce the Board of Directors approved and welcomed the following new firms in the past year:
| Firm | Month/Yr. Joined | Member Type | City |
| TRC | 03/2023 | Engineering | Roseville |
| Ultieg | 06/2023 | Engineering | Rancho Cordova |
| IronOrbit | 08/2023 | Affiliate | Anaheim Hills |
| Aerial Zeus | 08/2023 | Affiliate | Sacramento |
| Jackson & Sands Engineering, Inc. | 09/2023 | Engineering | Grass Valley |
