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 |
| RFE Engineering Inc. | 08/2019 | Civil Engineering | Roseville |
| GHD | 04/2019 | Civil Engineering | Roseville |
| Hydroscience | 03/2019 | Civil Engineering | Sacramento |
| Peterson Brustad Inc. | 01/2019 | Civil Engineering | Folsom |
| Valley Tech Systems | 11/2018 | Aerospace Engineering | Folsom |
| MWA, Inc. | 11/2018 | Architecture Structural | Truckee |
| Knight CM Group | 10/2018 | Construction Management | El Dorado Hills |
| Modern Building Inc. | 08/2019 | Commercial Construction | Chico |
