| Name | Selected |
| Acela Architects + Engineers, PC | |
| Alfred Benesch & Company | |
| American Engineers Group, LLC | |
| Barry Isett & Associates | |
| Bassett Engineering Inc | |
| CDM Smith | |
| Cedarville Engineering Group LLC | |
| CESO Inc | |
| CIVIL & ENVIRONMENTAL CONSULTANTS | |
| DCNR | |
| DODGE DATA & ANALYTICS | |
| EnviroScience Inc. | |
| evolve environment::architecture | |
| First Capital Engineering, Inc. | |
| Fisher Associates | |
| GEI Consultants | |
| Gibson-Thomas Engineering Co., Inc. | |
| Gilmore & Associates | |
| Greenman-Pedersen, Inc. | Yes |
| Groundwater & Environmental Services, Inc. | |
| H. Edward Black & Associates, Ltd | |
| Herbert, Rowland, & Grubic, Inc | |
| Honor Engineer Co. | |
| KCI Technologies, Inc. | Yes |
| Keller Engineers | Yes |
| LARSON DESIGN GROUP | |
| MACKIN ENGINEERING | |
| Michael Baker International, Inc. | |
| Mid-Penn Engineering Corporation | |
| Morris Knowles & Associates | |
| NTM Engineering, Inc. | |
| NV5, Inc. | |
| Pennoni Associates, Inc | Yes |
| QUALITY ENGINEERING SOLUTION | |
| R.J. Fisher & Associates, Inc. | |
| Reilly Associates Consulting Engineers | |
| RETTEW Associates, Inc | |
| RETTEW Associates, Inc. | |
| RETTEW Associates, Inc. | |
| RGS Associates, Inc | |
| RK&K | |
| SCS | |
| SCS Engineers | |
| Site Design Concepts | |
| Skelly and Loy, Inc. | Yes |
| Stahl Sheaffer Engineering LLC | |
| Stiffler McGraw and Associates | |
| Straughan Environmental, Inc. | |
| SUSQUEHANNA CIVIL INC | |
| T.Y. Lin International | |
| Terracon Consultants | |
| Terracon Consultants | |
| TERRADON Corporation | |
| THE EADS GROUP | Yes |
| THE EADS GROUP | |
| The Markosky Engineering Group, Inc. | |
| TRC Engineers | |
| Warehaus AE | |
| Wilson Consulting Group, PC | |
| ZZZTEST | |