| Business | Phone |
| American Geotech Inc 1801 Penn Ave, Reading 19609 | (610) 670-9055 |
| Applied Analysis Corp 150 Love Rd, Reading 19607 | (610) 796-1200 |
| Applied Geoscience & Engrg Inc 1300 New Holland Rd # 105, Reading 19607 | (610) 777-5027 |
| Arro Group 400 Washington St # 602, Reading 19601 | (610) 374-5285 |
| Beitmen & Huyett Inc 645 Penn St # 202, Reading 19601 | (610) 375-8513 |
| Des-Eng-Con Corp 240 Landruhe Ln, Reading 19607 | (610) 775-3375 |
| Frankel Engineering Labs Inc 125 S 5th St, Reading 19602 | (610) 373-5554 |
| Frederick Germann Pe Reading 19606 | (610) 779-8829 |
| Howell's Computer Drafting Svc 4970 Hafer Rd, Reading 19606 | (610) 370-1588 |
| Ion Exchange Assoc 420 Kenhorst Blvd, Reading 19611 | (610) 777-0484 |
| K & A Assoc Llc 4827 Partridge Dr, Reading 19606 | (610) 370-4550 |
| Keystone Technical Assoc Inc 519 Reading Ave, Reading 19611 | (610) 208-0710 |
| Motley Associates Inc 1300 New Holland Rd # 2, Reading 19607 | (610) 775-0888 |
| Parsons Energy & Cheml Grp 2675 Morgantown Rd, Reading 19607 | (610) 855-2000 |
| Powell Engineering Contractors 90 Dewald Rd, Reading 19606 | (610) 779-0531 |
| R A Swoyer Assoc 241 S 5th St, Reading 19602 | (610) 376-2580 |
| Stackhouse Seitz & Besinger 330 Revere Blvd, Reading 19608 | (610) 777-8000 |
| Stricker Design Technologies Reading 19605 | (610) 916-7072 |
| Van Cleef Engineering Assoc 4 Wellington Blvd, Reading 19610 | (610) 670-6630 |
| Weiser Engineering Consultant 25 Stevens Ave, Reading 19609 | (610) 670-6466 |
| Witman Engineers & Consulting 132 N 8th St, Reading 19601 | (610) 376-5680 |