| Business | Phone |
| Barton Associates Inc 221 W Philadelphia St, York 17404 | (717) 845-7654 |
| Product Design & Development 2603 Keyway Dr, York 17402 | (717) 741-4844 |
| Engineering Drafting Svc 391 Greendale Rd, York 17403 | (717) 843-6339 |
| Machinery Equipment & Engrng 709 Millers Spring Rd, York 17406 | (717) 252-9841 |
| J P Design & Manufacturer Inc 106 Shelbourne Dr, York 17403 | (717) 854-1668 |