| Business | Phone |
| Herbert P Gray 111 Simmons Rd, South Portland 4106 | (207) 767-1861 |
| Oest Associates Inc 343 Gorham Rd # 9, South Portland 4106 | (207) 761-1770 |
| De Luca Hoffman Assoc Inc 778 Main St # 8, South Portland 4106 | (207) 775-1121 |
| Earth Tech Inc 500 Southborough Dr # 5, South Portland 4106 | (207) 775-2800 |