| Business | Phone |
| Modeling Specialties 30 Maple Rd, Westford 1886 | (978) 392-5817 |
| Building Science Corp 70 Main St, Westford 1886 | (978) 589-5100 |
| Geo Insight Inc 5 Lan Dr # 200, Westford 1886 | (978) 692-1114 |
| Sanborn Head & Assoc Inc 239 Littleton Rd, Westford 1886 | (978) 392-0900 |
| Delta Environmental Consultants 270 Littleton Rd # 24, Westford 1886 | (978) 392-2051 |