| A-1 Sewer Service | Charles Roux | 213 Patten Rd | Tewsksbury | MA | 01876 | 978 640-9984 |
| Buxton Construction | Todd Buxton | 34 West ST. P.O. Box 1265 | Pepperell | MA | 01463 | 978 433-2506 |
| Connell Construction | Scott Connell | Ingalls Road | Tyngsborough | MA | 01879 | 978 649-2821 |
| Finnegan Commercial Development Corp. | George Bartlett | 7 Doris Ave | N.Chelmsford | MA | 01863 | 978 251-4300 |
| Finnegan Commercial Development Corp. | Frank Sexton | 7 Doris Ave | N.Chelmsford | MA | 01863 | 978 251-4300 |
| Dumont Enterprises, Inc | Kevin Dumont | 41 Lowell St. | Dunstable | MA | 01827 | 978 649-7376 |
| Fisette Contracting | James Fissette | 11 LeBlanc Road | Pelham | NH | 03076 | 603 635-9859 |
| Greenwood Sewer Serv. | Carlton Greenwood | 3 Greenwood Ave | Westford | MA | 01886 | 978 692-8930 |
| Griffin & Sons (Bob) | Robert Griffin | P.O. Box 7 | N. Billerica | MA | 01862 | 978 663-3831 |
| Heider Construction | James Heider | P. O. Box 420 | Tewsksbury | MA | 01876 | 978 851-2652 |
| Johnson Company (R.E.) | Robert Johnson | 93 Groton Street | Westford | MA | 01886 | 978 692-0162 |
| LeBlanc General Contr (E.A.) | Alfred LeBlanc | 16 Beech Street | Tyngsborough | MA | 01879 | 978 649-3369 |
| McCarthy Bros. Contracting | Michael McCarthy | 483 Nashua Rd | Dracut | MA | 01826 | 978 957-0473 |
| Ratta Co., Inc. (R.M.) | Robert Ratta | 19 Westford Road | Ayer | MA | 01432 | 978 772-5718 |
| Soucy's Sewer Service, Inc | John Soucy | 78 North Broadway | Salem | NH | 03079 | 603 898-9339 |
| Surianello Inc. (Ralph) | Joseph Surianello | 49 Silva Lane | Dracut | MA | 01826 | 978 458-9111 |
Northboro Septic (Curtis Septic)
| Andrew Curtis | 124 Main Street | Northboro | MA | 01532
| 508 393-7234 |
| Sunny Meadow Contracting | Jay Alexa | 88 Norris Road | Tyngsborough, MA | MA | 01879 | 978 265-7177 |
Borough Sewer Service
| Fred Perrault | P.O. Box 111
| Tyngsborough
| MA | 01879 | 978 649-6297 |
