| A D Mac, Inc. | Arthur MacRae, President | 387 7th Street | Jersey City | NJ | 07302 | 201-876-0134 | 201-876-0304 |
| ACG Solutions, LLC | Thomas Kurkcu, President | 8 Marvin Place | Bethel | CT | 06801 | 203-743-9734 | 203-286-1524 |
| Advanced Information Technologies, Inc. | Robert Manning, President | P.O. Box 51038 | Boston | MA | 02205 | 508-697-0505 | 508-697-0487 |
| Advantage Control & Design | Stephen MacKenzie, President | 175 Birchwood Road | Hanover | MA | 02339 | 781-826-9628 | |
| AEC Group | David A. Wessel, Vice Pesident | 1735 Fifth Avenue | McKeesport | PA | 15132 | 412-678-1440 | 412-678-8265 |
| Aetna Fire Alarm Services Co., Inc. | Kathleen Guinee, President | 13 Clover Street | Dorchester | MA | 02122 | 617-282-3888 | 617-282-5369 |
| AFT Electric | Angelo F. Terrizzi, President | 20 Thornton Road | Nashua | NH | 03063 | 978-349-6130 | |
| AK Media/MA | Drew Hoffman, President/General Manager | 89 Maple Street, P.O. Box 490 | Stoneham | MA | 02180 | 781-438-8880 | 781-279-2020 |
| Aldon Electric | Donald Mullaney, President | 38 Greenwood Avenue | Weymouth | MA | 02189 | 781-337-0222 | 781-337-5152 |
| Alfonso Electrical Services | Ada Alfonso, Owner/President; Kim Bates, Operations Manager | 465 Center Street | Middleboro | MA | 02346 | 508-947-8254 | 508-947-8273 |
| All-Pro Electric, Inc. | Michael Harrington | 640 Boxford Road | Bradford | MA | 01835 | 978-469-0100 | 978-469-0783 |
| All-Ron Electric, Inc. | Ronald Forgione, President | 26 Boxford Road | Topsfield | MA | 01983 | 617-338-4343 | |
| Alliance Integrated Systems, Inc. | Daniel Flittner, President | P.O. Box 1988 | Pinehurst | NC | 28370 | 910-255-0670 | 910-255-0052 |
| American Electrical Testing Company | Charles Blizzard, President | 480 Neponset Avenue, P.O. Box 267 | Canton | MA | 02021 | 781-821-0121 | 781-821-0771 |
| Assurance Electrical Corporation of America | Kathleen McDonald, President | P.O. Box 243 | Avon | MA | 02322 | 781-334-2270 | 781-767-3462 |
| Atlantic Power & Light, Inc. | Mark J. Donovan, President | 17 Dickens Street | Boston | MA | 02122 | 617-436-2758 | 617-436-0555 |
| Audet & Sons, E. W., Inc. | Ernest W. Audet, President | 169 Bay Street | Providence | RI | 02905 | 401-467-3510 | 401-781-8822 |
| Averill Electric Co., Inc. | Francis M. Averill, President | 17 Technical Park Drive | Holbrook | MA | 02343 | 781-963-3698 | 781-961-6575 |
| Ayer Electric | David Ayer, Owner | P.O. Box 1363 | Dover | NH | 03821 | 603-868-6446 | 603-868-7290 |
| Bechtel Power Corporation | Linda Norton, Payroll | 5275 Westview Drive | Frederick | MD | 21073-8306 | 301-228-7726 | |
| Bennett Communications, Inc. | Michael McKinnon, President | Bennett Lane | Quincy | MA | 02169 | 617-471-8000 | 617-770-0131 |
| Bennett Electrical, Inc. | Michael McKinnon, President | Bennett Lane | Quincy | MA | 02169 | 617-471-8000 | 617-770-0131 |
| Bent Electrical Contractors, Inc. | Thomas Bent, President | 59A Innerbelt Road | Somerville | MA | 02143 | 617-628-0831 | 617-666-3042 |
| Black Box Network Services | Alexander T. Walsh, Operations Manager | 540 Township Line Road | Blue Bell | PA | 198422 | 215-654-9226 | 215-654-9228 |
| Blais Electrical Corporation | John Blais, President | 15 Proctor Street | Framingham | MA | 01701 | 781-237-6260 | |