| Northern Line Construction | (207) 564-7901 | |
| Haugland Energy Group LLC | (516)336-6720 | haughlandenergy.com |
| State Electric | (781)933-5255 | stateelectriccorp.com |
| Crawford Drilling Services, Inc. | (978)874-0830 | crawforddrillingservices.com |
| Allan Briteway Electrical Contr. | (973)781-0022 | allanbriteway.com |
| Geologic, Inc. | (508)384-4434 | geologicinc.com |
| Rokstad Power Corp | (888)310-8830 | rokstadpower.com |
| I.B. Abel, Inc. | (717)845-1630 | ib-abel.com |
| SAFE 4 LIFE | (770) 548-9042 | |
| Ryan Electric | (401)732-5490 | |
| JT Cleary, INC. | (845)352-1099 | jtcleary.com |
| Three Phase Line Construction | (603)755-9610 | threephaseline.com |
| E.W. Audet & Sons | (401)467-3510 | ewaudet.com |
| McPhee Electric Ltd. | (860) 677-9797 | mcpheeusa.com |
| Utec Constructors Corporation | (617)364-8960 | uteccorp.com |
| Energy Mat Alliance, LLD | (810)931-1164 | energymat.us |
| O'Donnell Line Construction | (603)887-2084 | odonnell-line.com |
| Michels Corporation | (920)583-3132 | michels.us |
| New York Drilling Services | (845)246-9193 | |
| MILLER CONSTRUCTION CO. INC. | (812) 882-6690 | millerpower.com |
| North Line Utility Contractors | (518)647-8198 | northlinellc.org |
| Tri-State Signal | (617)889-0606 | |
| New Gen Powerline Construction | | |
| E.S. Boulos | (207)464-3706 | esboulos.com |
| Northern Drill Service, Inc. | (508)450-9858 | northerndrillservice.com |
