| INDEFATIGABLE LLC | 1706633 | BREWER | 1 |
| INDEFATIGABLE LLC | 3596457 | BREWER | 1 |
| INDEPENDENCE ENERGY INC | 1288379 | DURHAM | 5 |
| INDEPENDENCE FLOOR SUPPLY & RENTAL | 2512789 | WESTBROOK | 2 |
| INDEPENDENCE TRUCKING LLC | 3398559 | TOPSHAM | 1 |
| INDEPENDENT BOAT HAULERS INC | 319758 | ELIOT | 5 |
| INDEPENDENT WASTE SERVICES LLC | 3295683 | BUXTON | 2 |
| INDIAN HILL INC | 780165 | GREENVILLE | 3 |
| INDOOR ENVIRONMENT CONTROL INC | 1375739 | GORHAM | 1 |
| INDUSTRIAL CONCRETE SERVICES INC | 613618 | SACO | 1 |
| INDUSTRIAL HEATING & PIPING CO OF CARIBOU | 2288522 | CARIBOU | 3 |
| INDUSTRIAL INSTRUMENTATION AND CONTROLS LLC | 2568328 | BAILEYVILLE | 1 |
| INDUSTRIAL ROOFING COMPANY LLC | 1449780 | LEWISTON | 6 |
| INDUSTRIAL SALES INC | 1572460 | HOULTON | 1 |
| INFAB REFRACTORIES INC | 1381082 | LEWISTON | 1 |
| INFORMATION TECHNOLOGY EXCHANGE | 3209717 | WATERVILLE | 2 |
| INK TRANSPORT | 4079305 | BREWER | 1 |
| INLINE CONCRETE LLC | 2023754 | SEARSMONT | 4 |
| INLUTION INC | 2512665 | PRESQUE ISLE | 1 |
| INNER SPACE SERVICES INC | 909627 | CASCO | 1 |
| INNER SPACE SERVICES, INC | 8913427 | CASCO | 3 |
| INNIS WELL DRILLING LLC | 1434770 | GLENBURN | 1 |
| INNOVATIVE SPECIALTIES LLC | 2629345 | PITTSFIELD | 2 |
| INNOVATIVE UTILITIES LLC | 3914758 | ALBION | 5 |
| INSTALLED BUILDING PRODUCTS OF MAINE LLC | 3337770 | PORTLAND | 6 |
| INTEGRATED ELECTRICAL SERVICES | 3459714 | LEWISTON | 28 |
| INTEGRATED WASTE SOLUTIONS INC | 753985 | JEFFERSON | 1 |
| INTEGRITY BUILDERS AND CONTRACTORS INC | 1840289 | NORTH WATERBORO | 2 |
| INTEGRITY EARTHWORK LLC | 1365237 | WATERBORO | 1 |
| INTEGRITY EXCAVATION AND CONCRETE LLC | 4424064 | STRONG | 11 |
| INTEGRITY POWER LINE CONSTRUCTION LLC | 3134595 | FARMINGTON | 8 |
| INTERCOASTAL CONCRETE & WATERPROOFING INC | 1029341 | FREEDOM | 1 |
| INTERCOASTAL MARINE TRANSPORT | 788612 | SOUTH PORTLAND | 1 |
| INTERNATIONAL DELIVERY DRIVER LLC | 4472206 | CUMBERLAND CENTER | 1 |
| INTERSTATE FIRE PROTECTION LLC | 2871791 | GARDINER | 1 |
| INTERSTATE SEPTIC SYSTEMS INC | 695824 | ROCKLAND | 5 |
| INTOWN TROLLEY COMPANY | 794922 | KENNEBUNKPORT | 5 |
| INVESTMENT RECOVERY INC | 907910 | SKOWHEGAN | 2 |
| INVICTUS SOLUTIONS LLC | 3415240 | PALMYRA | 2 |
| IRELAND'S EQUIPMENT SERVICE LLC | 4215944 | LINCOLN | 1 |
| IRELAND'S RUBBISH SERVICE INC | 754083 | LINCOLN | 9 |
| IRELANDS CONSTRUCTION INC | 7274530 | WEST ENFIELD | 6 |
| IRELANDS LOGGING INC | 1845188 | ENFIELD | 1 |
| IRENE S PEASLEE | 1006078 | SOMERVILLE | 1 |
| IRISH FAMILY LOGGING INC | 996936 | PERU | 6 |
| IRISH WELL DRILLING INC | 668467 | SEBAGO | 2 |
| IRON COAST CONSTRUCTION LLC | 4511450 | ELLSWORTH | 4 |
| IRON HORSE TOWING LLC | 3964544 | JAY | 1 |
| IRON RAIL LLC | 4628939 | JEFFERSON | 5 |
| IRONGROUND LLC | 4118050 | WINTERPORT | 1 |
| IRONWOOD LOGGING INC | 2931347 | FORT KENT | 1 |
| IRRIGATION DESIGN COMPANY LLC | 2590946 | LYMAN | 3 |
| IRVING BRUNET | 940476 | E WATERBORO | 1 |
| IRVING C CAMPBELL | 744630 | BOOTHBAY | 1 |
| IRVING FARMS INC | 755993 | CARIBOU | 12 |
| IRVING FOREST PRODUCTS INC | 788108 | DIXFIELD | 8 |
| IRVING K HERRICK | 813004 | HARMONY | 1 |
| IRVING W HUMPHREY | 1322791 | EASTBROOK | 1 |
| IRVING WILBUR & SON INC | 756490 | WALTHAM | 3 |
| IRVING WOODLANDS LLC | 883583 | ST JOHN | 4 |
| ISAAC F MCCARTHY | 1950527 | SHERMAN | 1 |
| ISAAC JORDAN | 2301776 | MILLINOCKET | 1 |
| ISAAC JORDAN LOGGING | 4320354 | BRYANT POND | 1 |
| ISAAC N LABBE MASONRY CONTRACTOR INC | 2567658 | STANDISH | 4 |
| ISAMAX SNACKS INC | 1581445 | GARDINER | 1 |
| ISLAND BAY SERVICES INC | 921029 | PEAKS ISLAND | 2 |
| ISLAND DISPOSAL LLC | 3255592 | BROOKLIN | 1 |
| ISLAND ENERGY INC | 1070765 | ELLSWORTH | 12 |
| ISLAND ENERGY INC. | 6589951 | ELLSWORTH | 0 |
| ISLAND EQUIPMENT RENTAL LLC | 4332584 | BAR HARBOR | 1 |
| ISLAND GROUNDWORKS LLC | 1874183 | VINALHAVEN | 5 |
| ISLAND HARBOR MARINE INC | 4403723 | DEER ISLE | 1 |
| ISLAND PLUMBING AND HEATING CORP | 759913 | NORTHEAST HARBOR | 8 |
| ISLAND POOLS INC | 4574370 | VERONA ISLAND | 1 |
| ISLAND TRANSPORT LLC | 1949738 | ROCKLAND | 2 |
| ISLAND TREE LLC | 2534474 | DEER ISLE | 1 |
| ISLANDSCAPING INC | 1626978 | SOUTHWEST HARBOR | 2 |
| ISLE FUEL LLC | 4070815 | MATINICUS | 1 |
| ISLESBORO CENTRAL SCHOOL | 2361890 | ISLESBORO | 3 |
| IVAN A DAVIS | 996094 | LIBERTY | 1 |
| IVAN BRAGG | 3223358 | SEARMONT | 1 |
| IVAN CHOUINARD | 1882270 | NEW PORTLAND | 1 |
| IVAN D CHADBOURNE | 2221896 | PITTSFIELD | 0 |
| IVAN D GORDON | 192920 | MATTAWAMKEAG | 1 |
| IVAN E KEITH | 754228 | MAPLETON | 1 |
| IVAN J SMITH JR | 2201689 | DOVER-FOXCROFT | 1 |
| IVAN JOHN DAVIES | 1697497 | BUXTON | 1 |
| IVAN L YOUNG SR | 1838814 | WALDO | 1 |
| IVER SODERBERG | 756643 | CARIBOU | 3 |
| J & C EXPRESS LLC | 3666191 | MASARDIS | 1 |
| J & C LOGISTICS LLC | 3571286 | RICHMOND | 0 |
| J & C SNOW ETC INC | 981164 | BRIDGTON | 2 |
| J & C TREE SERVICE LLC | 2835643 | FRYEBURG | 2 |
| J & D CONCRETE INC | 926950 | NEW GLOUCESTER | 1 |
| J & E TRUCKING INC | 754021 | MARS HILL | 2 |
| J & G TRANSPORT | 4005384 | WINDHAM | 3 |
| J & J CEDAR MILL INC | 2265239 | BRIDGEWATER | 2 |
| J & J HAINES EXCAVATION INC | 747274 | AVON | 3 |
| J & J LANDSCAPING INC | 754023 | DOVER FOXCROFT | 1 |
| J & J PAVING LLC | 4236284 | FALMOUTH | 2 |