| AOAmerican Outdoor Provisions, Inc. | Berwick | ME | Miscellaneous Manufacturing339920 | — | ◇ UNVERIFIED |
| APAmerican Pride LLC | Guilford | ME | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| ARAmerican Rheinmetall Munition, INC. | Windham | ME | Machinery Manufacturing333310 | — | ◇ UNVERIFIED |
| ALAnnabelle Lee, INC. | Kennebunkport | ME | Food Manufacturing311712 | — | ◇ UNVERIFIED |
| AMApogee Medical, Inc. | Blue Hill | ME | Miscellaneous Manufacturing339113 | — | ◇ UNVERIFIED |
| APAps Printing, INC. | Waterville | ME | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| AAAquilla and Neptun Enterprises, LLC | Ocean Park | ME | Fabricated Metal Product Manufacturing332912 | — | ◇ UNVERIFIED |
| ALArc-e-ology, LLC | Sanford | ME | Machinery Manufacturing333249 | — | ◇ UNVERIFIED |
| AAroostacast | Presque Isle | ME | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| ACAtlantic Concealment | Windham | ME | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| ACAtlantic Custom Processors | Fort Fairfield | ME | Food Manufacturing311411 | — | ◇ UNVERIFIED |
| ASAtlantic Shellfish LLC | Jonesport | ME | Food Manufacturing311711 | — | ◇ UNVERIFIED |
| ACAuburn Concrete | Fairfield | ME | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| ACAuntie Carmen, Inc. | Freeport | ME | Food Manufacturing311520 | — | ◇ UNVERIFIED |
| BLB^3 LLC | Windham | ME | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| BHBachelder Holding, LLC | Portland | ME | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| BWBagala Wood & Window Works | Gorham | ME | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| BBBaked by Bambi | Norway | ME | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| BCBangor Canvas | Bangor | ME | Textile Product Mills314912 | — | ◇ UNVERIFIED |
| BNBangor Neon | Bangor | ME | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| BPBarrett Paving Materials INC | Dover-foxcroft | ME | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BKBaryonyx Knife Company LLC | Bar Harbor | ME | Fabricated Metal Product Manufacturing332212 | — | ◇ UNVERIFIED |
| BCB&B Custom Creations Inc | Oakland | ME | Textile Product Mills314999 | — | ◇ UNVERIFIED |
| BLBeerme, LLC | Scarborough | ME | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| BMBelanger Metalworks LLC | Biddeford | ME | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| BBBelleflower Brewing Company, LLC | Portland | ME | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| BFBethel Furniture Stock | Bethel | ME | Furniture and Related Product Manufacturing337126 | — | ◇ UNVERIFIED |
| BBBlack Bear Industrial | Rumford | ME | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| BBBlackbird Baking Company LLC | Portland | ME | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| BPBlack Pug Brewing Company, LLC | Brunswick | ME | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| BTBlast Tech Enterprises | Raymond | ME | Fabricated Metal Product Manufacturing332811 | — | ◇ UNVERIFIED |
| BRBlue Rock Industries | Westbrook | ME | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| BBBluetriton Brands, INC. | Saco | ME | Beverage and Tobacco Product Manufacturing312112 | — | ◇ UNVERIFIED |
| BCBold Coast Smoke House | Lubec | ME | Food Manufacturing311711 | — | ◇ UNVERIFIED |
| BJBootleg Jerky | Columbia | ME | Food Manufacturing311423 | — | ◇ UNVERIFIED |
| BUBottoms USA INC | Auburn | ME | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| BFBragdon Farms, LLC | Waterville | ME | Wood Product Manufacturing321219 | — | ◇ UNVERIFIED |
| BLBrb, LLC | Winterport | ME | Beverage and Tobacco Product Manufacturing312130 | — | ◇ UNVERIFIED |
| BGBrown's Greens | Brooksville | ME | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BABruce a Manzer INC | Anson | ME | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BTB & T Pallet Recycling, INC. | Lewiston | ME | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| BLBuxtonboats, LLC | Stonington | ME | Transportation Equipment Manufacturing336612 | — | ◇ UNVERIFIED |
| CCC.a. Construction, INC. | Sullivan | ME | Wood Product Manufacturing321991 | — | ◇ UNVERIFIED |
| CWCape Whoopie, Maine's Gourmet Whoopie Pie | South Portland | ME | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| CPCaron's Paving & Sealing | Fort Kent | ME | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CWCarrier Welding and Fabrication, LLC | Wilton | ME | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| CMCarroll Materials, LLC | Westbrook | ME | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CMCarroll Materials, LLC | Limerick | ME | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CBCasco Bay Steel - Saco | Saco | ME | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CPCatalyst Paper Operations, INC. | Rumford | ME | Paper Manufacturing322121 | — | ◇ UNVERIFIED |
