| AEAccellent Endoscopy | Watertown | CT | Fabricated Metal Product Manufacturing332119 | — | ◇ UNVERIFIED |
| DTDakota Tube Building 3 | Watertown | SD | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| DTDakota Tube INC | Watertown | SD | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| FSFiberglass Specialties INC | Watertown | SD | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| SESmith Equipment Manufacturing | Watertown | SD | Fabricated Metal Product Manufacturing332721 | — | ◇ UNVERIFIED |
 Twin City Die Castings CO - Watertown Div | Watertown | SD | Primary Metal Manufacturing331522 | — | ◇ UNVERIFIED |
| UCUS Chemical | Watertown | WI | Chemical Manufacturing325610 | — | ◇ UNVERIFIED |
| LDLco Destiny LLC Dba Timeless Frames | Watertown | NY | Wood Product Manufacturing321999 | — | ◇ UNVERIFIED |
| AIAcusphere INC | Watertown | MA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| AIAggregate Inds Northeast Region INC | Watertown | MA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| AIAggregate Industries Asphalt Plant | Watertown | MA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| AMApplied Molded Products Corporation | Watertown | WI | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| BIBeacon Industries | Watertown | MA | Machinery Manufacturing333298 | — | ◇ UNVERIFIED |
| BPB&g Powder Coating LLC | Watertown | SD | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| CWChapin Watermatics INC | Watertown | NY | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| CPChrome Plating of Waltham | Watertown | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| CDConcrete Dakota Redi Mix INC. | Watertown | SD | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| CFCustom Fabricators INC. | Watertown | SD | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
 Doble Engineering Company | Watertown | MA | Computer and Electronic Product Manufacturing334515 | — | ◇ UNVERIFIED |
| EMEsco Manufacturing, INC. | Watertown | SD | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| EMEyelematic Manufacturing | Watertown | CT | Fabricated Metal Product Manufacturing332115 | — | ◇ UNVERIFIED |
| GGcc-watertown | Watertown | SD | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| GIGe Ionics | Watertown | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| HMHaartz Mason INC | Watertown | MA | Plastics and Rubber Products Manufacturing326299 | — | ◇ UNVERIFIED |
| HMHenlopen Manufacturing Company, INC. | Watertown | CT | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| MLMetrix, LLC | Watertown | SD | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| MUMicro Uspd Incorporated Semiconductor Products Division | Watertown | MA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| MIMidcom INC | Watertown | SD | Computer and Electronic Product Manufacturing334416 | — | ◇ UNVERIFIED |
| MRMinnesota Rubber & Plastics | Watertown | SD | Plastics and Rubber Products Manufacturing326191 | — | ◇ UNVERIFIED |
| NWNewly Weds Foods | Watertown | MA | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| OCOdell Company the | Watertown | MA | Textile Product Mills314992 | — | ◇ UNVERIFIED |
| PIPhilson, INC. | Watertown | CT | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
 Ppg Architectural Finishes, INC. | Watertown | CT | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| RIReiss Industries INC | Watertown | WI | Plastics and Rubber Products Manufacturing326140 | — | ◇ UNVERIFIED |
| SLSpx Lindberg a Division of Spx Corporation | Watertown | WI | Fabricated Metal Product Manufacturing332811 | — | ◇ UNVERIFIED |
| TPTechnical Plating | Watertown | TN | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| TSTerex South Dakota | Watertown | SD | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| TSTerex South Dakota - Main Plant | Watertown | SD | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| THTyco Healthcare Kendall | Watertown | NY | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| VNVerizon New England | Watertown | MA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
 Western Industries INC | Watertown | WI | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| MAMoody & Associates INC | Watertown | TN | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| 1B1cell Bio INC | Watertown | MA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| 5W555 Watertown LLC | Watertown | MA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| AAddgeneinc | Watertown | MA | Chemical Manufacturing325414 | — | ◇ UNVERIFIED |
| ASAdvanced Specialties, LLC | Watertown | CT | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| ATAero Trailers LLC | Watertown | SD | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| ABAlteri Bread Company, INC. | Watertown | NY | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| AMAre Ma Region No 75 LLC | Watertown | MA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| BMBaker-rullman Manufacturing, INC. | Watertown | WI | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
