| OCOctober CO Chemetal Division | Easthampton | MA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| OLOmega Laboratories | Rowley | MA | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| PGPan Glo | Worcester | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| PIParatronix Incorporated | Attleboro, City of | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| PEPayne Engineering & Fabrications | Canton | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| PMPerkins Machine CO | Warren | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| PMPhilipp Mfg CO INC | Easthampton | MA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| PCPioneer Consolidated | North Oxford | MA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| PCPrecision Coating Company Incorporated | Dedham | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| PEProduction Enameling | Brockton | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
 Quality Metal Finishing INC | Chelsea | MA | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| RBReed & Barton Silver | Taunton | MA | Fabricated Metal Product Manufacturing332211 | — | ◇ UNVERIFIED |
| RNReed National CORP | Westfield | MA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| RPReed & Prince Mfg CO | Worcester | MA | Fabricated Metal Product Manufacturing332722 | — | ◇ UNVERIFIED |
| RMReflek Manufacturing INC | Fall River | MA | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| REReliable Electro Plating INC | Norton | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| RIRemtec INC Dba Tecmark | Norwood | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| RCRex Cut Products Incorporated | Fall River, City of | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| RCRexnord CORP | Springfield | MA | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| RCRichardson Charles a INC | Mansfield | MA | Fabricated Metal Product Manufacturing332111 | — | ◇ UNVERIFIED |
| RPRiley Power INC | Worcester | MA | Fabricated Metal Product Manufacturing332410 | — | ◇ UNVERIFIED |
| RPRoyal Plating & Polishing INC | Pittsfield | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| RMRugg Manufacturing Company | Greenfield | MA | Fabricated Metal Product Manufacturing332212 | — | ◇ UNVERIFIED |
| SESaeilo Enterprises | Worcester, City of | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| SESchneider Electric | Foxboro | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| STSem Tec INC | Worcester | MA | Fabricated Metal Product Manufacturing332991 | — | ◇ UNVERIFIED |
| SEServolift Eastern Corporation | Boston | MA | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| SMSmart Metals | Lawrence | MA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| SMSmtc Manufacturing CORP of Massachusetts | Franklin | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| SASousa and Demayo INC | North Attleboro | MA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| SSSouthbridge Sheet Metal | Southbridge | MA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| SPSpecial Products Energy | Canton | MA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| SMSpecialty Manufacturing | Amesbury | MA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| SPStandard Plating Incorporated | West Springfield | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| SIStandex International Spincraft Division | Billerica | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| SIStanley-parker INC Stanley Tools Worcester Plant | Worcester | MA | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| SPStar Plating | New Bedford | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| SMStd Mfg | Stoughton | MA | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| SMStevken Manufacturing | Billerica | MA | Fabricated Metal Product Manufacturing332721 | — | ◇ UNVERIFIED |
| SFStillwater Fasteners | Freetown, Town of | MA | Fabricated Metal Product Manufacturing332722 | — | ◇ UNVERIFIED |
| SPSuperior Process Company | Framingham | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| SUSwissturn USA INC | Oxford | MA | Fabricated Metal Product Manufacturing332721 | — | ◇ UNVERIFIED |
| SISymmons Industrial INC | Braintree | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| SMSynventive Molding Solutions | Peabody | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| TITamer Industries | Somerset | MA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| TMTdf Metal Finishing Company INC | Lynn | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| TCTek Coating Company Incorporated | Amesbury | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| TSTextron Systems Corporation | Wilmington | MA | Fabricated Metal Product Manufacturing332993 | — | ◇ UNVERIFIED |
| TNThe New Can CO INC | Holbrook | MA | Fabricated Metal Product Manufacturing332991 | — | ◇ UNVERIFIED |
| TFTrw Fasteners Div | Cambridge | MA | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
