 Poly6 Technologies, INC. | Burlington | 20–99 | ● ACTIVE |
 Sublime Systems, INC. | Somerville | 100–499 | ● ACTIVE |
 Aeroshield Materials INC | Waltham | — | ● ACTIVE |
 Ferro Ceramic Grinding INC | Wilmington | — | ● ACTIVE |
 Fourier LLC | Burlington | — | ● ACTIVE |
 Greener Blast Technologies, INC. | Tyngsboro | — | ● ACTIVE |
 Valley Design CORP | Shirley | — | ● ACTIVE |
| JMJg Maclellan Concrete CO INC | Wakefield | — | ◐ LIKELY ACTIVE |
| AIAggregate Industries Ready Mixed Concrete | Waltham | — | ◇ UNVERIFIED |
| GSGranite State Concrete | Westford | — | ◇ UNVERIFIED |
| JMJg Mclellan Concrete | Lowell | — | ◇ UNVERIFIED |
| SCShea Concrete Products INC | Wilmington | — | ◇ UNVERIFIED |
| BCBoston Concrete Corp. | Lowell, MA | 20–99 | ◐ LIKELY ACTIVE |
| AIAggregate Industries Stone Crushing Plant | Littleton | — | ◐ LIKELY ACTIVE |
| AIAggregate Inds Northeast Region INC | Watertown | — | ◇ UNVERIFIED |
| AIAggregate Industries Northeast Region | Burlington | — | ◇ UNVERIFIED |
| CMColeman Manufacturing | Everett | — | ◇ UNVERIFIED |
| RCRosenfeld Concrete | Ashland | — | ◇ UNVERIFIED |
| BCBenevento Concrete Corp | Wilmington | 20–99 | ◐ LIKELY ACTIVE |
| CICumar Inc | Everett | 20–99 | ◐ LIKELY ACTIVE |
| HMHopkinton, MA | Marlborough | 1–19 | ◐ LIKELY ACTIVE |
| LBLawn Barber INC / Phaneuf Stone | Ashby | 1–19 | ◐ LIKELY ACTIVE |
| SWShea Wilmington | Wilmington | 20–99 | ◐ LIKELY ACTIVE |
| SSStoneyard Spec Pond | Littleton | 20–99 | ◐ LIKELY ACTIVE |
| WFWee Forest Folk, Inc. | Carlisle | 20–99 | ◐ LIKELY ACTIVE |
| BSBeauty Stone, INC. | Boxborough | — | ◇ UNVERIFIED |
 Bomas Machine Specialties, Inc. | Somerville | — | ◇ UNVERIFIED |
| BCBoston Concrete CORP | Lowell | — | ◇ UNVERIFIED |
| CQCiment Quebec, INC. | Everett | — | ◇ UNVERIFIED |
| CMColonial Marble Co., INC. | Everett | — | ◇ UNVERIFIED |
| CLCounteredge, LLC | Waltham | — | ◇ UNVERIFIED |
| EMEmpire Marble & Granite, INC. | Somerville | — | ◇ UNVERIFIED |
| FPF Paiva Marble and Granite | Everett | — | ◇ UNVERIFIED |
| GFG Finkenbeiner INC | Waltham | — | ◇ UNVERIFIED |
| GFGlens Falls Lehigh Northeast Cement | Wilmington | — | ◇ UNVERIFIED |
| ICIdeal Concrete Block Company, INC. | Westford | — | ◇ UNVERIFIED |
| ISInternational Stone, INC. | Woburn | — | ◇ UNVERIFIED |
| LGLondon Glass & Mirror, INC. | Ashland | — | ◇ UNVERIFIED |
| MAMarble and Granite International, INC. | Waltham | — | ◇ UNVERIFIED |
| MPMarble & Polish, INC. | Malden | — | ◇ UNVERIFIED |
| MIMass-granite, INC. | Acton | — | ◇ UNVERIFIED |
| MLMne LLC | Woburn | — | ◇ UNVERIFIED |
| OGOcean Glass & Mirror Co., INC. | Lowell | — | ◇ UNVERIFIED |
| OMOnyx Marble & Granite, INC. | Framingham | — | ◇ UNVERIFIED |
| PCPrestige Custom Mirror & Glass, INC. | Waltham | — | ◇ UNVERIFIED |
| RGRevolution Granite, LLC | Tewksbury | — | ◇ UNVERIFIED |
| RCRosenfeld Concrete CORP | Framingham | — | ◇ UNVERIFIED |
| SMSelect Marble & Granite | Everett | — | ◇ UNVERIFIED |
| SIStoneyard, Inc. | Littleton | — | ◇ UNVERIFIED |
| TSThe Stoneworks Co., INC. | Holliston | — | ◇ UNVERIFIED |
