| 1 | VIBRANTZ SPECIALTY PRODUCTS LLC | Baltimore | Chemicals | 1.7M lbs | 6 |
| 2 | DARLING INGREDIENTS INC.- LINKWOOD FACILITY | Linkwood | Food | 1.2M lbs | 4 |
| 3 | PERDUE AGRIBUSINESS LLC - SALISBURY MD | Salisbury | Food | 294.1K lbs | 5 |
| 4 | AES WARRIOR RUN INC | Cumberland | Electric Utilities | 215.8K lbs | 12 |
| 5 | GRACE DAVISON-CURTIS BAY WORKS | Baltimore | Chemicals | 121.4K lbs | 7 |
| 6 | XERXES CORP | Williamsport | Plastics and Rubber | 109.6K lbs | 1 |
| 7 | BRANDON SHORES & WAGNER COMPLEX | Curtis Bay | Electric Utilities | 55.1K lbs | 16 |
| 8 | U.S. ARMY ABERDEEN PROVING GROUND | Aberdeen Proving Ground | Other | 52.0K lbs | 3 |
| 9 | RUST-OLEUM CORP IN MD | Williamsport | Chemicals | 48.7K lbs | 12 |
| 10 | TERUMO MEDICAL CORP | Elkton | Miscellaneous Manufacturing | 41.9K lbs | 2 |
| 11 | ENGINEERED POLYMER SOLUTIONS INC. | Williamsport | Chemicals | 30.4K lbs | 10 |
| 12 | PLYMOUTH TUBE CO | Salisbury | Primary Metals | 29.7K lbs | 4 |
| 13 | U.S. NAVY NAVAL SUPPORT FACILITY INDIAN HEAD | Indian Head | Other | 29.1K lbs | 4 |
| 14 | MARYLAND & VIRGINIA LAUREL LLC | Laurel | Food | 14.6K lbs | 2 |
| 15 | GALVCO MARYLAND LLC | Baltimore | Fabricated Metals | 12.1K lbs | 1 |
| 16 | CULPEPER OF FRUITLAND LLC | Eden | Wood Products | 11.5K lbs | 3 |
| 17 | HEIDELBERG MATERIALS US CEMENT LLC | Union Bridge | Nonmetallic Mineral Product | 11.1K lbs | 6 |
| 18 | SHERWIN-WILLIAMS CO | Baltimore | Chemicals | 10.1K lbs | 10 |
| 19 | SOUTHERN GALVANIZING CO | Baltimore | Fabricated Metals | 9.5K lbs | 2 |
| 20 | NATIONAL SECURITY AGENCY FIRING RANGE | Fort George G Meade | Other | 9.0K lbs | 1 |
| 21 | HOLCIM(US) INC. | Hagerstown | Nonmetallic Mineral Product | 8.4K lbs | 6 |
| 22 | FIL-TEC INC | Smithsburg | Textiles | 8.3K lbs | 1 |
| 23 | TNEMEC CO INC | Baltimore | Chemicals | 6.8K lbs | 12 |
| 24 | NORTHROP GRUMMAN SYSTEMS CORP | Linthicum | Computers and Electronic Products | 5.7K lbs | 2 |
| 25 | NORTHROP GRUMMAN SYSTEMS CORP | Linthicum Heights | Computers and Electronic Products | 5.6K lbs | 2 |
| 26 | MACK TRUCKS INC | Hagerstown | Transportation Equipment | 5.6K lbs | 5 |
| 27 | AMERICAN YEAST CORP | Baltimore | Food | 4.8K lbs | 1 |
| 28 | US DOD NSA ANNAPOLIS | Annapolis | Other | 4.7K lbs | 1 |
| 29 | CYTEC ENGINEERED INC | Havre De Grace | Chemicals | 4.2K lbs | 6 |
| 30 | PRECOAT METALS | Elkridge | Fabricated Metals | 3.6K lbs | 6 |
| 31 | OLDCASTLE PRECAST INC | Edgewood | Nonmetallic Mineral Product | 3.2K lbs | 2 |
| 32 | GLOBAL BALTIMORE TERMINAL | Baltimore | Petroleum Bulk Terminals | 3.1K lbs | 12 |
| 33 | TANNER INDUSTRIES INC | Havre De Grace | Chemical Wholesalers | 3.0K lbs | 1 |
| 34 | TILLEY DISTRIBUTION | Middle River | Chemical Wholesalers | 2.8K lbs | 3 |
| 35 | CITGO PETROLEUM CORP | Baltimore | Petroleum Bulk Terminals | 2.8K lbs | 12 |
| 36 | GREAT SOUTHERN WOOD - MD INC. | Hagerstown | Wood Products | 2.5K lbs | 3 |
| 37 | MARYLAND & VIRGINIA MILK PRODUCERS COOPERATIVE INC - LAND | Hyattsville | Food | 1.9K lbs | 2 |
| 38 | INDEPENDENT CAN CO | Belcamp | Fabricated Metals | 1.6K lbs | 2 |
| 39 | DAP GLOBAL INC | Sparrows Point | Chemicals | 1.2K lbs | 3 |
| 40 | W L GORE & ASSOCIATES INC | Elkton | Chemicals | 1.2K lbs | 2 |
| 41 | TEXTRON SYSTEMS | Cockeysville | Transportation Equipment | 1.2K lbs | 3 |
| 42 | EASTMAN SPECIALTIES CORP | Chestertown | Chemicals | 1.1K lbs | 3 |
| 43 | PERDUE FOODS LLC - SALISBURY PROCESSING PLANT | Salisbury | Food | 1.0K lbs | 1 |
| 44 | AIRGAS USA LLC | Dundalk | Chemical Wholesalers | 895 lbs | 1 |
| 45 | ELITE SPICE INC. | Jessup | Food | 887 lbs | 1 |
| 46 | CLEANEDGE LLP | Baltimore | Chemicals | 837 lbs | 2 |
| 47 | ELITE SPICE INC. | Hanover | Food | 811 lbs | 3 |
| 48 | U.S. DHS FLETC CHELTENHAM MD | Cheltenham | Other | 627 lbs | 2 |
| 49 | NOXELL CORP | Hunt Valley | Chemicals | 624 lbs | 1 |
| 50 | U.S. DHS JAMES J. ROWLEY TRAINING CENTER | Laurel | Other | 620 lbs | 1 |
| 51 | CLEAN HARBORS OF BALTIMORE INC. | Baltimore | Hazardous Waste | 606 lbs | 6 |
| 52 | SOLVAY USA LLC | Baltimore | Chemicals | 476 lbs | 4 |
| 53 | KEMIRA WATER SOLUTIONS INC | Baltimore | Chemicals | 390 lbs | 2 |
| 54 | VALPAC INC. | Federalsburg | Chemicals | 366 lbs | 2 |
| 55 | HI-TECH COLOR INC | Odenton | Chemicals | 332 lbs | 4 |
| 56 | US DOD USAF JOINT BASE ANDREWS | Andrews Air Force Base | Other | 295 lbs | 2 |
| 57 | CERTAINTEED CORP | Williamsport | Plastics and Rubber | 260 lbs | 4 |
| 58 | ELITE SPICE INC. | Jessup | Food | 259 lbs | 3 |
| 59 | SAFT AMERICA INC. | Cockeysville | Electrical Equipment | 255 lbs | 1 |
| 60 | TRINITY STERILE | Salisbury | Miscellaneous Manufacturing | 250 lbs | 1 |
| 61 | CHESAPEAKE OPTICAL LABORATORY | Dundalk | Miscellaneous Manufacturing | 225 lbs | 1 |
| 62 | EATON AEROSPACE | Beltsville | Fabricated Metals | 214 lbs | 3 |
| 63 | PROFORM FINISHING PRODUCTS - BELCAMP | Belcamp | Nonmetallic Mineral Product | 183 lbs | 3 |
| 64 | FORT MEADE (USSS RANGE 1) | Fort George G Meade | Other | 175 lbs | 1 |
| 65 | WM. T. BURNETT & CO. | Jessup | Plastics and Rubber | 152 lbs | 2 |
| 66 | SPARTECH LLC | Salisbury | Plastics and Rubber | 136 lbs | 2 |
| 67 | S&G CONCRETE EDGEWOOD | Edgewood | Nonmetallic Mineral Product | 124 lbs | 2 |
| 68 | S&G CONCRETE GRANTLEY AVE. | Baltimore | Nonmetallic Mineral Product | 113 lbs | 2 |
| 69 | SAFETY-KLEEN SYSTEMS BALTIMORE (BAL) | Baltimore | Hazardous Waste | 113 lbs | 3 |
| 70 | MW COMPONENTS - BALTIMORE | Essex | Fabricated Metals | 103 lbs | 2 |
| 71 | US GYPSUM CO | Baltimore | Nonmetallic Mineral Product | 100 lbs | 2 |
| 72 | GOLD BOND BUILDING PRODUCTS - BALTIMORE | Baltimore | Nonmetallic Mineral Product | 76 lbs | 2 |
| 73 | BLACK & DECKER (US) INC | Hampstead | Fabricated Metals | 49 lbs | 2 |
| 74 | FLAVOR & FRAGRANCE SPECIALTIES | Essex | Food | 47 lbs | 1 |
| 75 | CLENDENIN BROTHERS INC | Baltimore | Fabricated Metals | 36 lbs | 3 |
| 76 | C-CARE LLC | Linthicum Heights | Chemicals | 24 lbs | 1 |
| 77 | WABTEC RAILWAY ELECTRONICS | Germantown | Transportation Equipment | 23 lbs | 1 |
| 78 | TATE ACCESS FLOORS INC. | Jessup | Fabricated Metals | 18 lbs | 2 |
| 79 | US NAVAL AIR STATION PATUXENT RIVER | Patuxent River | Other | 14 lbs | 1 |
| 80 | NEW DAWN MANUFACTURING CO | Upper Marlboro | Chemicals | 6 lbs | 1 |
| 81 | W.L. GORE & ASSOCIATES INC - LOVETT I | Elkton | Plastics and Rubber | 5 lbs | 1 |
| 82 | COLONIAL METALS INC | Elkton | Chemicals | 3 lbs | 2 |
| 83 | USSS RANGE (FORT MEADE) | Fort George G Meade | Other | 2 lbs | 1 |
| 84 | BLADENSBURG READY MIX CONCRETE FACILITY | Hyattsville | Nonmetallic Mineral Product | 2 lbs | 3 |
| 85 | HOLCIM (US) - SPARROWS POINT | Sparrows Point | Nonmetallic Mineral Product | 2 lbs | 1 |
| 86 | BUILDING MATERIALS MANUFACTURING LLC | Baltimore | Petroleum | 1 lbs | 4 |
| 87 | KIRBY ROAD READY MIX CONCRETE | Clinton | Nonmetallic Mineral Product | 1 lbs | 3 |
| 88 | QUIKRETE - PERRYVILLE MD PLANT | Perryville | Nonmetallic Mineral Product | 1 lbs | 1 |
| 89 | EASTALCO ALUMINUM CO PIER | Baltimore | Other | 1 lbs | 1 |
| 90 | PIKE BALTIMORE TERMINAL LLC | Baltimore | Petroleum | 1 lbs | 1 |
| 91 | ELITE COMFORT SOLUTIONS - HAVRE DE GRACE | Havre De Grace | Plastics and Rubber | 1 lbs | 2 |
| 92 | FORT GEORGE G MEADE (RANGE) | Fort George G Meade | Other | 1 lbs | 1 |
| 93 | OLDCASTLE APG MID-ATLANTIC WHITE MARSH MD | White Marsh | Nonmetallic Mineral Product | 0 lbs | 2 |
| 94 | VIENNA GENERATING STATION | Vienna | Electric Utilities | 0 lbs | 2 |
| 95 | OLDCASTLE APG MID-ATLANTIC CROFTON MD | Odenton | Nonmetallic Mineral Product | 0 lbs | 2 |
| 96 | MARYLAND PAVING ROSEDALE LLC | Rosedale | Petroleum | 0 lbs | 2 |
| 97 | CONCRETE PIPE & PRECAST LLC - JESSUP PLANT | Jessup | Nonmetallic Mineral Product | 0 lbs | 1 |
| 98 | QUIKRETE - HAGERSTOWN MD PLANT | Hagerstown | Nonmetallic Mineral Product | 0 lbs | 1 |
| 99 | RINKER MATERIALS HYDRO CONDUIT | Frederick | Nonmetallic Mineral Product | 0 lbs | 1 |
| 100 | MARYLAND PAVING INC | Cockeysville | Petroleum | 0 lbs | 2 |
| 101 | BEYNON SPORTS SURFACES | Hunt Valley | Plastics and Rubber | 0 lbs | 3 |
| 102 | SCHUSTER CONCRETE READY MIX LLC-MONUMENT ST | Baltimore | Nonmetallic Mineral Product | 0 lbs | 4 |
| 103 | MARYLAND PAVING INC | Aberdeen | Petroleum | 0 lbs | 2 |
| 104 | S&G CONCRETE BROOKLYN PLANT | Baltimore | Nonmetallic Mineral Product | 0 lbs | 2 |
| 105 | SCHUSTER CONCRETE READY MIX LLC-SOUTHLAWN LN | Rockville | Nonmetallic Mineral Product | 0 lbs | 4 |
| 106 | SCHUSTER CONCRETE READY MIX LLC-CRONDALL LN | Owings Mills | Nonmetallic Mineral Product | 0 lbs | 3 |
| 107 | SCHUSTER CONCRETE READY MIX LLC-GUILFORD RD | Jessup | Nonmetallic Mineral Product | 0 lbs | 4 |
| 108 | SCHUSTER CONCRETE READY MIX LLC-SHERMAN AVE | Hagerstown | Nonmetallic Mineral Product | 0 lbs | 4 |
| 109 | SCHUSTER CONCRETE READY MIX LLC-VAN DUSEN RD | Laurel | Nonmetallic Mineral Product | 0 lbs | 4 |
| 110 | SCHUSTER CONCRETE READY MIX LLC-SOUTH ST | Frederick | Nonmetallic Mineral Product | 0 lbs | 3 |
| 111 | SCHUSTER CONCRETE READY MIX LLC-HOBBS RD | Denton | Nonmetallic Mineral Product | 0 lbs | 1 |
| 112 | MARYLAND PAVING INC | Finksburg | Petroleum | 0 lbs | 2 |
| 113 | SMO BRYANS ROAD PLANT | Bryans Road | Other | 0 lbs | 3 |
| 114 | SMO LA PLATA PLANT | La Plata | Other | 0 lbs | 3 |
| 115 | SMO MECHANICSVILLE PLANT | Mechanicsville | Other | 0 lbs | 3 |
| 116 | SMO BARSTOW PLANT | Prince Frederick | Other | 0 lbs | 9 |
| 117 | BUREAU OF ALCOHOL TOBACCO FIREARMS & EXPLOSIVES | Beltsville | Other | 0 lbs | 1 |
| 118 | SMO CLINTON PLANT | Clinton | Other | 0 lbs | 3 |
| 119 | NEUTRON PRODUCTS INC. | Dickerson | Chemicals | 0 lbs | 2 |
| 120 | GRIFFITH ENERGY SERVICES - DAMASCUS FUELS PLANT | Damascus | Other | 0 lbs | 3 |
| 121 | U.S. PUBLIC HEALTH SERVICE NATIONAL INSTITUTES OF HEALTH | Bethesda | Other | 0 lbs | 1 |
| 122 | NATIONAL INSTITUTE OF STANDARDS & TECHNOLOGY | Gaithersburg | Other | 0 lbs | 1 |
| 123 | HARFORD SYSTEMS LLC | Aberdeen | Fabricated Metals | 0 lbs | 2 |
| 124 | NOBLE OIL SERVICES INC. | Belcamp | Petroleum Bulk Terminals | 0 lbs | 3 |
| 125 | TILLEY DISTRIBUTION | Belcamp | Chemical Wholesalers | 0 lbs | 1 |
| 126 | BW PAPERSYSTEMS | Cockeysville | Machinery | 0 lbs | 2 |
| 127 | SMO GLEN BURNIE PLANT | Glen Burnie | Other | 0 lbs | 3 |
| 128 | FUCHS N.A. | Hampstead | Food | 0 lbs | 1 |
| 129 | PERRYMAN GENERATING STATION | Perryman | Electric Utilities | 0 lbs | 1 |
| 130 | GRIFFITH ENERGY SERVICES INC SPRING MILL | Westminster | Other | 0 lbs | 3 |
| 131 | GRIFFITH ENERGY SERVICES INC BARE | Westminster | Other | 0 lbs | 9 |
| 132 | PPC LUBRICANTS INC. | Baltimore | Petroleum Bulk Terminals | 0 lbs | 2 |
| 133 | CLOVERLAND FARMS DAIRY | Baltimore | Food | 0 lbs | 3 |
| 134 | US LUBRICANTS BALTIMORE | Baltimore | Petroleum | 0 lbs | 1 |
| 135 | AMG RESOURCES CORP | Baltimore | Primary Metals | 0 lbs | 1 |
| 136 | UNITED OIL INC | Baltimore | Petroleum | 0 lbs | 1 |
| 137 | MARYLAND CHEMICAL CO INC | Baltimore | Chemical Wholesalers | 0 lbs | 2 |
| 138 | POLYSEAL CORP | Baltimore | Plastics and Rubber | 0 lbs | 1 |
| 139 | SMO ANNAPOLIS PLANT | Annapolis | Other | 0 lbs | 3 |
| 140 | BELT PAVING INC | Cumberland | Petroleum | 0 lbs | 1 |
| 141 | PROTENERGY NATURAL FOODS INC. | Cambridge | Food | 0 lbs | 2 |
| 142 | DIXON VALVE & COUPLING CO | Chestertown | Fabricated Metals | 0 lbs | 6 |
| 143 | AMICK FARMS LLC | Hurlock | Food | 0 lbs | 1 |
| 144 | PERDUE FOODS LLC - HURLOCK HATCHERY FEEDMILL & GRANARY | Hurlock | Food | 0 lbs | 3 |
| 145 | GRIFFITH ENERGY SERVICES INC FREDERICK BULK PLANT | Frederick | Other | 0 lbs | 9 |
| 146 | MCCORMICK PAINT WORKS CO | Frederick | Chemicals | 0 lbs | 1 |
| 147 | AMERICAN COMPUTER DEVELOPMENT INC (DBA ACDI) | Frederick | Computers and Electronic Products | 0 lbs | 1 |
| 148 | OLDCASTLE LAWN & GARDEN | Frederick | Wood Products | 0 lbs | 2 |
| 149 | PURINA ANIMAL NUTRITION LLC - HAGERSTOWN | Hagerstown | Food | 0 lbs | 2 |
| 150 | IKO NORTHEAST INC. | Hagerstown | Plastics and Rubber | 0 lbs | 1 |
| 151 | LANCO PENNLAND | Hancock | Food | 0 lbs | 2 |
| 152 | FLOWSERVE FSG | Taneytown | Machinery | 0 lbs | 3 |
| 153 | EVAPCO INC-TANEYTOWN | Taneytown | Machinery | 0 lbs | 3 |
| 154 | LONG LIFE TREATED WOOD INC | Hebron | Wood Products | 0 lbs | 3 |
| 155 | MOUNTAIRE FARMS INC-PRINCESS ANNE FEED MILL | Westover | Food | 0 lbs | 3 |
| 156 | OLDCASTLE LAWN & GARDEN | Pittsville | Wood Products | 0 lbs | 2 |
| 157 | TYSON FARMS INC FEED MILL SNOW HILL | Snow Hill | Food | 0 lbs | 3 |