| APaction Anodizing & Plating & Polishing CORP Superfund Site | Copiague | NY | — | ◇ UNVERIFIED |
 Advanced Energy Industries | Calabasas | CA | — | ◇ UNVERIFIED |
 Advanced Manufacturing, INC. | Saint Petersburg | FL | — | ◇ UNVERIFIED |
| AMAgility Mfg INC | Sanford | ME | — | ◇ UNVERIFIED |
 Aimtron Systems, LLC D/b/a Target CORP | Pleasant Prairie | WI | — | ◇ UNVERIFIED |
| ACAlphaems CORP | Fremont | CA | — | ◇ UNVERIFIED |
| ACAmbay Circuit, Inc., Dvh Circuits Dba | Van Nuys | CA | — | ◇ UNVERIFIED |
| AWAmli Wallingford | Seattle | WA | — | ◇ UNVERIFIED |
| ADAnalog Devices - Santa Clara Site | Santa Clara | CA | — | ◇ UNVERIFIED |
| AOApct Oc | Placentia | CA | — | ◇ UNVERIFIED |
| AFApex Flooring | Kent | WA | — | ◇ UNVERIFIED |
| AA-tek | Brainerd | MN | — | ◇ UNVERIFIED |
| AMAvantec Manufacturing INC | Orange | CA | — | ◇ UNVERIFIED |
| BABcs Automotive Interface Solutions | Winona | MN | — | ◇ UNVERIFIED |
 Benchmark Electronics | Phoenix | AZ | — | ◇ UNVERIFIED |
| Benchmark Electronics-hudson Div | Hudson | NH | — | ◇ UNVERIFIED |
| Benchmark Electronics Manufacturing Solutions, INC. | Londonderry | NH | — | ◇ UNVERIFIED |
| BCBergquist CO - Big Fork | Bigfork | MN | — | ◇ UNVERIFIED |
| BCBest Circuits INC | Melbourne | FL | — | ◇ UNVERIFIED |
| BCBluff Country Manufacturing | Preston | MN | — | ◇ UNVERIFIED |
| CUCal-comp USA Indiana INC | Logansport | IN | — | ◇ UNVERIFIED |
| CTCalient Technologies INC | Goleta | CA | — | ◇ UNVERIFIED |
| CECartel Electronics INC | Placentia | CA | — | ◇ UNVERIFIED |
| CECascade Engineering Services | Redmond | WA | — | ◇ UNVERIFIED |
| CCCelestica Corporation | Santa Clara | CA | — | ◇ UNVERIFIED |
| CCCelestica Corporation | San Jose | CA | — | ◇ UNVERIFIED |
| CCChannell CORP | Menifee | CA | — | ◇ UNVERIFIED |
| CCircuitronics | Dallas | TX | — | ◇ UNVERIFIED |
| CSCircuits Services, L.l.c. | Chatsworth | CA | — | ◇ UNVERIFIED |
| CICirtech INC | Orange | CA | — | ◇ UNVERIFIED |
| CSCisco Systems Inc-sj-21 | Milpitas | CA | — | ◇ UNVERIFIED |
| CSCisco Systems INC (sj-29) | Milpitas | CA | — | ◇ UNVERIFIED |
| CSCisco Systems Inc-sj-d | San Jose | CA | — | ◇ UNVERIFIED |
| CSCisco Systems Inc- Sycamore Ii | Milpitas | CA | — | ◇ UNVERIFIED |
 Coastal Connections Dba Impact Es - Ventura | Ventura | CA | — | ◇ UNVERIFIED |
| CPComtech Pst Hill Eng. | Topsfield | MA | — | ◇ UNVERIFIED |
| C2Concept 2 Market INC | Pompano Beach | FL | — | ◇ UNVERIFIED |
| CTConverged Telcom LLC | Honolulu | HI | — | ◇ UNVERIFIED |
| CCCopeland Cold Chain LP | Eden Prairie | MN | — | ◇ UNVERIFIED |
| CCCts Corporation of Elkhart | Elkhart | IN | — | ◇ UNVERIFIED |
| CECts Electronics Manufacturing | San Jose | CA | — | ◇ UNVERIFIED |
| CICurtis Instruments (pr) INC | Carolina | PR | — | ◇ UNVERIFIED |
| DZDasan Zhone Solutions INC | Largo | FL | — | ◇ UNVERIFIED |
| DMDca Mfg CORP | Cumberland | WI | — | ◇ UNVERIFIED |
| DPDelphi Packard Electric Sys | Foley | AL | — | ◇ UNVERIFIED |
| DCDelta Circuits Tech INC | Van Nuys | CA | — | ◇ UNVERIFIED |
| DTDelta Tau Data Systems INC | Chatsworth | CA | — | ◇ UNVERIFIED |
 Deltatrak INC. | Modesto | CA | — | ◇ UNVERIFIED |
| DRDetroit Reman | Hibbing | MN | — | ◇ UNVERIFIED |
| DADevore Aviation CORP. | Albuquerque | NM | — | ◇ UNVERIFIED |
