ALPHA CIRCUIT I LLC · SCHAUMBURG, ILActiveMERCURY PRODUCTS CORP. · SCHAUMBURG, ILActiveSUMMIT INTERCONNECT CHICAGO · SCHAUMBURG, ILActiveTWR SERVICE CORP · SCHAUMBURG, ILActiveFDT IND INC · SCHAUMBURG, ILInactiveFERRO CORP, LIQUID COATINGS & DISPERSIONS · SCHAUMBURG, ILInactiveTHREE J'S IND INC · SCHAUMBURG, ILInactive
Source: U.S. EPA Toxic Release Inventory. Registration does not by itself indicate a health hazard.