N2 SERVICES, INC.

OPENLOGIX CORPORATION

CUBIC IT SOLUTIONS INC

PATTON LABS INC.

4-SERV SOLUTIONS, INC.

TESTEK, INC.

MINTH NORTH AMERICA, INC.

H2H SOLUTIONS INC

NGK SPARK PLUGS (U.S.A.), INC.

FAIRWAY ENGINEERING LLC

COMP CONSULTS INC

QUANTUM SOFTWARE ACQUISITION GROUP, LLC

BEHR-HELLA THERMOCONTROL, INC.

DYNAMIC CONTROLS SOLUTIONS INC.

N/A

HOSCO FITTINGS LLC

PRECITEC INC.

KIEKERT USA, INC.

MCSWEENEY ELECTRIC, INC.

N/A

J & B MEDICAL SUPPLY CO INC.

SAME AS ABOVE

ATS ASSEMBLY AND TEST, INC.

SUPERABRASIVES, INC.

DIFFIN-UMLOR & ASSOCIATES

QOMO HITEVISION LLC

AAISD, LLC

INTEGRATED SYSTEMS DESIGN