SCI-TEK CONSULTANTS, INC.

N/A

EXCELLERENT TECHNOLOGY SOLUTIONS, INC.

N/A

THE OPAL MANAGEMENT GROUP LLC

THE OPAL GROUP

LATHIA INVESTMENTS, LLC

EXCELLERENT TECHNOLOGY SOLUTIONS INC

HVL LLC

DOUGLAS LABORATORIES

OMNI FLOW CONSULTING

RIZZO INTERNATIONAL, INC.

L.B. FOSTER COMPANY

AMERICAN ZINC RECYCLING CORP. (F/K/A HORSEHEAD CORP.)

TMD HOLDINGS, LLC

MASCARO SERVICES, INC.

TERATONIX, LLC.

MAISHON LLC

DESMONE & ASSOCIATES, INC.

N/A

CADNETICS PITTSBURGH, LLC

SCA TECHNOLOGIES, LLC

INDUSTRIAL SCIENTIFIC CORPORATION

TRADEMARKVISION USA LLC

TRADEMARKVISION

BIRDBRAIN TECHNOLOGIES LLC

BIRDBRAIN TECHNOLOGIES LLC

LEANFM TECHNOLOGIES INC.

LEANFM TECHNOLOGIES INC.

PENN HILLS VETERINARY CARE AND REHABILITATION

PITTSBURGH PREMIER PET CARE AND REHABILITATION

HISTORICAL SOCIETY OF WESTERN PA

ALLGOVISION, INC.

DUQUESNE UNIVERSITY

JOBUPPER, LLC

N/A

PEOPLES NATURAL GAS COMPANY, LLC

N/A

TIER1, INC.

HOLIDAY PARK ANIMAL HOSPITAL, INC.

N/A

BUCHANAN INGERSOLL & ROONEY PC

PEAK TECHNICAL SERVICES, LP

ROBOTWITS, LLC

N/A

QUANTECH USA, LLC

YOUTH SMILES DENTAL CENTER, LLC

N/A

MARKOVITZ DUGAN & ASSOCIATES

N/A

PERFECT SMILE DENTAL GROUP, PC

N/A

THALES TRANSPORT & SECURITY, INC.

KLH ENGINEERS, INC

CHATHAM UNIVERSITY

N/A

FRANK CALANDRA, INC.

N/A