Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing in Pennsylvania

3SI SECURITY SYSTEMS INC

Loc

MALVERN

50 WORDS LLC

Loc

WEST NORRITON

911 SAFETY EQUIPMENT LLC

Loc

NORRISTOWN

ACUTRONIC USA INC.

Loc

PITTSBURGH

ADDON SERVICES LLC

Loc

CAMP HILL

ADVANCED ACOUSTIC CONCEPTS, LLC

Loc

LEMONT FURNACE

ADVANCED COMPOSITE PRODUCTS, INC.

Loc

HARRISBURG

AERAS LLC

Loc

WEXFORD

AIRCRAFT INSTRUMENTS CO

Loc

DOYLESTOWN

ALIGN PRECISION - PHILADELPHIA, LLC

Loc

HORSHAM

AMERICA'S WORKFORCE SOLUTION LLC

Loc

EASTON

AMERICAN ROBOT CORP

Loc

WHITE HAVEN

AMETEK, INC.

Loc

HARLEYSVILLE

AMPWAVE DEFENSE LLC

Loc

LANCASTER

APOGEE LABS INC

Loc

NORTH WALES

ARBILL INDUSTRIES INC

Loc

PHILADELPHIA

AREVIR ENTERPRISES LLC

Loc

READING

ARGON ST, INC.

Loc

SMITHFIELD

ARGUS INDUSTRIAL LLC

Loc

MOON TOWNSHIP

ARIN TECHNOLOGIES, INC

Loc

BRIDGEVILLE

ASRC FEDERAL FACILITIES LOGISTICS, LLC

Loc

CHAMBERSBURG

ATLAS INSTRUMENT CO INC

Loc

CHAMBERSBURG

AURORA OPTICS INC

Loc

AMBLER

AUTOMATED TARGET SOLUTIONS, INC

Loc

IVYLAND

B & W MACHINE WORKS, INC.

Loc

PERKASIE

BDS SYSTEMS INC.

Loc

DOYLESTOWN

BENIGENIUS LLC

Loc

PHILADELPHIA

BERWIN GROUP LLC

Loc

PHILADELPHIA

BHAYANA BROTHERS LLC

Loc

PITTSBURGH

BILLET INDUSTRIES INC

Loc

YORK

BIRCHRUN LABS, LLC

Loc

BIRCHRUNVILLE

BLACKSTAR LABORATORIES LLC

Loc

MALVERN

BLUE AVIONICS INC

Loc

EXTON

BRANDYWINE PHOTONICS LLC

Loc

WEST CHESTER

CAES MISSION SYSTEMS LLC

Loc

LANCASTER

CAES SYSTEMS LLC

Loc

LANSDALE

CARNEGIE ROBOTICS LLC

Loc

PITTSBURGH

CLANKER INDUSTRIES LLC

Loc

WARRINGTON

CLARKE ANALYTICAL INSTRUMENTS, INC.

Loc

WAYNE

CLEAR ALIGN LLC

Loc

EAGLEVILLE

COLUMBIA RESEARCH LABORATORIES, INC

Loc

WOODLYN

COMPASS SYSTEMS, INC.

Loc

JOHNSTOWN

CORRY MICRONICS, LLC.

Loc

CORRY

CURTISS-WRIGHT DS, INC.

Loc

NEWTOWN

D&H DISTRIBUTING COMPANY

Loc

HARRISBURG

DA PRECISION ARMS LTD CO

Loc

SHIPPENSBURG

DAISY DATA DISPLAYS INC

Loc

MECHANICSBURG

DANIEL H WAGNER ASSOCIATES INC

Loc

EXTON

DATA SYSTEMS ANALYSTS INC

Loc

FEASTERVILLE TREVOSE

DEFENSE TECHNICAL SOLUTIONS LLC

Loc

WAYNE

DELTA INFORMATION SYSTEMS INC

Loc

HORSHAM

DIGITAL PLAZA LLC

Loc

AMBLER

DONTECH INC

Loc

DOYLESTOWN

DRAGONFLY PICTURES, INC.

Loc

ESSINGTON

ECLIPSE SCREENING TECHNOLOGIES LLC

Loc

PITTSBURGH

FEDERAL RESOURCES CORPORATION

Loc

ERIE

FIDELITY TECHNOLOGIES CORPORATION

Loc

READING

FINELINE CIRCUITS INC

Loc

FEASTERVILLE TREVOSE

FISHER SCIENTIFIC COMPANY L.L.C.

Loc

PITTSBURGH

FLIGHT PLAN AEROSPACE LLC

Loc

BRISTOL

FM CAPITAL HOLDINGS, INC

Loc

TRAFFORD

FSR CONSULTING LLC

Loc

LANSDALE

FUSIONIT LLC

Loc

ERIE

GATEKEEPER SYSTEMS USA INC

Loc

BRISTOL

GENERAL DYNAMICS MISSION SYSTEMS, INC.

Loc

PITTSBURGH

GENERAL DYNAMICS MISSION SYSTEMS, INC.

Loc

CHARLEROI

GENERAL DYNAMICS MISSION SYSTEMS, INC.

Loc

CANONSBURG

GENTEX CORPORATION

Loc

SIMPSON

GET YOU ROLLING TOWING & RECOVERY ROAD SIDE SERVICES LLC

Loc

PHILADELPHIA

GREENLEAF CORPORATION

Loc

SAEGERTOWN

HELLBENDER INC

Loc

PITTSBURGH

HII FLEET SUPPORT GROUP LLC

Loc

PHILADELPHIA

HRM USA INC

Loc

WARMINSTER

I2R ELECTRONICS INC

Loc

BREINIGSVILLE

IDSI, LLC

Loc

YORK

IED DETECTION SYSTEMS LLC

Loc

SPRING CITY

INGENTEK, LLC

Loc

RICHBORO

INNOVATIVE SOLUTIONS & SUPPORT INC

Loc

EXTON

INSACO INC

Loc

QUAKERTOWN

ISM SERVICES INCORPORATED

Loc

CARMICHAELS

JEREMY M KISKO

Loc

SMITHFIELD

JOHN E STILES, JR

Loc

HUNTINGDON VALLEY

KENJER INDUSTRIES

Loc

BUTLER

KONGSBERG DEFENSE & AEROSPACE, INC.

Loc

JOHNSTOWN

L3 TECHNOLOGIES, INC.

Loc

BRISTOL

LAKE REGION MICRO ELECTRONICS CORP.

Loc

HONESDALE

LASER-VIEW TECHNOLOGIES INC

Loc

CHESTER SPRINGS

LAUREL TECHNOLOGIES PARTNERSHIP

Loc

JOHNSTOWN

LCR EMBEDDED SYSTEMS LLC

Loc

AUDUBON

LEIDOS INC

Loc

KING OF PRUSSIA

LEIDOS, INC.

Loc

HARRISBURG

LIFE SUPPORT INTERNATIONAL INC

Loc

LANGHORNE

LOCKHEED MARTIN CORPORATION

Loc

KING OF PRUSSIA

LOCKHEED MARTIN CORPORATION

Loc

KING OF PRUSSIA

LOWEN MARINE & INDUSTRIAL LLC

Loc

WILLOW GROVE

MARO ELECTRONICS, INC

Loc

BRISTOL

MATERIALS SCIENCES LLC

Loc

HORSHAM

MAVERICK MACHINE CO., LLC

Loc

TAMAQUA

MESH INC

Loc

OXFORD

METROPOLITAN COMMUNICATIONS, INC.

Loc

EXTON