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US MidAtlantic : Pennsylvania - Selective Company List

Contact :   TEL   847-304-4655

Bruce Donnelly   bruce@gdi-solutions.com    (Biography)

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Companies in other MidAtlantic states are on separate pages  (New Jersey, Maryland, Virginia, Delaware, Washington DC, West Virginia, North Carolina)
Headquarters or major subunits located in the state, including foreign-owned subunits.
Company HQ/Sub Website Location
Pennsylvania      <bottom>   maps of PA, NJ, MD, DC, VA, NC, WV Area Representative City State Postal
Allegheny Ludlum Corp. Public subunit http://www.alleghenyludlum.com   Brackenridge PA 15014-1597
Universal Stainless & Alloy Products, Inc. Public http://www.univstainless.com   Bridgeville PA 15017-2705
Tollgrade Communications, Inc. Public http://www.tollgrade.com   Cheswick PA 15024-1010
Millennia Group (The) Private http://www.the-millennia-group.com   Cheswick PA 15024-1330
Tube City, Inc. Private http://www.tubecity.com   Glassport PA 15045-1397
Medrad, Inc. US subsidiary http://www.medrad.com Germany Indianola PA 15051-9759
Black Box Corporation Public http://www.blackbox.com   Lawrence PA 15055-1018
Hussey Copper, Ltd Private http://www.husseycopper.com   Leetsdale PA 15056-1000
Nova Chemicals Corp. US subsidiary http://www.novachem.com Canada Monaca PA 15061-2212
Tuscarora Inc. US subsidiary http://www.tuscarora.com Sweden New Brighton PA 15066-1922
Industrial Scientific Corp. Private http://www.indsci.com   Oakdale PA 15071-1500
Marconi Communications US subsidiary http://www.marconi.com UK - England Warrendale PA 15086
Microbac Laboratories, Inc. Private http://www.microbac.com   Wexford PA 15090
Union Electric Steel Corp. Public subunit http://www.uniones.com   Carnegie PA 15106-1137
USFilter Engineering & Construction US subsidiary http://www.usfilter.com France Moon Township PA 15108
TechRx, Inc. Private http://www.techrx.com   Coraopolis PA 15108
Baker Environmental, Inc. Public subunit http://www.mbakercorp.com   Coraopolis PA 15108
Michael Baker Jr., Inc. / Transportation Division Public subunit http://www.mbakercorp.com   Coraopolis PA 15108-2750
Precise Technology, Inc. Private http://www.precisetech.com   North Versailles PA 15137-2553
Adonix Transcomm, Inc. US subsidiary http://www.adonix.com France Sewickley PA 15143
Cold Metal Products, Inc. Public http://www.coldmetal.com   Sewickley PA 15143
Transtar, Inc. Public subunit http://www.tstarinc.com   Monroeville PA 15146
GAI Consultants, Inc. Private http://www.gaiconsultants.com   Monroeville PA 15146-1334
Compunetics, Inc. Private http://www.compunetics.com   Monroeville PA 15146-1430
IT Group, Inc. (The) Public http://www.theitgroup.com   Monroeville PA 15146-2743
Compunetix, Inc. / Communications Systems Division Private Subunit http://www.compunetix.com   Monroeville PA 15146-4236
Wabtec Corp. Public http://www.wabtec.com   Wilmerding PA 15148-1036
WRS Motion Picture and Video Laboratory Private http://www.wrslabs.com   Pittsburgh PA 15205
Calgon Carbon Corp. Public http://www.calgoncarbon.com   Pittsburgh PA 15205-1131
Rapidigm, Inc. Private http://www.rapidigm.com   Pittsburgh PA 15205-1312
Bayer Corp. / Industrial Chemicals Division US subsidiary http://www.bayerus.com/industrial/ Germany Pittsburgh PA 15205-9707
Bayer Corp. US subsidiary http://www.bayerus.com Germany Pittsburgh PA 15205-9741
Eichleay Engineers & Constructors Inc. Private Subunit http://www.eichleay.com   Pittsburgh PA 15206-4407
Management Science Associates, Inc. Private http://www.msa.com   Pittsburgh PA 15206-4490
Matthews International Corp. Public http://www.matw.com   Pittsburgh PA 15212-5838
Filmet, Inc. Private http://www.filmet.com   Pittsburgh PA 15218-2500
DQE, Inc. Public http://www.dqe.com   Pittsburgh PA 15219
Koppers Industries, Inc. Private http://www.koppers.com   Pittsburgh PA 15219-1800
INDSPEC Chemical Corp. Public subunit http://www.indspec-chem.com   Pittsburgh PA 15219-1923
Dietrich Metal Framing, Inc. Public subunit http://www.dietrichmetalframing.com   Pittsburgh PA 15219-2502
United States Steel Corp. Public http://www.uss.com   Pittsburgh PA 15219-2702
Union Switch & Signal Inc. US subsidiary http://www.switch.com Italy Pittsburgh PA 15219-3104
Cable Design Technologies, Inc. Public http://www.cdtc.com   Pittsburgh PA 15220
Computer Enterprises, Inc. Private http://www.ceiamerica.com   Pittsburgh PA 15220-1203
iGATE Capital Corp. Public http://www.igatecapital.com   Pittsburgh PA 15220-2700
PEP Modular Computers, Inc. US subsidiary http://www.pep.com Germany Pittsburgh PA 15220-2783
Respironics, Inc. Public http://www.respironics.com   Pittsburgh PA 15221-4401
General Nutrition Companies, Inc. US subsidiary http://www.gnc.com Netherlands Pittsburgh PA 15222
Mylan Laboratories, Inc. Public http://www.mylan.com   Pittsburgh PA 15222
Reunion Industries, Inc. Public http://www.reunionindustries.com   Pittsburgh PA 15222
Copperweld Corp. Public subunit http://www.ltv-copperweld.com   Pittsburgh PA 15222-1211
Carbide Graphite Group, Inc. (The) Public http://www.cggi.com   Pittsburgh PA 15222-1435
FreeMarkets, Inc. Public http://www.freemarkets.com   Pittsburgh PA 15222-2602
printCafe Systems, Inc. Private http://www.printcafe.com   Pittsburgh PA 15222-4600
Stargate, Inc. Private http://www.stargate.net   Pittsburgh PA 15222-4656
Logica Carnegie Group US subsidiary http://www.cgi.com UK - England Pittsburgh PA 15222-5405
Allegheny Technologies Inc. Public http://www.alleghenytechnologies.com   Pittsburgh PA 15222-5479
Matthews International Corp. / Bronze Division Public subunit http://www.matthewsbronze.com   Pittsburgh PA 15226-1040
Elkem Metals Co. L.P. US subsidiary http://www.elkem.com Norway Pittsburgh PA 15230-0266
Westinghouse Electric Co. US subsidiary http://www.esbu.westinghouse.com UK - England Pittsburgh PA 15230-0355
Mine Safety Appliances Co., Inc. Public http://www.msanet.com   Pittsburgh PA 15230-0427
Mine Safety Appliances Co., Inc. / Instrument Divi Public subunit http://www.msanet.com   Pittsburgh PA 15230-0427
Michael Baker Corp. Public http://www.mbakercorp.com   Pittsburgh PA 15231-0259
PDG Environmental, Inc. Public http://www.pdge.com   Pittsburgh PA 15235-5068
Spang & Co. Private http://www.spang.com   Pittsburgh PA 15238
Chromalox, Inc. Private Subunit http://www.chromaloxheating.com   Pittsburgh PA 15238
Lake Region Medical, Inc. Private Subunit http://www.lakergn.com   Pittsburgh PA 15238-2836
Aerotech, Inc. Private http://www.aerotech.com   Pittsburgh PA 15238-2897
Westinghouse Process Control, Inc. Public subunit http://www.westinghousepc.com   Pittsburgh PA 15238-2986
GENCO Distribution System Private http://www.genco.com   Pittsburgh PA 15238-3274
Pittsburgh Corning Corp. Public subunit http://www.pittsburghcorning.com   Pittsburgh PA 15239-2799
CONSOL Energy, Inc. US subsidiary http://www.consolenergy.com Germany Pittsburgh PA 15241
Mellon Financial Corp. Public http://www.mellon.com   Pittsburgh PA 15258-0001
PPG Industries, Inc. Public http://www.ppg.com   Pittsburgh PA 15272-0001
PPG Industries, Inc. / Chemicals Group Public subunit http://www.ppg.com   Pittsburgh PA 15272-0001
PPG Industries, Inc. / Coatings Group Public subunit http://www.ppg.com   Pittsburgh PA 15272-0001
PPG Industries, Inc. / Fiber Glass Division Public subunit http://www.ppg.com   Pittsburgh PA 15272-0001
Matthews International Corp. / Graphic Systems Div Public subunit http://www.matw.com   Pittsburgh PA 15275-1002
Resco Products, Inc. Private http://www.rescoproducts.com   Pittsburgh PA 15276
Spartech Polycom, Inc. Public subunit http://www.spartech.com   Washington PA 15301-4524
Dynamet Inc. Public subunit http://www.dynamet.com   Washington PA 15301-6197
Hankison International Private Subunit http://www.hankisonintl.com   Canonsburg PA 15317-1700
ANSYS, Inc. Public http://www.ansys.com   Canonsburg PA 15317-9565
Invensys Metering Systems US subsidiary http://www.sensus.com UK - England Uniontown PA 15401-2494
Oglevee, Ltd Private http://www.oglevee.com   Connellsville PA 15425-3851
Sunrise Medical, Inc. / Respiratory Products Divis Public subunit http://www.sunrisemedical.com   Somerset PA 15501-2125
AMI Doduco, Inc. Public subunit http://www.amidoduco.com   Export PA 15632-8908
Elliott Co., Inc. Private http://www.elliott-turbo.com   Jeannette PA 15644-1473
Kennametal Inc. / Mining and Construction Division Public subunit http://www.kennametal.com   Latrobe PA 15650
Kennametal Inc. Public http://www.kennametal.com   Latrobe PA 15650-0231
Timken Latrobe Steel Public subunit http://www.timkenlatrobe.com   Latrobe PA 15650-3294
Breeze Industrial Products Public subunit http://www.breezeclamps.com   Saltsburg PA 15681
Powerex, Inc. Public subunit http://www.pwrx.com   Youngwood PA 15697-1800
FMC Corp. / Food Systems & Handling Division Public subunit http://www.fmcsyntron.com   Homer City PA 15748-1361
Morgan AM&T / Pure Carbon Division US subsidiary http://www.mamat.com UK - England Saint Marys PA 15857-1422
Keystone Powdered Metal Co. Private http://www.keystonepm.com   Saint Marys PA 15857-1661
St. Marys Carbon Co. Private http://www.stmaryscarbon.com   Saint Marys PA 15857-1696
Johnstown America Corp. Private http://www.johnstownamerica.com   Johnstown PA 15901-1531
DRS Laurel Technologies Public subunit http://www.drs.com   Johnstown PA 15904-1134
Concurrent Technologies Corp. Private http://www.ctc.com   Johnstown PA 15904-1935
L. Robert Kimball & Associates, Inc. Private http://www.lrkimball.com   Ebensburg PA 15931-1048
Magnetics, Inc. Private Subunit http://www.mag-inc.com   Butler PA 16003
Genesis Worldwide II, Inc. Private http://www.gen-world.com   Callery PA 16024
Penn United Technology, Inc. Private http://www.pennunited.com   Saxonburg PA 16056
II-VI Inc. Public http://www.ii-vi.com   Saxonburg PA 16056-9499
Allegheny Plastics, Inc. Private http://www.allegheny.com   Cranberry Township PA 16066-1304
GA Industries, Inc. Private http://www.gaindustries.com   Cranberry Township PA 16066-3696
CATTRON Group, Inc. Private http://www.cattron-theimeg.com   Sharpsville PA 16150-1126
Oberg Industries Private http://www.oberg.com   Freeport PA 16229-0315
Miller-Dalloz Fall Protection US subsidiary http://www.cdalloz.com France Franklin PA 16323-1941
National Forge Co. Private http://www.nationalforge.com   Irvine PA 16329
PHB, Inc. Private http://www.phbcorp.com   Fairview PA 16415-1899
Spectrum Control, Inc. Public http://www.spectrumcontrol.com   Fairview PA 16415-2829
Port Erie Plastics, Inc. Private http://www.porterie.com   Harborcreek PA 16421-1098
Greenleaf Corp. Private http://www.greenleafcorporation.com   Saegertown PA 16433
Snap-tite, Inc. / Solenoid Valve Division Private Subunit http://www.snap-tite.com   Erie PA 16505-1023
Snap-tite, Inc. Private http://www.snap-tite.com   Erie PA 16506-2302
Plastek Group Private http://www.plastekgroup.com   Erie PA 16506-2920
Eriez Magnetics Private http://www.eriez.com   Erie PA 16514-0608
GE Transportation Systems Public subunit http://www.getransportation.com   Erie PA 16531-0001
New PIG Corp. Private http://www.newpig.com   Tipton PA 16684
Zippo Manufacturing Company Private http://www.zippo.com   Bradford PA 16701
Kane Magnetics International, Inc. Private http://www.kanemagnetics.com   Kane PA 16735-1068
RUTGERS Organics Corp. US subsidiary http://www.ruetgers-organics-corp.com Germany State College PA 16801-7488
C-COR.net Corp. Public http://www.c-cor.net   State College PA 16801-7530
ACCU WEATHER, Inc. Private http://www.accuweather.com   State College PA 16803-2215
Supelco, Inc. Public subunit http://www.sigma-aldrich.com   Bellefonte PA 16823
Adelphia Communications Corp. Public http://www.adelphia.com   Coudersport PA 16915
Adelphia Business Solutions, Inc. Public http://www.adelphia-abs.com   Coudersport PA 16915-1768
TVC Communications Private Subunit http://www.tvcinc.com   Annville PA 17003
Freedom Forge Corp. Private http://www.freedomforge.com   Burnham PA 17009-1644
Standard Steel Private Subunit http://www.standardsteel.com   Burnham PA 17009-1698
Harsco Corp. Public http://www.harsco.com   Camp Hill PA 17011-2599
Carlisle SynTec Inc. Public subunit http://www.carlisle-syntec.com   Carlisle PA 17013
Advantica Stoner US subsidiary http://www.stoner.com UK - England Carlisle PA 17013-0086
CTS Reeves Public subunit http://www.ctscorp.com   Carlisle PA 17013-2248
AGFA NDT, Inc. US subsidiary http://www.agfandt.com Belgium Lewistown PA 17044-9344
EUR Systems Private http://www.eursystems.com   Mechanicsburg PA 17055
Select Medical Corp. Public http://www.selectmedicalcorp.com   Mechanicsburg PA 17055
Fry Communications Private http://www.frycomm.com   Mechanicsburg PA 17055-3198
Harsco Corp. / Gas and Fluid Control Group Public subunit http://www.taylorwharton.com   Mechanicsburg PA 17055-4379
Corning Frequency Control, Inc. Public subunit http://www.ofc.com   Mount Holly Springs PA 17065-1821
Tyco Electronics Public subunit http://www.tycoelectronics.com   Harrisburg PA 17105
Gannett Fleming, Inc. Private http://www.gannettfleming.com   Harrisburg PA 17106-7100
D&H Distributing Co., Inc. Private http://www.dandh.com   Harrisburg PA 17110
Dayton Parts, Inc. Public subunit http://www.daytonparts.com   Harrisburg PA 17110-2908
Synertech Private Subunit http://www.synertechsystems.com   Harrisburg PA 17110-9423
Phoenix Contact Inc. US subsidiary http://www.phoenixcon.com Germany Harrisburg PA 17111-0100
GS Electric Public subunit http://www.gselectric.com   Chambersburg PA 17201
TB Wood's, Inc. Public http://www.tbwoods.com   Chambersburg PA 17201-1763
JLG Industries, Inc. Public http://www.jlg.com   Mc Connellsburg PA 17233-9533
Grove Worldwide Private http://www.groveworldwide.com   Shady Grove PA 17256-0021
Landis Gardner Public subunit http://www.landisgardner.com   Waynesboro PA 17268-2050
Gichner Shelter Systems Private http://www.gichner.com   Dallastown PA 17313-0481
FCI Berg Electronics Corp. US subsidiary http://www.fciconnect.com France Etters PA 17319-9351
Adhesives Research, Inc. Private http://www.adhesivesresearch.com   Glen Rock PA 17327-0100
Topflight Corp. Private http://www.topflight.com   Glen Rock PA 17327-8625
Stewart Connector Systems, Inc. Public subunit http://www.stewartconnector.com   Glen Rock PA 17327-9199
CCX, Inc. / Hanover Wire Cloth Division Private Subunit http://www.hanoverwire.com   Hanover PA 17331-2027
General Dynamics OTS (Pennsylvania), Inc. Public subunit www.generaldynamics.com   Red Lion PA 17356-1426
Graham Packaging Company Private http://www.grahampackaging.com   York PA 17402
Svedala Industries, Inc. / Grinding Division US subsidiary http://www.svedala.com Finland York PA 17403-1410
Dentsply International Inc. Public http://www.dentsply.com   York PA 17404-3880
Dentsply International Inc. / Trubyte Division Public subunit http://trubyte.dentsply.com/   York PA 17404-3880
York International Corp. Public http://www.york.com   York PA 17405
FKI Industries, Inc. / Chain and Lifting Products US subsidiary http://www.accochain.com UK - England York PA 17405-0792
United Defense Industries, Inc. / Ground Systems D Public subunit http://www.uniteddefense.com   York PA 17405-1512
New Standard Corp. Private http://www.newstandard.com   York PA 17406
D & E Communications Private http://www.dejazzd.com   Ephrata PA 17522
Fenner Drives US subsidiary http://www.fennerdrives.com UK - England Manheim PA 17545-1747
MapQuest.com, Inc. Public subunit http://www.mapquest.com   Mountville PA 17554-1542
Berk-Tek US subsidiary http://www.berktek.com France New Holland PA 17557-8303
Thermacore, Inc. Public subunit http://www.thermacore.com   Lancaster PA 17601-4275
BURLE Industries, Inc. Private http://www.burle.com   Lancaster PA 17601-5688
Philips Communication, Security and Imaging US subsidiary http://www.philipscsi.com Netherlands Lancaster PA 17601-5814
Lancaster Laboratories, Inc. Private Subunit http://www.lancasterlabs.com   Lancaster PA 17601-5994
Kerr Group, Inc. Private http://www.kerrgroup.com   Lancaster PA 17602-2104
Herley Industries, Inc. Public http://www.herley.com   Lancaster PA 17603-4025
Blue M Public subunit http://www.bluem.com   Williamsport PA 17701
Lunaire Limited Public subunit http://www.lunaire.com   Williamsport PA 17701
Textron Lycoming Public subunit http://www.lycoming.textron.com   Williamsport PA 17701-4472
Gruenberg Oven Co., Inc. Public subunit http://www.lunaire.com   Williamsport PA 17701-5500
Brodart Co. Private http://www.brodart.com   Williamsport PA 17705-0001
Andritz, Inc. US subsidiary http://www.andritz-na.com Austria Muncy PA 17756-1227
JPM Company (The) Public http://www.jpmco.com   Lewisburg PA 17837-8822
Bethlehem Steel Corp. Public http://www.bethsteel.com   Bethlehem PA 18016-7600
Mannesmann Rexroth Corp. / Industrial Hydraulics D US subsidiary http://www.us.rexroth.com Germany Bethlehem PA 18017-2131
HYDAC International Private http://www.hydacusa.com   Bethlehem PA 18017-2146
F.L. Smidth US subsidiary http://www.fullerco.com Denmark Bethlehem PA 18017-2188
B. Braun Medical Inc. US subsidiary http://www.bbraunusa.com Germany Bethlehem PA 18018
Pentamation Enterprises, Inc. Public subunit http://www.pentamation.com   Bethlehem PA 18018-5716
Binney & Smith Inc. Private Subunit http://www.crayola.com   Easton PA 18040
Knoll, Inc. Private http://www.knoll.com   East Greenville PA 18041
Paragon Technologies, Inc. Public http://www.sihs.com   Easton PA 18044-0070
Allen Organ Co. Public http://www.allenorgan.com   Macungie PA 18062-1165
Essroc Corp. US subsidiary http://www.essroc.com Italy Nazareth PA 18064
Rodale, Inc. Private http://www.rodale.com   Emmaus PA 18098-0099
Polymer Dynamics, Inc. Private http://www.pdi-usa.com   Allentown PA 18103
Penn Treaty American Corp. Public http://www.penntreaty.com   Allentown PA 18103
Agere Systems, Inc. Public http://www.agere.com   Allentown PA 18103-3229
Mack Trucks, Inc. Private http://www.macktrucks.com   Allentown PA 18105-5000
Mack Trucks, Inc. / MackPower Division Private Subunit http://www.macktrucks.com/mackpower   Allentown PA 18105-5000
Akrion Private http://www.akrion.com   Allentown PA 18106-9268
Sanbor Corp. Private http://www.sanbor.com   Allentown PA 18106-9336
Air Products and Chemicals, Inc. Public http://www.airproducts.com   Allentown PA 18195-1501
Air Products and Chemicals, Inc. / Chemicals Group Public subunit http://www.airproducts.com   Allentown PA 18195-1501
Air Products and Chemicals, Inc. / Gases and Equip Public subunit http://www.airproducts.com   Allentown PA 18195-1501
KAMA Corp. Public subunit http://www.kamacorp.com   Hazleton PA 18201-7754
Laird Technologies, Inc. US subsidiary http://www.lairdtech.com UK - England Delaware Water Gap PA 18327-0650
Aventis Pasteur USA US subsidiary http://www.aventispasteur.com France Swiftwater PA 18370-0187
Anemostat Public subunit http://www.anemostat.com   Scranton PA 18504
Commonwealth Telephone Enterprises, Inc. Public http://www.ct-enterprises.com   Dallas PA 18612-9745
Schott Glass Technologies Inc. US subsidiary http://www.us.schott.com/sgt Germany Duryea PA 18642-2036
Altec Industries, Inc. / Eastern Division Private Subunit http://www.altec.com   Plains PA 18705-3821
OSRAM SYLVANIA / Chemicals and Metallurgical Divis US subsidiary http://www.sylvania.com Germany Towanda PA 18848
Penn Color, Inc. Private http://www.penncolor.com   Doylestown PA 18901-2399
Severn Trent Water Purification, Inc. US subsidiary http://www.severntrentservices.com UK - England Colmar PA 18915-9727
PennEngineering Public http://www.penn-eng.com   Danboro PA 18916
PennEngineering / PEM Fastening Systems Division Public subunit http://www.pemnet.com   Danboro PA 18916
Talk America Holdings, Inc. Public http://www.talk.com   New Hope PA 18938-1079
L-3 Communications Corp. / Telemetry East Division Public subunit http://www.l-3com.com/te   Newtown PA 18940-1803
Goodrich Corporation / France Compressor Products Public subunit http://www.francecompressor.com   Newtown PA 18940-1821
ICT Group, Inc. Public http://www.ictgroup.com   Newtown PA 18940-4000
Scott Specialty Gases Private http://www.scottgas.com   Plumsteadville PA 18949-0310
AM Communications, Inc. Public http://www.amcomm.com   Quakertown PA 18951-2107
Environmental Tectonics Public http://www.etcusa.com   Southampton PA 18966
CW Industries Private http://www.cwind.com   Southampton PA 18966-3838
Draeger Medical, Inc. US subsidiary http://www.draegermedical.com Germany Telford PA 18969-1042
Accu-Sort Systems, Inc. Private http://www.accusort.com   Telford PA 18969-1196
Sabre Systems, Inc. Private http://www.sabresys.com   Warminster PA 18974-3229
ABB Automation / Instrumentation Division US subsidiary http://www.abb.com/automation Switzerland Warminster PA 18974-4974
Judge Group, Inc. (The) Public http://www.judge.com   Bala Cynwyd PA 19004
Pegasus Communications Corp. Public http://www.pgtv.com   Bala Cynwyd PA 19004
Purolite Co. US subsidiary http://www.puroliteusa.com UK - Wales Bala Cynwyd PA 19004-1702
Primavera Systems, Inc. Private http://www.primavera.com   Bala Cynwyd PA 19004-3481
Dunmore Corp. Private http://www.dunmore.com   Bristol PA 19007-1620
Selas Corp. of America Public http://www.selas.com   Dresher PA 19025
McNeil Consumer Health Care Public subunit http://www.fw.mcn-us.jnj.com   Fort Washington PA 19034-2299
Severn Trent Laboratories, Inc. US subsidiary http://www.stl-inc.com UK - England Fort Washington PA 19034-2707
ImageMax, Inc. Public http://www.imagemax.com   Fort Washington PA 19034-3409
Pilling Surgical Co. Public subunit http://www.pillingsurgical.com   Horsham PA 19044-1227
VerticalNet, Inc. Public http://www.verticalnet.com   Horsham PA 19044-2265
SCIREX Corp. Private http://www.scirex.com   Horsham PA 19044-3405
Envirosource, Inc. Public http://www.enso.net   Horsham PA 19044-3422
Thomas Technology Solutions, Inc. Private Subunit http://www.thomastechsolutions.com   Horsham PA 19044-3502
SPS Technologies, Inc. Public http://www.spstech.com   Jenkintown PA 19046
Technitrol, Inc. Public http://www.technitrol.com   Trevose PA 19053-2519
WorldGate Communications, Inc. Public http://www.wgate.com   Trevose PA 19053-6644
Hercules, Inc. / BetzDearborn Division Public subunit http://www.betzdearborn.com   Trevose PA 19053-6742
Pinkerton Computer Consultants, Inc. Private http://www.pcci.com   Trevose PA 19053-6940
Foamex International, Inc. Public http://www.foamex.com   Linwood PA 19061-3921
Prophet 21, Inc. Public http://www.p21.com   Yardley PA 19067-1594
Messer Gas Technology & Services Group US subsidiary http://www.mgindustries.com Germany Morrisville PA 19067-3613
Kenexa Corp. Private http://www.kenexa.com   Wayne PA 19087
Wyeth Pharmaceuticals Public subunit http://www.wyeth.com/divisions/wty_pharma.asp   Saint Davids PA 19087
SunGard Data Systems Inc. Public http://www.sungard.com   Wayne PA 19087-1572
SunGard Availability Services Public subunit http://www.recovery.sungard.com   Wayne PA 19087-1572
SunGard Planning Solutions Public subunit http://www.drexperts.com   Wayne PA 19087-1572
Triumph Group, Inc. Public http://www.triumphgrp.com   Wayne PA 19087-1593
Devon Consulting, Inc. Private http://www.devonconsulting.com   Wayne PA 19087-1898
Safeguard Scientifics, Inc. Public http://www.safeguard.com   Wayne PA 19087-1935
INTERNATIONAL GROUP, INC. (THE) Private http://www.igiwax.com   Wayne PA 19087-2544
Airgas, Inc. Public http://www.airgas.com   Radnor PA 19087-5283
Asplundh Tree Expert Co. Private http://www.asplundh.com   Willow Grove PA 19090
Kulicke & Soffa Public http://www.kns.com   Willow Grove PA 19090-1795
Lockheed Martin Management Data Systems Public subunit http://mds.external.lmco.com   Philadelphia PA 19101-8048
Comcast Corp. Public http://www.comcast.com   Philadelphia PA 19102-2100
Alliance Consulting Group, Inc. Private http://www.alliance-consulting.com   Philadelphia PA 19103
Rosenbluth International Private http://www.rosenbluth.com   Philadelphia PA 19103
FMC Corp. Public http://www.fmc.com   Philadelphia PA 19103
Hunt Corp. Public http://www.hunt-corp.com   Philadelphia PA 19103
FMC BioPolymer Public subunit http://www.fmc.com   Philadelphia PA 19103
Sunoco, Inc. / Chemicals Division Public subunit http://www.sunocochem.com   Philadelphia PA 19103
Sunoco, Inc. Public http://www.sunocoinc.com   Philadelphia PA 19103-1628
CDI Corp. Public http://www.cdicorp.com   Philadelphia PA 19103-2713
ATOFINA Chemicals, Inc. US subsidiary http://www.atofinachemicals.com France Philadelphia PA 19103-3231
Day & Zimmermann Group, Inc. Private http://www.dayzim.com   Philadelphia PA 19103-3638
Day & Zimmermann International, Inc. Private Subunit http://www.dayzim.com   Philadelphia PA 19103-3638
FMC Corp. / Agricultural Products Group Public subunit http://www.fmc.com   Philadelphia PA 19103-7501
FMC Corp. / Pharmaceutical Division Public subunit http://www.avicel.com   Philadelphia PA 19103-7501
Strategic Management Group, Inc. Private http://www.smginc.com   Philadelphia PA 19104-2614
Pennoni Associates Inc. Private http://www.pennoni.com   Philadelphia PA 19104-2897
Institute for Scientific Information US subsidiary http://www.isinet.com Canada Philadelphia PA 19104-3389
Nelson Information Services Private http://www.nelsoninfoservices.com   Philadelphia PA 19106
Rohm and Haas Co. Public http://www.rohmhaas.com   Philadelphia PA 19106-2399
Lippincott, Williams, Wilkins US subsidiary http://www.lww.com Netherlands Philadelphia PA 19106-3620
ARAMARK Corporation Public http://www.aramark.com   Philadelphia PA 19107
HP Bluestone Public subunit http://www.hp.bluestone.com   Philadelphia PA 19113-1597
PCI Services Public subunit http://www.pciservices.com   Philadelphia PA 19114
SPD Technologies, Inc. Public subunit http://www.spdtech.com   Philadelphia PA 19116-4299
JWS Delavau Co., Inc. Private http://www.delavau.com   Philadelphia PA 19154-2105
CIGNA Corporation Public http://www.cigna.com   Philadelphia PA 19192
AMETEK, Inc. Public http://www.ametek.com   Paoli PA 19301
Dermik Laboratories, Inc. US subsidiary http://www.dermik.com France Berwyn PA 19312
PQ Corporation Private http://www.pqcorp.com   Berwyn PA 19312
Triton PCS Holdings, Inc. Public http://www.tritonpcs.com   Berwyn PA 19312-1177
Vertex Inc. Private http://www.vertexinc.com   Berwyn PA 19312-1195
JUMO Process Control, Inc. US subsidiary http://www.jumousa.com Germany Coatesville PA 19320-1895
Bethlehem Lukens Plate Public subunit http://www.bethsteel.com   Coatesville PA 19320-4006
Xerox Connect, Inc. Public subunit http://www.xeroxconnect.com   Exton PA 19341-1117
Bentley Systems, Inc. Private http://www.bentley.com   Exton PA 19341-1151
West Pharmaceutical Services, Inc. Public http://www.westpharma.com   Lionville PA 19341-1320
Alti America, Inc. Private http://www.altiamerica.com   Exton PA 19341-1330
Sartomer Co., Inc. US subsidiary http://www.sartomer.com France Exton PA 19341-2530
LNP Engineering Plastics, Inc. Public subunit http://www.lnp.com   Exton PA 19341-2546
Automated Financial Systems, Inc. Private http://www.afsvision.com   Exton PA 19341-2872
MG Industries US subsidiary http://www.mgindustries.com Germany Malvern PA 19355
DecisionOne Corp. Private http://www.decisionone.com   Frazer PA 19355
DentalEZ Group Private http://www.dentalez.com   Malvern PA 19355
Vishay Intertechnology, Inc. Public http://www.vishay.com   Malvern PA 19355
United Messaging, Inc. Private http://www.unitedmessaging.com   Malvern PA 19355-1212
Siemens Medical Solution Health Services Corporati US subsidiary http://www.smed.com Germany Malvern PA 19355-1406
Systems & Computer Technology Corp. Public http://www.sctcorp.com   Malvern PA 19355-1408
Systems & Computer Technology Corp. / Technology M Public subunit http://www.sctcorp.com   Malvern PA 19355-1408
IKON Office Solutions, Inc. Public http://www.ikon.com   Malvern PA 19355-1453
Sanchez Computer Associates, Inc. Public http://www.sanchez.com   Malvern PA 19355-1482
QVC, Inc. Public subunit http://www.qvc.com   West Chester PA 19380
Roy F. Weston, Inc. Public http://www.rfweston.com   West Chester PA 19380-0903
Cephalon, Inc. Public http://www.cephalon.com   West Chester PA 19380-4249
Amkor Technology, Inc. Public http://www.amkor.com   West Chester PA 19380-5964
Electronics Boutique Holdings Corp. Public http://www.ebworld.com   West Chester PA 19382
VFL Technology Corp. Private http://www.vfltech.com   West Chester PA 19382-7594
Henkel Corporation US subsidiary http://www.henkelcorp.com Germany Gulph Mills PA 19406
C-E Minerals, Inc. US subsidiary http://www.ceminerals.com France King of Prussia PA 19406
XRT, Inc. US subsidiary http://www.xrt.com France King of Prussia PA 19406
Universal Health Services, Inc. Public http://www.uhsinc.com   King of Prussia PA 19406
Aventis Behring LLC US subsidiary http://www.aventisbehring.com France King of Prussia PA 19406-0901
Dalloz Safety, Inc. US subsidiary http://www.dallozsafety.com France King of Prussia PA 19406-1334
InterDigital Communications Corp. Public http://www.interdigital.com   King of Prussia PA 19406-1409
TeleSpectrum Worldwide, Inc. Public http://www.telespectrum.com   King of Prussia PA 19406-2831
C&D Technologies, Inc. Public http://www.cdtechno.com   Blue Bell PA 19422-1952
Henkels & McCoy, Inc. Private http://www.henkelsandmccoy.com   Blue Bell PA 19422-1958
Yarway Corp. Public subunit http://www.tycovalves.com   Blue Bell PA 19422-2362
Unisys Corp. Public http://www.unisys.com   Blue Bell PA 19424-0001
Unisys Corp. / Global Industries Public subunit http://www.unisys.com   Blue Bell PA 19424-0001
UTI Corp. Private http://www.uticorporation.com   Collegeville PA 19426-2112
Superior Tube Co. Private http://www.superiortube.com   Collegeville PA 19426-3112
Synygy, Inc. Private http://www.synygy.com   Conshohocken PA 19428
Breakaway Solutions, Inc. Public http://www.breakaway.com   Conshohocken PA 19428
Quaker Chemical Corp. Public http://www.quakerchem.com   Conshohocken PA 19428
CECO Environmental Corp. Public http://www.cecoenviro.com   Conshohocken PA 19428-1001
Hale Products, Inc. Public subunit http://www.haleproducts.com   Conshohocken PA 19428-1954
PennEngineering / Pittman Motors Division Public subunit http://www.pittmannet.com   Harleysville PA 19438-2007
Met-Pro Corp. Public http://www.met-pro.com   Harleysville PA 19438-2018
Brooks Instrument Public subunit http://www.brooksinstrument.com   Hatfield PA 19440-0903
Greene, Tweed & Co., Inc. Private http://www.gtweed.com   Kulpsville PA 19443
Teva Pharmaceuticals USA, Inc. US subsidiary http://www.tevausa.com Israel North Wales PA 19454
HealthAnswers, Inc. Private http://www.healthanswersinc.com   North Wales PA 19454
Merck & Co., Inc. / U.S. Human Health Division Public subunit http://www.merck.com   North Wales PA 19454
Triumph Controls, Inc. Public subunit http://www.triumph-controls.com   North Wales PA 19454-4137
SEI Investments Company Public http://www.seic.com   Oaks PA 19456
Teleflex, Inc. Public http://www.teleflex.com   Plymouth Meeting PA 19462-1075
Wetherill Associates, Inc. Private http://www.wai-wetherill.com   Royersford PA 19468
Sermatech International, Inc. Public subunit http://www.sermatech.com   Limerick PA 19468-1699
Houghton International, Inc. Private http://www.houghtonintl.com   Valley Forge PA 19482
Saint-Gobain Vetrotex America / Fiber Glass Reinfo US subsidiary http://www.vetrotexamerica.com France Valley Forge PA 19482-0860
Alco Industries, Inc. Private http://www.alcoind.com   Valley Forge PA 19482-0937
Integrated Circuit Systems, Inc. Public http://www.icst.com   Valley Forge PA 19482-0968
Merck & Co., Inc. / Research Labs Division Public subunit http://www.merck.com   West Point PA 19486-0004
Cabot Corp. / Performance Materials Public subunit http://www.cabot-corp.com/cpm   Boyertown PA 19512
STV Group, Inc. Private http://www.stvinc.com   Douglassville PA 19518-8713
RAM Industries, Inc. Private http://www.ramusa.com   Leesport PA 19533-0629
GAI-Tronics Corp. Public subunit http://www.gai-tronics.com   Mohnton PA 19540-1503
TIMET Public subunit http://www.timet.com   Morgantown PA 19543
International Trepanation Advocacy Group Private http://www.trepan.com   Wernersville PA 19565-0065
Quadrant Engineering Plastic Products US subsidiary http://www.quadrantepp.com Switzerland Reading PA 19605
Fidelity Technologies Corp. Private http://www.fidelitytech.com   Reading PA 19605-2961
Arrow International, Inc. Public http://www.arrowintl.com   Reading PA 19605-9606
Dana Corp. / Parish Structural Products Division Public subunit http://www.dana.com   Reading PA 19612-3459
Yuasa, Inc. US subsidiary http://www.yuasainc.com Japan Reading PA 19612-4145
Carpenter Technology Corp. Public http://www.cartech.com   Reading PA 19612-4662
KB Alloys, Inc. Private http://www.kballoys.com   Reading PA 19612-4927
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