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US MidAtlantic : Maryland - 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 - Virginia, Pennsylvania, New Jersey, Delaware, Washington DC, West Virginia, North Carolina
Headquarters or major subunits located in the state, including foreign-owned subunits.
Company HQ/Sub Website

Location
Maryland    <bottom>   maps of PA, NJ, MD, DC, VA, NC, WV Area Representative City State Zip
Comptek PRB Associates, Inc. Private Subunit http://www.prb.net   Hollywood MD 20636-3109
Eagan, McAllister Associates, Inc. Private http://www.emainc.com   Lexington Park MD 20653-0986
ManTech Systems Engineering Corp. Public subunit http://www.mantech.com   Lexington Park MD 20653-2111
ManTech Systems Engineering Corp. / Engineering an Public subunit http://www.mantech.com   Lexington Park MD 20653-2112
Automated Graphic Systems, Inc. Public subunit http://www.ags.com   White Plains MD 20695-3122
Verizon Connected Solutions, Inc. Public subunit http://www.verizoncsi.com   Beltsville MD 20705
Spherix Inc Public http://www.spherixinc.com   Beltsville MD 20705-1246
Swales and Associates, Inc. Private http://www.swales.com   Beltsville MD 20705-1913
General Sciences Corp. Private Subunit http://www.saic-gsc.com   Beltsville MD 20705-2651
Macro International Inc. Public subunit http://www.macroint.com   Calverton MD 20705-3121
Technical & Management Services Corp. Private http://www.tamsco.com   Calverton MD 20705-4034
Group 1 Software, Inc. Public http://www.g1.com   Lanham MD 20706-1882
Science Systems & Applications, Inc. Private http://www.ssaihq.com   Lanham MD 20706-2947
Automated Information Management, Inc. Private http://www.aim4value.com    Lanham MD 20706-4328
Integral Systems, Inc. Public http://www.integ.com   Lanham MD 20706-4419
TRI-COR Industries, Inc. Private http://www.tricorind.com   Lanham MD 20706-4805
Highland Technologies, Inc. Private Subunit http://www.htech.com   Lanham MD 20706-4826
Jackson & Tull Chartered Engineers / Aerospace Eng Private Subunit http://www.jacksonandtull.com   Seabrook MD 20706-6234
Digex, Inc. Public subunit http://www.digex.com   Laurel MD 20707
iSKY, Inc. Private http://www.isky.com   Laurel MD 20707-2927
Ohmeda Medical US subsidiary http://www.ohmedamedical.com Finland Laurel MD 20723-5800
Greenhorne and O'Mara, Inc. Private http://www.g-and-o.com   Greenbelt MD 20770-1083
OAO Technology Solutions, Inc. Public http://www.oaot.com   Greenbelt MD 20770-3502
Systems Engineering & Security, Inc. Private http://www.ses-inc.com   Greenbelt MD 20770-3504
Multimax, Inc. Private http://www.multimax.com   Largo MD 20774-5323
Merkle Direct Marketing, Inc. Private http://www.merklenet.com   Lanham MD 20785-2238
Tate Access Floors, Inc. Private http://www.tateaccessfloors.com   Jessup MD 20794-9321
CoStar Group, Inc. Public http://www.costargroup.com   Bethesda MD 20814
Hanger Orthopedic Group, Inc. Public http://www.hanger.com   Bethesda MD 20814
Discovery Communications, Inc. Private http://www.discovery.com   Bethesda MD 20814-3578
Chevy Chase Bank, F.S.B. Private http://www.chevychasebank.com   Bethesda MD 20814-6525
eLink Communications Inc. Private http://www.elinkisp.com   Bethesda MD 20815
APS Healthcare, Inc. Private http://www.apscare.com   Bethesda MD 20817
Startec Global Communications Corp. Public http://www.startec.com   Bethesda MD 20817-1008
Lockheed Martin Global Telecommunications Public subunit http://www.lmgt.com   Bethesda MD 20817-1877
BAE SYSTEMS North America US subsidiary http://www.na.baesystems.com UK - England Rockville MD 20850
Spirent Communications / Service Assurance Solutio US subsidiary http://assure.spirentcom.com UK - England Rockville MD 20850
ADP Integrated Medical Solutions, Inc. Public subunit http://www.adpims.com   Rockville MD 20850
Celera Genomics Group Public subunit http://www.celera.com   Rockville MD 20850-1159
Decision Systems Technologies, Inc. Private http://www.dsti.com   Rockville MD 20850-3156
Aspen Systems Corp. Private http://www.aspensys.com   Rockville MD 20850-3166
BAE SYSTEMS / Applied Technologies Division US subsidiary http://www.at.na.baesystems.com UK - England Rockville MD 20850-3173
Marconi North America, Inc. US subsidiary http://www.marconi-na.com UK - England Rockville MD 20850-3173
Thomson Financial Corp. US subsidiary http://www.tfn.com Canada Rockville MD 20850-3194
Westat, Inc. Private http://www.westat.com   Rockville MD 20850-3195
Spirent Communications of Rockville, Inc. / Hekimi Private Subunit http://www.hekimian.com   Rockville MD 20850-3240
Dynamac Corp. Private http://www.dynamac.com   Rockville MD 20850-3268
BioReliance Corp. Public http://www.bioreliance.com   Rockville MD 20850-3304
Human Genome Sciences, Inc. Public http://www.hgsi.com   Rockville MD 20850-3331
Visual Networks, Inc. Public http://www.visualnetworks.com   Rockville MD 20850-4013
Arguss Communications, Inc. Public subunit http://www.arguss.net   Rockville MD 20850-4158
ACS Government Solutions Public subunit http://www.acs-inc.com   Rockville MD 20850-4310
DIGICON Corp. Private http://www.digicon.com   Rockville MD 20850-4315
AETEA Information Technology Inc. Private http://www.aetea.com   Rockville MD 20850-6110
OTG Software, Inc. Public http://www.otgsoftware.com   Rockville MD 20852
Computer Technology Associates, Inc. Private http://www.cta.com   Rockville MD 20852-1764
Manugistics Group, Inc. Public http://www.manugistics.com   Rockville MD 20852-4999
PBI Media, LLC. Private http://www.pbimedia.com   Potomac MD 20854-2931
Phillips International, Inc. Private http://www.phillips.com   Potomac MD 20854-3363
Thales Communications, Inc. US subsidiary http://www.thalescomminc.com France Clarksburg MD 20871
Tetra Tech NUS, Inc. Public subunit http://www.ttnus.com   Germantown MD 20874-7114
Acterna Corp. Public http://www.acterna.com   Germantown MD 20876
Hughes Network Systems Public subunit http://www.hns.com   Germantown MD 20876-2799
Wabtec Railway Electronics Public subunit http://www.wabtec.com   Germantown MD 20876-6963
IGEN International, Inc. Public http://www.igen.com   Gaithersburg MD 20877-1414
EG&G Technical Services, Inc. Private Subunit http://www.egginc.com   Gaithersburg MD 20878-1360
Fusion UV Systems, Inc. US subsidiary http://www.fusionuv.com UK - England Gaithersburg MD 20878-1361
Gene Logic, Inc. Public http://www.genelogic.com   Gaithersburg MD 20878-1712
BAE SYSTEMS / Advanced System Division US subsidiary http://www.signalsurveillance.com UK - England Gaithersburg MD 20878-1794
GE Global Exchange Services, Inc. Public subunit http://www.geis.com   Gaithersburg MD 20878-3204
MedImmune, Inc. Public http://www.medimmune.com   Gaithersburg MD 20878-4028
Social & Scientific Systems, Inc. Private http://www.s-3.com   Silver Spring MD 20910
California Microwave Systems Public subunit http://www.calmw.com   Belcamp MD 21017-1233
AAI Corp. Public subunit http://www.aaicorp.com   Hunt Valley MD 21030-0126
KCI Technologies, Inc. Private http://www.kci.com   Hunt Valley MD 21030-1841
MARCOR Remediation, Inc. Private Subunit http://www.marcor.com   Hunt Valley MD 21030-2111
Ward Machinery Co. (The) Private http://www.wardmachinery.com   Cockeysville MD 21030-4354
AAI Engineering Support, Inc. Public subunit http://www.aaicorp.com   Hunt Valley MD 21030-6108
Amtote International, Inc. Private http://www.amtote.com   Hunt Valley MD 21031-1202
EA Engineering, Science, and Technology, Inc. Public http://www.eaest.com   Hunt Valley MD 21031-1412
W.R. Grace & Co. Public http://www.grace.com   Columbia MD 21044
RWD Technologies, Inc. Public http://www.rwd.com   Columbia MD 21044-3584
Amerix Corp. Private http://www.amerix.com   Columbia MD 21045
Aerotek, Inc. Private Subunit http://www.aerotek.com   Columbia MD 21045
Niro Inc. US subsidiary http://www.niroinc.com Denmark Columbia MD 21045-1991
GSE Systems, Inc. Public http://www.gses.com   Columbia MD 21045-2013
U.S. Foodservice, Inc. US subsidiary http://www.usfoodservice.com Netherlands Columbia MD 21046
Duratek, Inc. Public http://www.duratekinc.com   Columbia MD 21046-1295
General Physics Corp. Public subunit http://www.gpworldwide.com   Columbia MD 21046-2122
MICROS Systems, Inc. Public http://www.micros.com   Columbia MD 21046-2289
Meridian Medical Technologies, Inc. Public http://www.meridianmeds.com   Columbia MD 21046-2370
Shimadzu Scientific Instruments, Inc. US subsidiary http://www.ssi.shimadzu.com Japan Columbia MD 21046-2502
Corvis Corp. Public http://www.corvis.com   Columbia MD 21046-9400
United Container Machinery, Inc. Private http://www.united-container.com   Glen Arm MD 21057
Allegis Group, Inc. Private http://www.allegisgroup.com   Hanover MD 21076
CompuDyne Corp. Public http://www.compudyne.com   Hanover MD 21076
Ciena Corp. Public http://www.ciena.com   Linthicum MD 21090-2923
RDA Corp. Private http://www.rdacustomsoftware.com   Timonium MD 21093
Pall Corp. / Filterite Division Public subunit http://www.filterite.com   Timonium MD 21093-3112
Fawn Industries, Inc. Private http://www.fawn-ind.com   Timonium MD 21093-4110
Gould Fiber Optics US subsidiary http://www.gouldfo.com Japan Millersville MD 21108-2540
ALPHARMA Inc. / U.S. Pharmaceuticals Division Public subunit http://www.alpharmauspd.com   Owings Mills MD 21117
Aether Systems, Inc. Public http://www.aethersystems.com   Owings Mills MD 21117-2264
Powercon Corp. Private http://www.powerconcorp.com   Severn MD 21144-2698
AEGON USA, Inc. US subsidiary http://www.aegonins.com Netherlands Baltimore MD 21201
Condor Technology Solutions, Inc. Public http://www.cndr.com   Baltimore MD 21201
Constellation Energy Group, Inc. Public http://www.constellationenergy.com   Baltimore MD 21201
Crown Central Petroleum Corp. Private http://www.crownfleet.com   Baltimore MD 21201-3740
LifeART US subsidiary http://www.lifeart.com Netherlands Baltimore MD 21201-7912
Cedar Group US, Inc. US subsidiary http://www.cedargroupus.com UK - England Baltimore MD 21202
Orion Power Holding, Inc. Public http://www.orionpower.com   Baltimore MD 21202
Sylvan Learning Systems, Inc. Public http://www.sylvan.net   Baltimore MD 21202
Syscom, Inc. Private http://www.syscom.com   Baltimore MD 21202-3116
Northrop Grumman Corp. / Electronic Systems Sector Public subunit http://www.northgrum.com   Baltimore MD 21203-1319
Kop-Flex, Inc. Public subunit http://www.emerson-ept.com   Baltimore MD 21203-1696
Thyssen General Elevator Co., Inc. US subsidiary http://www.thyssenkruppelevator.com Germany Baltimore MD 21203-1702
VIPS: The Technology of Healthcare Private http://www.vips.com   Baltimore MD 21204
Ajilon Consulting US subsidiary http://www.ajilonconsulting.com Switzerland Towson MD 21204-5325
Hedwin Corp. US subsidiary http://www.hedwin.com Belgium Baltimore MD 21211-1299
Martin Marietta Magnesia Specialties, Inc. Public subunit http://www.magspecialties.com   Baltimore MD 21220-0470
Poly-Seal Corp. Private http://www.poly-seal.com   Baltimore MD 21224-6512
Guilford Pharmaceuticals Inc. Public http://www.guilfordpharm.com   Baltimore MD 21224-6515
Erachem Comolog, Inc. US subsidiary http://www.erachem-comilog.com Belgium Baltimore MD 21226-1792
Tate & Lyle North American Sugars, Inc. US subsidiary http://www.tlna.com UK - England Baltimore MD 21230
Black & Decker Corp. (The) Public http://www.blackanddecker.com   Towson MD 21286-5502
Raytheon Systems Company / Identification & Comman Public subunit http://www.raytheon.com   Baltimore MD 21286-5917
FTI Consulting, Inc. Public http://www.fticonsulting.com   Annapolis MD 21401-2943
TeleCommunication Systems, Inc. Public http://www.telecomsys.com   Annapolis MD 21401-3400
ARINC, Inc. Private http://www.arinc.com   Annapolis MD 21401-7461
USinternetworking, Inc. Public http://www.usi.com   Annapolis MD 21401-7478
Cambridge International Private http://www.cambridge-intl.com   Cambridge MD 21613
Maryland Wire Belts, Inc. Private Subunit http://www.marylandwirebelts.com   Cambridge MD 21613
Cambridge, Inc. Private Subunit http://www.cambridge-inc.com   Cambridge MD 21613-0399
Dixon Valve and Coupling Co. Private http://www.dixonvalve.com   Chestertown MD 21620-1105
Maryland Plastics, Inc. Private http://www.marylandplastics.com   Federalsburg MD 21632-1313
Pathology Associates Public subunit http://www.paicriver.com   Frederick MD 21701-8705
Trans-Tech, Inc. Public subunit http://www.trans-techinc.com   Adamstown MD 21710-9619
Allegheny Energy, Inc. Public http://www.alleghenyenergy.com   Hagerstown MD 21740
BioWhittaker, Inc., A Cambrex Company Public subunit http://www.cambrex.com   Walkersville MD 21793-8415
Harvard Custom Manufacturing, Inc. Private Subunit http://www.harvardgrp.com   Salisbury MD 21804
K&L Microwave, Inc. Public subunit http://www.klmicrowave.com   Salisbury MD 21804-3207
             
Lockheed Martin Public www.lockheedmartin.com   Bethesda MD 20817
Allegheny Energy Public www.alleghenyenergy.com   Hagerstown MD 21740
Marriott International Public www.marriott.com   Bethesda MD 20817
Black & Decker Public www.bdk.com   Towson MD 21286
Constellation Energy Public www.constellationenergy.com   Baktunire MD 21201
Host Marriott Public www.hostmarriott.com   Bethesda MD 20817
Coventry Health Care Public www.kindredhealthcare.com   Bethesda MD 20817
             
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