SITE III Vendor List (as of March 5, 2021)

Vendor Name Size SITE III email Address Mailing Address

22nd Century Technologies Inc Large proposal@tscti.com 8251 Greensboro Dr Ste 900 McLean VA 22102

Accenture Federal Services, LLC

Large AFS.SITE.III@accenturefederaldefense.com 800 N. Glebe Road Arlington VA 22203

Advanced Systems Development, Inc./Team ASD

Large ASD-DIA_SITE_III@asdincasbs.onmicrosoft.com

6400 Arlington Blvd, Suite 850 Falls Church VA 22042

Agile Defense, Inc. Large SITE3@agile-defense.com

11600 Sunrise Valley Drive Suite 440 Reston VA 20190

AT&T Corp. Large DL-SITEIIIInternal@att.com 7125 Columbia Gateway Dr Columbia MD 21046

BAE Systems Technology Solutions & Services Inc.

Large site3@baesystems.com 520 Gaither Road Rockville MD 20850

BE (Buchanan & Edwards) Large Site_iii@buchanan-edwards.com 1700 N. Moore St, Suite 2110 Arlington VA 22209

BIA (Boeing Intelligence & Analytics)

Large bia_site_iii@bia-boeing.com 131 National Business Parkway

Annapolis Junction MD 20701

BoozAllenHamilton Large SITEIII_IDIQ@bah.com 8283 Greensboro Drive McLean VA 22102

CACI Large SITE3.PMO@caci.com 14370 Newbrook Drive Chantilly VA 20151

SITE III Vendor List (as of March 5, 2021)

CGI Federal Inc Large CGI-SITE_III@cgifederal.com 12601 Fair Lakes Circle Fairfax VA 22033

Data Systems Analysts, Inc.(DSA)/ TeamDSA

Large SITEIII@dsainc.com

8 NE Shaminy Interplex Dr, STE 209 Trevose PA 19053

Deloitte Large ussiteiiiteam@deloitte.com 1919 N Lynn St. Arlington VA 22209

GDIT Large GDSITEIII@gdit.com 13857 McLearen Road Herndon VA 20171

Illuminate Mission Solutions (Cyberspace Solutions, LLC dba Illuminate Mission Solutions)

Large emacc@oneilluminate.com 198 Van Buren Street, Suite 200 Herndon VA 20170

IndraSoft, Inc. (ISI) Large site3@indrasoft.com

1768 Business Center Drive, Suite 200 Reston VA 20190

Intrepid Solutions and Services, LLC

Large SITE3@intrepidsolutions.com 12950 Worldgate Drive, Suite 710 Herndon VA 20170

Jacobs Technology, Inc. Large SiteIII@jacobs.com 600 William Northern Blvd Tullahoma, TN 37388

Leidos Large LeidosSITE3@leidos.com 1750 Presidents Drive Reston VA 20190

M.C. Dean, Inc. Large DIA_SITE@mcdean.com

1765 Greensboro Station Place Suite 1400 Tysons VA 22102

SITE III Vendor List (as of March 5, 2021)

ManTech Large stacie.titus@mantech.com 2251 Corporate Park Drive Herndon VA 20171

MetroStar Large DIASITEIII@metrostarsystems.com 1856 Old Reston Avenue, Suite 100 Reston VA 20190

NGSC (Northrop) Large laura.chambers@peraton.com

13825 Sunrise Valley Drive, Suite 200 Herndon VA 20171

Novetta Inc. Large site_iii@novetta.com 7921 Jones Branch Drive, Suite 500 McLean VA 22102

Octo Consulting Group, Inc Large SITE3@octoconsulting.com 10780 Parkridge Blvd, 4th Floor Reston VA 20191

Parsons Government Services Inc.

Large STEIIILeadership@parsons.com 100 West Walnut St. Pasadena CA 91124

PCMG Large Katrina.Gordon@perspecta.com 13755 Sunrise Valley Dr. Suite 750 Herndon VA 20171

Perspecta Enterprise Solutions LLC/Team Perspecta

Large SITE_III@saic.com 13600 EDS Dr. A3S Herndon VA 20171

SAIC Large SITEIII@smartronix.com 12010 Sunset Hills Road Reston VA 20190

Smartronix LLC Large sbd-siteiii@SBD2.com 44150 Smartronix Way Hollywood MD 20636

Solutions By Design II, LLC Large Site3.sosi@sosi.com 1953 Gallows Road, Suite 650 Vienna VA 22182

SITE III Vendor List (as of March 5, 2021)

SOS International LLC (SOSi) Large BI-SITEIII@businessintegra.com

1881 Campus Commons Drive, Suite 500 Reston VA 20191

Team BI /Business Integra Technology Solutions, Inc.

Large DIASITEIII@Telesishq.com 6550 Rock Spring Drive, Suite 600 Bethesda MD 20817

TELESIS Corporation/Team TELESIS

Large site3@thebuffalogroup.com 8300 Greensboro Drive, Suite 600 McLean VA 22102

The Buffalo Group, LLC Large SITEIII-Trowbridge@intellibridge.us 1851 Alexander Bell Dr. Suite 300 Reston VA 20191

Trowbridge & Trowbridge, LLC Large david.rinaldo@u.group 1430 Spring Hill Road, Suite 200 McLean VA 22102

UGROUP ByteCubed d.b.a. U Group

Large SITEIII_PMO@wwtas.com 2231 Crystal Dr #401 Arlington VA 22202

WWTAS (World Wide Technology Government Services)

Large 430 National Business Parkway, Suite 160

Annapolis Junction MD 20701

1CyberForce, LLC Small site3@1cyberforce.com 950 Herndon Parkway, Suite 280 Herndon VA 20170

Actionable Solutions Group Small ASGSITE3@actionablesolutionsgroup.com

5528 Hempstead Way Springfield VA 22151

Aderas, Inc. Small dia-site3@aderas.com 11911 Freedom Drive, Suite 650 Reston VA 20190

SITE III Vendor List (as of March 5, 2021)

AEEC, LLC Small site3@americanconsultants.com

11710 Plaza America Drive, Suite 125 Reston VA 20190

Alpha Omega Integration, LLC Small AOI_SITE_III@alphaomegaintegration.com

8150 Leesburg Pike, Suite #1010 Vienna VA 22182

AnaVation, LLC Small siteiii@anavationllc.com

15040 Conference Center Drive, Suite 210 Chantilly VA 20151

AOC Connect, LLC Small SITEIII@aocconnect.com 14030 Thunderbolt Place, Suite 700 Chantilly VA 20151

Armedia, LLC Small SITE_III@armedia.com

8221 Old Courthouse Road, Suite 300 Vienna VA 22182

ASIRTek Federal Services, LLC.

Small SITE3_PM@asirtekfs.com 14603 Huebner Rd. Suite 2402 San Antonio TX 78230

AttainX, Inc. Small siteiii@attainx.com 13873 Park Center Rd, Ste 212 N Herndon VA 20171

Bowhead Total Enterprise Solutions, LLC

Small BowheadSITEIII@bowheadsupport.com

6564 Loisdale Court, Suite 900 Springfield VA 22150

Braxton-Grant Technologies, Inc.

Small siteiii@braxtongrant.com 1340 Charwood Rd, Ste I Hanover MD 27076

BridgePhase, LLC/Team BridgePhase

Small siteiii@bridgephase.com 2800 Shirlington Rd. #704 Arlington VA 22206

SITE III Vendor List (as of March 5, 2021)

Castalia Small SITEIII@castaliasystems.com 100 S. Ashley Drive, Suite 600 Tampa FL 33602

Cedge Software Consultants Small CEdge_SITE_III@cedgecorp.com 1232 Washington Ave, Suite 310 St. Louis MO 63103

cFocus Software Incorporated Small siteiii@cfocussoftware.com 10536 Joyceton Drive Largo MD 20774

Choisys Technology, Inc. Small site3@choisystechnology.com 20098 Ashbrook PL, Suite 160 Ashburn VA 20147

CKA, LLC/Team CKA Small DIA_SITE-pmo@ckallc.com 46050 Manekin Plaza, Suite 120 Sterling VA 20166

clearAvenue, LLC/ Team clearAvenue

Small siteiii@clearavenue.com 6711 Columbia Gateway Dr. Columbia MD 21046

Competitive Range Solutions, LLC

Small siteiii@getcrs.com 20 W Kinzie St Fl 17 Chicago IL 60654

Creative IT Solutions LLC Small proposals@dnigov.com 2000 N. Classen Blvd. Ste. 1700

Oklahoma City OK 73106

Cyber and Engineering Excellence (CE2) Solutions JV

Small SITE_III@ic-cap.com 4520 Guinevere Lane Pomfret MD 20675

CyberPeak Innovations, LLC Small contracts@directviz.com

14900 Conference Center Drive, Suite 250 Chantilly VA 20151

DAn Solutions, Inc. Small SITE3@dansolutions.com 2111 Wilson Blvd, Suite 310 Arlington VA 22201

SITE III Vendor List (as of March 5, 2021)

Data Intelligence Technologies, Inc.

Small site3@dataintelligencetech.com 415 K Street Washington DC 20003

Datastrong LLC Small DIASITEIII@datastrong.com 8315 Lee Highway Suite 600 Fairfax VA 22203

Derivative, LLC. Small site3@derivativellc.biz 2711 Richmond Hwy, Suite 200 Arlington VA 22202

DigiFlight, Inc. (Team DigiFlight)

Small dficontracts@digiflight.com 8825 Stanford Blvd. Suite 100, Columbia MD 21045

Diverse Systems Group, LLC Small site3@dsg-it.com 10411 Motor City Drive, Suite 685 Bethesda MD 20817

DKW Communications, Inc. Small DKW_SITEIII@DKWCOMMUNICATIONS.COM

601 13th St. Suite N-350 Washington DC 20005

Dynamo-VariQ Joint Venture (DVJV)/Team DVJV

Small site3@dynamo-variq.com 1951 Kidwell Dr. Ste 550 Vienna VA 22182

Dynanet Corporation Small DynanetsiteIII@dynanetcorp.com 8182 Lark Brown Road, Suite 300 Elkridge VA 21075

Edgewater Federal Solutions, Inc.

Small DIASITES3@edgewaterit.com 5280 Corporate Drive, Suite C130 Frederick MD 21703

EnDepth Solutions, LLC Small SITE3@endepthsolutions.com 6724 Alexander Bell Dr, Suite 130 Columbia MD 21046

Enhanced Veterans Solutions (EVS), Inc

Small EVS.DIA.SITE.III@enhancedvets.com

10560 Main Street, Suite 220 Fairfax VA 22030

Epsilon Inc Small siteiii@epsilon-inc.com 1 Monticello Village Drive, Weaverville NC 28787

SITE III Vendor List (as of March 5, 2021)

E-volve Technology Systems, Inc.

Small SITE_III@e-volvetechsystems.com 163 Waterfront St, Suite 420

National Harbor MD 20745

Expression Networks, LLC Small diasite3@expr.net 1140 3rd St. NE, Suite 310 Washington DC 20002

Federated IT, Inc. Small Contracts@FederatedIT.com 12500 G St, NW, Ste. 800 Washington DC 20005

Fortem Services Group, LLC Small site3@fortemgrp.com 1951 Kidwell Dr. STE 320 Vienna VA 22182

Full Visibility LLC Small site3pmo@fullvisibility.com 1934 Old Gallows Road, Suite 350 Vienna VA 22182

Fusion Technology LLC Small SITEIII@fusiontechnology-llc.com 45 Professional Place, Suite 202 Bridgeport WV 26330

Futron Incorporated Small dia.siteiii@futroninc.com 14067 Crown Court Woodbridge VA 22193

GCubed Enterprises, Inc. / Team GCubed

Small SITESIII@gcubedinc.com 10 Center Street, Suite 107 Stafford VA 22556

George Consulting, LTD Small contracts@georgeconsulting.com 225 Seven Farms Drive, Ste 300 Charleston SC 29492

Graham Technologies, LLC / Team GRAHAM

Small site3@graham-tech.net 1401 Mercantile Lane, Suite 301 Largo MD 20774

Halvik Corp (Halvik) Small DIASITEIII@halvik.com 1600 Spring Hill Road, Suite 240 Vienna VA 22182

Highlight Technologies, LLC Small HighlightSITE@highlighttech.com 9990 Fairfax Blvd, Suite 350 Fairfax VA 22030

SITE III Vendor List (as of March 5, 2021)

HPI Solutions LLC Small HPISITE3@HighPrairies.com 11122 William Plz Omaha NE 68144

Imperative Critical Infrastructure Protection, LLC

Small ImperativeCIP-SITE@xatorcorp.com 5920 Mount Vernon Blvd Lorton VA 22079

IMPRES Technology Solutions, Inc

Small SITE@imprestechnology.com 530-B Huntmar Park Drive, Suite K Herndon VA 20170

Information Management Group, Incorporated (IMG)

Small IMG_SITEIII@imgva.com 10330 Pioneer Blvd, Ste 280

Santa Fe Springs, CA 90670

Information Technology Strategy

Small diasite3@it-strat.com 4050 Legato Road, Suite 200 Fairfax VA 22033

iNovex Information Systems, Inc.

Small SiteIII@inovexcorp.com 23392 Summerstown Place Dulles VA 20166

Integrated Computer Solutions Inc. (ICS)

Small SITEIII@ICSInc.com

6950 Columbia Gateway Drive, Suite 350 Columbia MD 21046

Intelligent Innovations Group Small DIA_SITE_III@IIGFederal.com 60 Commerce Street, Suite 1100

Montgomery, AL 36104

InterImage, Inc. Small siteiii@iimage.com 4301 N. Fairfax Drive, Suite 205 Arlington VA 22203

Invictus International Consulting LLC

Small SITE3@invictusic.com 66 Canal Center Plaza, Suite 501 Alexandria VA 22314

IPT Associates, LLC (IPT)/IPT Team

Small SITEIII@iptassociates.com 1500 District Avenue Burlington MA 01803

SITE III Vendor List (as of March 5, 2021)

iSenpai, LLC Small pmo_dia_site3@isenpai.com 1751 Pinnacle Drive, Suite 600 McLean VA 22102

ISPA Technology LLC Small SITEIII@ispatechnology.com 6232 Kingbird Manor Dr Lithia FL 33547

IT Concepts, Inc Small SITE3@useitc.com 1600 Spring Hill Road, Suite 305 Vienna VA 22182

Kingfisher Systems, Inc. Small diasite3@kingfishersys.com 3110 Fairview Park Drive, Suite 1250 Falls Church VA 22042

Lentech, Inc Small SITEIII@lentechinc.com P.O. Box 67155 Albuquerque NM 87193

Manta Group LLC Small site3@manta-group.com

12001 Sunrise Valley Drive, Suite 10 Reston VA 20191

MicroTech Small dia_site_iii@microtech.net 8330 Boone Blvd, Ste 600 Tysons VA 22182

Navitas Business Consulting, Inc

Small SITEIII@Navitas-tech.com 13454 Sunrise Valley Dr, Suite 240 Herndon VA 20171

Netorian Small siteiii@netorian.com

210 Research Boulevard, Suite 160 Aberdeen MD 21001

New River Systems Corporation Small SITE3@newriversystems.com

19775 Belmont Executive Plaza, #305 Ashburn VA 20147

SITE III Vendor List (as of March 5, 2021)

Nisga’a Data Systems, LLC Small DIASITEIII@ndsystems.com 14900 Bogle Dr Ste 300

Chantilly VA 20151

NOVA-Dine, LLC Small site3@nova-dine.com 8840 E. Chaparral Road

Scottsdale AZ 85250

NucoreVision, Inc. (CTA Team Lead)

Small DIASITEIII@nucorevision.com 4601 Forbes Blvd, Suite 210

Lanham MD 20706

Obsidian Solutions Group Small SITEIII@obsidiansg.com 1320 Central Park Blvd, Suite 304

Fredericksburg

VA 22401

Occam Solutions, Inc / Team Occam

Small DIASite3@occamsolutions.com 590 Herndon Pkwy, Suite 375

Herndon VA 20170

Paradyme Management Inc. Small contracts@paradyme.us 9111 Edmonston Rd, Ste 400

Greenbelt MD 20770

Patriot L.L.C. Small diasite@patriotllc.net 9520 Berger Rd #212

Columbia MD 21046

Plus3 IT Systems, LLC (Plus3 IT)

Small siteiii@plus3it.com

12030 Sunrise Valley Drive Suite 110

Reston VA 20191

Probity Inc. Small ProbitySite3@trueprobity.com 754 Elden Street, Suite 201

Herndon VA 20170

Pueo Prescient Edge Small info@pueo-prescientedge.com 7926 Jones Branch Drive

McLean VA 22102

Quadrint, Inc. Small SITE-III@Quadrint.com 3190 Fairview Park Drive, Suite 360

Falls Church VA 22042

SITE III Vendor List (as of March 5, 2021)

Red Arch Solutions, Inc. Small SITEIII@redarchsolutions.com 10215 Wincopin Circle, Suite 200

Columbia MD 21044

RIVA Solutions, Inc. Small e-site@rivasolutionsinc.com 8000 Westpark Dr #450

McLean VA 22102

RTL Networks, Inc. Small RTL_Site_III@rtl-networks.com 711 Kimberly Avenue, Suite 145

Placentia CA 92870

Salience Technologies LLC Small federal@saliencetechllc.com 8260 Greensboro Drive, Suite 150

McLean VA 22102

Secure Innovations, LLC Small contracts@secure-innovations.net 10005 Old Columbia Rd, L-261

Columbia MD 21046

Seneca Telecommunications, LLC (d/b/a Seneca Solutions)

Small SITEIII@Seneca-Solutions.com 90 Ohi Yo Way Salamanca NY 14779

SHINE Systems, LLC Small Contracts@shinesystems.com One Morton Drive, Suite 201

Charlottesville

VA 22903

SHR Consulting Group, LLC Small SITEIII@shrgroupllc.com 5285 Shawnee Road Ste 200

Alexandria VA 22312

SNA International, LLC/Team SNA

Small SNASITEIII@sna-intl.com 500 Montgomery Street, Suite 500

Alexandria VA 22314

SOFTEK FEDITC, LLC (SOFITC)

Small DIASITEIII@softekintl.com

242 Old New Brunswick Rd, Ste 320

Piscataway NJ 8854

Spathe Systems LLC Small diasite3@spathesystems.com 5401 W. Kennedy Blvd, Suite 750

Tampa FL 33609

SITE III Vendor List (as of March 5, 2021)

Spiral Solutions & Technologies, Inc./Team Spiral

Small spiral_site_iii@ssandtech.com 2203 Harvell Plaza Drive

Bellevue NE 68005

Spry Methods Inc Small dia-siteiii@sprymethods.com 1420 Spring Hill Road, Suite 300

McLean VA 22102

Storage Strategies, Inc./SSI Small DIASITEIII@ssihq.net

2049 Old Centreville Rd, Unit 788

Manassas Park

VA 20111

SydanTech, LLC (Team SydanTech)

Small SITE3-Contract@sydantech.com 6701 Democracy Blvd. Suite 300

Bethesda MD 20817

Synertex LLC Small site3@synertex.com 37796 Elizabeth's Field Ln

Purcellville VA 20132

Systems Plus, Inc. / Team Systems Plus

Small SITEIII.PMO@sysplus.com 1 Research Court, Suite 360

Rockville MD 20850

TEAM IMTAS/Innovative Management & Technology Approaches, Inc. (IMTAS)

Small IMTAS-DIASITEIII@imtas.com 2100 Crystal Drive, Suite 750

Arlington VA 22202

Team LTG (LinTech Global, Inc.)

Small contracts@lintechglobal.com 34119W. 12 Mile Road, Suite 200

Farmington Hills

MI 48331

Technical and Management Resources, Inc. (TMR)

Small tmr-dia-site3@tmrhq2.com 10511 Braddock Road, Suite 1-B

Fairfax VA 22032

TekSynap Corporation Small SITEIII@TekSynap.com 1900 Oracle Way Suite 800

Reston VA 20190

TENICA and Associates LLC Small SITE3@TENICA-GS.com 4795 Meadow Wood Ln Ste 200W

Chantilly VA 20151

SITE III Vendor List (as of March 5, 2021)

Veteran’s First, LLC / Team Veteran’s First

Small SITEIII@veteransfirstjv.com 4616 Dixie Hill Road

Fairfax VA 22030

Vexterra Group Small SITE_III@vexterra.com

11710 Plaza America Drive, Suite 2000

Reston VA 20190

Volant Associates LLC Small Site@volantco.com 15049 Conference Center Dr. Ste 230

Chantilly VA 20151

Webworld Technologies, Inc dba WTI

Small Tkgonsalves@wti-solutions.com 4031 University Drive, Suite 100

Fairfax VA 22030

Yahya Technologies, LLC (DBA Y-Tech, LLC)

Small siteiii@ytechllc.com 10010 Junction Drive, Suite 201-S

Annapolis Junction

MD 20701