| At&t Enterprises, LLCChantilly, VA · UEI MX89BGD5FK75 | Chantilly | VA | $4.29B |
| Verizon Business Network Services LLC | Ashburn | VA | $2.53B |
| Lumen Technologies Government Solutions, Inc.Denver, CO · UEI LL22S1ELLY93 | Denver | CO | $1.7B |
| At&t Enterprises, LLCAlpharetta, GA · UEI MNALR8D818N7 | Alpharetta | GA | $933M |
| Teya Enterprises LLCAnchorage, AK · UEI GCR1BVZ4SLP5 | Anchorage | AK | $488M |
| Asrc Communications, Ltd. | Beltsville | MD | $467M |
| Lumen Technologies Government Solutions, Inc.Herndon, VA · UEI VVDMKTX1N1L4 | Herndon | VA | $397M |
| Iap World Services, Inc. | Melbourne | FL | $384M |
| Abacus Technology Corporation | Chevy Chase | MD | $373M |
| Telos Corporation | Ashburn | VA | $352M |
| Lumen Technologies Government Solutions, Inc.Denver, CO · UEI R649KR5942C3 | Denver | CO | $328M |
| Computer World Services, Corp. | Falls Church | VA | $325M |
| Aoc Connect, LLC | Ashburn | VA | $269M |
| Level 3 Communications, LLC | Denver | CO | $202M |
| Eps Corporation | Tinton Falls | NJ | $191M |
| At&t Enterprises, LLCColumbia, MD · UEI WLZML2ZZKFU6 | Columbia | MD | $186M |
| Comcast Government Services LLC | Reston | VA | $161M |
| Technica Corporation | Sterling | VA | $151M |
| Cdo Technologies Inc. | Dayton | OH | $144M |
| Cheroenhaka Nottoway Enterprises, LLC | Courtland | VA | $144M |
| Feditc, LLC | Rockville | MD | $135M |
| 22ND Century Networks, Inc. | Reston | VA | $109M |
| Actionet Inc. | Vienna | VA | $95.6M |
| Gc&e Systems Group, LLC | Peachtree Corners | GA | $85.2M |
| Mci Communications Services LLC | Ashburn | VA | $84.1M |
| Valkyrie Enterprises, LLC | Norfolk | VA | $78.3M |
| GTT Global Telecom Government Services, LLC | Arlington | VA | $77.9M |
| Gc&e Federal, LLC | Peachtree Corners | GA | $62.8M |
| JBW Feditc JV LLC | San Antonio | TX | $53.6M |
| Zayo Group LLC | Denver | CO | $48.2M |
| Verizon Federal Inc. | Ashburn | VA | $46.8M |
| Puyenpa Technologies, LLC | Duckwater | NV | $42.5M |
| Level 3 Telecom Holdings, LLC | Denver | CO | $40M |
| Verizon Deutschland GMBH | Dortmund | | $32.7M |
| Qualitynet General Trading And Contracting Company WLL | Salmiya | | $32.6M |
| Telecom Italia Spa O Tim S.p.a. | Milano | | $30.8M |
| The Centech Group Inc. | Bethesda | MD | $29M |
| Beat-atc Limited Liability Company | San Antonio | TX | $26.6M |
| GTT Americas, LLC | Arlington | VA | $25M |
| Beyon B.S.C | Manama | | $24.5M |
| Vision Technologies, LLC | Glen Burnie | MD | $22.6M |
| Charter Communications Operating LLC | Saint Louis | MO | $22.3M |
| Bellsouth Telecommunications, LLC | Atlanta | GA | $18.6M |
| Windstream Communications, LLC | Little Rock | AR | $18.5M |
| Savvis Federal Systems Inc. | Herndon | VA | $16.4M |
| Lynxnet, LLC | Suffolk | VA | $14.4M |
| United Telephone Company Of The Northwest | Denver | CO | $13.6M |
| Centurylink Communications, LLC | Denver | CO | $11.9M |
| Cox Communications Hampton Roads, L.L.C. | Chesapeake | VA | $11.5M |
| British Telecommunications Public Limited Company | London | | $10.9M |
| Comcast Business Communications, LLC | Philadelphia | PA | $9.6M |
| Hawaiian Telcom, Inc. | Honolulu | HI | $9.17M |
| Lg Uplus Corp. | Seoul | | $9.09M |
| STC Bahrain B.S.C Closed | Manama | | $9.01M |
| Automation Innovations LLC | Tampa | FL | $8.9M |
| Time Warner Cable Enterprises LLC | Saint Louis | MO | $8.78M |
| Navajo Communications Co. Inc. | Norwalk | CT | $8.41M |
| Turk Telekomunikasyon Anonim Sirketi | Ankara | | $8.38M |
| Telefonica De Espana Sau | Madrid | | $8.37M |
| Vector Resources Inc. | Torrance | CA | $8.11M |
| Atechgov LLC | Mc Lean | VA | $7.26M |
| Gci Communication Corp. | Anchorage | AK | $7.11M |
| Southern Light LLC | Mobile | AL | $7.01M |
| Kddi Corporation | Shinjuku-ku | | $6.93M |
| Combridge SRL | Sfantu Gheorghe | | $6.88M |
| Liptinfor Niger Sa | Niamey | | $6.85M |
| Retirementhometv Corporation | Fort Wayne | IN | $5.92M |
| Port Graham Technologies, LLC | Anchorage | AK | $5.78M |
| T2 Technologies, Inc. | Denver | CO | $5.07M |
| Cox Virginia Telcom, L.L.C | Chesapeake | VA | $4.95M |
| Teya Enterprises LLCChesapeake, VA · UEI DHTDBJUKWXY7 | Chesapeake | VA | $4.88M |
| Puyenpa-immersive JV, LLC | Duckwater | NV | $4.57M |
| Vodafone Enterprise Germany GMBH | Dusseldorf | | $4.4M |
| Deutsche Telekom Business Solutions GMBH | Bonn | | $4.07M |
| Business Automation Technologies, Inc. | Little Silver | NJ | $4.05M |
| TKS Telepost Kabel-service Kaiserslautern GMBH | Kaiserslautern | | $4.03M |
| Pacific Bell Telephone Company | San Francisco | CA | $3.93M |
| Cc Communications | Fallon | NV | $3.83M |
| Dhi Group Limited, LLC | Houston | TX | $3.75M |
| Comcast Cable Communications, LLC | Philadelphia | PA | $3.69M |
| Verizon Washington, DC Inc. | Washington | DC | $3.68M |
| Gulfnet Communications Co. WLL. | Al Qibla | | $3.65M |
| Crown Castle Fiber LLC | Houston | TX | $3.63M |
| Verizon Maryland LLC | Annapolis | MD | $3.56M |
| Frontier Communications Holdings, LLC | Norwalk | CT | $3.32M |
| Ooredoo Q.P.S.C | Doha | | $3.3M |
| Cox California Telcom, LLC | San Diego | CA | $3.19M |
| Southwestern Bell Telephone Company, LLC | Dallas | TX | $3.04M |
| Fastiraq, LLC | Baghdad | | $2.99M |
| Scopsky For Communications, Internet And Technology Services, A Limited Liability Company | Baghdad | | $2.96M |
| Hib Technical Installation Services Inc. | Dallas | TX | $2.94M |
| Hawaiian Telcom Federal LLC | Hickam Afb | HI | $2.88M |
| Sonatel Sa | Dakar | | $2.81M |
| Opencape Corporation | Barnstable | MA | $2.74M |
| To7 Network Sas | Djibouti | | $2.63M |
| Diamond N I LLC | Springfield | NJ | $2.62M |
| Worldnet Telecommunications LLC | Guaynabo | PR | $2.59M |
| Rogers Communications Inc. | Toronto | ON | $2.51M |
| Acs Messaging, Inc. | Anchorage | AK | $2.5M |
| Reti Telematiche Italiane S.p.a., In Forma Abbreviata Retelit S. P.a. | Milano | MI | $2.46M |
