| ABB | 965 | Switzerland |
| ADACEL SYSTEMS, INC. | 598 | United States |
| ADB SAFEGATE | 351 | Belgium |
| AERIAL & MARITIME LTD | 171 | Denmark |
| AERO4TE S.R.O. | 1101 | Czech Republic |
| AEROMACS - WIMAX FORUM | 117 | United States |
| AGILITY SPAIN S.A. | Agility - 801 | Spain |
| AIR NAVIGATION SERVICES OF THE CZECH REPUBLIC | 885 | Czech Republic |
| AIR TRAFFIC TECHNOLOGY INTERNATIONAL | 135 | United Kingdom |
| AIREON | 925 | United States |
| AIRMAP | 1214 | United States |
| AIRTEL ATN | 1350 | Ireland |
| AIRWAYS NEW ZEALAND | 592 | New Zealand |
| ALES, MEMBER OF ICZ GROUP | 1171 | Czech Republic |
| ALL WEATHER, INC. | 853 | United States |
| ALTYS TECHNOLOGIES | 1167 | France |
| ANHUI SUN CREATE ELECTRONICS CO., LTD | 333 | China |
| ATCA | 201 | United States |
| ATECH NEGÓCIOS EM TECNOLOGIAS SA | 955 | Brazil |
| ATEN | 496 | Belgium |
| AT-ONE | 931 | Netherlands |
| ATRICS | 828 | Germany |
| ATS DATA DESIGN | 1366 | Denmark |
| AZIMUT | 272 | Russian Federation |
| BIRAL | 1147 | United Kingdom |
| BLACK BOX | 428 | Netherlands |
| BRIDGENET INTERNATIONAL | 1346 | United States |
| BULATSA | 270 | Bulgaria |
| CADMOS MICROSYSTEMS SRL | 1175 | Italy |
| CAMBRIDGE PIXEL LTD | 1344 | United Kingdom |
| CAMPBELL SCIENTIFIC LTD | 1202 | United Kingdom |
| CANSO | 403 | Netherlands |
| CGX AERO | 260 | France |
| CIVIL AVIATION AIR TRAFFIC CONTROL TECHNOLOGY EQUIPMENT DEVELOPMENT CO. LTD | 333 | China |
| COASTAL ENVIRONMENTAL SYSTEMS | 1202 | United States |
| COOPANS | 957 | Denmark |
| COPPERCHASE LIMITED | 1330 | United Kingdom |
| CROATIA CONTROL | 975 | Croatia |
| CS COMMUNICATION & SYSTÈMES | 479 | France |
| CS SOFT A.S. | 460 | Czech Republic |
| CYBERNETICA AS | 1169 | Estonia |
| DANUBE FAB | 270 | Romania |
| DFS AVIATION SERVICES GMBH | 834 | Germany |
| DFS DEUTSCHE FLUGSICHERUNG GMBH | 834 | Germany |
| DIAMOND ANTENNA AND MICROWAVE CORP. | 137 | United States |
| DLR | 931 | Germany |
| DSNA (DIRECTION DES SERVICES DE LA NAVIGATION AÉRIENNE) | 480 | France |
| DSNA SERVICES | 480 | France |
| DTN | 242 | United States |
| EANS | 1169 | Estonia |
| EASAT RADAR SYSTEMS LTD. | 888 | United Kingdom |
| EDDA SYSTEMS | 1265 | Norway |
| EGIS | 339 | France |
| EIZO TECHNOLOGIES GMBH | 349 | Germany |
| ELDIS PARDUBICE, S.R.O. | 460 | Czech Republic |
| EMBRY-RIDDLE AERONAUTICAL UNIVERSITY | 1310 | United States |
| ENAC (ECOLE NATIONALE DE L'AVIATION CIVILE) | 480 | France |
| ENAIRE | 844 | Spain |
| ENAV | 927 | Italy |
| ENGIE INEO - ENERGY & SYSTEMS | 367 | France |
| ENTRY POINT NORTH | 943 | Sweden |
| ERA A.S. | 1159 | Czech Republic |
| ESSP - SAS | 1141 | Spain |
| ESTERLINE | 213 | Belgium |
| EUROCONTROL | 849 | Belgium |
| EVENTIDE INC. | 1139 | United States |
| EVERIS AEROSPACE, DEFENSE AND SECURITY | 953 | Spain |
| FREQUENTIS AG | 526 | Austria |
| FREQUENTIS AG | MR-F | Austria |
| GENERAL DYNAMICS MISSION SYSTEMS | 158 | United States |
| GESAB | 881 | Spain |
| GL COMMUNICATIONS, INC. | 1367 | United States |
| GLARUN TECHNOLOGY CO.,LTD | 333 | China |
| GLOBAL AIR TRAFFIC CONTROLLERS ALLIANCE | 1306 | United States |
| GLOBAL ATS LTD | 446 | United Kingdom |
| GLOSS S.R.L. | 1368 | Italy |
| GROUPEAD | 590 | Germany |
| GUARDREC | 217 | Norway |
| GUNTERMANN & DRUNCK GMBH | 433 | Germany |
| HARRIS CORP. | 426 | United States |
| HELIOS | 339 | United Kingdom |
| HENSOLDT | 1117 | Germany |
| HIS HERMIEU INTERNATIONAL SUPPLY | 880B | France |
| HONEYWELL | 1231 | Romania |
| HUNGAROCONTROL | 335 | Hungary |
| IACIT SOLUÇÕES TECNOLÓGICAS S.A. | 1258 | Brazil |
| IATAS - INTERNATIONAL AIR TRAFFIC AUTOMATION SYSTEMS | 1234 | Israel |
| IDS INGEGNERIA DEI SISTEMI S.P.A. | 883 | Italy |
| IHSE GMBH | 407 | Germany |
| IMTRADEX | 209 | Germany |
| INDRA | 553 | Spain |
| INECO | 845 | Spain |
| INFINITE TECHNOLOGIES, INC. | 836 | United States |
| INMARSAT AVIATION | 863 | United Kingdom |
| INNOV'ATM | 373 | France |
| INSERO AIR TRAFFIC SOLUTIONS A/S | 446 | Denmark |
| INTEGRA HOLDING APS | 851 | Denmark |
| INTELCAN TECHNOSYSTEMS, INC. | 979 | Canada |
| INTERNATIONAL AIR TRANSPORT ASSOCIATION (IATA) | 147 | Canada |
| INTERNATIONAL CIVIL AVIATION ORGANIZATION (ICAO) | 115 | Canada |
| INTERSOFT ELECTRONICS NV | 961 | Belgium |
| ISAVIA | 337 | Iceland |
| ISDEFE | 951 | Spain |
| JANE'S BY IHS MARKIT | 1302 | United Kingdom |
| JMA SOLUTIONS | 1364 | United States |
| JOTRON | 1233 | Norway |
| KONGSBERG | 1143 | Norway |
| L3 ESSCO | 1228 | United States |
| LAIC AG | 803 | Switzerland |
| LEIDOS | 405 | United States |
| LEONARDO SPA | 890 | Italy |
| LLC NPO "RTS" | 1362 | Russian Federation |
| LOGIPIX LTD. | 594 | Hungary |
| LS TELCOM | 151 | Germany |
| LUFFT MESS- UND REGELTECHNIK GMBH | 139 | Germany |
| LUND HALSEY | 1245 | United Kingdom |
| M.T. SRL | 971 | Italy |
| M-CLICK.AERO GMBH | 375 | Germany |
| MEP | 1330 | Netherlands |
| MESTALLA INTERIORISMO S.L | Mestalla - 800 | Spain |
| METRON AVIATION, INC. | 1157 | United States |
| MICRO NAV LIMITED | 542 | United Kingdom |
| MICROSTEP-MIS | 1221 | Slovakia (Slovak Republic) |
| MITRE | 574 | United States |
| MITSUBISHI ELECTRIC CORPORATION | 1328 | Japan |
| MOOG INC. | 1304 | United States |
| MOPIENS | 1137 | Korea, Republic Of |
| NANJING LES INFORMATION TECHNOLOGY CO., LTD | 301 | China |
| NATIONAL INSTITUTE OF MARITIME, PORT AND AVIATION TECHNOLOGY | 1119 | Japan |
| NATS | 826 | United Kingdom |
| NAUTEL | 1201 | Canada |
| NAVCANATM | 816 | Canada |
| NITA, LLC | 586 | Russian Federation |
| NOKIA | 891 | Finland |
| NORTHROP GRUMMAN PARK AIR SYSTEMS | 431 | United Kingdom |
| NÚCLEO | 805 | Spain |
| OBSERVATOR INSTRUMENTS B.V. | 1149 | Netherlands |
| OCEM AIRFIELD TECHNOLOGY | 145 | Italy |
| ONUR ENGINEERING | 1163 | Turkey |
| PLANTRONICS, INC. | 900 | United States |
| POLISH AIR NAVIGATION SERVICES AGENCY | 239 | Poland |
| POLOMARCONI TELSA SPA | 1235 | Italy |
| PRS POLISH RADOME SERVICES | 973 | Poland |
| R.I.S.K. COMPANY | 1204 | Azerbaijan |
| RADIOMETRICS | 304 | United States |
| RADOME SERVICES LLC | 207 | United States |
| RAMET A.S. | 1222 | Czech Republic |
| RAYTHEON COMPANY | 1105 | United States |
| RETIA A.S. | 460 | Czech Republic |
| RHEINMETALL AIR DEFENCE AG | 896 | Switzerland |
| RHOTHETA ELEKTRONIK GMBH | 1255 | Germany |
| RIGIL CORPORATION | 205 | United States |
| ROCKWELL COLLINS | 1161 | United Kingdom |
| ROHDE & SCHWARZ | 562 | Germany |
| RYMSA | 1165 | Spain |
| SAAB | 305 | United States |
| SAINT-GOBAIN | 303 | United States |
| SAIPHER ATC | 1103 | Brazil |
| SCHMID TELECOM ZÜRICH | 892 | Switzerland |
| SCINTEC AG | 1212 | Germany |
| SENNHEISER COMMUNICATIONS ATC/C3 SYSTEMS | 921 | United States |
| SERVICIOS Y ESTUDIOS PARA LA NAVEGACIÓN AÉREA Y LA SEGURIDAD AERONÁUTICA S.M.E.M.P.S.A | 847 | Spain |
| SESAR | 1151 | Belgium |
| SI ATM | 215 | Sweden |
| SIEMENS RUGGEDCOM | 119 | Canada |
| SISTEMAS Y MONTAJES INDUSTRIALES, S.A. | 258 | Spain |
| SITAONAIR | 371 | Switzerland |
| SITTI | 571 | Italy |
| SKYGUIDE - SWISS AIR NAVIGATION SERVICES LTD. | 1220 | Switzerland |
| SKYSOFT-ATM | 1220 | Switzerland |
| SOLACE | 1358 | Canada |
| SOPRA STERIA | 488 | France |
| SPIRE | 377 | United States |
| STATE RESEARCH INSTITUTE OF AVIATION SYSTEMS | 473 | Russian Federation |
| STR-SPEECHTECH LTD. | 880A | Canada |
| SUNHILLO CORPORATION | 807 | United States |
| TACO ANTENNA | 159 | Canada |
| T-CZ, A.S. | 898 | Czech Republic |
| TELERAD | 258 | France |
| TERMA A/S | 1354 | Denmark |
| TERN SYSTEMS | 337 | Iceland |
| THALES | 515 | France |
| THE SECOND RESEARCH INSTITUTE OF CIVIL AVIATION ADMINISTRATION OF CHINA | 333 | China |
| THINK RESEARCH LIMITED | 1135 | United Kingdom |
| THINKING SPACE SYSTEMS LTD. | 240 | United Kingdom |
| THRUPUT | 1200 | United Kingdom |
| TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION | 369 | Japan |
| UFA, INC. | 882 | United States |
| UNIFLY | 1145 | Belgium |
| VAISALA | 572 | Finland |
| VERTIV INTEGRATED SYSTEMS GMBH | 1224 | Germany |
| VITROCISET | 540 | Italy |
| VOICECOLLECT GMBH | 1301 | Germany |
| WEY TECHNOLOGY AG | 1220 | Switzerland |
| WIDE/FORESEESON GMBH | 1210 | Germany |
| WORLD ATM CONGRESS | 105 | United States |
| YOUYANG AIRPORT LIGHTING EQUIPMENT INC | 361 | Korea, Republic Of |