| Organisateur | Pays | Salons enregistrés |
| C.E.E.D (Comité d'Expansion Économique du Sud Territoire de Belfort) | France | 1 |
| C.I.S Network Sdn Bhd | Malaisie | 4 |
| C.I.S Vietnam Advertising & Exhibition Ltd. | Viêt-nam | 3 |
| CAAPA (China Association of Amusement Parks and Attractions) | Chine | 1 |
| Caen Expo-Congrès | France | 1 |
| Camera Nazionale della Moda Italiana | Italie | 2 |
| Campus Editori S.r.l. | Italie | 5 |
| Canary Wharf Motorexpo | Royaume Uni | 1 |
| Canndid | Inde | 1 |
| Canon Communications LLC | USA - Etats-Unis d'Amérique | 22 |
| Canton Universal Fair Group Ltd | Chine | 5 |
| CAPEB Pays de la Loire (Chambre artisanale et petites entreprises du bâtiment) | France | 2 |
| CAPEB Poitou-Charentes (Chambre artisanale et petites entreprises du bâtiment) | France | 1 |
| Capedes | Algérie | 3 |
| Caribbean Export | Barbade | 1 |
| CarraraFiere Srl | Italie | 4 |
| Carrefour Event | Maroc | 2 |
| Carte Performance | France | 3 |
| CBAA (Canadian Business Aircraft Association) | Canada | 1 |
| CCAM (Corporation des Concessionnaires d'Automobiles de Montréal) | Canada | 1 |
| CCI de Grenoble | France | 1 |
| CCI de la Drôme | France | 1 |
| CCI de la Moselle | France | 1 |
| CCI de la Vienne | France | 1 |
| CCI de Lyon | France | 1 |
| CCI de Reims et d'Epernay | France | 3 |
| CCI de Rennes | France | 1 |
| CCI de Roanne | France | 1 |
| CCI de Saint-Malo | France | 3 |
| CCIS (Chambre de Commerce et d'Industrie de Sfax) | Tunisie | 1 |
| CCPIT Beijing (China Council For The Promotion of International Trade Shenzhen Sub-Council) | Chine | 1 |
| CCPIT Building Materials Sub-Council | Chine | 2 |
| CCRE-35 (Club des créateurs et repreneurs d'entreprises d'Ile-et-Vilaine) | France | 1 |
| CDO | France | 4 |
| CDOS (Centre for Development of Stones) | Inde | 1 |
| CEA (Consumer Electronics Association) | USA - Etats-Unis d'Amérique | 5 |
| CEAC (China Electronic Appliance Corporation) | Chine | 3 |
| CECF (Chinese Export Commodities Fair) | Chine | 1 |
| CED (Centre Européen de Dermocosmétologie) | France | 2 |
| CEDIA (Custom Electronic Design & Installation Association) | USA - Etats-Unis d'Amérique | 4 |
| CEDIA Asia Pacific | Australie | 1 |
| CEDIA UK Ltd | Royaume Uni | 1 |
| CEIEAC (China Enterprises International Exhibitions & Advertising Co., Ltd) | Chine | 2 |
| CEIEC (China Electronics International Exhibition & Advertising Co. Ltd.) | Chine | 2 |
| CEMATEX (European Committee of Textile Machinery Manufacturers) | Royaume Uni | 2 |
| CEMS (Conference & Exhibitions Management Services Pte Ltd) | Singapour | 12 |
| CEMS Bangladesh | Bangladesh | 10 |
| CEMS India Pvt Ltd. | Inde | 1 |
| CEMS Pakistan (Pvt.) Ltd. | Pakistan | 2 |
| CEMS USA | USA - Etats-Unis d'Amérique | 1 |
| Centaur Exhibitions | Royaume Uni | 9 |
| Centre des Expositions du Mans | France | 2 |
| Centre France Evénements | France | 4 |
| Centrexpo S.p.A. | Italie | 4 |
| Cepex | Tunisie | 1 |
| Cereveh (Centre d'études et de recherches sur les véhicules électriques et hybrides) | France | 1 |
| Cesena Fiera S.p.A. | Italie | 4 |
| Ceveq (Centre d'expérimentation des véhicules électriques du Québec) | Canada | 1 |
| CFCIA - Section France | France | 2 |
| CFCIA (Chambre Française de Commerce et d’Industrie en Algérie) | Algérie | 3 |
| CFCIM (Chambre française de commerce et d'industrie du Maroc) | Maroc | 1 |
| CFIP (Chamber of Furniture Industries of the Philippines) | Philippines | 1 |
| CGTA (Canadian Gift & Tableware Association) | Canada | 1 |
| Cham For Decorative Art | Syrie | 1 |
| Chamber of Commerce and Industry in Tarnow | Pologne | 1 |
| Chambre de Métiers et de l'Artisanat d'Eure-et-Loir | France | 1 |
| Chan Chao International Co., Ltd | Taiwan | 15 |
| Charleroi Expo | Belgique | 7 |
| Chemtech Foundation | Inde | 7 |
| CHES (Chinese Hydraulic Engineering Society) | Chine | 1 |
| China Foreign Trade Guangzhou Exhibition Corp. | Chine | 9 |
| China Instrument & Control Society | Chine | 1 |
| China Toy Association | Chine | 1 |
| China Wood International, Inc. | Chine | 1 |
| Chinstarexpo Co. Ltd. | Chine | 2 |
| ChipExpo | Russie | 3 |
| CIA (Caravan Industry Australia) | Australie | 1 |
| CICES (Centre international du Commerce extérieur du Sénégal) | Sénégal | 1 |
| CICGF Office | Chine | 1 |
| Cidex Trade Fairs Pvt. Ltd. | Inde | 4 |
| CIEC (China International Exhibition Center) | Chine | 5 |
| CII (Confederation of Indian Industry) | Inde | 7 |
| CIM (Canadian Institute of Mining, Metallurgy and Petroleum) | Canada | 1 |
| CIMA (China Instrument Manufacturer's Association) | Chine | 1 |
| Cired Secretariat | Belgique | 1 |
| Citem (Center for International Trade Expositions and Missions) | Philippines | 4 |
| CITEXPO & AFRICITIES | France | 1 |
| CJSC 'Euroexpo' | Russie | 12 |
| Clarion Events Ltd | Royaume Uni | 10 |
| Clean India Journal | Inde | 1 |
| CLIA (China Leather Industry Association) | Chine | 3 |
| CMAQ (Conseil des métiers d'art du Québec) | Canada | 2 |
| CMES (Chinese Mechanical Engineering Society) | Chine | 1 |
| CMP Asia Ltd. | Hong-Kong | 4 |
| CMP Asia Trade Fairs Pte Ltd | Singapour | 1 |
| CMP China | Chine | 10 |
| CMP India (UBM India Pvt. Ltd.) | Inde | 9 |
| CMP Information - Netherlands Office | Pays-Bas | 11 |
| CMP Information (CMPi) | USA - Etats-Unis d'Amérique | 1 |
| CMP Information Brazil | Brésil | 4 |
| CMP Information Ltd. | Royaume Uni | 70 |
| CMP Media | USA - Etats-Unis d'Amérique | 1 |
| CMP Media (Thailand) Co., Ltd. | Thaïlande | 17 |
| CMP Sinoexpo International Exhibition Co., Ltd. | Chine | 5 |
| CMP Technology Japan Co., Ltd | Japon | 4 |
| CMT (Centre for Management Technology) | Singapour | 1 |
| CNISF (Conseil national des ingénieurs et scientifiques de France) | France | 1 |
| CNPA (Conseil national des professions de l'automobile) | France | 1 |
| CNR Expo | Turquie | 22 |
| Coastal International Exhibition Co., Ltd | Hong-Kong | 7 |
| CODISSIA Trade Fair Complex | Inde | 2 |
| COEMA (China Optics and Optoelectronics Manufactures Association) | Chine | 1 |
| COEX (Convention & Exhibition) | Corée du Sud | 9 |
| Cogen Europe | Belgique | 1 |
| Coges (commissariat général des expositions et salons du Gicat) | France | 1 |
| Collège Français de Métrologie | France | 1 |
| Colloquium | France | 2 |
| Colmar Expo | France | 5 |
| Comet (Comité d'organisation des manifestations économiques et touristiques) | France | 2 |
| Comexposium | France | 116 |
| Comité des Fêtes, Foires et Salons de La Rochelle | France | 5 |
| Comité-Entreprise Sarl | France | 2 |
| Communica Organisation | France | 1 |
| COMPASSexpo Ltd | Grèce | 3 |
| Computerworld Events | USA - Etats-Unis d'Amérique | 3 |
| Concours Lépine | France | 1 |
| Conférence PHP Québec | Canada | 1 |
| Conference Service S.r.l. | Italie | 3 |
| Congrès et Expositions de Bordeaux | France | 8 |
| Congress and Exhibition Services | Hongrie | 1 |
| CongrExpo d.o.o. | Serbie | 3 |
| CongrExpo Intercional | Panama | 1 |
| Conseil canadien de la fourrure - Fur Council of Canada | Canada | 1 |
| CONSULTEC (China Economic & Trade Consultants Corporation) | Chine | 1 |
| Contech | Canada | 2 |
| Conventions & Fairs (India) Pvt Ltd. | Inde | 8 |
| Converting Technical Institute | Japon | 1 |
| Corferias | Colombie | 12 |
| Cosmit S.p.A. | Italie | 6 |
| Côté Maison (Groupe Express-Expansion, Express Roularta) | France | 1 |
| Coteo | France | 1 |
| Couleurs Com Sarl | Maroc | 1 |
| Couromoda Feiras Comerciais | Brésil | 1 |
| CP Exhibition (China Promotion Ltd.) | Hong-Kong | 13 |
| CPE Exhibition | Belgique | 15 |
| CPH Vision | Danemark | 1 |
| CPSS (China Power Supply Society) | Chine | 1 |
| Crafts America LLC | USA - Etats-Unis d'Amérique | 3 |
| Creativity Convention & Exhibition | Chine | 2 |
| Cross Group | Royaume Uni | 2 |
| CSCC (China Supply Chain Council) | Chine | 2 |
| CSFA (Cyprus State Fairs Authority) | Chypre | 5 |
| CTIA - The Wireless Association | USA - Etats-Unis d'Amérique | 2 |
| Cubic Globe Ltd. | Royaume Uni | 2 |
| CWC Associates Limited | Royaume Uni | 8 |
| Cyber Merchants Exchange | USA - Etats-Unis d'Amérique | 2 |
