| Organizer | Country | Registered Events |
| S.G.E.M.V. asbl | Belgium | 1 |
| SACO (Safahan Ara Exhibition Consultants Co.) | Iran | 4 |
| SAE (Society of Automotive Engineers) | USA - United States of America | 1 |
| Saem Sogepea | France | 2 |
| Safex (Société algérienne des foires et expositions) | Algeria | 5 |
| SAFI | France | 7 |
| Safim | France | 1 |
| Sahara Expo | Egypt | 2 |
| Sahara Group | Egypt | 1 |
| SAIF (Institute of Fundraising Southern Africa) | South Africa | 1 |
| Sail America | USA - United States of America | 3 |
| Saker Expo | Libya | 4 |
| Salon Bois | Switzerland | 1 |
| Salon des antiquaires du Pays d'Aix | France | 1 |
| Salon des Métiers d'Art du Québec | Canada | 1 |
| Salon du Cheval de Montpellier | France | 1 |
| Salon du Livre de Montréal | Canada | 1 |
| Salon du Végétal | France | 1 |
| Salon Romand de la Pêche de Loisir | Switzerland | 1 |
| sana srl | Italy | 1 |
| SAT Consultants Pvt. Ltd. | India | 1 |
| Satcar | France | 1 |
| SATTE | India | 1 |
| Saturne Organisation | France | 2 |
| SavoiExpo | France | 4 |
| SBAC (The Society of British Aerospace Companies Ltd.) | UK - United Kingdom | 1 |
| SBE (Salmon Bay Events) | USA - United States of America | 2 |
| SBL Exhibitions Ltd. | Israel | 2 |
| SCMA (Southern California Marine Association) | USA - United States of America | 4 |
| SCTE (Society of Cable Telecommunications Engineers) | USA - United States of America | 1 |
| SDL Exhibitions | Ireland | 3 |
| Seatrade Asia | Singapore | 1 |
| Sebime (Asociación Española de Fabricantes Exportadores de Bisutería, Accesorios y Complementos) | Spain | 2 |
| Sécession | France | 1 |
| Sedim | France | 1 |
| Segepex (Société de Gestion du Parc des Expositions du Pays de Lorient) | France | 1 |
| SEIA (Solar Energy Industries Association) | USA - United States of America | 1 |
| SEMA (Société d'encouragement aux Métiers d'Art) | France | 1 |
| Semi North America | USA - United States of America | 15 |
| Semovim | France | 1 |
| Senaf | Italy | 20 |
| Sencomane | Senegal | 4 |
| SeoulMesse ID Inc. | Korea South | 9 |
| SEPA (Solar Electric Power Association) | USA - United States of America | 1 |
| SepelCom | France | 18 |
| Sepic Expositions | France | 1 |
| Service Availability Forum | USA - United States of America | 1 |
| Services International | India | 2 |
| Servicios Forestales y de Exposiciones | Chile | 1 |
| SFIC (Singapore Furniture Industries Council) | Singapore | 1 |
| Sforman S.A. | France | 1 |
| SFSC (Société française de sexologie clinique) | France | 1 |
| SFSTP (Societe francaise des sciences et techniques pharmaceutiques) | France | 1 |
| SFV (Société Française du Vide) | France | 3 |
| Shanghai Besway Exhibition Company Limited | China | 1 |
| Shanghai Gehua Exhibition Service Co.,Ltd. | China | 8 |
| Shanghai Huayu Exhibition Services Co., Ltd. | China | 1 |
| Shanghai Shenshi Exhibition Serveice Co., Ltd. | China | 3 |
| Shanghai UBM Sinoexpo International Exhibition Co., Ltd. | China | 9 |
| Shanghai World Expo (Group) Co., Ltd. | China | 1 |
| Shanxi Zhenwei Exhibition Co., Ltd | China | 2 |
| Shenyang Renaissance International Exhibitions Co., Ltd. | China | 1 |
| Shephard Group | UK - United Kingdom | 10 |
| Shibowei International Exhibition Co.,Ltd | China | 2 |
| Shine Event | Morocco | 1 |
| SHM Communication | Algeria | 1 |
| SHM Events | Algeria | 1 |
| Show Management | USA - United States of America | 1 |
| Shunde Expo | China | 1 |
| SIA (SnowSports Industries America) | USA - United States of America | 1 |
| SIAE (Shanghai International Advertising & Exhibition Company) | China | 1 |
| SIAL | France | 6 |
| Sial Montréal | Canada | 1 |
| SIAM (Salon international de l'agriculture au Maroc) | Morocco | 1 |
| SIAO (Salon international de l'artisanat de Ouagadougou) | Burkina Faso | 1 |
| Siberian Fair | Russia | 49 |
| Sibico International Ltd. | Russia | 3 |
| SICMO (Shanghai International Conference Management Orgnization) | China | 1 |
| SICVERL (Syndicat des Constructeurs de Véhicules et Résidences de Loisirs) | France | 1 |
| SID, Inc. (Society for Information Display) | USA - United States of America | 2 |
| SIE Secretariat | Malaysia | 1 |
| Siec (Shanghai International Exhibition Co., Ltd.) | China | 7 |
| Sign Association of Canada | Canada | 1 |
| SIMA (Syrian International Marketing Association) | Syria | 4 |
| Simmons Gallery | UK - United Kingdom | 1 |
| Singapore Exhibition Services Pte Ltd | Singapore | 38 |
| Singex Exhibitions Pte Ltd | Singapore | 2 |
| Sipec | France | 1 |
| SIRA Algérie | Algeria | 4 |
| SJAC (Society of Japanese Aerospace Companies) | Japan | 1 |
| Skopje Fair | Macedonia (FYROM) | 10 |
| SLAM (syndicat national de la librairie ancienne et moderne) | France | 1 |
| Slovenian Convention Bureau | Slovenia | 1 |
| SLV (Schweizerischer Landmaschinen-Verband) | Switzerland | 1 |
| Smac | France | 1 |
| Small+ | Greece | 1 |
| SME (Society of Manufacturing Engineers) | USA - United States of America | 14 |
| SME Canada (Society of Manufacturing Engineers) | Canada | 5 |
| SMIE (Shanghai Modern International Exhibition Co. Ltd) | China | 10 |
| SMMT (Society of Motor Manufacturers and Traders) | UK - United Kingdom | 2 |
| SMOP (Organização de Feiras de Moda) | Portugal | 1 |
| SNIA Europe (Storage Networking Industry Association) | UK - United Kingdom | 1 |
| SOC (Société d’Organisation Culturelle) | France | 1 |
| Soccerex | UK - United Kingdom | 1 |
| Soccerex Dubai | UAE - United Arab Emirates | 1 |
| Societatea Romana de Radiodifuziune | Romania | 2 |
| Société Française de Radiologie | France | 1 |
| Sodes | France | 6 |
| Sofex (Société des Foires Expositions de Strasbourg) | France | 1 |
| Sofex Americas Ltda. | Colombia | 2 |
| Sogecos Spa | Italy | 3 |
| Sogefoires International | Tunisia | 12 |
| SolarPACES (Solar Power and Chemical Energy Systems) | France | 1 |
| SolarPlaza | Netherlands | 1 |
| Sollentuna Expo Center | Sweden | 2 |
| Sologne Nature Environnement | France | 1 |
| Sommet de l'élevage | France | 1 |
| Sopevi | France | 1 |
| Source (Centre national de ressources du tourisme et du patrimoine rural) | France | 1 |
| Sovencon LLC | Russia | 2 |
| Soysal | Turkey | 1 |
| Soyuzagromash | Russia | 1 |
| Space | France | 1 |
| Spas Organisation | France | 10 |
| Spat SA | France | 5 |
| Spatex Ltd. | UK - United Kingdom | 1 |
| Spazio Progress | Italy | 1 |
| SPE (Society of Petroleum Engineers) | USA - United States of America | 4 |
| Spearhead Exhibitions Ltd. | UK - United Kingdom | 6 |
| Specialised Exhibitions | South Africa | 15 |
| SPFW | Brazil | 1 |
| SPI (The Society of the Plastics Industry, Inc.) | USA - United States of America | 1 |
| Spie (International Society for Optical Engineering) | USA - United States of America | 22 |
| Spie Europe | UK - United Kingdom | 4 |
| Spielwarenmesse eG | Germany | 2 |
| Spintelligent (Pty) Ltd | South Africa | 11 |
| Sport Expo Ltd. | Ukraine | 2 |
| Sportys | France | 1 |
| sprl GWA | Belgium | 1 |
| Squad International | France | 1 |
| SSNAME (Shanghai Society of Naval Architects & Marine Engineers) | China | 1 |
| St. Petersburg Express | Russia | 3 |
| Standard Board (UK) | UK - United Kingdom | 1 |
| Standard Board Pvt. Ltd. | India | 1 |
| Standing | France | 4 |
| STCEC (Shanghai Technology Convention and Exhibition Co., Ltd.) | China | 3 |
| Steenhaus Events | Luxembourg | 1 |
| Step Exhibitions Ltd. | UK - United Kingdom | 3 |
| Stier Group Ltd. | Israel | 15 |
| Stocexpo Ltd. | UK - United Kingdom | 2 |
| Stockholm International Fairs | Sweden | 5 |
| Stoffen Spektakel | Netherlands | 1 |
| Strategic Marketing and Exhibitions | UAE - United Arab Emirates | 2 |
| Streamline Marketing | UAE - United Arab Emirates | 2 |
| Strechy Praha s.r.o. | Czech Republic | 1 |
| Studio Lobo Srl | Italy | 6 |
| Stylepark AG | Germany | 1 |
| Sudio XXB | France | 1 |
| Summit Trade Events Ltd | UK - United Kingdom | 3 |
| Sunry Advertising and Exhibition Co., Ltd. | China | 1 |
| Suomen Messut | Finland | 54 |
| Supreme Council for Research | Egypt | 1 |
| Survey Fuarcilik Danýsmanlik Ltd | Turkey | 4 |
| Survey Marketing & Consulting S.L. | Spain | 1 |
| Survey Marketing + Consulting GmbH | Germany | 11 |
| Sushi Communication | France | 1 |
| Suzhou International Expo. Center Co. Ltd | China | 5 |
| Svenska Mässan | Sweden | 22 |
| Svet Knihy | Czech Republic | 1 |
| Syfac | France | 1 |
| Symbiose-Communication-Environnement | Algeria | 1 |
| Symop (Syndicat des entreprises de technologies de production) | France | 3 |
| Symposium international de l'eau | France | 1 |
| Syndicat des biologistes | France | 1 |
| Synergy | Netherlands | 11 |
| SZWA (Shenzhen Watch Clock Association) | China | 1 |
