T-Mobile US, Inc. is a major American wireless carrier headquartered in Bellevue, Washington, operating as T-Mobile in the United States.

AT&T is a leading global provider of telecommunications, wireless, and broadband services.

China Mobile is the world's largest mobile network operator, providing telecommunications and digital services across China and Hong Kong.

Swisscom AG: A Swiss telecom leader offering local, long-distance, mobile, and digital voice/data services globally.

ACREBroadband, based in Iowa, specializes in providing wireless internet and mobile services since 2014.

Sonera, a leading provider of information and communications services in Finland.

NTT DOCOMO, INC.: A Japanese telecom firm providing cellular, satellite, and wireless LAN services.

Mobile Websites: Specializing in converting websites to mobile platforms and offering SEO & PPC services.

Leading telecom provider in Saudi Arabia & beyond, offering ICT, mobile, data, broadband, cloud services & more.

Atlanta-based AirWatch LLC develops and markets global enterprise mobile software for communication, security, and device management.

Menlo Technologies: A global leader in cloud integration, data analytics, and mobile technology solutions.

NYC-based Thirty Labs Inc. is a startup studio innovating OTT and mobile video businesses.

Madrid-based Telefonica SA provides global telecom services, including mobile, broadband, TV, and advanced tech solutions.

Telia AB: A Swedish multinational providing mobile and fixed network telecom services across Eurasia.

Far EasTone: A leading telecommunications provider in Taiwan, ranking third in the industry.

San Francisco-based SetObject offers mobile ad solutions.

Next-gen mobile cloud technology developer.

Digicel: Caribbean mobile network in 25 markets.

Geocell, a Silknet brand, is Georgia's pioneer GSM operator providing fixed and mobile communication.

Uversity: A mobile and data solutions firm specializing in personalized student engagement for enrollment success.