Industry: Telecommunications

Zoom Telephonics, Inc. designs, makes, and supports communications equipment, primarily for Internet access and wifi and primarily modems, through retailers such as Amazon, Best Buy, Target, and Walmart. 

Ecommerce National, LLC, which does business as TollFreeDeals.com, is telecommunications company acting as a gateway carrier for overseas call centers.

Appa, Inc. is a telecommunications company with a specialty in international calling.

Southern California Telephone Company provides residential and commercial services, in both traditional connectivity and IP telecom services.

Uniti Group Inc. is a real estate investment trust that acquires and constructs critical communications infrastructure and provides wireless infrastructure for the communications industry.

Nutronix Revolution, Inc., which does business as a NXR Global, sells subscription TV and streaming services based on a monthly fee.

Altice USA, Inc. offers cable television and other services, including broadband, pay TV, telephone, wifi hotspot access, proprietary contant and advertising. It has approximately 4.9 million customers in 21 states. 

West Corporation is a telecommunications service provider. It is a subsidiary of Apollo Global Management.

SkyTel Systems, LLC offers cloud-based VoIP systems along with voice video, contact center, and managed IT services.

Twilio, Inc. calls itself a cloud communications platform as a service (CPaaS) company. Among other things, it provides connections between HTTP and public switched telephone networks.