Calix, Inc., together with its subsidiaries, engages in the provision of cloud and software platforms, and systems and services in the United States, rest of Americas, Europe, the Middle East, Africa, and the Asia Pacific. Its cloud and software platforms, and systems and services enable broadband service providers (BSPs) to provide a range of services. The company provides Calix Cloud platform, a role-based analytics platform comprising Calix Engagement Cloud, Calix Service Cloud, and Calix Operations Cloud, which are configurable to display role-based insights and enable BSPs to anticipate and target new revenue-generating services and applications through mobile application, such as CommandIQ for residents and CommandWorx for businesses; Calix Intelligent Access EDGE, an access network solution for automated and intelligent networks; and Calix Revenue EDGE, a premises solution for subscriber managed services. It also offers SmartLife managed services, including SmartHome managed services and applications to enhance, operate and secure the connected experience of subscribers in their home; SmartTown managed services that reimagine community Wi-Fi as a ubiquitous, secure, and managed experience across a BSP's footprint; and SmartBiz managed services that address the business networking and productivity needs of business owners with an all-in-one managed service. In addition, the company provides Wi-Fi systems under GigaSpire and GigaPro brands to be ready for deployment as a complete subscriber experience solution for BSP's residential and business subscribers. It offers its products through its direct sales force and resellers. The company was incorporated in 1999 and is headquartered in San Jose, California.

RingCentral, Inc., together with its subsidiaries, provides cloud communications, video meetings, collaboration, and contact center software-as-a-service solutions worldwide. The company's products include RingCentral Message Video Phone that provides a unified experience for communication and collaboration across multiple modes, including HD voice, video, SMS, messaging and collaboration, conferencing, online meetings, and fax; RingCentral Contact Center, a collaborative contact center solution that delivers AI-powered omnichannel and workforce engagement solutions with integrated RingCentral MVP; and RingCX, an AI-powered contact center that a native delivers omnichannel experience. It provides RingCentral Video, a video meeting service that includes the company's RCV video and team messaging capabilities; offers video and audio conferencing, team messaging, file sharing, contact, task, and calendar management, as well as pre-meeting, in-meeting, and post-meeting capabilities. In addition, the company offers RingCentral Professional Services, which include consultation, UCaaS and CCaaS implementation, VoIP phone system adoption, configuring custom workflows, customer and user onboarding, ongoing support, advanced support, managed services, and more. It serves a range of industries, including financial services, education, healthcare, legal services, real estate, retail, technology, insurance, construction, hospitality, state and local government, and others. It sells its products to enterprise customers, as well as small and medium-sized businesses through resellers and distributors, partners, and global service providers. RingCentral, Inc. was incorporated in 1999 and is headquartered in Belmont, California.

CommScope Holding Company, Inc. provides infrastructure solutions for communications, data center, and entertainment networks worldwide. The company operates through Connectivity and Cable Solutions (CCS); Outdoor Wireless Networks (OWN); Networking, Intelligent Cellular and Security Solutions (NICS), and Access Network Solutions (ANS) segments. The CCS segment provides network solutions for indoor and outdoor network applications; and fiber optic and copper connectivity and cable solutions for use in telecommunications, cable television, residential broadband networks, data centers and business enterprises. The OWN segment provides base station antennas, radio frequency filters, tower connectivity, microwave antennas, metro cell products, cabinets, steel towers, accessories, wireless Spectrum management business and Comsearch products. The NICS segment offers indoor and outdoor Wi-Fi and long-term evolution (LTE) access points, access and aggregation switches; an Internet of Things suite, on-premises and cloud-based control and management systems; and software and software-as-a-service applications. The ANS segment offers cable modem termination systems, video infrastructure, distribution and transmission equipment and cloud solutions that enable facility-based service providers to construct a state-of-the-art residential and metro distribution network. It offers its products and services through independent distributors, specialized resellers and distributors, wireless and wireline operators, original equipment manufacturers, and system integrators, as well as directly to customers. The company was formerly known as Cedar I Holding Company, Inc. and changed its name to CommScope Holding Company, Inc. in January 2011. CommScope Holding Company, Inc. was founded in 1976 and is based in Claremont, North Carolina.

Ribbon Communications Inc. provides communications technology in the United States, Europe, the Middle East, Africa, the Asia Pacific, and internationally. It operates through two segments, Cloud and Edge, and IP Optical Networks. The Cloud and Edge segment provides software and hardware products, solutions, and services for voice over internet protocol communications, voice over long-term evolution, and voice over 5G communications, and unified communications and collaboration. It also offers session border controllers; and network transformation products, such as signaling products, call controllers, media gateways, and application servers. This segment serves private, public, or hybrid cloud infrastructures, as well as data centers, enterprise premises, and service provider networks. The IP Optical Networks segment provides hardware and software products and solutions for IP networking, switching, routing, and optical transport for technologies, such as 5G, distributed cloud computing, and corresponding applications. It also offers multiple solutions, including 5G-native solutions for mobile-backhaul, metro and edge aggregation, core networking, data center interconnect, multi-service access, and transport solutions for wholesale carriers. This segment serves utilities, government, defense, finance, transportation, and education and research industries, as well as service providers and enterprises. The company was formerly known as Sonus Networks, Inc. and changed its name to Ribbon Communications Inc. in November 2017. Ribbon Communications Inc. was founded in 1997 and is headquartered in Plano, Texas.

Ooma, Inc. provides communications services and related technologies for businesses and consumers in the United States and Canada. The company's products and services include Ooma Office, a cloud-based multi-user communications system for small and medium-sized businesses; Ooma Connect, which delivers fixed wireless internet connectivity; and Ooma Enterprise, a unified-communications-as-a-service (UCaaS) solution. It also provides Ooma AirDial, a plain old telephone service; PureVoice HD, a residential phone services; Ooma basic that provides unlimited personal calling within the United States; and Ooma Premier, a suite of advanced calling features on a monthly or annual subscription basis. In addition, the company offers Ooma Telo, a home communications solution designed to serve as the primary phone line in the home; Ooma Telo Air, a wireless Ooma Telo with built-in Wi-Fi and Bluetooth; and Ooma Telo LTE, which combines the Ooma Telo base station with the Ooma LTE Adapter and battery back-up. Further, it provides Ooma Mobile HD app that allows users to make and receive phone calls and access Ooma features and settings; 2600Hz provides business communication applications; Talkatone mobile app; and OnSIP, an UCaaS solutions. The company offers its products through direct sales, distributors, retailers, and resellers, as well as online and sale representatives. Ooma, Inc. was incorporated in 2003 and is headquartered in Sunnyvale, California.

Sangoma Technologies Corporation, together with its subsidiaries, develops, manufactures, distributes, and supports voice and data connectivity components for software-based communication applications in the United States of America and internationally. The company offers communications platforms comprising pure cloud and hybrid unified communications as a service, and on-premises systems; retail and wholesale SIP trunking, as well as fax as a service; Sangoma TeamHub, a unified communications and collaboration platform for business productivity; Sangoma Meet, a multi-party video conferencing platform; and Sangoma CX, a cloud-native contact center suite that enables businesses to manage inbound interactions across multiple channels. It also provides productivity apps comprising appointment suite, call flow, curbside, phone monitor, send, and urgent notify; managed security services, such as antispam, web filtering, antivirus, botnet and domain reputation, app control and intrusion prevention system services, and managed firewall device; and network management solutions, including managed internet, VPN, and SD-WAN, as well as secure Wi-Fi access points. In addition, the company offers open-source software products, such as Asterisk, an open-source framework for building real-time and multi-protocol communications applications; FreePBX, a web-based open-source GUI for controlling and managing Asterisk; and PBXact, a commercial UC system. Further, it provides desktop and wireless phones, network connectivity hardware, wireless and wired headsets, accessories, analog and digital telephony cards, and Wi-Fi access points; and session border controllers, VoIP gateways, and PSTN interface and media processing boards. The company serves distributors, resellers, enterprises, original equipment manufacturers service providers, and end users comprising small, mid-sized, and large businesses. Sangoma Technologies Corporation is headquartered in Markham, Canada.

Crexendo, Inc. provides cloud communication platform and services, video collaboration, and managed IT services for businesses in the United States and internationally. It operates through two segments, Cloud Telecommunications Services and Software Solutions. The Cloud Telecommunications segment provides telecommunications services that transmit calls using Internet protocol (IP) or cloud technology, which converts voice signals into digital data packets for transmission over the Internet or cloud; and broadband Internet services, as well as develops end user portals for account and license management, and billing and customer support. This segment is also involved in the sale and lease of cloud telecommunications equipment. In addition, it offers hardware, software, and unified communication solutions for businesses using IP or cloud technology over high-speed internet connection through various devices and user interfaces, such as desktop phones and/or mobile, and desktop applications under the Crexendo brand name. The Software Solutions segment provides a suite of unified communications, collaboration, video conferencing, and contact center solutions. This segment also offers SNAPsolution, an IP-based platform; SNAPaccel, a software-as-a-service based software; subscription maintenance and support services; and professional services, including consulting, technical support, resident engineer, design, and installation services. The company was formerly known as iMergent, Inc. and changed its name to Crexendo, Inc. in May 2011. Crexendo, Inc. was incorporated in 1995 and is based in Tempe, Arizona.

Everbridge, Inc. operates as a software company that enables customers to anticipate, mitigate, respond to, and recover from critical events in North America and internationally. The company offers Critical Event Management, a SaaS based platform, which offers various software applications for organizations for safeguarding business operations, people resilience, digital operations, smart security, and public safety. Its enterprise applications include mass notification, safety connection, IT alerting, risk intelligence, public warning, community engagement, crisis management, careconverge, control center, travel protector, snapcomms, and E911. The company serves enterprises, small businesses, non-profit organizations, educational institutions, and government agencies in technology, energy, financial services, healthcare and life sciences, manufacturing, media and entertainment, retail, higher education, and professional services sectors. The company was formerly known as 3n Global, Inc. and changed its name to Everbridge, Inc. in April 2009. Everbridge, Inc. was founded in 2002 and is based in Burlington, Massachusetts.