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Research Frontiers Incorporated engages in the development and marketing of technology and devices to control the flow of light worldwide. It develops and licenses suspended particle device (SPD-Smart) light-control technology to companies that manufacture and market the SPD-Smart chemical emulsion, light-control film made from the chemical emulsion, the light-control panels made by laminating the film, and electronics to power end-products incorporating the film, as well as lamination services for and the end-products, such as windows, skylights, and sunroofs. The company's SPD-Smart light-control technology is used in various product applications, including windows, sunshades, skylights, and interior partitions for homes and buildings; automotive windows, sunroofs, sun-visors, sunshades, rear-view mirrors, instrument panels, and navigation systems; aircraft windows; museum display panels, and eyewear products; and flat panel displays for electronic products. It serves architectural, automotive, marine, and aerospace and appliance applications. The company was incorporated in 1965 and is headquartered in Woodbury, New York.

Renalytix Plc develops artificial intelligence-enabled in vitro diagnostic solutions for kidney diseases. The company offers KidneyIntelX, a diagnostic platform that employs an artificial intelligence-enabled algorithm that combines various data inputs, including validated blood-based biomarkers, inherited genetics, and personalized patient data from electronic health record systems to generate a unique patient risk score. Its products are used in kidney disease diagnosis and prognosis, clinical care, patient stratification for drug clinical trials, and drug target discovery. Renalytix Plc has a license agreement with Mount Sinai Health System to develop and commercialize licensed products in connection with the application of artificial intelligence for the diagnosis of kidney disease; and Joslin Diabetes Center, Inc. for developing and commercializing products for diagnosing and predicting kidney disease using biomarkers. The company also has a partnership agreement with Atrium Health, Wake Forest Baptist Health, and Wake Forest School of Medicine to implement an advanced clinical care model designed to improve kidney health and reduce kidney disease progression and kidney failure. The company was formerly known as Renalytix AI plc and changed its name to Renalytix Plc in June 2021. Renalytix Plc was incorporated in 2018 and is based in New York, New York.

Sangoma Technologies Corporation develops, manufactures, distributes, and supports voice and data connectivity components for software-based communication applications worldwide. The company offers Switchvox, a voice over internet protocol phone system; Switchvox Cloud, a unified communications solution, as well as provides cloud communication solutions. It offers SIP Trunking, a telephone service for one or multiple locations; PBXact Cloud, a centralized internet based solution; Asterisk and FreePBX, an open source IP PBX software; and FAXStation, a fax-over-IP solution. In addition, the company provides desk phone, DECT phones, and headset related products. Further, it offers VoIP gateways, session border controllers, telephony card, and managed service provider services. Sangoma Technologies Corporation was founded in 1984 and is headquartered in Markham, Canada.

VirnetX Holding Corporation, through its subsidiary VirnetX, Inc., operates as an Internet security software and technology company primarily in the United States. The company develops software and technology solutions, including secure domain name registry and GABRIEL Connection Technology that are designed to secure communications over the Internet using zero trust network access. It also offers a portfolio of licenses and services, such as VirnetX One, a security-as-a-service platform that protects enterprise applications, services, and infrastructure from cyber-attacks; GABRIEL Connection Technology software development kit to assist with rapid integration of its techniques into existing software implementations; War Room software that offers safe and secure video conferencing meeting environment where sensitive communications and data is invisible to those not authorized to view it; and VirnetX Matrix that provides security for internet-enabled enterprise applications and their connected devices. In addition, the company provides GABRIEL Collaboration Suite that enables seamless and secure cross-platform communications between users' devices. It serves domain infrastructure and communication service providers, and system integrators; and enterprise customers, developers, and original equipment manufacturers of chips, servers, desktops, smart phones, tablets, laptops, net books, and other devices in the IP-telephony, mobility, fixed-mobile convergence, and unified communications markets. The company has a partnership with ObjectSecurity LLC to provide secure cyber vulnerability analysis in private cloud environments. VirnetX Holding Corporation was incorporated in 2005 and is headquartered in Zephyr Cove, Nevada.