Communications Test Design, Inc. company was founded in 1975 by chairman and CEO Jerry Parsons, his father Donald, and brother Dick. CTDI is owned and led by the Parsons family. Communications Test Design (CTDI) repairs, installs, tests, and manufactures telecommunications equipment. The company's main business is providing repair and maintenance services to wireless and wireline carriers, and cable companies, as well as equipment makers such as Alcatel Lucent and Cisco. It also offers warehousing and distribution services, product testing, and equipment installation -- from laying cable to installing customer premise equipment. Additionally, CTDI makes a line of broadband switching and access equipment and provides contract manufacturing services.

Shin Corporation has holdings in dozens of businesses in the wireless telecommunications, transportation, media, and finance sectors. Flagship business Thaicom operates commercial communication satellites; Internet service provider CS Loxinfo, with more than 300,000 subscribers, is 40%-owned by Thaicom. Shin owns 43% of Advanced Info Service, Thailand's leading mobile telephone service provider. Other holdings include budget airline Thai AirAsia and advertising agency SC Matchbox. Shin was founded in 1983 by former Prime Minister Thaksin Shinawatra, who sold his stake in 2006 to a foreign company.

Xfone USA offers alternative local and long-distance services to residential and business customers primarily in the south central and eastern US. The company is certified as a competitive local-exchange carrier in Louisiana, Texas, and its home state of Mississippi. In addition to traditional phone services, Xfone USA offers cable TV and broadband Internet access. Commercial clients include planned communities and apartment buildings. The company also provides such business-oriented services as Web design and hosting, as well as data network maintenance and support. Xfone USA is a subsidiary of Texas-based Xfone Inc.

The Great Dane of telecom, TDC is the leading telecommunications network operator in Denmark. The company provides wireless, domestic local and long-distance landline, international, Internet, and cable television services to about 12 million consumer and commercial customers. TDC's international holdings include stakes in telecommunications companies in the Nordic region, but the bulk of sales are made in Denmark. The company serves 3 million customers in Switzerland (its second largest market in terms of sales) through its Sunrise Communications subsidiary. Investment group Nordic Telephone Company owns 88% of TDC; Nordic Telephone Company is a subsidiary of Luxembourg-based Angel Lux Parent.

Sandvine develops equipment used by broadband service providers to better manage peer-to-peer network traffic. In addition to traffic management, the company's products enable network administrators to manage network security features. Sandvine serves clients including Hughes Network Systems and has sales partnerships with companies such as Telindus. The company received private funding from such investors as BDC Venture Capital, Tech Capital Partners, and VenGrowth. Sandvine was co-founded by veterans of former digital video distribution systems developer Pixstream, which was acquired by Cisco Systems.

Tekelec, the broadband data management company, enables billions of people and devices to surf, talk, and text. Our solutions allow service providers to give consumers a consistent and tailored broadband experience. We handle network complexity with a portfolio that manages and capitalizes on the exponential growth in data applications and traffic. Tekelec has more than 25 offices around the world serving customers in more than 100 countries.

Modco makes voltage-controlled oscillators (VCOs) for use in various applications, including medical, industrial, and wireless communications. Modco company offers custom and standard, general-purpose VCOs, along with drop-in replacements for oscillators made by other manufacturers. Modco also provides specialty VCO packaging. CEO Robert Wehe, who started the company in 1992, owns Modco.

Iridium Communications Inc. provides satellite voice and data communications services to businesses, the U.S. and foreign governments, non-governmental organizations, and consumers worldwide. It offers post-paid mobile voice and data satellite communications services; prepaid mobile voice satellite communications services; high-speed data services; machine-to-machine services for sending and receiving data from one location to other, such as from fixed and mobile assets in remote locations to a central monitoring station; and ancillary services, including inbound connections from the public switched telephone networks, SMS, SIM activation and reactivation, and other peripheral services. Iridium Communications Inc. also provides research and development services that assist customers in developing new technologies compatible with its systems. In addition, it offers voice and data equipment, including satellite handsets, voice and data modems, high-speed data devices, and machine-to-machine data devices. Further, the company supplies accessories that include holsters, ear buds, portable auxiliary antennas, antenna adaptors, and USB data cables and charging units. It serves various markets, including emergency services, maritime, government, utilities, oil and gas, mining, leisure, forestry, and construction and transportation. The company sells its products and services to commercial end-users through a wholesale distribution network of service providers, value added resellers, and value-added manufacturers. As of December 31, 2009, it had approximately 369,000 subscribers. Iridium Communications Inc. is headquartered in Bethesda, Maryland.

BluTower is a global provider of cost-effective wireless automatic meter reading (AMR/AMI) systems to water, electricity and gas utilities as well as sub-metering users. A comprehensive range of water meters is also supplied. Products are sold under the BluTower brand. BluTower’s powerful AMR systems are employed commercially by water, gas and electric customers in many countries including the United States, Mexico, Australia, New Zealand, France, Germany, Ireland and the United Kingdom. The powerful BluTower AMR solutions enable utilities and sub-metering users to instantly improve their customer service, cost-efficiency, meter reader safety and overall operational effectiveness. Our open systems approach to AMR provides the foundation of our solutions, enabling quick and easy integration into our customers’ existing metering infrastructure. Our use of standard interfaces and protocols enables our products to work with many types of billing software systems, hand-held computers and meters, ensuring that customers’ investment in existing systems are protected.BluTower has offices in the United Kingdom and the USA and an international distribution network covering the UK, North America, Mexico, Europe and Australasia. The BluTower goal is to provide fully-featured products and solutions at highly competitive prices to utility and sub- metering customers. Blue Tower Communications Ltd. is located in Aldershot, UK from where design and engineering is conducted. BluTower, Inc has offices in Ocala, FL and Cary, NC. The Cary office provides primary sales and technical support for the Utility market; Ocala supports the Sub-Metering sector and serves as our North American distribution facility.

Virgin Mobile USA provides voice and data wireless communications services to about 5 million subscribers across the US under on the Virgin banner and over Sprint Nextel's network. Targeting the youth market with value- oriented pricing, flexible calling plans, and stylish phones, the company offers mobile products and services intended to appeal to consumers under age 35. Virgin Mobile USA sells its phones with pre-paid and pay-as-you-go service plans through about 40,000 third-party retail stores, including Best Buy, Target, and Wal-Mart. Without a network to call its own, the company concentrates on sales and marketing. Virgin Mobile USA was acquired in late 2009 by Sprint Nextel for about $483 million.

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