Boingo Wireless tries to answer a question that springs to many a traveler's mind when on the road with a computer -- "Is wireless Internet available around here?" Boingo Wireless company sells access to a global Wi-Fi network of about 100,000 public hot spots through wholesale agreements with wireless network and hot spot operators. Access is offered mainly in such venues as hotels, convention centers, airports, and restaurants, including McDonalds. Additionally, Boingo offers its roaming network and software to ISPs and managed network service providers. Fiberlink, and Verizon Business are among the company's corporate customers. Boingo was established in 2001 by chairman and Earthlink founder Sky Dayton.

Boost Mobile is hoping to get a rise out of the young and the restless mobile phone market. A subsidiary of Sprint Nextel, the unit sells the parent company's mobile services on a prepaid basis across the US, marketing simplified payment plans primarily to the youth market. Boost Mobile, which has more than 3 million subscribers, also offers prepaid calling cards sold under the Re-Boost brand. Because Boost Mobile tailors the marketing message for its products and services to a younger demographic, the company's mobile data services and entertainment offerings are a central part of its product package. These services include text messaging, wireless Internet access, and games.

Broadcast International (BI) provides communication network integration services for large retailers and other geographically dispersed businesses. Broadcast International (BI) utilizes satellite, Internet video streaming, and Wi-Fi technologies to connect businesses with employees and customers. Clients use its networks to deliver training programs and make product announcements. BI primarily uses third-party equipment, but it also supplies some proprietary technologies. BI also offers hosting of video streaming, as well as audio and video production services. Its customers have included Caterpillar, Safeway, and Chevron.

Cable & Wireless Communications Plc company (formerly CWI) provides fixed-line and mobile voice and data services to consumers, governments, and businesses primarily in former British colonies. It serves more than 8 million customers in 30 countries including Macao, Monaco, Panama, and several Caribbean nations. While some of Cable & Wireless Communications' global operating subsidiaries are wholly owned, the company holds smaller equity stakes in others along with public, government, and corporate partners. The company was formed in 2010 when Cable & Wireless split its business into Communications and Worldwide.

Cambridge Broadband aims to transmit its broadband access equipment from Cambridge to the world. Cambridge Broadband company makes wireless broadband transmission gear used in telecom base stations and customer premises equipment. It also offers related software, which allows wireless operators to manage their networks. Cambridge Broadband sells its wares under the VectaStar brand name. High-tech veterans Peter Wharton (CEO) and John Porter (CTO) co- founded the company at the beginning of 2000. Cambridge Broadband's investors include Accel Partners, Amadeus Capital Partners, and TVM Capital.

Celcom trades ringtones for ringgits. Celcom company is the second largest provider of wireless voice and data communications services in Malaysia. It serves about nine million consumer and businesses customers and provides international roaming network access in about 100 countries. Celcom uses partnerships with global communications and technology providers to expand the range of services available to its customers. Celcom company has product and marketing agreements with international mobile provider Vodafone, Google, and Malaysia's top bank Maybank. Celcom is a subsidiary of Malaysia-based mobile telecommunications and consulting holding company Axiata Group.

CellAntenna wants to rid the world of bad cell phone reception.CellAntenna distributes and installs external antennas, signal boosters, and other equipment that improves reception and reduces the number of dropped calls. It also installs in-building repeater systems to improve signal strength in office buildings and sells cell phone jammers to the federal government. CellAntenna's more than 18,000 customers have included Sun Microsystems and AT&T Mobility.

Cellcom Israel is one of Israel's leading wireless telecommunications operator. Founded in 1994, the company provides domestic cellular services, including voice, content, data, and multimedia messaging, throughout the territory. It provides international service through roaming agreements with nearly 500 other communications providers. Cellcom Israel also has fiber-optic transmission and microwave-based network resources that support its cellular network and allow the company to offer limited data and landline phone services primarily to business customers.

Celtro is a manufacturer of communications equipment used to build the landline portion of wireless networks. The company's DynaMate line of voice and data network switches are designed to enable service providers to increase the transmission capacity and speed of their networks. Celtro was founded in 2002 as a business unit of communications equipment manufacturer ECI Telecom. It was spun off the following year as an independent private company. ECI retains a stake in the company and other investors include such venture capital providers as Genesis Partners and Momentum Management.

Cephas Holding Corp engages in the development and marketing of mobile applications in the United States. The company develops applications of the iPhone brand of phone focused primarily on mixed martial arts and combat sports. Its products include faceplates, phone accessories, SMS services, and mobile data applications. The company, through its subsidiary, Legend Credit, Inc., also offers stored value cards, including gift cards bearing the Visa and MasterCard logo, as well as television, DVD, and Internet programming based on mixed martial arts. It also markets the Hello Kitty reloadable debit MasterCard through hellokittycard.com. In addition, Cephas Holding sells a NASCAR-themed, SMS-based text messaging service known as Racemobile.com. The company was formerly known as Legend Mobile, Inc. and changed its name to Cephas Holding Corp in October 2008. Cephas Holding was founded in 1997 and is based in New York, New York.

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