With over 37,000 employees in 46 states, the District of Columbia, and Puerto Rico, GCA serves a variety of sectors, including K-12 schools, higher education, manufacturing, corporate office buildings, high-tech, bio-pharmaceutical, nuclear power, energy & utilities, defense, the rental car market, and others.arket Expertise. GCA Services Group focuses on clients where the quality of cleaning, safety, maintenance, and appearance is critical to the basic function of the establishment. We serve a wide variety of market sectors, including the following, with our vast expertise and superior quality.
Tokyo Tsushin Kogyo K.K. (Tokyo Telecommunications Engineering Corporation) was founded by Masaro Ibuka and Akio Morita in 1946. The company changed its name to Sony Corporatâ¦ion in 1958.
Bill Gates founded Windows, a company that created Microsoft. Bill Gates invented Microsoft in 1975 when he was 20 years old. This is largely inaccurate. Bill Gates founded a â¦ software company called Microsoft in April 1975, when he was 19, along with Paul Allen. William Henry Gates III (Bill Gates) was born  on October 28, 1955, in Seattle Washington. His father's name is  William H. Gates Sr. and his mother's name is Mary Max â¦ well. Bill  Gates grew up with an older sister, Kristianne, and a younger  sister, Libby.