C.G.T is not a real company, it operates under a virtual world generator called ROBLOX invented in San Mateo California U.S.A.
For finding C.G.T on WWW.ROBLOX.COM copy and paste this link;
http://www.roblox.com/My/Groups.aspx?gid=700206
For finding C.G.T on WWW.ROBLOX.COM copy and paste this link;
http://www.roblox.com/My/Groups.aspx?gid=700206