Spectra Communications Group was created in 1999.
Cordiant Communications Group was created in 1995.
Burrell Communications Group was created in 1971.
Martz Communications Group was created in 1986.
Current Communications Group was created on 2000-01-01.
Spectra Energy was created in 2006.
Spectra Records was created in 1997.
Line Spectra was created in 2006.
Inter in group communications is the communication between one group and another. Intra in group communications is communication between the members of a particular group.
Cordiant Communications Group ended in 2003.
Stornoway Communications was created in 2000.
MHP Communications was created in 2010.
Keen Communications was created in 2007.