What company is John Callahan working for?
John Callahan works for Diversified Site Works.
What is John Callahan's function at Diversified Site Works?
John Callahan is Vice President at Diversified Site Works.
Where is John Callahan based?
John Callahan is based out of Annapolis, Maryland, United States.
What is John Callahan's work email address?
John Callahan's professional email address is j*****@dswbui***.com
Who are John Callahan's co-workers?
John Callahan's colleagues are Michael Coles, Charles Ice, Kent Stark, Michael Manifold.
