- Library of Congress. Legislative Reference Service. American Law Division1
- MacWilliams, Cosgrove, Snider, Smith and Robinson1
- Macdonald, T. W.1
- Main Street Communications3
- McCain, John C. (John Charles), 1939-1
- Miller, Joyce D. (Joyce Dannen), 1928-20121
- Murphy, Pintak and Gautier Agency, Inc.14
- National Coalition for Women and Girls in Education1
- National Voter Contact7
- Penn and King Communications, Inc.5
- Pleydell, Albert1
- Reich, Robert B.1
- Republic Aviation Corporation1
- Republican National Convention1
- Rohan, William H.1
- Rotary International1
- Sawyer Miller Group3
- Shrum Devine Donilon8
- Sipple: Strategic Communications, Inc.1
- Smith and Haroff, Inc.2