- MeadWestvaco (Firm)1,477
- Forest Science Laboratory (Summerville, S.C.)204
- Westvaco Experimental Forest (Georgetown, S.C.)168
- West Virginia Pulp and Paper Company123
- North Carolina State University. College of Natural Resources104
- Summerville Research Center (Summerville, S.C.)98
- West Virginia Research Center (Rupert, W. Va.)69
- Charlottesville Research Center (Ivy, Va.)64
- Appalachian Experimental Project (Tyrone, Pa.)44
- Manteo Research Center (Manteo, N.C.)38
- Winnsboro Research Center (Winnsboro, S.C.)36
- Appalachian Forest Research Center (Rupert, W. Va.)27
- West Virginia Pulp and Paper Company North Carolina Research Project (Manteo, N.C.)24
- South Carolina Forest Research Center (Summerville, S.C.)21
- West Virginia Experimental Forest (Georgetown, S.C.)20
- Hancock Research Center (Hancock, Md.)19
- North Carolina State University. College of Natural Resources -- Students17
- Parkersburg Research Center (Parkersburg, W. Va.)15
- Charlottesville Research Center (Crozet, Va.)9
- Coudersport Research Center (Coudersport, Pa.)9