- MeadWestvaco (Firm)✖[remove]1,602
- Forest Science Laboratory (Summerville, S.C.)244
- Westvaco Experimental Forest (Georgetown, S.C.)176
- West Virginia Pulp and Paper Company123
- Summerville Research Center (Summerville, S.C.)120
- West Virginia Research Center (Rupert, W. Va.)76
- Charlottesville Research Center (Ivy, Va.)65
- Winnsboro Research Center (Winnsboro, S.C.)49
- Appalachian Experimental Project (Tyrone, Pa.)44
- South Carolina Forest Research Center (Summerville, S.C.)41
- Manteo Research Center (Manteo, N.C.)38
- Appalachian Forest Research Center (Rupert, W. Va.)28
- West Virginia Pulp and Paper Company North Carolina Research Project (Manteo, N.C.)24
- West Virginia Experimental Forest (Georgetown, S.C.)20
- Hancock Research Center (Hancock, Md.)19
- Parkersburg Research Center (Parkersburg, W. Va.)16
- Charlottesville Research Center (Crozet, Va.)15
- Central Forest Research Center (Wickliffe, Ky.)9
- Coudersport Research Center (Coudersport, Pa.)9
- Tree Improvement Center (Ravenel, S.C.)6