- Congress of Industrial Organizations (U. S.)1
- Congress of Industrial Organizations (U. S.). West Virginia Council.1
- Conservation Commission of West Virginia. Division of Fish Management.1
- Conservation Commission of West Virginia. Division of Forestry.1
- Conservation Commission of West Virginia. Division of Game and Fish.1
- Consolidated Recreation Commission (Morgantown, W. Va.)1
- Consolidation Coal Company. Northern West Virginia Region.1
- Contentment Historical Complex (Ansted, W. Va.)1
- Continental Group (Firm)1
- Continental Publishing Company (Wheeling, W. Va.)1
- Conway Research, Inc.1
- Cooper Gallery (Lewisburg, W. Va.)1
- Cornerstone Genealogical Society (Waynesburg, Pa.)1
- Corporation Tax Bureau (Charleston, W. Va.)1
- Council for West Virginia Archaeology (Huntington, W. Va.)1
- Council of Church Women of Parkersburg (Parkersburg, W. Va.)1
- Council of Historic Organizations (Charleston, W. Va.)1
- Council of the Alleghenies (Grantsville, Md.)1
- Council of the Southern Mountains. Regional Economic Development Commission.1
- Council of the Southern Mountains. West Virginia Branch. McDowell County Chapter.1
