| Bullock Electric Manufacturing | Detroit | MI |
| Bumstead & Woolford | Gaylord | MI |
| Bunge | Marks | MI |
| Bureau Of Yards & Docks | Lincoln Park | MI |
| Burnett & Miller | Detroit | MI |
| Burn Zol | Grand Rapids | MI |
| Burroughs | Detroit | MI |
| Burroughs | Plymouth | MI |
| Burroughs School | Detroit | MI |
| Burt Portland Cement | Bellevue | MI |
| Byron Middle School | Byron | MI |
| Cadey Aluminum Foundry | Grand Rapids | MI |
| Cadillac Malleable Iron | Cadillac | MI |
| Cadillac Motor Car | Detroit | MI |
| Cadillac Plastic & Chemical | Flint | MI |
| Calcinator | Bay City | MI |
| Caldwell Elementary | Detroit | MI |
| Calgon | Rockwood | MI |
| Calhoun Foundry | Homer | MI |
| Calhoun Gas | Battle Creek | MI |
| Callahan Building | Bay City | MI |
| Calumet & Hecla | Calumet | MI |
| Calumet & Hecla | Lake Linden | MI |
| Calvary Baptist Church | Muskegon | MI |
| Campbell | West Olive | MI |
| Campbell Rock Wool | Detroit | MI |
| Campbell Wyant & Cannon | Muskegon | MI |
| Camp Wathana | Holly | MI |
| Cannon Muskegon | Muskegon | MI |
| Capac Elementary School | Capac | MI |
| Capac Paper | Capac | MI |
| Capital City Lumber | Lansing | MI |
| Capital Wagon Works | Ionia | MI |
| Capitol City Lumber | Lansing | MI |
| Capitol Insulation | Warren | MI |
| Car-Bee | Detroit | MI |
| Carboloy | Detroit | MI |
| Carleton Elementary School | Detroit | MI |
| Carmet | Madison Heights | MI |
| Carnation Milk Products | Sparta | MI |
| Carroll Industrial | Detroit | MI |
| Cass Technical High School | Detroit | MI |
| Castile Mining Company, Eureka Mine | Bessemer | MI |
| Catalytic Combustion | Detroit | MI |
| Catholic Church | Hartland | MI |
| Celotex | Lansing | MI |
| Celotex | Detroit | MI |
| Center for the Arts | Midland | MI |
| Centerville High School | Centreville | MI |
| Central Elementary School | Holland | MI |
