| DECC | D C Education Coalition for Change 
| Others |
| DECC | DC Education Coalition for Change
| Others |
| DECC | Defense Enterprise Computing Center
| Others |
| DECC | Defense Enterprise Computing Centers
| Others |
| DECC | Defense Experts Coffee Club
| Others |
| DECC | Delaware Early Childhood Center
| Others |
| DECC | Delaware Early Childhood Council
| Others |
| DECC | Denbigh Early Childhood Center
| Others |
| DECC | Denver Employees Combined Campaign
| Others |
| DECC | Denver Employees' Combined Campaign
| Others |
| DECC | Department of Energy and Climate Change
| Others |
| DECC | Department of Energy and Congenital Cretins
| Others |
| DECC | Department of Energy Climate Change
| Others |
| DECC | Department of Environment, Climate Change
| Others |
| DECC | Disaster Environment and Climate Change
| Others |
| DECC | Disordered Eating Center of Charleston
| Others |
| DECC | Diversity Equity and Campus Climate
| Others |
| DECC | Duluth Entertainment Convention Center
| Others |
| DECC | Durban Early Car Club
| Others |