SEMCO
| Acronym | Definition |
|---|---|
| SEMCO | Samsung Electro-Mechanics Co., Ltd. |
| SEMCO | South and East Mediterranean College of Oncology (International Committee for Establishment and Development of Oncology Centers) |
| SEMCO | Southeastern Michigan Computer Organization, Inc. |
| SEMCO | Systems Engineering and Management Company |
| SEMCO | Salisbury Engineering Manufacturing Company (Missouri) |