| Company Name | Type | Status |
|---|---|---|
| ALUMNI OF GRANTHAM IN-SERVICE TRAINED TEACHERS KINDERGARTEN LIMITED | Company limited by guarantee | Dissolved |
| GRANTHAM ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| GRANTHAM INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| LADY GRANTHAM VILLAS RESIDENTS' ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| GRANTHAM COLLEGE OF EDUCATION PAST STUDENTS' ASSOCIATION | Company limited by guarantee | Live |