Michigan
| Company | Category | Area | Address | Web | Contact person | |
| ST GREGORYS EPISCOPAL CHURCH | Churches | Michigan | 1200 SEMINOLE RD, MUSKEGON, Muskegon, Michigan, 49441-4347, USA | - | - | John S David |
| ST GREGORYS MIGRANT MINISTRY | Catholic Church | Michigan | 316 S PEACH AVE, HART, Oceana, Michigan, 49420-1021, USA | - | - | - |
| ST GREGORYS PARISH | Clergy | Michigan | 316 S PEACH AVE, HART, Oceana, Michigan, 49420-1021, USA | - | - | RON SCHNIEDER |