- Assumption Grotto Parish
- Archdiocese of Detroit
- Assumption Grotto Parish Giftshop
- St. Monica Sodality
- Legion of Mary
- Grotto Knights of Columbus
- Opus Sanctorum Angelorum
- Crucifixes by the Sisters of the Holy Cross
- Grotto Press
- Grotto Press - Music
- Grotto Productions
- Call to Holiness