# 21st Century Oncology Services, LLC

Business profile: public business information with links to supporting state records. Data as of October 16, 2026.

- Legal business name: 21st Century Oncology Services, LLC
- Alternative and DBA names: 21st Century Oncology Services, Inc.; 21st Century Services, LLC; Genesiscare Services, Inc.; Genesiscare USA Services LLC
- Entity type: LLC
- Original incorporation date: January 3, 2014
- Time in business: 12 years and 9 months
- Jurisdiction count: 21

## All known addresses

- 2711 Centerville Rd Ste 400, Wilmington, DE 19808 (listed in Alabama, Maryland)
- 2270 Colonial Blvd, Fort Myers, FL 33907 (listed in Arkansas, Colorado, Massachusetts, Rhode Island, Texas)
- 1419 SE 8th Ter, Cape Coral, FL 33990 (listed in Florida)
- 2234 Colonial Blvd, Fort Myers, FL 33907 (listed in Indiana)
- 1419 SE 8th Ter Ste 200, Cape Coral, FL 33990 (listed in Kentucky, Oregon, Washington, West Virginia)
- 601 Abbot Rd, East Lansing, MI 48823 (listed in Michigan)
- 80 State St, Albany, NY 12207 (listed in New York)

## Registered states

- [Alabama](https://index.baselayer.com/al/68c0c5442aaa61ce): Foreign registration, as GenesisCare USA Services, LLC
- [Arizona](https://index.baselayer.com/az/9beef7b6580c13e2): Foreign registration, as 21st Century Oncology Services, Inc.
- [Arizona](https://index.baselayer.com/az/502af6931dd40a92): Foreign registration
- [Arkansas](https://index.baselayer.com/ar/ae80d6758f3b8889): Foreign registration, as Genesiscare USA Services, LLC
- [Colorado](https://index.baselayer.com/co/7d38b49c687dc6d1): Foreign registration, as GenesisCare USA Services, LLC
- [Delaware](https://index.baselayer.com/de/ec8e44d0988f6d19)
- [Florida](https://index.baselayer.com/fl/cb547c9b088298e2): Foreign registration, as Genesiscare USA Services, LLC
- [Indiana](https://index.baselayer.com/in/48e0ffb667f7201b): Foreign registration, as Genesiscare USA Services, LLC
- [Kentucky](https://index.baselayer.com/ky/4d400e041d881f70): Foreign registration, as 21st Century Oncology Services, Inc.
- [Maryland](https://index.baselayer.com/md/7ceb283fb4ce68bd): Foreign registration, as Genesiscare USA Services, LLC
- [Massachusetts](https://index.baselayer.com/ma/4ac48f227d222169): Foreign registration, as Genesiscare USA Services, LLC
- [Michigan](https://index.baselayer.com/mi/25c7cc4a91316079): Foreign registration, as Genesiscare USA Services, LLC
- [Missouri](https://index.baselayer.com/mo/2e07d01a36cf61bf): Domestic registration
- [Missouri](https://index.baselayer.com/mo/77060923b48f70a5): Foreign registration
- [Nevada](https://index.baselayer.com/nv/ebd8717e5ceb37e7): Foreign registration, as GenesisCare USA Services, LLC
- [New Jersey](https://index.baselayer.com/nj/a82c1aeb3f908564): Foreign registration
- [New York](https://index.baselayer.com/ny/d96fafcc2edd1472): Foreign registration, as Genesiscare USA Services, LLC
- [Oregon](https://index.baselayer.com/or/317850c8186c1a0e): Foreign registration, as Genesiscare USA Services, LLC
- [Rhode Island](https://index.baselayer.com/ri/1768a2f921749e1d): Foreign registration, as GenesisCare USA Services, LLC
- [South Carolina](https://index.baselayer.com/sc/0301b9b50ea90a53): Foreign registration, as GenesisCare USA Services, LLC
- [Texas](https://index.baselayer.com/tx/830045f54da3556c): Foreign registration, as GenesisCare USA Services LLC
- [Washington](https://index.baselayer.com/wa/518b11c5a4032d24): Foreign registration, as Genesiscare USA Services, LLC
- [West Virginia](https://index.baselayer.com/wv/fabca1082cd0b527): Foreign registration, as Genesiscare USA Services, LLC

Source: public state registration records. Missing values are not a negative finding.

Cite as: Baselayer Business Index (https://index.baselayer.com/business/2e07d01a36cf61bf)