# 21st Century Environmental Management, LLC of Rhode Island

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

- Legal business name: 21st Century Environmental Management, LLC of Rhode Island
- Alternative and DBA names: 21st Century Environmental Management, Inc. of Rhode Island
- Entity type: LLC
- Original incorporation date: December 17, 1993
- Time in business: 32 years and 9 months
- Jurisdiction count: 7

## All known addresses

- 933 1st Ave Ste 200, King of Prussia, PA 19406 (listed in Rhode Island, New Hampshire)
- 334 S Warminster Rd, Hatboro, PA 19040 (listed in Connecticut)
- 45 Memorial Cir, Augusta, ME 04330 (listed in Maine)
- 28161 N Keith Dr, Lake Forest, IL 60045 (listed in New York)
- 5151 San Felipe St Ste 1600, Houston, TX 77056 (listed in Vermont)

## Registered states

- [Connecticut](https://index.baselayer.com/ct/55e85c0fcfa6929c): Foreign registration
- [Maine](https://index.baselayer.com/me/a13347fbce7f9207): Foreign registration
- [Massachusetts](https://index.baselayer.com/ma/1a482e3751d7c05e): Foreign registration
- [New Hampshire](https://index.baselayer.com/nh/12ccf8e1872986fb): Foreign registration
- [New York](https://index.baselayer.com/ny/58e153d9f7e86421): Foreign registration
- [Rhode Island](https://index.baselayer.com/ri/9d2624f2c4cacdd6): Domestic registration
- [Vermont](https://index.baselayer.com/vt/89a52fdd5b86a3d8): Foreign registration

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

Cite as: Baselayer Business Index (https://index.baselayer.com/business/9d2624f2c4cacdd6)