| Company Name | Charter Number | Address | Filling Date |
|---|---|---|---|
| PERLAND ENVIRONMENTAL TECHNOLOGIES, INC. | 19940018 R | BURLINGTON, MA 01803 | 05/01/1994 |
| PERLAND ENVIRONMENTAL TECHNOLOGIES, INC. | 19930053 R | BURLINGTON, MA 01803 | 01/02/1993 |
| PERLAND ENVIRONMENTAL TECHNOLOGIES, INC. | 19890006 R | BURLINGTON, MA 01803 | 21/07/1988 |