| Firm | Trade | Roles | Most Recent |
|---|---|---|---|
| LEONID SIMKIN | Electrical | 1 | 03/21/2026 |
| Source | Work Type | Status | Applicant | Issued |
|---|---|---|---|---|
| BIS | PL | ISSUED | GW MECHANICAL CORP | 02/23/2009 |
| BIS | OT | ISSUED | YES FRIENDS CORP. | 06/29/2007 |
| BIS | EQ | ISSUED | YES FRIENDS CORP. | 06/29/2007 |
| BIS | CC | ISSUED | MEL'S CONSTRUCTION | 09/20/1996 |