**Exhibit 21**

 

|   | ***Perini Corporation*** |
|--------|--------------------------|

| * * | ***Subsidiaries of the Registrant*** |
|----------|--------------------------------------|

 

 

|  

 

 

 

**Name**             |   |  

 

 

**Place of**

**Organization** |   | **Percentage of Interest or Voting Securities Owned** |
|------------------------------------------------------|--------|--------------------------------------------------------|--------|-------------------------------------------------------|
|                                                 |   |                                                   |   |                                                  |
| Perini Corporation                                   |   | Massachusetts                                          |   |                                                  |
|                                                 |   |                                                   |   |                                                  |
| Perini Building Company, Inc.                        |   | Arizona                                                |   | 100%                                                  |
|                                                 |   |                                                   |   |                                                  |
| Tutor-Saliba Corporation                             |   | California                                             |   | 100%                                                  |
|                                                 |   |                                                   |   |                                                  |
| Desert Plumbing & Heating Co., Inc.              |   | Nevada                                                 |   | 100%                                                  |
|                                                 |   |                                                   |   |                                                  |
| Powerco Electric Corp.                               |   | Nevada                                                 |   | 100%                                                  |
|                                                 |   |                                                   |   |                                                  |
| Black Construction                                   |   | Guam                                                   |   | 100%                                                  |
|                                                 |   |                                                   |   |                                                  |
| Perini Management Services, Inc.                     |   | Massachusetts                                          |   | 100%                                                  |
|                                                 |   |                                                   |   |                                                  |
| James A. Cummings, Inc.                              |   | Florida                                                |   | 100%                                                  |
|                                                 |   |                                                   |   |                                                  |
| Cherry Hill Construction, Inc.                       |   | Maryland                                               |   | 100%                                                  |
|                                                 |   |                                                   |   |                                                  |
| Rudolph and Sletten, Inc.                            |   | California                                             |   | 100%                                                  |
|                                                 |   |                                                   |   |                                                  |
| Perini Environmental Services, Inc.                  |   | Delaware                                               |   | 100%                                                  |
|                                                 |   |                                                   |   |                                                  |
| International Construction Management Services, Inc. |   | Delaware                                               |   | 100%                                                  |
|                                                 |   |                                                   |   |                                                  |
| Percon Constructors, Inc.                            |   | Delaware                                               |   | 100%                                                  |
|                                                 |   |                                                   |   |                                                  |
| Bow Leasing Company, Inc.                            |   | New Hampshire                                          |   | 100%                                                  |
|                                                 |   |                                                   |   |                                                  |
| Perini Land & Development Company, Inc.          |   | Massachusetts                                          |   | 100%                                                  |
|                                                 |   |                                                   |   |                                                  |
| Paramount Development Associates, Inc.               |   | Massachusetts                                          |   | 100%                                                  |
|                                                 |   |                                                   |   |                                                  |
| Mt. Wayte Realty, LLC                                |   | Delaware                                               |   | 100%                                                  |