|                                                      |   |  Place      of |   |  Percentage      of Interest or |
|-----------------------------------------------------------|--------|---------------------|--------|--------------------------------------|
|  Name                                                |   |  Organization  |   |  Voting      Securities Owned   |
|                                                      |   |                |   |                                 |
| Tutor      Perini Corporation                             |   | Massachusetts       |   |                                 |
|                                                      |   |                |   |                                 |
| Perini      Building Company, Inc.                        |   | Arizona             |   | 100%                                 |
|                                                      |   |                |   |                                 |
| Tutor-Saliba,      LLC                                    |   | California          |   | 100%                                 |
|                                                      |   |                |   |                                 |
| Tutor-Saliba      Corporation                             |   | California          |   | 100%                                 |
|                                                      |   |                |   |                                 |
| Desert      Plumbing & Heating Co., Inc.              |   | Nevada              |   | 100%                                 |
|                                                      |   |                |   |                                 |
| Powerco      Electric Corp.                               |   | California          |   | 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%                                 |
|                                                      |   |                |   |                                 |
| Keating      Building Company                             |   | Pennsylvania        |   | 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%                                 |