EX-21.1 3 a12-1306_1ex21d1.htm EX-21.1

Exhibit 21.1

Subsidiaries and Equity Investments of the Registrant

Subsidiary |  | Jurisdiction of Organization
ARB, Inc. |  | California
ARB Structures, Inc. |  | California
ARB Chile, Ltda |  | Chile
Alaska Continental Pipeline. Inc. |  | Delaware
All Day Electric Company, Inc. |  | California (*)
Born Heaters Canada, ULC |  | Alberta, Canada
Cardinal Contractors, Inc. |  | Florida
Cardinal Mechanical, Inc. |  | Texas
Cravens Services, Inc. |  | Texas
GML Coatings, LLC |  | Florida
James Construction Group, LLC |  | Florida
Juniper Rock Corporation |  | California
Onquest, Inc. |  | California
Onquest Heaters, Inc. |  | Delaware
Primoris Renewables, LLC |  | California
Rockford Corporation |  | Oregon
Stellaris, LLC |  | Nevada

(*) In December 2010, the Registrant had a 49% equity interest in this entity. The Registrant purchased the remaining 51% of equity in March 2011.

The subsidiaries do not conduct business under any names other than those set forth above.

Equity Investments of the Registrant

Organization |  | Jurisdiction of Organization |  | Registrant’s Equity Interest |
Blythe Power Constructors |  | California |  | 50 | %
Otay Mesa Power Partners |  | California |  | 40 | %
St.-Bernard Levee Partners |  | Delaware |  | 30 | %
WesPac Energy, LLC |  | Nevada |  | 50 | %

The above noted entities do not conduct business under any names other than those set forth above.