EX-21.1 2 prim-20181231ex211a02b48.htm EX-21.1

prim_Ex21_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
Cardinal Contractors, Inc.		Florida
GML Coatings, LLC		Florida
James Construction Group, LLC		Florida
Juniper Rock Corporation		California
OnQuest, Inc.		California
OnQuest Canada, ULC (formerly Born Heaters Canada)		Alberta
OnQuest Heaters, Inc.		Delaware
PFMG Solar Tustin, LLC		Delaware
Pipe Jacking Trenchless, Inc.		California
Primoris Aevenia, Inc.		Texas
Primoris Design & Construction, Inc.		Delaware
Primoris Distribution Services, Inc.		Texas
Primoris Electric, Inc.		California
Primoris Energy Services Corporation		Texas (1)
Primoris T&D Services, LLC		Delaware
Primoris Willbros Canada ULC		British Columbia
Q3 Contracting, Inc.		Minnesota
Rockford Corporation		Oregon
Rockford Holdings Corporation		Delaware
Rockford Pipelines Canada, Inc.		Alberta
Saxon Construction, Inc.		Texas
Vadnais Trenchless Services, Inc.		California
Willbros Group, Inc.		Delaware

(1) Under a trademark license agreement, Primoris Energy Services Corporation used the tradename “Sprint Pipeline Services” during the period ending March 2015.

With the exception of Primoris Energy Services Corporation, Primoris Aevenia, Inc., and OnQuest Canada, ULC, 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
ARB Inc. & B&M Engineering Co — A JV		California		50	%
Alvah, Inc. (a)		California		49	%
Carlsbad Power Constructors		California		50	%
St.-Bernard Levee Partners		Delaware		30	%
WesPac Energy, LLC (a)		Nevada		50	%
WesPac Midstream, LLC (a)		Delaware		7.5	%

(a) This equity investment was sold during the twelve months ended December 31, 2014.

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