MATRIX SERVICE CO - FORM 10-K - EX-21 - SUBSIDIARIES

file	filename
10-K - FORM 10-K - MATRIX SERVICE CO	d10k.htm
EX-32.2 - CERTIFICATION PURSUANT TO SECTION 906 - CFO - MATRIX SERVICE CO	dex322.htm
EX-10.8 - FORM OF RESTRICTED STOCK UNIT AWARD AGREEMENT FOR NON-EMPLOYEE DIRECTORS - MATRIX SERVICE CO	dex108.htm
EX-32.1 - CERTIFICATION PURSUANT TO SECTION 906 - CEO - MATRIX SERVICE CO	dex321.htm
EX-31.2 - CERTIFICATION PURSUANT TO SECTION 302 - CFO - MATRIX SERVICE CO	dex312.htm
EX-31.1 - CERTIFICATION PURSUANT TO SECTION 302 - CEO - MATRIX SERVICE CO	dex311.htm
EX-10.9 - FORM OF RESTRICTED STOCK UNIT AWARD AGREEMENT FOR EMPLOYEES - MATRIX SERVICE CO	dex109.htm
EX-10.10 - FORM OF RESTRICTED STOCK UNIT AWARD AGREEMENT FOR EXECUTIVE MANAGEMENT - MATRIX SERVICE CO	dex1010.htm
EX-10.22 - THIRD AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT - MATRIX SERVICE CO	dex1022.htm
EX-23 - CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM - DELOITTE & TOUCHE LLP - MATRIX SERVICE CO	dex23.htm

EXHIBIT 21

Matrix Service Company

Subsidiaries

Matrix Service Inc., an Oklahoma corporation

Matrix Service Industrial Contractors, Inc., an Oklahoma corporation

Matrix Service Inc. Canada, an Ontario, Canada corporation

Matrix Service Industrial Contractors Canada, Inc., a Delaware corporation

Matrix Service Industrial Contractors ULC, a Nova Scotia, Canada corporation

Matrix Service Specialized Transport, Inc., a Pennsylvania corporation

I & S, Inc., a Pennsylvania corporation

Matrix Service ULC, an Alberta, Canada corporation

S.M. Electric Company, Inc., a New Jersey corporation

Matrix Service International, LLC, a Delaware entity

MATRIX SERVICE CO - FORM 10-K - EX-21 - SUBSIDIARIES - September 28, 2010