<![CDATA[Joinder Agreement & Amendment to Underwriting, Indemnity & Security Agrmt]]>



 Exhibit 10.30 
 JOINDER AND THIRD AMENDMENT TO UNDERWRITING, CONTINUING 
 INDEMNITY AND
SECURITY AGREEMENT 
 THIS JOINDER AND THIRD AMENDMENT TO UNDERWRITING, CONTINUING INDEMNITY AND SECURITY AGREEMENT (this
“Third Amendment”) made as of the 19th day of December, 2008, by and among QUANTA SERVICES, INC., a Delaware corporation, and certain of its Affiliates and Subsidiaries identified on Exhibit A to this Third Amendment (individually and
collectively, in their capacity as a named principal under any Bond, “Principal” and individually and collectively “Indemnitors”); FEDERAL INSURANCE COMPANY, an Indiana corporation, AMERICAN HOME ASSURANCE COMPANY, NATIONAL UNION
FIRE INSURANCE COMPANY OF PITTSBURGH, PA., and THE INSURANCE COMPANY OF THE STATE OF PENNSYLVANIA (individually and collectively “Surety”). 
 W I T N E S S E T H: 
 WHEREAS, Surety and certain Indemnitors entered into that
certain Underwriting, Continuing Indemnity and Security Agreement dated March 14, 2005 (the “Original Agreement”), as amended and modified by that certain Joinder Agreement and Amendment to Underwriting, Continuing Indemnity and
Security Agreement dated November 28, 2006 (the “First Amendment”) and that certain Second Amendment to Underwriting, Continuing Indemnity and Security Agreement dated January 9, 2008 (the “Second Amendment”); and

 WHEREAS, the terms of the Original Agreement, as amended and modified by the First Amendment and the Second Amendment (as so
amended and modified, the “Agreement”), are further amended and modified as set forth in this Third Amendment; and 

WHEREAS, the parties desire to add certain additional Domestic Subsidiaries of Quanta Services, Inc. as Principals and Indemnitors under
the Agreement, as amended by this Third Amendment; 
 NOW, THEREFORE, in consideration of the foregoing premises, and other good
and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows: 

1. Definitions. All capitalized terms used in this Third Amendment (including the recitals hereto) will have the respective
meanings assigned thereto in the Agreement, unless otherwise specifically defined in this Third Amendment. 
 2.
Amendments. 
 (a) The definition of “Bonded Contract” in the Agreement is hereby modified to delete
“and/or Sunesys, LLC” immediately after “Island Mechanical, Hawaii” and the proviso to Section 1(b) of the Second Amendment is hereby deleted in its entirety. 

  
 1 








 (b) The definition of “Bonds” in the Agreement is hereby modified to delete
“and/or Sunesys, LLC” immediately after “Island Mechanical, Hawaii” and the proviso to Section 1(c) of the Second Amendment is hereby deleted in its entirety. 

(c) Clauses (c) and (f) of the definition of “Event of Default” in the Agreement are hereby modified to delete
“and/or Sunesys, LLC” immediately after “Island Mechanical, Hawaii” wherever such term appears in each such clause. 
 (d) The definition of “Retainage” in the Agreement is hereby modified to delete “and/or Sunesys, LLC” immediately after “Island Mechanical, Hawaii” wherever such term appears
in such definition and the proviso to Section 1(e) of the Second Amendment is hereby deleted in its entirety. 
 (e) The
definition of “Surety Loss” in the Agreement is hereby modified to delete “and/or Sunesys, LLC” immediately after “Island Mechanical, Hawaii” wherever such term appears in such definition. 

(f) The definition of “Work” in the Agreement is hereby modified to delete (i) “and/or Sunesys, LLC” immediately
after “Island Mechanical, Hawaii” wherever such term appears in such definition and (ii) “and/or Sunesys, LLC’s” immediately after “Island Mechanical, Hawaii’s” where such term appears in such definition.

 3. Exhibit A. Exhibit A to the Agreement is hereby deleted in its entirety and replaced with Exhibit A
to this Third Amendment. 
 4. Warranties and Covenants of Indemnitors. Each of Pauley Construction Inc., an Arizona
corporation, Sunesys, LLC, a Delaware limited liability company, and Winco, Inc., an Oregon corporation (each being a “New Indemnitor”) represents and warrants to Surety that all of the representations and warranties made by the
Indemnitors (as defined in the Agreement) in the Original Agreement (whether made as an Indemnitor (as defined in the Agreement) or as a Principal (as defined in the Agreement)) are true and correct as applicable to such New Indemnitor in all
material respects, as of the date hereof (except to the extent such representations and warranties specifically relate to an earlier date). Each New Indemnitor hereby acknowledges, agrees, and confirms that, by its execution of this Third Amendment,
such New Indemnitor will be deemed to be a party to the Agreement, as amended by this Third Amendment, and an “Indemnitor” (as defined in the Agreement) and “Principal” (as defined in the Agreement) for all purposes of the
Agreement, as amended by this Third Amendment, and shall have all the obligations of an Indemnitor (as defined in the Agreement) and Principal (as defined in the Agreement) thereunder as if it had executed the Agreement. Each New Indemnitor hereby
ratifies, as of the date hereof, and agrees to be bound by, all of the terms, provisions, and conditions contained in the Agreement, as amended by this Third Amendment, applicable to such New Indemnitor (whether as an Indemnitor (as defined in the
Agreement) or Principal (as defined in the Agreement)). Without limiting the generality of the foregoing terms of this Section 4, each New Indemnitor hereby grants to the Surety a security interest in any and all right, title and interest of
such New Indemnitor in and to the Collateral of such New Indemnitor to secure the prompt payment and performance in full when due of any Surety Loss, 

  
 2 








 
and the payment and performance of all other obligations and undertakings now or hereafter owing to Surety with respect to the Bonds and/or under the Surety Credit Documents, as same may now or
hereafter be modified, replaced, extended or renewed. 
 5. Due Diligence Items Required to be Delivered by New
Indemnitors. Each New Indemnitor will deliver to Surety the following, in form and substance reasonably satisfactory to Surety and its counsel: 
 (a) Favorable opinions of both outside and in-house counsel to Principal and Indemnitors, with respect to the New Indemnitors, substantially in the form attached to the Original Agreement as Exhibit
C thereto, with such modifications thereto as are requested by such counsel and acceptable to Surety and its counsel in their reasonable discretion; 
 (b) an officer’s certificate of such New Indemnitor certifying appropriate resolutions authorizing the execution, delivery, and performance of this Third Amendment and performance of the Agreement,
as amended by this Third Amendment, certifying that such resolutions have been approved in accordance with such New Indemnitor’s governing documents together with copies of such governing documents, and certifying incumbencies and true
signatures of the officers so authorized; and 
 (c) evidence of the good standing of such New Indemnitor in the jurisdiction in
which such New Indemnitor is formed. 
 6. Power of Attorney. Each New Indemnitor hereby irrevocably constitutes and
appoints Quanta Services, Inc. (and all officers, employees, or agents designated by Quanta Services, Inc.), with full power of substitution, as such New Indemnitor’s true and lawful attorney-in-fact with full irrevocable power and authority in
the place and stead of such New Indemnitor and in the name of such New Indemnitor or in its own name, from time to time in Quanta Services, Inc.’s discretion, to take any and all appropriate action and to execute and deliver any and all
documents and instruments which may be necessary or desirable to accomplish the purpose of this Third Amendment or the Agreement and to amend, modify or supplement the Agreement or other Surety Credit Documents in any manner. Each New Indemnitor
hereby ratifies and agrees to be bound by, to the fullest extent permitted by law, all that Quanta Services, Inc. will lawfully do or cause to be done by virtue hereof. 
 7. Miscellaneous. 
 (a) Upon the effectiveness of this Third Amendment,
each reference in the Agreement to “this Agreement,” “hereunder” or words of like import shall mean and be a reference to the Agreement, as affected and amended by this Third Amendment (except to the extent such reference
specifically relates to an earlier date). The foregoing is not intended to otherwise affect the definition of “Agreement” or “this Agreement.” 
 (b) This Third Amendment shall be governed by and construed in accordance with the internal laws of the State of New York. 

  
 3 








 (c) Section headings in this Third Amendment are included herein for convenience of
reference only and shall not constitute a part of this Third Amendment for any other purpose. 
 8. Binding Effect. By
executing this Third Amendment, each New Indemnitor will be deemed to be an Indemnitor (as defined in the Agreement) under the terms of the Agreement, as amended hereby, as though such New Indemnitor were an original signatory thereto and such New
Indemnitor hereby confirms its grant of a security interest in the Collateral to Surety as provided in Section 5 of the Agreement. 
 9. Continuing Effect. Except as specifically set forth in this Third Amendment, the Agreement remains in full force and effect in accordance with its terms. 

10. Counterparts. This Third Amendment may be executed by the parties independently in any number of counterparts, all of which
together will constitute but one and the same instrument which is valid and effective as if all parties had executed the same counterpart. This Third Amendment may be validly executed and delivered by facsimile or other electronic transmission.
Notwithstanding the foregoing, the parties are required to deliver original signature pages to each other. 
 IN WITNESS
WHEREOF, each of the parties has caused this Third Amendment to be executed by its duly authorized officer as of the day and year first above written. 

 

			
	SURETY:
	
	FEDERAL INSURANCE COMPANY
		
	By:	 	 /s/ James E. Altman

	Name:	 	James E. Altman
	Title:	 	Vice President



  
 4 








  

			
	 AMERICAN HOME ASSURANCE COMPANY

		
	 By:
	 	 /s/ Kevin M. Maroney

	 Name:
	 	Kevin M. Maroney
	 Title:
	 	Assistant Vice President
	
	 NATIONAL UNION FIRE INSURANCE COMPANY OF PITTSBURGH, PA.

		
	 By:
	 	 /s/ Kevin M. Maroney

	 Name:
	 	Kevin M. Maroney
	 Title:
	 	Assistant Vice President
	
	 THE INSURANCE COMPANY OF THE STATE OF PENNSYLVANIA

		
	 By:
	 	 /s/ Kevin M. Maroney

	 Name:
	 	Kevin M. Maroney
	 Title:
	 	Assistant Vice President
	
	PRINCIPAL/INDEMNITORS:
	
	 QUANTA SERVICES, INC.

		
	 By:
	 	 /s/ Darren B. Miller

	 Name:
	 	Darren B. Miller
	 Title:
	 	Vice President-Information Technology and Administration



  
 5 








  

			
		 	 ADVANCED TECHNOLOGIES AND INSTALLATION CORPORATION

		 	 ALLTECK LINE CONTRACTORS (USA), INC.

		 	AUSTIN TRENCHER, INC.
		 	 BRADFORD BROTHERS, INCORPORATED

		 	CCLC, INC.
		 	CMI SERVICES, INC.
		 	CONTI COMMUNICATIONS, INC.
		 	CROCE ELECTRIC COMPANY, INC.
		 	 DILLARD SMITH CONSTRUCTION COMPANY

		 	FIBER TECHNOLOGIES, INC.
		 	FIVE POINTS CONSTRUCTION CO.
		 	 GLOBAL ENERCOM MANAGEMENT, INC.

		 	GOLDEN STATE UTILITY CO.
		 	 H.L. CHAPMAN PIPELINE CONSTRUCTION, INC.

		 	INTERMOUNTAIN ELECTRIC, INC.
		 	IRBY CONSTRUCTION COMPANY
		 	MANUEL BROS., INC.
		 	MEARS GROUP, INC.
		 	MEJIA PERSONNEL SERVICES, INC.
		 	 METRO UNDERGROUND SERVICES, INC. OF

		 	ILLINOIS
		 	NETWORK ELECTRIC COMPANY
		 	NORTH SKY COMMUNICATIONS, INC.
		 	PAR ELECTRICAL CONTRACTORS, INC.
		 	 PARKSIDE SITE & UTILITY COMPANY CORPORATION

		 	 PARKSIDE UTILITY CONSTRUCTION CORP.

		 	POTELCO, INC.
		 	 PROFESSIONAL TELECONCEPTS, INC. (IL)

		 	 PROFESSIONAL TELECONCEPTS, INC. (NY)

		 	QUANTA DELAWARE, INC.
		 	 QUANTA GOVERNMENT SERVICES, INC.

		 	 QUANTA GOVERNMENT SOLUTIONS, INC.

		 	 QUANTA UTILITY INSTALLATION COMPANY, INC.

		
	 By:
	 	 /s/ Tana Pool

	 Name:
	 	Tana L. Pool
	 Title:
	 	Vice President



  
 6 








  

			
	 QUANTA UTILITY SERVICES–GULF STATES, INC.

	R.A. WAFFENSMITH & CO., INC.
	 SOUTHWEST TRENCHING COMPANY, INC.

	SPALJ CONSTRUCTION COMPANY
	SUMTER UTILITIES, INC.
	THE RYAN COMPANY, INC.
	 TOM ALLEN CONSTRUCTION COMPANY

	 TRAWICK CONSTRUCTION COMPANY, INC.

	TTM, INC.
	 UNDERGROUND CONSTRUCTION CO., INC.

	 UTILITY LINE MANAGEMENT SERVICES, INC.

	VCI TELCOM, INC.
	W.C. COMMUNICATIONS, INC.
		
	 By:
	 	 /s/ Tana Pool

	 Name:
	 	Tana L. Pool
	 Title:
	 	Vice President


  

					
	 MEARS/CPG LLC

	 MEARS ENGINEERING/ LLC

	 MEARS/HDD, LLC

	 MEARS SERVICES LLC

		
	 By:
	 	Mears Group, Inc., the Sole Member of each of the foregoing limited liability companies
			
		 	By:	 	 /s/ Tana Pool

		 	Name:	 	Tana L. Pool
		 	Title:	 	Vice President
	
	 OKAY CONSTRUCTION COMPANY, LLC

		
	 By:
	 	Spalj Construction Company, its Sole Member
			
		 	By:	 	 /s/ Tana Pool

		 	Name:	 	Tana L. Pool
		 	Title:	 	Vice President



  
 7 








  

					
	QUANTA UTILITY SERVICES, LLC
		
	By:	 	  Mejia Personnel Services, Inc., its Sole Member
			
		 	  By:	 	 /s/ Tana Pool

		 	  Name:	 	Tana L. Pool
		 	  Title:	 	Vice President
	
	TJADER, L.L.C.
		
	By:	 	  Spalj Construction Company, its Sole Member
			
		 	  By:	 	 /s/ Tana Pool

		 	  Name:	 	Tana L. Pool
		 	  Title:	 	Vice President
	
	DIGCO UTILITY CONSTRUCTION, L.P.
	LINDSEY ELECTRIC, L.P.
	NORTH HOUSTON POLE LINE, L.P.
		
	By:	 	  Mejia Personnel Services, Inc., the General   Partner of each of the foregoing limited   partnerships
			
		 	  By:	 	 /s/ Tana Pool

		 	  Name:	 	Tana L. Pool
		 	  Title:	 	Vice President
	
	 QUANTA SERVICES MANAGEMENT PARTNERSHIP, L.P.

		
	By:	 	  QSI, Inc., its General Partner
			
		 	  By:	 	 /s/ Tana Pool

		 	  Name:	 	Tana L. Pool
		 	  Title:	 	Vice President



  
 8 








  

					
	 TRANS TECH ELECTRIC, L.P.

		
	 By:
	 	  TTGP, Inc., its General Partner
			
		 	  By:	 	 /s/ Tana Pool

		 	  Name:	 	Tana L. Pool
		 	  Title:	 	Vice President
	
	BLAIR PARK SERVICES, LLC
	CAN-FER CONSTRUCTION COMPANY
	DACON CALIFORNIA, INC.
	DACON, LLC
	DASHIELL CALIFORNIA, INC.
	DASHIELL, LLC
	 INFRASOURCE POWER CALIFORNIA, INC.

	INFRASOURCE POWER, LLC
	 INFRASOURCE TELECOMMUNICATION SERVICES, LLC

	 INFRASOURCE TRANSMISSION SERVICES COMPANY

	 INFRASOURCE UNDERGROUND CONSTRUCTION CALIFORNIA, INC.

	 INFRASOURCE UNDERGROUND CONSTRUCTION, INC.

	 INFRASOURCE UNDERGROUND CONSTRUCTION, LLC

	 INFRASOURCE UNDERGROUND CONSTRUCTION SERVICES, LLC

	 INFRASOURCE UNDERGROUND INSTALLATION, LLC

	 INFRASOURCE UNDERGROUND SERVICES CANADA, INC.

	M.J. ELECTRIC CALIFORNIA, INC.
	M.J. ELECTRIC, LLC
		
	 By:
	 	 /s/ Tana Pool

	 Name:
	 	Tana L. Pool
	 Title:
	 	Vice President



  
 9 








  

			
	 SPECTRUM CONSTRUCTION CONTRACTING, L.L.C.

		
	 By:
	 	 Conti Communications, Inc.,

its Sole Member

		
	 By:
	 	 /s/ Tana Pool

	 Name:
	 	Tana L. Pool
	 Title:
	 	Vice President
	
	NEW INDEMNITORS:
	
	 PAULEY CONSTRUCTION INC.

SUNESYS, LLC
 WINCO, INC.

		
	 By:
	 	 /s/ Tana Pool

	 Name:
	 	Tana L. Pool
	 Title:
	 	Vice President



  
 10 









 LIST OF PRINCIPAL/INDEMNITORS 

 

									
	 PRINCIPAL
	  	
JURISDICTION
OF
FORMATION
	  	 LOCATION OF CHIEF

EXECUTIVE OFFICE AND

PRINCIPAL PLACE OF

BUSINESS
	  	TAX ID
NO.	  	 PRIOR NAMES OR

TRADE NAMES

	Quanta Services, Inc.	  	Delaware	  	 1360 Post Oak Blvd., Suite 2100

Houston, TX 77056
	  	74-2851603	  	None
					
	Advanced Technologies and Installation Corporation	  	Washington	  	 655 Glennville
 Richardson, TX
75081
	  	91-1528002	  	 Telecom Network
 Specialists,
Inc.
  
 JT Communications, Inc.

					
	Allteck Line Contractors (USA), Inc.	  	Washington	  	 4940 Still Creek Avenue

Burnaby, British Columbia
 Canada, V5C
4E4
	  	98-0198185	  	None
					
	Austin Trencher, Inc.	  	Delaware	  	 9250 FM 2243
 Leander, TX
78641
	  	76-0598342	  	None
					
	Blair Park Services, LLC	  	Delaware	  	 100 West Sixth Street Suite 300

Media, PA 19063
	  	20-5566110	  	 InfraSource Wireless
 (DE, MA,
NJ, NY, PA, RI, VA, WV, DC)
  
 Blair Park Services, Inc.

					
	Bradford Brothers, Incorporated	  	North Carolina	  	 11712 Statesville Road

Huntersville, NC 28078
	  	56-0861169	  	Lake Norman Pipeline, LLC
					
	CAN-FER Construction Company	  	Texas	  	 11031 Grissom Lane
 Dallas, TX
75229
	  	75-2888488	  	None
					
	CCLC, Inc.	  	Delaware	  	 5 Johnson Drive, Suite 4

Raritan, NJ 08869
	  	74-2947665	  	None
					
	CMI Services, Inc.	  	Florida	  	 1555 South Blvd.
 Chipley, FL
32428
	  	59-3371172	  	Communication Manpower, Inc.
					
	Conti Communications, Inc.	  	Delaware	  	 5 Johnson Drive, Suite 4

Raritan, NJ 08869
	  	76-0605511	  	Delaware Conti Communications, Inc.
					
	Croce Electric Company, Inc.	  	Delaware	  	 2 Betty Street
 Everett, MA
02149
	  	76-0605518	  	None
					
	Dacon California, Inc.	  	Delaware	  	 100 West Sixth Street
 Suite
300
 Media, PA 19063
	  	20-5770998	  	None


  
 EXHIBIT A

 11 









									
	 PRINCIPAL
	  	
JURISDICTION
OF
FORMATION
	  	 LOCATION OF CHIEF

EXECUTIVE OFFICE AND

PRINCIPAL PLACE OF

BUSINESS
	  	TAX ID
NO.	  	 PRIOR NAMES OR

TRADE NAMES

	Dacon, LLC	  	Delaware	  	 100 West Sixth Street
 Suite
300
 Media, PA 19063
	  	20-3699950	  	 Dacon Corporation
  

Dacon Ltd. Limited
 Partnership (MS)

 
 Dacon, Limited
 Partnership (MO)
  
 Dacon, Ltd.
Limited
 Partnership (NM)
  

Dacon Ltd.
  
 Dacon GP LLC
  
 InfraSource
Dacon, LLC

					
	Dashiell California, Inc.	  	Delaware	  	 100 West Sixth Street
 Suite
300
 Media, PA 19063
	  	20-5770664	  	None
					
	Dashiell, LLC	  	Delaware	  	 100 West Sixth Street
 Suite
300
 Media, PA 19063
	  	20-3699713	  	 Dashiell Corporation
  

Dashiell Ltd. Limited Partnership (CT, IL, MI, MN, MS, NC, OK, VT)
  

Dashiell Ltd. Limited Partnership (MA)
  

Dashiell, Ltd. Limited Partnership (SC)
  

Dashiell, Ltd. L.P. (GA)
  
 Dashiell Indiana Ltd. Limited Partnership (IN)
  
 Dashiell Limited
 Partnership
(NC)



  
 EXHIBIT A

 12 









									
	 PRINCIPAL
	  	
JURISDICTION
OF
FORMATION
	  	 LOCATION OF CHIEF

EXECUTIVE OFFICE AND

PRINCIPAL PLACE OF

BUSINESS
	  	TAX ID
NO.	  	 PRIOR NAMES OR

TRADE NAMES

		  		  		  		  	 Dashiell-InfraSource (NY)
  

Dashiell Ohio Ltd. Limited Partnership (OH)
  

Dashiell Ltd. Limited
 Liability (WV)

 
 Dashiell Ltd.

 
 InfraSource Dashiell, LLC

 
 InfraSource Texas
 Holdings LP LLC
  
 InfraSource
Texas
 Holdings GP LLC

					
	Digco Utility Construction, L.P.	  	Delaware	  	 1608 Margaret Street
 Houston,
TX 77093
	  	76-0612176	  	None
					
	Dillard Smith Construction Company	  	Delaware	  	 4001 Industry Dr.
 Chattanooga,
TN 37416
	  	76-0589264	  	 P.D.G. Electric
  

Power Engineering & Testing
  

Haines Construction Company
  
 Dillard Smith
 Construction Company (Delaware)

					
	Fiber Technologies, Inc.	  	Virginia	  	 800 Satellite Blvd.
 Suwanee,
GA 30024
	  	54-1612812	  	 Fiber Technology
  

World Fiber
  
 DeltaComm
  
 Marlboro
Cablevision



  
 EXHIBIT A

 13 









									
	 PRINCIPAL
	  	
JURISDICTION
OF
FORMATION
	  	 LOCATION OF CHIEF

EXECUTIVE OFFICE AND

PRINCIPAL PLACE OF

BUSINESS
	  	TAX ID
NO.	  	 PRIOR NAMES OR

TRADE NAMES

		  		  		  		  	 Constructors
  

Choice Optics
 Communications

 
 Myers Cable, Inc.

 
 Sycamore Shoals Communications, Inc.

 
 Crown Fiber
 Communications, Inc.

					
	Five Points Construction Co.	  	Texas	  	 5145 Industrial Way
 Benicia,
CA 94510
	  	94-2738636	  	None
					
	 Global Enercom
 Management,
Inc.
	  	Delaware	  	 2500 Wilcrest Drive, Suite 100

Houston, TX 77042
	  	76-0598339	  	GEM Engineering Co., Inc.
					
	Golden State Utility Co.	  	Delaware	  	 2001 West Tuolomne Road

Turlock, CA 95380
	  	76-0567490	  	 Sanders Construction

Company
 North Pacific

Construction Co., Inc.
  
 Delaware North Pacific
 Construction Co.

					
	H. L. Chapman Pipeline Construction, Inc.	  	Delaware	  	 9250 FM 2243
 Leander, TX
78641
	  	76-0598341	  	 DB Utilities
  

Sullivan Welding

					
	 InfraSource Power
 California,
Inc.
	  	California	  	 100 West Sixth Street
 Suite
300
 Media, PA 19063
	  	74-3149821	  	None
					
	InfraSource Power, LLC	  	Minnesota	  	 2936 South 166th Street
 New
Berlin, WI 53151
	  	41-1723047	  	 Aconite Corporation
  

InfraSource
 Underground Power,
Inc.

					
	 InfraSource

Telecommunication
 Services, LLC
	  	Delaware	  	 219 Ruth Road
 Harleysville, PA
19438
	  	26-1581998	  	None
					
	 InfraSource

Transmission
 Services Company
	  	Arizona	  	 4143 East Quartz Circle
 Mesa,
AZ 85215
	  	86-0787875	  	 Maslonka &
 Associates,
Inc.
  
 MAI Acquisition, Inc.

 
 Dashiell Holdings
Corporation



  
 EXHIBIT A

 14 









									
	 PRINCIPAL
	  	
JURISDICTION
OF
FORMATION
	  	 LOCATION OF CHIEF

EXECUTIVE OFFICE AND

PRINCIPAL PLACE OF

BUSINESS
	  	TAX ID
NO.	  	 PRIOR NAMES OR

TRADE NAMES

	 InfraSource

Underground
 Construction

California, Inc.
	  	Delaware	  	 100 West Sixth Street
 Suite
300
 Media, PA 19063
	  	20-2410077	  	IUC California, Inc. (CA)
					
	 InfraSource

Underground
 Construction, Inc.
	  	Delaware	  	 2936 South 166th Street
 New
Berlin, WI 53151
	  	51-0324281	  	 Mueller Pipeliners, Inc.
  

IUC Michigan, Inc. (MI)
  
 IUC Texas, Inc. (TX)

					
	 InfraSource

Underground
 Construction, LLC
	  	Delaware	  	 4033 East Morgan
 Ypsilanti, MI
48197
	  	04-3633384	  	 Arby Construction, Inc.
  

Michigan Trenching Services, Inc.
  

Mueller Energy
 Services, Inc.

 
 MES-MTS, LLC

 
 IUC Illinois, LLC (IL)

 
 IUC Missouri, LLC (MO)

 
 IUC Montana, LLC (MT)

 
 IUC Nebraska, LLC (NE)

 
 IUC North Dakota, LLC (ND)

 
 IUC Washington, LLC (WA)

 
 IUC Wisconsin, LLC
(WI)



  
 EXHIBIT A

 15 









									
	 PRINCIPAL
	  	
JURISDICTION
OF
FORMATION
	  	 LOCATION OF CHIEF

EXECUTIVE OFFICE AND

PRINCIPAL PLACE OF

BUSINESS
	  	TAX ID
NO.	  	 PRIOR NAMES OR

TRADE NAMES

		  		  		  		  	S.K.S. Pipeliners, LLC
					
	 InfraSource

Underground
 Construction Services,
LLC
	  	Georgia	  	 2936 South 166th Street
 New
Berlin, WI 53151
	  	58-1696154	  	 Mueller Distribution Contractors, Inc.
  

InfraSource
 Underground

Construction Services, Inc.
  
 IUC South, LLC
  
 Nuflint,
LLC
  
 InfraSource Concrete &

Paving Services, LLC
  
 Flint Paving Company

					
	 InfraSource

Underground
 Installation, LLC
	  	Delaware	  	 2012-A S. Elliott St.
 Aurora,
MO 65605
	  	41-1625874	  	 Gas Distribution
 Contractors,
Inc.

					
	 InfraSource
 Underground
Services
 Canada, Inc.
	  	Delaware	  	 100 West Sixth Street
 Suite
300
 Media, PA 19063
	  	20-3676436	  	None
					
	Intermountain Electric, Inc.	  	Colorado	  	 602 South Lipan Street
 Denver,
CO 80223
	  	84-0906573	  	Colorado IM Electric
					
	Irby Construction Company	  	Mississippi	  	 817 S. State Street
 Jackson,
MS 39201
	  	64-0902002	  	None
					
	Lindsey Electric, L.P.	  	Texas	  	 1608 Margaret Street
 Houston,
TX 77093
	  	02-0557008	  	None
					
	Manuel Bros., Inc.	  	Delaware	  	 908 Taylorville Road,
 Suite
104
 Grass Valley, CA 95949
	  	76-0577087	  	 Renaissance

Construction
  
 Western Directional

					
	Mears/CPG LLC	  	Michigan	  	 4500 N. Mission Road
 Rosebush,
MI 48878
	  	N/A	  	None
					
	Mears Engineering/LLC	  	Michigan	  	 4500 N. Mission Road
 Rosebush,
MI 48878
	  	N/A	  	None
					
	Mears Group, Inc.	  	Delaware	  	 4500 N. Mission Road
 Rosebush,
MI 48878
	  	76-0612167	  	None
					
	Mears/HDD, LLC	  	Michigan	  	 4500 N. Mission Road
 Rosebush,
MI 48878
	  	N/A	  	None


  
 EXHIBIT A

 16 









									
	 PRINCIPAL
	  	
JURISDICTION
OF
FORMATION
	  	 LOCATION OF CHIEF

EXECUTIVE OFFICE AND

PRINCIPAL PLACE OF

BUSINESS
	  	TAX ID
NO.	  	 PRIOR NAMES OR

TRADE NAMES

					
	Mears Services LLC	  	Michigan	  	 4500 N. Mission Road
 Rosebush,
MI 48878
	  	N/A	  	None
					
	 Mejia Personnel
 Services,
Inc.
	  	Texas	  	 431 West Bedford-Euless Road, Suite F
 Hurst, TX 76053
	  	75-2575734	  	None
					
	 Metro Underground
 Services,
Inc. of Illinois
	  	Illinois	  	 901 Ridgeway Avenue
 Aurora, IL
60506
	  	36-4125701	  	 Metro Underground
 Services,
Inc.

					
	M.J. Electric California, Inc.	  	Delaware	  	 100 West Sixth Street
 Suite
300
 Media, PA 19063
	  	20-5770522	  	None
					
	M.J. Electric, LLC	  	Delaware	  	 100 West Sixth Street
 Suite
300
 Media, PA 19063
	  	20-5565796	  	 InfraSource Wireless
  

E.I.S. Electric, Inc. (AZ, WA)
  

E.I.S. Electric, Inc. (CT)
  
 InfraSource Electric, Inc. (NE)
  

M.J. Electric, Inc.
 InfraSource M.J.

Electric, LLC

					
	Network Electric Company	  	Delaware	  	 5425 Louis Lane
 Reno, NV
89511
	  	76-0598345	  	DE Network Electric Company
					
	North Houston Pole Line, L.P.	  	Texas	  	 1608 Margaret Street
 Houston,
TX 77093
	  	74-1675857	  	 North Houston Pole Line Corp.
  

Lindsey Electric

					
	North Sky Communications, Inc.	  	Delaware	  	 11818 SE Mill
 Plain Blvd.,
Suite 302
 Vancouver, Washington 98684
	  	76-0605490	  	None
					
	Okay Construction Company, LLC	  	Delaware	  	 208 Rum River Drive
 Princeton,
MN 55371
	  	76-0612169	  	None
					
	PAR Electrical Contractors, Inc.	  	Missouri	  	4770 North Belleview Avenue	  	44-0591890	  	Riggin & Diggin


  
 EXHIBIT A

 17 









									
	 PRINCIPAL
	  	
JURISDICTION
OF
FORMATION
	  	 LOCATION OF CHIEF

EXECUTIVE OFFICE AND

PRINCIPAL PLACE OF

BUSINESS
	  	TAX ID
NO.	  	 PRIOR NAMES OR

TRADE NAMES

		  		  	 Suite 300
 Kansas City, MO
64116
	  		  	 Harker & Harker
  

Union Power
 Construction Company

 
 Seaward Corporation

 
 Mustang Line
 Contractors, Inc.
  
 Lineco
Leasing, LLC
  
 Par Infrared Consultants

					
	 Parkside Site & Utility

Company Corporation
	  	Delaware	  	 123 King Phillip Street

Johnston, RI 02919
	  	76-0612181	  	None
					
	 Parkside Utility
 Construction
Corp.
	  	Delaware	  	 123 King Phillip Street

Johnston, RI 02919
	  	76-0612160	  	None
					
	Pauley Construction Inc.	  	Arizona	  	 2021 W. Melinda Lane
 Phoenix,
AZ 85027
	  	86-0678047	  	None
					
	Potelco, Inc.	  	Washington	  	 14103
8th Street East

Sumner, WA 98390
	  	91-0784248	  	 Kingston Constructors
  

Kuenzi Construction
  
 NorAm Telecommunications
  

Potelco, Incorporated

					
	Professional Teleconcepts, Inc.	  	Illinois	  	 Route 12 South
 Norwich, NY
13815
	  	36-3785874	  	TNS-VA, LLC
					
	Professional Teleconcepts, Inc.	  	New York	  	 Route 12 South
 Norwich, NY
13815
	  	16-1246233	  	Airlan Telecom Services, L.P.
					
	Quanta Delaware, Inc.	  	Delaware	  	 300 Delaware Avenue
 9th Floor
 Wilmington, DE 19801
	  	51-6508285	  	None
					
	Quanta Government Services, Inc.	  	Delaware	  	 1360 Post Oak Blvd.
 Suite
2100
 Houston, Texas 77056
	  	76-0605504	  	None
					
	Quanta Government Solutions, Inc.	  	Delaware	  	 1360 Post Oak Blvd.
 Suite
2100
 Houston, Texas 77056
	  	76-0612166	  	Quanta LI Acquisition, Inc.
					
	Quanta Services	  	Texas	  	1360 Post Oak Blvd.	  	76-0574732	  	None


  
 EXHIBIT A

 18 









									
	 PRINCIPAL
	  	
JURISDICTION
OF
FORMATION
	  	 LOCATION OF CHIEF

EXECUTIVE OFFICE AND

PRINCIPAL PLACE OF

BUSINESS
	  	TAX ID
NO.	  	 PRIOR NAMES OR

TRADE NAMES

					
	Management Partnership, L.P.	  		  	 Suite 2100
 Houston, Texas
77056
	  		  	
					
	 Quanta Utility
 Installation
Company, Inc.
	  	Delaware	  	 1360 Post Oak Blvd.
 Suite
2100
 Houston, Texas 77056
	  	76-0592449	  	None
					
	 Quanta Utility
 Services-Gulf
States, Inc.
	  	Delaware	  	 1360 Post Oak Blvd.
 Suite
2100
 Houston, Texas 77056
	  	76-0612175	  	Southeast Pipeline Construction, Inc.
					
	Quanta Utility Services, LLC	  	Delaware	  	 4770 North Belleview Avenue

Suite 300
 Kansas City, MO 64116
	  	76-0589263	  	 Great Western
 Enterprises,
Inc.
  
 Bore Specialists

 
 TVS Systems, Inc.

 
 Netcom Management
 Group, Inc.
  
 Northern Line
Layers, LLC

					
	R.A. Waffensmith & Co., Inc.	  	Delaware	  	 2042 N. Kelty Road
 Franktown,
CO 80116
	  	76-0589266	  	 Dahl Trenching
  

Southwestern
 Communications,
Inc.

					
	 Southwest Trenching
 Company,
Inc.
	  	Texas	  	 1608 Margaret St.
 Houston,
Texas 77093
	  	76-0106600	  	None
					
	Spalj Construction Company	  	Delaware	  	 22360 County Road 12
 Deerwood,
MN 56444
	  	76-0567489	  	 Span-Con of Deerwood
  

Wilson Roadbores
 Dot 05 Optical
Communications
  
 Smith Contracting

 
 Thorstad Brothers Tiling

 
 Tjader & Highstrom

 
 Dot 05, LLC

 
 Driftwood Electrical Contractors,
Inc



  
 EXHIBIT A

 19 









									
	 PRINCIPAL
	  	
JURISDICTION
OF
FORMATION
	  	 LOCATION OF CHIEF

EXECUTIVE OFFICE AND

PRINCIPAL PLACE OF

BUSINESS
	  	TAX ID
NO.	  	 PRIOR NAMES OR

TRADE NAMES

		  		  		  		  	Maddux Communications
					
	Spectrum Construction Contracting, L.L.C.	  	Colorado	  	 7399 South Tucson Way,
 Suite
C-5
 Englewood, CO 80112
	  	84-1385108	  	None
					
	Sumter Utilities, Inc.	  	Delaware	  	 1151 North Pike West
 Sumter,
SC 29153
	  	76-0577089	  	 Utilco, Inc.
  

Old Lesco Corporation, Inc.

					
	Sunesys, LLC	  	Delaware	  	 1360 Post Oak Blvd., Suite 2100

Houston, TX 77056
	  	20-5565929	  	Sunesys, Inc.
					
	The Ryan Company, Inc.	  	Massachusetts	  	 25 Constitution Drive
 Taunton,
MA 02780
	  	04-2387367	  	 Eastern

Communications
  
 The Ryan Company,
 Inc. of Massachusetts

 
 The Ryan Company of Massachusetts

 
 Ryan Company Inc. (The)

 
 The Ryan Company Incorporated of

Massachusetts

					
	Tjader, L.L.C.	  	Delaware	  	 541 Industrial Drive
 New
Richmond, WI 54017
	  	76-0654709	  	None
					
	Tom Allen Construction Company	  	Delaware	  	 411 Edwardsville Road
 Troy,
Illinois 62294
	  	76-0589277	  	 TA Construction
  

Specialty Drilling
 Technology, Inc.

T&S Construction
 Company

 
 Taylor Built, Inc.

					
	Trans Tech Electric, L.P.	  	Texas	  	 4601 Cleveland Road
 South
Bend, IN 46628
	  	35-1553093	  	 Trans Tech
 Acquisition,
Inc.

					
	Trawick Construction Company, Inc.	  	Florida	  	 1555 South Blvd.
 Chipley, FL
32428
	  	59-0907078	  	None
					
	TTM, Inc.	  	North Carolina	  	 6135 Lakeview Road
 Suite
500
	  	56-1356956	  	 TTM of North
 Carolina,
Inc.



  
 EXHIBIT A

 20 









									
	 PRINCIPAL
	  	
JURISDICTION
OF
FORMATION
	  	 LOCATION OF CHIEF

EXECUTIVE OFFICE AND

PRINCIPAL PLACE OF

BUSINESS
	  	TAX ID
NO.	  	 PRIOR NAMES OR

TRADE NAMES

		  		  	Charlotte, NC 28269	  		  	TTMF, Inc.
					
	 Underground
 Construction Co.,
Inc.
	  	Delaware	  	 5145 Industrial Way
 Benicia,
CA 94510
	  	76-0575471	  	 Underground
 Construction
Co.
  
 Delaware Underground Construction Co.

 
 Metro Underground Construction Co.

 
 Underground Electric Construction Company

 
 Hudson & Poncetta, Inc.

					
	 Utility Line
 Management
Services, Inc.
	  	Delaware	  	 4770 North Belleview Avenue, Suite 300
 Kansas City, Missouri 64116-2188
	  	76-0612162	  	Quanta LIV Acquisition, Inc.
					
	VCI Telcom, Inc.	  	Delaware	  	 1921 West Eleventh Street

Upland, CA 91786
	  	76-0589274	  	None
					
	W. C. Communications, Inc.	  	Delaware	  	 1921 West Eleventh Street

Upland, CA 91786
	  	76-0598348	  	West Coast Communications
					
	Winco, Inc.	  	Oregon	  	 22300 NE Yellow Gate Lane

Aurora, OR 97002
	  	93-1077101	  	Winco Powerline Services


  
 EXHIBIT A

 21