RIDER TO ADD PRINCIPAL/INDEMNITOR AND FIFTH AMENDMENT TO RESTATED UNDERWRITING, CONTINUING INDEMNITY, AND SECURITY AGREEMENT

Exhibit 10.1

RIDER TO ADD PRINCIPAL/INDEMNITOR AND FIFTH AMENDMENT TO
RESTATED UNDERWRITING, CONTINUING INDEMNITY, AND SECURITY
AGREEMENT

     THIS RIDER TO ADD PRINCIPAL/INDEMNITOR AND FIFTH AMENDMENT TO RESTATED UNDERWRITING, CONTINUING INDEMNITY, AND SECURITY AGREEMENT (“this Fifth Amendment”) is entered into as of the 29^th day of September, 2008, by and among INTEGRATED ELECTRICAL SERVICES, INC., a Tennessee corporation, and certain of its Affiliates and Subsidiaries identified on Exhibit A, in their capacity as named Principal under any Bond (individually and collectively “Principal”); and INTEGRATED ELECTRICAL SERVICES, INC., a Delaware corporation, and certain of its Affiliates and Subsidiaries identified on Exhibit B (along with Principal, individually and collectively “Indemnitors”); and FEDERAL INSURANCE COMPANY, an Indiana corporation, SAFECO INSURANCE COMPANY OF AMERICA, a Washington corporation, and each of their Affiliates and Subsidiaries and their respective co-sureties and reinsurers, and their respective successors and permitted assigns (individually and collectively “Surety”). All capitalized terms will have the meaning set out in Section 1.

W I T N E S S E T H:

     WHEREAS, Indemnitors and Surety entered into that certain Restated Underwriting, Continuing Indemnity, and Security Agreement dated as of May 12, 2006, as amended by First Amendment to Restated Underwriting, Continuing Indemnity, and Security Agreement dated as of October 31, 2006, Rider to Add Principal/Indemnitor and Second Amendment to Restated Underwriting, Continuing Indemnity, and Security Agreement dated as of December 28, 2006, Third Amendment to Restated Underwriting, Continuing Indemnity, and Security Agreement dated as of May 1, 2007, and Fourth Amendment to Restated Underwriting, Continuing Indemnity, and Security Agreement dated October 1, 2007 (collectively “the Agreement”), the terms of which are incorporated herein by this reference; and

     WHEREAS, the parties desire to enter into this Fifth Amendment for the purpose of amending and modifying the Agreement, as set out in this Fifth Amendment.

     NOW, THEREFORE, in consideration of the foregoing premises and other mutual considerations, the undersigned agree as follows:

     1. Definitions; Exhibits A and B. Unless otherwise specifically defined in this Fifth Amendment, all capitalized terms will have the meaning set out in the Agreement.

     The definition of “Indemnity Agreement” is modified to include the following:

General Agreement of Indemnity for Contractors to be executed in October of 2008, by Indemnitors in favor of Surety.

     The definition of Surety is hereby deleted in its entirety and replaced with the following:

“Surety” means Federal Insurance Company, an Indiana corporation, and Safeco Insurance of America, a Washington corporation, their Affiliates and Subsidiaries and any other companies writing bonds for which this Agreement is consideration (and other companies from whom Surety procures bonds for Principal) and their co-sureties, and reinsurers and their successors and assigns.

     The following sentence is added to the end of the definition of “Surety Loss”: Notwithstanding the foregoing, Safeco Insurance Company of America will be responsible for legal fees incurred with its counsel to add it to the Surety Credit Documents as a Surety.

     Exhibits A and B to the Agreement are hereby deleted in their entirety and replaced with Exhibits A and B to this Fifth Amendment.

     2. Due Diligence Items Required to be Delivered by Indemnitors. Indemnitors will deliver to Surety each of the following, in form and substance satisfactory to Surety and its counsel:

     (a) Favorable opinion of counsel to Principal and Indemnitors in form acceptable to Surety and its counsel, opining as to the validity and enforceability of the documents entered into between and among Surety and Indemnitors and opining to the perfection of the security interests of Surety in the Collateral. Said enforceability opinion will include an opinion that Integrated Electrical Services, Inc. is duly formed and that Indemnitors are validly existing, the execution and delivery of the documents, the fulfillment of the respective terms and conditions thereof, and the consummation of the respective transactions contemplated thereby will not violate any provisions of applicable law or require any governmental approvals that have not been obtained or taken, and will not conflict with or constitute a breach a default under the charter of incorporation, bylaws, or other governing documents of any of Indemnitors, as amended, or any material agreement, indenture, or other Debt instrument to which any of Indemnitors are a party or by which any of Indemnitors are bound, or any law, ordinance, administrative regulation, or decree of court, that is applicable to any of Indemnitors;

     (b) evidence of the good standing of each of Indemnitors in the jurisdiction in which such Indemnitor is formed;

     (c) an officer’s certificate of each of Indemnitors listed as a signatory to this Fifth Amendment that was not a signatory to the Agreement (each such Indemnitor being referred to in this Section 2 and Sections 6 and 7 as a “New Indemnitor”) certifying appropriate resolutions authorizing the execution, delivery, and performance of the applicable Surety Credit Documents, certifying that such resolutions have been approved in accordance with each of Indemnitors’ governing documents, and certifying incumbencies and true signatures of the officers so authorized; and

     (d) an Officer’s Certificate of each of Indemnitors (other than New Indemnitors) certifying that the Resolutions attached to the Officer’s Certificate dated May 12, 2006, or May 27, 2007, as applicable, are in full force and effect on and as of the date hereof without revocation, modification, or amendment in any respect and certifying that ▇▇▇▇ ▇▇▇▇▇▇▇ is the Senior Vice President and Vice President of Indemnitors, as reflected on the signature pages to this Fifth Amendment.

     3. Additional Party as Surety. Safeco Insurance Company of America, along with all of its Affiliates, Subsidiaries, co-sureties, and reinsurers, and/or any of the aforementioned entities’ successors or assigns is a Surety under the Agreement as of the date hereof (or as of the date they first issued a Bond, if earlier) with all of the rights and responsibilities of a Surety under the terms of the Agreement (including under Section 5 thereof) as if Safeco Insurance Company of America had been an original signatory to the Agreement.

     4. Security Interest; Obligation Secured. Section 5 of the Agreement is hereby amended by inserting the following sentence after the first sentence thereof:

Further, neither of Federal Insurance Company and Safeco Insurance Company of America, as Surety, and each of their Affiliates and Subsidiaries, will have a security interest in any Collateral related to projects for which such company (including its Affiliates and Subsidiaries) has not issued a Bond.

     Section 5 of the Agreement is further amended by inserting the following sentence at the end of the first paragraph:

Safeco Insurance Company of America, and its Affiliates and Subsidiaries, will not have any security interest or other interest in the Existing Letters of Credit and the Existing Pledge Collateral.

     5. Notices. Section 38 of the Agreement is hereby amended to provide that notices to Federal Insurance Company should be sent to the attention of ▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇ and ▇▇▇▇ ▇▇▇▇▇ and to add the following address to which notices to Surety will be given:

Safeco Insurance Company of America
▇▇▇▇ ▇^▇▇ ▇▇▇▇▇▇
▇▇▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇
▇▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇
Attn: ▇▇▇▇▇ ▇▇▇▇▇▇

     6. Representations and Warranties of Indemnitors. Each Indemnitor represents and warrants to Surety that all of the representations and warranties made by Indemnitors in the Agreement (whether made as an Indemnitor or as a Principal) and in this Fifth Amendment are true and correct as applicable to such Principal or Indemnitor in all material respects, as of the date hereof (except to the extent its representations and warranties specifically relate to an earlier date).

     Each New Indemnitor represents and warrants to Surety that all of the representations and warranties made by Indemnitors in the Agreement (whether made as an Indemnitor or as a Principal) 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 Fifth Amendment, the New Indemnitor will be deemed to be a party to the Agreement, as amended by this Fifth Amendment, and an “Indemnitor” and “Principal” for all purposes of the Agreement, as amended by this Fifth Amendment, and will have all the obligations of an Indemnitor and Principal 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 Fifth Amendment, applicable to such New Indemnitor (whether as an Indemnitor or Principal). Without limiting the generality of the foregoing terms of this Section 6, 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, 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.

     7. Power of Attorney. Each New Indemnitor hereby irrevocably constitutes and appoints Integrated Electrical Services, Inc. (and all officers, employees, or agents designated by Integrated Electrical 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 Integrated Electrical 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 Fifth 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 Integrated Electrical Services, Inc. will lawfully do or cause to be done by virtue hereof.

     8. Continuing Effect. Except as specifically set forth in this Fifth Amendment, the Agreement remains in full force and effect as originally written.

     9. Counterparts. This Fifth 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.

     IN WITNESS WHEREOF, the parties hereto have executed this Fifth Amendment as of the day and year first above written.

		SURETY:
		FEDERAL INSURANCE COMPANY
		By:		/s/ ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇
		Its:		Assistant Secretary
		SAFECO INSURANCE COMPANY OF AMERICA
		By:		/s/ ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇
		Its:		Vice President
		PRINCIPAL:
		INTEGRATED ELECTRICAL SERVICES, INC.
		By:		/s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇
				▇▇▇▇ ▇▇▇▇▇▇▇, Senior Vice President

[This space intentionally left blank.]

		▇▇▇▇▇▇ ELECTRIC COMPANY, INC.
		IES COMMERCIAL, INC.1
		IES CONSOLIDATION, LLC2
		IES HOUSTON RESOURCES, INC.
		IES INDUSTRIAL, INC.3
		IES RESIDENTIAL, INC.4
		▇▇▇▇ ▇▇▇▇▇▇▇▇▇, INCORPORATED
		MID-STATES ELECTRIC COMPANY, INC.
		PAN AMERICAN ELECTRIC, INC.
		▇▇▇▇▇▇ ▇▇▇▇ & COMPANY
		By:		/s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇
				▇▇▇▇ ▇▇▇▇▇▇▇
				Vice President
		▇▇▇▇▇ ELECTRIC LP
		By:		▇▇▇▇▇ Management LLC

		By:		/s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇
				▇▇▇▇ ▇▇▇▇▇▇▇
				Vice President

		▇▇▇▇▇▇ ELECTRIC LP
		By:		▇▇▇▇▇▇ Management LLC, its general partner
				By:		/s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇
						▇▇▇▇ ▇▇▇▇▇▇▇
						Vice President
		INDEMNITORS:
		INTEGRATED ELECTRICAL SERVICES, INC.
		By:		/s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇
				▇▇▇▇ ▇▇▇▇▇▇▇, Senior Vice President
		▇▇▇▇▇▇ ELECTRIC COMPANY, INC.
		IES COMMERCIAL, INC.
		IES CONSOLIDATION, LLC
		IES HOUSTON RESOURCES, INC.
		IES INDUSTRIAL, INC.
		IES RESIDENTIAL, INC.
		▇▇▇▇ ▇▇▇▇▇▇▇▇▇, INCORPORATED
		MID-STATES ELECTRIC COMPANY, INC.
		PAN AMERICAN ELECTRIC, INC.
		▇▇▇▇▇▇ ▇▇▇▇ & COMPANY
		By:		/s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇
				▇▇▇▇ ▇▇▇▇▇▇▇
				Vice President
		▇▇▇▇▇ ELECTRIC LP
		By:		▇▇▇▇▇ Management LLC
				By:		/s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇
						▇▇▇▇ ▇▇▇▇▇▇▇
						Vice President

		▇▇▇▇▇▇ ELECTRIC LP
		By:		▇▇▇▇▇▇ Management LLC, its general partner
				By:		/s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇
						▇▇▇▇ ▇▇▇▇▇▇▇
						Vice President

▇▇▇▇▇▇▇▇▇

		▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇ ▇▇
		▇▇▇▇▇▇▇▇/▇▇▇▇▇				▇▇▇▇▇ OF
		EXECUTIVE OFFICE		TYPE OF		FORMATION/		TAX I.D.		TRADE NAME
PRINCIPAL		(Six Months and Current)		ENTITY		REGISTRATION		NUMBER		(Past Six Months)
Integrated Electrical Services, Inc.		▇▇▇▇ ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇ ▇▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇▇		Corporation		Delaware		▇▇-▇▇▇▇▇▇▇		IES
▇▇▇▇▇▇ Electric Company, Inc.		▇▇▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇-▇▇▇▇		Corporation		North Carolina		56-154780		None
IES Commercial, Inc.		▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇, ▇▇ ▇▇▇▇▇		Corporation		Delaware		▇▇-▇▇▇▇▇▇▇		ARC Electric ARC Electric, Incorporated Advantage Controls Aladdin ▇▇▇▇ Electric & Air, Inc. Amber Electric, Inc. BW/BEC, Inc. BW/BEC II LLC Bexar Communications Bexar Electric Company, Inc. Bexar Electric Company, Ltd. ▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Electric ▇▇▇▇▇▇▇ Electric Commercial Communications Commercial Electrical Contractors, Inc. ▇▇▇▇▇▇ Electrical

EXHIBIT A

		PRINCIPAL PLACE OF
		BUSINESS/CHIEF				STATE OF
		EXECUTIVE OFFICE		TYPE OF		FORMATION/		TAX I.D.		TRADE NAME
PRINCIPAL		(Six Months and Current)		ENTITY		REGISTRATION		NUMBER		(Past Six Months)
										▇▇▇▇▇▇ Electric Contractors, Inc. ▇▇▇▇▇▇ Electrical Treasure Coast Electro-Tech, Inc. Electro Tech of Nevada Federal Communications Group, Inc. ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇ Electric Company IES Communications, Inc. IES Federal Contract Group, Inc. IES Northplains ▇▇▇▇▇▇▇▇ Electric, Inc. ▇▇▇▇▇▇▇ Electric, Inc. New Tech Electric New Tech Services New Technology Electrical Contractors, Inc. PrimeNet PrimeNet, Inc. Primo Electric Company ▇▇▇▇▇▇ Electric ▇▇▇▇▇▇ Electric LLC ▇▇▇▇▇▇▇ Electric

		▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇ ▇▇
		▇▇▇▇▇▇▇▇/▇▇▇▇▇				▇▇▇▇▇ OF
		EXECUTIVE OFFICE		TYPE OF		FORMATION/		TAX I.D.		TRADE NAME
PRINCIPAL		(Six Months and Current)		ENTITY		REGISTRATION		NUMBER		(Past Six Months)
										Company, Inc. Ron’s Electric Company, Inc. Valentine Communications Valentine Electrical, Inc.
IES Consolidation, LLC		▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇ ▇▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇		Limited Liability Company		Delaware		▇▇-▇▇▇▇▇▇▇		▇▇▇▇▇▇▇▇▇ Electric, Inc. Cypress Electrical Contractors, Inc. Intelligent Building Solutions, Inc. PrimeNet
IES Houston Resources, Inc.		▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇▇		Corporation		Delaware		76-214796		▇▇▇▇ Electric IES Mutifamily Resources ▇.▇. ▇▇▇▇ Electrical Contractors, LP ▇.▇. ▇▇▇▇ Holdings II LLC ▇.▇. ▇▇▇▇ Electric Company, Inc. ▇▇▇▇▇▇▇ Summit Electric ▇▇ ▇▇▇▇▇▇▇ Summit Holdings II LLC ▇▇▇▇▇▇▇ Summit Electric SecurePro Alarm Systems Summit Electric of Texas, Inc. Tesla Power and Automation L.P.

		▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇ ▇▇
		▇▇▇▇▇▇▇▇/▇▇▇▇▇				▇▇▇▇▇ OF
		EXECUTIVE OFFICE		TYPE OF		FORMATION/		TAX I.D.		TRADE NAME
PRINCIPAL		(Six Months and Current)		ENTITY		REGISTRATION		NUMBER		(Past Six Months)
										Tesla Power (Nevada) II LLC
IES Industrial, Inc.		▇▇▇ ▇▇▇▇▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇		Corporation		South Carolina		▇▇-▇▇▇▇▇▇▇		▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇ Co., Inc. ▇▇▇▇▇ Constructors ▇▇▇▇▇ Electric Constructors, Inc. ▇▇▇▇▇ International, a division of ▇▇▇▇▇ Electrical Constructors, Inc. General Partner, Inc. ▇▇▇▇▇▇▇▇ Electric, Ltd. ▇▇▇▇▇▇ Electric, Inc. ▇▇▇▇▇▇ Electrical Contractors, Inc.
IES Residential, Inc.		▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇		Corporation		Delaware		▇▇-▇▇▇▇▇▇▇		▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇ Electric Cross State Electric, Inc. HSE Alarm Systems HSE Electrical Contractors HSE Electrical Services HSE Special Systems ▇▇▇▇▇▇▇-▇▇▇▇▇▇▇▇ Electric ▇▇▇▇▇▇▇-▇▇▇▇▇▇▇▇ Electrical Contractors, ▇▇ ▇▇▇▇▇▇▇-▇▇▇▇▇▇▇▇ Holdings II, LLC

		▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇ ▇▇
		▇▇▇▇▇▇▇▇/▇▇▇▇▇				▇▇▇▇▇ OF
		EXECUTIVE OFFICE		TYPE OF		FORMATION/		TAX I.D.		TRADE NAME
PRINCIPAL		(Six Months and Current)		ENTITY		REGISTRATION		NUMBER		(Past Six Months)
										▇▇▇▇▇▇▇-▇▇▇▇▇▇▇▇ Electric, Inc. ▇▇▇▇▇▇▇▇ Electric Company, Inc. ▇▇▇▇ Electric, ▇▇ ▇▇▇▇ Electric, LLC ▇▇▇▇▇▇ Electric ▇▇▇▇▇▇ Electric Company, Inc.
▇▇▇▇ ▇▇▇▇▇▇▇▇▇, Incorporated		▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇ ▇▇▇▇▇-▇▇▇▇		Corporation		Delaware		▇▇-▇▇▇▇▇▇▇		▇▇▇▇ ▇▇▇▇▇▇▇▇▇
Mid-States Electric Company, Inc.		▇▇▇▇ ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇, ▇▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇		Corporation		Delaware		▇▇-▇▇▇▇▇▇▇		None
▇▇▇▇▇ Electric LP		▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇▇		Limited Partnership		Texas		▇▇-▇▇▇▇▇▇▇		▇▇▇▇▇ Electrical Contractors
Pan American Electric, Inc.		▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇		Corporation		Tennessee		▇▇-▇▇▇▇▇▇▇		None
▇▇▇▇▇▇ Electric LP		▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇▇		Limited Partnership		Texas		▇▇-▇▇▇▇▇▇▇		▇▇▇▇▇▇ Electrical Contractors
▇▇▇▇▇▇ ▇▇▇▇ & Company		▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇. ▇▇▇▇▇▇▇▇▇▇, ▇▇▇▇ ▇▇▇▇▇		Corporation		Ohio		▇▇-▇▇▇▇▇▇▇		None

INDEMNITORS

		PRINCIPAL PLACE OF
		BUSINESS/CHIEF				STATE OF
		EXECUTIVE OFFICE		TYPE OF		FORMATION/		TAX I.D.		TRADE NAME
INDEMNITORS		(Six Months and Current)		ENTITY		REGISTRATION		NUMBER		(Past Six Months)
Integrated Electrical Services, Inc.		▇▇▇▇ ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇ ▇▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇▇		Corporation		Delaware		▇▇-▇▇▇▇▇▇▇		IES
▇▇▇▇▇▇ Electric Company, Inc.		▇▇▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇-▇▇▇▇		Corporation		North Carolina		56-154780		None
IES Commercial, Inc.		▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇, ▇▇ ▇▇▇▇▇		Corporation		Delaware		▇▇-▇▇▇▇▇▇▇		ARC Electric ARC Electric, Incorporated Advantage Controls Aladdin ▇▇▇▇ Electric & Air, Inc. Amber Electric, Inc. BW/BEC, Inc. BW/BEC II LLC Bexar Communications Bexar Electric Company, Inc. Bexar Electric
										Company, Ltd. ▇▇▇▇▇▇▇ ▇▇▇▇▇▇ Electric ▇▇▇▇▇▇▇ Electric Commercial Communications Commercial Electrical Contractors, Inc. ▇▇▇▇▇▇ Electrical

EXHIBIT B

		PRINCIPAL PLACE OF
		BUSINESS/CHIEF				STATE OF
		EXECUTIVE OFFICE		TYPE OF		FORMATION/		TAX I.D.		TRADE NAME
INDEMNITORS		(Six Months and Current)		ENTITY		REGISTRATION		NUMBER		(Past Six Months)
										▇▇▇▇▇▇ Electric Contractors, Inc. ▇▇▇▇▇▇ Electrical Treasure Coast Electro-Tech, Inc. Electro Tech of Nevada Federal Communications Group, Inc. ▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇ Electric Company IES Communications, Inc. IES Federal Contract Group, Inc. IES Northplains ▇▇▇▇▇▇▇▇ Electric, Inc. ▇▇▇▇▇▇▇ Electric, Inc. New Tech Electric New Tech Services New Technology Electrical Contractors, Inc. PrimeNet PrimeNet, Inc. Primo Electric Company ▇▇▇▇▇▇ Electric ▇▇▇▇▇▇ Electric LLC
										▇▇▇▇▇▇▇ Electric

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		EXECUTIVE OFFICE		TYPE OF		FORMATION/		TAX I.D.		TRADE NAME
INDEMNITORS		(Six Months and Current)		ENTITY		REGISTRATION		NUMBER		(Past Six Months)
										Company, Inc. Ron’s Electric Company, Inc. Valentine Communications Valentine Electrical, Inc.
IES Consolidation, LLC		▇▇▇▇ ▇▇▇▇▇▇▇▇ ▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇ ▇▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇		Limited Liability Company		Delaware		▇▇-▇▇▇▇▇▇▇		▇▇▇▇▇▇▇▇▇ Electric, Inc. Cypress Electrical Contractors, Inc. Intelligent Building Solutions, Inc. PrimeNet
IES Houston Resources, Inc.		▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇▇		Corporation		Delaware		76-214796		▇▇▇▇ Electric IES Mutifamily Resources ▇.▇. ▇▇▇▇ Electrical Contractors, LP ▇.▇. ▇▇▇▇ Holdings II LLC ▇.▇. ▇▇▇▇ Electric Company, Inc. ▇▇▇▇▇▇▇ Summit Electric ▇▇ ▇▇▇▇▇▇▇ Summit Holdings II LLC ▇▇▇▇▇▇▇ Summit Electric SecurePro Alarm Systems Summit Electric of Texas, Inc. Tesla Power and Automation L.P.

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		EXECUTIVE OFFICE		TYPE OF		FORMATION/		TAX I.D.		TRADE NAME
INDEMNITORS		(Six Months and Current)		ENTITY		REGISTRATION		NUMBER		(Past Six Months)
										Tesla Power (Nevada) II LLC
IES Industrial, Inc.		▇▇▇ ▇▇▇▇▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇		Corporation		South Carolina		▇▇-▇▇▇▇▇▇▇		▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇ Co., Inc.
										▇▇▇▇▇ Constructors ▇▇▇▇▇ Electric Constructors, Inc. ▇▇▇▇▇ International, a division of ▇▇▇▇▇ Electrical Constructors, Inc. General Partner, Inc. ▇▇▇▇▇▇▇▇ Electric, Ltd. ▇▇▇▇▇▇ Electric, Inc. ▇▇▇▇▇▇ Electrical Contractors, Inc.
IES Residential, Inc.		▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇		Corporation		Delaware		▇▇-▇▇▇▇▇▇▇		▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇ Electric Cross State Electric, Inc. HSE Alarm Systems HSE Electrical Contractors HSE Electrical Services HSE Special Systems ▇▇▇▇▇▇▇-▇▇▇▇▇▇▇▇ Electric ▇▇▇▇▇▇▇-▇▇▇▇▇▇▇▇ Electrical Contractors, ▇▇ ▇▇▇▇▇▇▇-▇▇▇▇▇▇▇▇ Holdings II, LLC

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		EXECUTIVE OFFICE		TYPE OF		FORMATION/		TAX I.D.		TRADE NAME
INDEMNITORS		(Six Months and Current)		ENTITY		REGISTRATION		NUMBER		(Past Six Months)
										▇▇▇▇▇▇▇-▇▇▇▇▇▇▇▇ Electric, Inc. ▇▇▇▇▇▇▇▇ Electric Company, Inc. ▇▇▇▇ Electric, ▇▇ ▇▇▇▇ Electric, LLC ▇▇▇▇▇▇ Electric ▇▇▇▇▇▇ Electric Company, Inc.
▇▇▇▇ ▇▇▇▇▇▇▇▇▇, Incorporated		▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇ ▇▇▇▇▇-▇▇▇▇		Corporation		Delaware		▇▇-▇▇▇▇▇▇▇		▇▇▇▇ ▇▇▇▇▇▇▇▇▇
Mid-States Electric Company, Inc.		▇▇▇▇ ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇, ▇▇▇▇▇▇▇, ▇▇ ▇▇▇▇▇		Corporation		Delaware		▇▇-▇▇▇▇▇▇▇		None
▇▇▇▇▇ Electric LP		▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇▇		Limited Partnership		Texas		▇▇-▇▇▇▇▇▇▇		▇▇▇▇▇ Electrical Contractors
Pan American Electric, Inc.		▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇		Corporation		Tennessee		▇▇-▇▇▇▇▇▇▇		None
▇▇▇▇▇▇ Electric LP		▇▇▇▇ ▇▇▇▇▇▇ ▇▇▇▇ ▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇▇		Limited Partnership		Texas		▇▇-▇▇▇▇▇▇▇		▇▇▇▇▇▇ Electrical Contractors
▇▇▇▇▇▇ ▇▇▇▇ & Company		▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇▇▇▇▇ ▇▇▇▇. ▇▇▇▇▇▇▇▇▇▇, ▇▇▇▇ ▇▇▇▇▇		Corporation		Ohio		▇▇-▇▇▇▇▇▇▇		None