Date of Filing: January 23, 2001 File No.: 1-16169 - ------------------------------------------------------------------------------- Form U-5A NOTIFICATION OF REGISTRATION Filed under Section 5(a) of the Public Utility Holding Company Act of 1935 Exelon Ventures Company, LLC Name of Registrant The undersigned holding company hereby notifies the Securities and Exchange Commission that it registers under and pursuant to the provisions of Section 5(a) of the Public Utility Holding Company Act of 1935 and furnishes the following information as to the registrant and subsidiary companies thereof: (1) Exact name of registrant: Exelon Ventures Company, LLC (2) Address of principal executive offices: 10 South Dearborn Street, 37th Floor, Chicago, Illinois 60603 (3) Name and address of officer to whom notices and communications should be addressed: Ruth Ann M. Gillis Exelon Ventures Company, LLC 10 South Dearborn Street, 37th Floor, Chicago, Illinois 60603 (4) Certain information regarding the registrant and each subsidiary company thereof (indented to reflect parent-subsidiary relationships): Exelon Ventures Company & Subsidiaries Name of Company Organization State Type of Business Exelon Generation Company, LLC LLC PA Holding Company PECO Energy Power Company Corporation PA Utility Susquehanna Power Company Corporation MD Utility The Proprietors of the Susquehanna Canal Corporation MD Inactive Susquehanna Electric Company Corporation MD Utility AmerGen Energy Company, LLC (50% interest) LLC DE Exempt Wholesale Generator AmerGen Vermont, LLC LLC VT Exempt Wholesale Generator Exelon (Fossil) Holdings, Inc. Corporation DE Investment Sithe Energies Inc. (49.9% interest) Corporation DE Energy-related Exelon Peaker Development General, LLC LLC DE Investment Exelon Peaker Development Limited, LLC LLC DE Investment Extex LaPorte L.P. L.P. TX Exempt Wholesale Generator Concomber Ltd. Corporation Bermuda Captive Insurance Company Exelon Enterprises Company, LLC LLC PA Energy Services Exelon Communications Holdings LLC LLC DE Telecommunications CH-1140993

Name of Company Organization State Type of Business AT&T Wireless PCS of Philadelphia, LLC (49% interest) LLC DE Telecommunications PHT Holdings LLC LLC DE Telecommunications PECO Hyperion Telecommunications (49% Partnership PA Telecommunications interest held; PECO holds 1% interest) Exelon Communications LLC LLC PA Telecommunications Energy Trading Company Corporation DE Investment Enterprises Management, Inc. Corporation PA Investment UniGrid Energy LLC (50% interest) LLC DE Energy-related CIC Global, LLC (50% interest) LLC DE Telecommunications Exelon Capital Partners, Inc. Corporation DE Investment (investments in Energy-related and Telecommunications) Enertech Capital Partners II (approximately 11% Corporation DE interest) Permits Now (approximately 15% interest) Corporation MD OmniChoice.com, Inc. (approximately 30% interest) Corporation DE VITTS Network Group, Inc. (approximately 20% Corporation DE interest) NEON Communications Inc. (approximately 10% interest) Corporation DE Exelon Infrastructure Services, Inc. (approximately 95% Corporation DE Infrastructure Services interest) Exelon Infrastructure Services of PA, Inc. Corporation DE Infrastructure Services EIS Engineering, Inc. Corporation DE Infrastructure Services P.A.C.E. Field Services, LLC LLC DE Infrastructure Services P.A.C.E. Environmental, LLC LLC DE Infrastructure Services Chowns Communications, Inc. Corporation DE Infrastructure Services Fischbach and Moore Electric, Inc. Corporation DE Infrastructure Services MRM Technical Group, Inc. Corporation DE Infrastructure Services Aconite Corporation Corporation MN Infrastructure Services Gas Distribution Contractors, Inc. Corporation MO Infrastructure Services Mid-Atlantic Pipeliners, Inc. Corporation DE Infrastructure Services Mueller Distribution Contractors, Inc. Corporation GA Infrastructure Services Mueller Energy Services, Inc. Corporation NY Infrastructure Services Mueller Pipeliners, Inc. Corporation DE Infrastructure Services Mechanical Specialties Incorporated Corporation WI Infrastructure Services Rand-Bright Corporation Corporation WI Infrastructure Services Syracuse Merit Electric, Inc. Corporation DE Infrastructure Services NEWCOTRA, Inc. Corporation DE Infrastructure Services Fischbach and Moore, Incorporated Corporation NY Infrastructure Services Fischbach and Moore Electrical Corporation DE Infrastructure Services Contracting Inc. T.H. Green Electric Co., Inc. Corporation NY Infrastructure Services Trinity Industries, Inc. Corporation DE Infrastructure Services OSP Consultants, Inc. Corporation VA Infrastructure Services International Communications Services, Inc. Corporation NV Infrastructure Services OSP Inc. Corporation VA Infrastructure Services OSP Servicios, S.A. de C.V. S.A. de C.V. Mexico Inactive OSP Telecom, Inc. Corporation DE Infrastructure Services OSP Telecomm de Mexico, S.A. de C.V. S.A. de C.V. Mexico Inactive OSP Telcom de Colombia, LTDA LTDA Colombia Inactive OSP Telecommunications, Ltd. Limited Bermuda Inactive RJE Telecom, Inc. Corporation FL Infrastructure Services Utility Locate & Mapping Services, Inc. Corporation VA Infrastructure Services Universal Network Services Inc. (49% interest) Corporation CA Infrastructure Services Dashiell Holdings Corp. Corporation DE Infrastructure Services Dashiell Corporation Corporation TX Infrastructure Services Dacon Corporation Corporation TX Infrastructure Services VSI Group Inc. Corporation DE Infrastructure Services International Vital Solutions Group, Inc. Corporation MD Infrastructure Services Michigan Trenching Service, Inc. Corporation MI Infrastructure Services Lyons Equipment, Inc. Corporation MI Infrastructure Services M.J. Electric Corporation DE Infrastructure Services Electric Services, Inc. Corporation DE Infrastructure Services EIS Investments, LLC LLC DE Infrastructure Services Web Services, LLC (49% interest) LLC LLC OK Infrastructure Services Adwin Equipment Company Corporation PA Energy-related Horizon Energy Company Corporation PA Inactive (Energy-related) Utility Competitive Advantage Fund I, LLC LLC DE Energy-related or (11.11% interest) Telecommunications Unicom Energy Services Inc. Corporation IL Energy Services Systems Engineering and Management Corp. Corporation DE Energy-related Unicom Energy Inc. Corporation DE Energy-related

Name of Company Organization State Type of Business Unicom Energy Ohio Inc. LLC DE Energy-related AllEnergy Gas & Electric Marketing Company, LLC Corporation TN Energy-related Unicom Mechanical Services, Inc. Corporation IL Energy Services Wenninger Company, Inc. Corporation WI Energy Services Unicom Power Holdings Inc. Corporation DE Energy-related Unicom Power Marketing Inc. Corporation DE Energy-related Unicom Healthcare Management Inc. Corporation IL Medical Plan Liabilities UT Holdings Inc. Corporation DE Energy systems Northwind Chicago LLC (50% interest) LLC DE Energy systems Unicom Thermal Development Inc. Corporation DE Energy systems Unicom Thermal Technologies Inc. Corporation IL Energy systems Unicom Thermal Technologies Boston Inc. Corporation DE Energy systems Northwind Boston LLC (25% interest) LLC MA Energy systems Unicom Thermal Technologies Houston Inc. Corporation DE Energy systems Northwind Houston LLC (25% interest) LLC DE Energy systems Northwind Houston LP (25% ) Limited Partnership DE Energy systems Unicom Thermal Technologies North America Inc. Corporation DE Energy systems Northwind Thermal Technologies Canada Inc. Corporation Canada Energy systems Unicom Thermal Technologies Inc. Corporation Canada Energy systems UTT National Power Inc. Corporation IL Energy systems Northwind Midway LLC LLC DE Energy systems UTT Nevada Inc. Corporation NE Energy systems Northwind Aladdin LLC (75% interest) LLC NV Energy systems Northwind Las Vegas LLC (50% interest) LLC NV Energy systems UTT Phoenix, Inc. Corporation DE Energy systems Northwind Arizona Development LLC (50% interest) LLC DE Energy systems Northwind Phoenix LLC (50% interest) LLC DE Energy systems SIGNATURE Pursuant to the requirements of the Public Utility Holding Company Act of 1935, the registrant has caused this Notification of Registration to be duly signed on its behalf in the City of Chicago and State of Illinois on the 23rd day of January, 2001. EXELON VENTURES COMPANY, LLC By: /s/ Ruth Ann M. Gillis ------------------------------ Name: Ruth Ann M. Gillis Title: Vice President, Finance (Seal) Attest: /s/ Scott N. Peters - -----------------------------------

VERIFICATION State of Illinois County of Cook The undersigned being duly sworn deposes and says that she has duly executed the attached Notification of Registration dated January 23, 2001 for and on behalf of Exelon Ventures Company, LLC; that she is the Vice President, Finance of such company; and that all action taken by stockholders, directors, and other bodies necessary to authorize deponent to execute and file such instrument has been taken. Deponent further says that she is familiar with such instrument and the contents thereof, and that the facts therein set forth are true to the best of her knowledge, information and belief. By: /s/ Ruth Ann M. Gillis --------------------------------- Name: Ruth Ann M. Gillis (OFFICIAL SEAL) Subscribed and sworn to before me, a notary public this 23rd day of January, 2001 /s/ Mary L. Kwilos - --------------------- My commission expires October 26, 2001