As a trusted industry leader with over 20 years of experience, EC Infosystems® offers a proven and cutting-edge, comprehensive Billing/CIS as well as EDI services to our clients. We are a company deeply rooted in the energy industry, and our experienced, professional leadership and staff ensure that whether you are an Energy Supplier, Utility, Energy Broker/Aggregator or Self Service client, our products shall provide you with the edge to succeed in today’s competitive energy marketplace.

Products and Services

What We Offer

Energy Suppliers
Electronic Data Interchange (EDI)

EC Infosystems® is the largest and most widely used EDI service provider in the deregulated energy marketplace with connections to over 120 plus Natural Gas and Electric Utilities nationally. Our EDI system offers fully hosted and outsourced EDI transaction management services. From lean startups to organizations with established operations, our outsourced transaction processing is a fit for companies of all sizes.

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Our fully EDI-integrated Billing/CIS platform allows you to run your back office effortlessly and handle market exceptions effectively, ensuring seamless operations and maximum profitability. Handling these exceptions requires real-time access to sophisticated, actionable and transparent data reporting in order to uphold excellent customer service. An integrated, user-friendly Billing/CIS platform is the cornerstone of your business, and with over 80 installs nationally supporting over 2.5 million meters monthly the UtiliBill™ platform is the most widely implemented solution in the deregulated energy space.

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Business Process Outsourcing (BPO)

With EC Infosystems®, you have a choice - manage the day-to-day business requirements through our cloud based UtiliBill™ system or take advantage of our BPO offering. With the latter, we provide a fully experienced team to handle operations, billing and exceptions, thereby providing you with the ability to focus on growth and other business priorities.

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Electronic Data Interchange (EDI)

EC Infosystems® provides a hosted EDI platform for Utilities to send and receive EDI, ANSI X12, XML, or proprietary file market transactions with their Energy Marketers serving electric and/or gas load in your territory. Our services include marketer certification and testing, system set-ups, transaction processing, and transaction management on behalf of the Utility companies.

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Consulting Services

With over 20 years of experience in the energy industry, EC Infosystems’ consulting services provides clients with the ability to take advantage of a knowledgeable team without the overhead of a full-time staff. From product management to implementing Billing/CIS and EDI services, our dedicated employees bring a wealth of knowledge to any energy project.

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EC Infosystems’ Fourth Annual User Conference


Wednesday November 10 – Friday November 12, 2021
Four Seasons Resort Orlando at Walt Disney World
10100 Dream Tree Boulevard Lake Buena Vista, Orlando FL 32836

Register & Book Your Stay 

Icons of platforms we support: Windows Linux and MacOS X

Deregulated Energy Markets

Unlocking Your Full Potential
EC Infosystems® offers a user-friendly technology platform for rapid entry into every deregulated energy market in the US as well as internationally. Despite unique challenges in each market, our EDI and Billing/CIS products and services give you the competitive edge in operations without sacrificing territory coverage.

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District of Columbia

  • Washington Gas


  • Delmarva Power (Exelon)
  • Connectiv (previously Delmarva Power)


  • PGE - Pacific Gas & Electric
  • San Diego Gas and Electric
  • So Cal Edison
  • Southern Cal Gas

Rhode Island

  • Narragansett Electric (NGRID)


  • AEP Texas Central Co
  • AEP Texas North Co
  • Atmos Energy
  • Centerpoint Energy Houston Elec LLC
  • Nueces Electric Coop Inc Pilot
  • Oncor Electric Delivery Co
  • Sharyland Utilities LP
  • Sharyland Utilities LP McAllen
  • Texas-New Mexico Power Co
  • Pedernales Elec Coop
  • San Patrico Elec


  • Atlanta Gas Co (AGL)
  • Liberty (GA)


  • Ameren
  • Commonwealth Edison Co (ComED)
  • Northshore Gas
  • Ameren Gas


  • Consumers Energy
  • Consumers Energy
  • Michigan Consolidated Gas (DTE)


  • Columbus Southern Power Ohio (AEP)
  • AEP Ohio Power
  • Cleveland Illuminating (The Illuminating Company/FE)
  • Dominion East Ohio (DEO)
  • Dayton Power & Light (DPL)
  • Duke Energy - Electric
  • Ohio Edison (FE)
  • Toledo Edison (FE)
  • Cincinnati Gas & Elec
  • Columbia Gas OH
  • Duke Gas Choice
  • Dominion East Ohio


  • Allegheny Power PA/Allegheny Energy (FE)
  • Duquesne Light
  • Met Ed (FE)
  • PECO Energy - Electric (Exelon)
  • Penelec (FE)
  • Penn Power (FE)
  • PPL Electric
  • UGI Electric
  • West Penn Power (FE)
  • Columbia Gas PA
  • PECO Energy - Gas (Exelon)
  • Peoples Gas
  • UGI Central Penn Gas- PA
  • UGI Gas Utilities
  • Penn Natural Gas (UGI)
  • Philadelphia Gas Works (PGW)

New York

  • Central Hudson - Electric
  • Con Edison - Electric
  • Niagara Mohawk (NIMO)
  • NYSEG - Electric
  • Rochester Gas & Electric- Electric (RG&E)
  • Central Hudson- Gas
  • Con Edison - Gas
  • Keyspan Long Island
  • Keyspan New York
  • National Fuel Gas NY
  • Niagara Mohawk (NIMO)
  • NYSEG - Gas
  • Orange & Rockland - Gas
  • Rochester Gas & Electric- Gas (RG&E)
  • St Lawrence Gas


  • Baltimore Gas and Electric (BG&E)
  • Delmarva Power MD
  • PEPCO (Exelon)
  • Allegheny Energy (FE)
  • Southern Maryland Electric Corporation (SMECO)
  • Baltimore Gas and Electric (BG&E)
  • UGI Central Penn Gas- MD


  • Bangor Hydro Electric (Emera Maine)
  • Central Maine Power
  • Maine Public Service


  • Nantucket Electric (NGRID)
  • Nat Grid MA (NGRID)
  • Boston Electric (NSTAR)
  • Commonwealth Electric (NSTAR)
  • Western Massachusetts Electric (WMECO - Eversource)
  • Massachusetts Elec
  • Fitchburg Gas And Electric (Unitil)
  • Cambridge Gas (NSTAR)
  • Eversource (NSTAR)
  • Berkshire Gas
  • Boston Gas Company
  • Essex Gas (Boston Gas)
  • Bay State Gas


  • Connecticut Light & Power (Eversource)
  • United Illuminating

New Jersey

  • Atlantic City Electric (ACE/Exelon)
  • Jersey Central Power & Light - Electric (FE)
  • PSE&G - Electric
  • Rockland Electric Company (RECO) - New Jersey
  • Elizabethtown Gas
  • New Jersey Natural Gas (NJNG)
  • PSE&G - Gas
  • South Jersey Gas (SJG)


  • Rappahannock Elec
  • Northern Neck Elec Coop
  • Shenandoah Valley Elec Coop
  • South Side Elec Coop
  • Columbia Gas of Virginia (CGV)


  • Citizens Gas
  • Vectren (IND)


  • Columbia Gas KY


  • NorthWestern Energy
  • Energy West
  • NorthWestern Energy

New Hampshire

  • Public Service of New Hampshire (PSNH/Eversource)
  • New Hampshire Elec Co-Op (NHEC)
  • UES
  • Granite State Electric (Liberty Energy)
  • Liberty Energy Utilities
  • Unitil Energy Systems


  • Florida Public Utility
  • Tampa Electric
  • Peoples Gas (Emera)


  • PGE (Portland General)


  • Oklahoma Natural Gas

North Carolina

  • Piedmont
  • PSNC Energy

South Carolina

  • South Carolina Gas and Electric (SCE&G)
  • South Carolina Gas and Electric (SCE&G)

How can we support your business?

Contact us today