Compressed Natural Gas Fuel Infrastructure Consultants

Marathon Technical Services provides a unique combination of technical and financial analysis services dedicated to the Natural Gas for Vehicles (NGV) fuel infrastructure market.

Welcome to Marathon. This website introduces visitors to Marathon's wide range of alternative fuel professional services and is intended as a resource that provides current Compressed Natural Gas (CNG) information to those users who are trying to increase their knowledge and understanding of CNG.  

Marathon is North America's leading CNG consulting firm dedicated to providing technical and financial analysis and support services for the Compressed Natural Gas fuel infrastructure markets. Our highly qualified staff has over 30 years of dedicated full time experience in the gaseous fuels market giving Marathon a depth of experience and capabilities that is unmatched in the industry and ensuring that we deliver innovative solutions to your fueling project.  

Our financial and technical expertise enables us to provide a full suite of professional services for your Compressed Natural Gas fueling project. Marathon provides services from project conceptual analysis, through the design and construction phases to the development of maintenance and support programs. Marathon's extensive gaseous fuels experience ensures that your project will progress to a timely and successful conclusion.  

Let Marathon be your CNG Station and Building Upgrade expert.


  • "…we needed an impartial consultant that had no affiliation to any equipment supplier.  Marathon provided objective advice to help us sort through the claims of manufacturers…"
    -Project Manager for station customer

  • …they guided us through all phases of our project.  Marathon had knowledge and expertise in everything from the business analysis and decisions, to the technical requirements related to the CNG station design and garage upgrades.  They provided the full scope of service we needed…(small city executive)

  • …Marathon is very focused on safety and quality… (long term industry executive)

  • …we didn’t realize the life cycle cost implications of accepting the (low) service pressure being offered by the utility. Marathon educated us, and the utility engineering staff, as to the mutual benefits of higher inlet pressure.  This expertise saved us hundreds of thousands of dollars….(large municipal fleet Project Manager)

  • …Marathon asked the right questions…we were on track to significantly undersize the facility until Marathon reviewed our assumptions…(General Engineering Consultant for a medium sized transit fleet)

  • …we had three very different station equipment proposals and no way to evaluate them.  Marathon helped us to determine the real benefits and costs of each and determine the best value….(large transit fleet Project Manager)

  • …I learned more in this one day course from CNG U than I did in 17 months of working with our station design build contractor…(transit fleet Project Manager)

  • …Marathon was like our on staff CNG technical expert…(retail fuel station operator)

  • …we had no way of knowing whether the contractor was giving us real information—Marathon provided us with expert support to keep them honest…(transit fleet General Manager)

  • …we won’t do a CNG project without Marathon on our team…(large engineering firm Project Manager)