GNA maintains an impressive list of more than 200 clients, including: on-road and off-road fleets; technology companies; utility companies; fuel suppliers; local, state, and federal government agencies; environmental organizations; nonprofits; and communities.

  • Albertsons
  • Ambre Energy North America, Inc.
  • American Honda Parts Distribution
  • Bob Hope Airport
  • Border Valley Trading
  • Burrtec Waste Industries, Inc.
  • C.V. Ice Company, Inc.
  • CalFrac Well Services Ltd.
  • California Cartage Company
  • Carnival Corporation & PLC
  • City of Banning
  • City of Barstow
  • City of Commerce
  • City of Fresno
  • City of Inglewood
  • City of Los Angeles, Department of Transportation (LADOT)
  • City of Los Angeles, General Services Department
  • City of Phoenix Public Transit Department
  • City of Plano
  • City of Port Hueneme
  • City of Rancho Cucamonga
  • City of Redlands
  • City of San Bernardino
  • City of Santa Rosa
  • Core-Mark
  • CR&R Waste and Recycling
  • Dean Foods
  • EBY-Brown
  • EF Transit Inc. (Monarch Beverage)
  • Ensign Energy Services Inc.
  • Foothill Transit
  • Frito-Lay
  • Giant Eagle
  • Golden State Foods
  • Hayday Farms
  • J.B. Hunt Transport Services, Inc.
  • Jackson, Wyoming
  • Long Beach Transit
  • Los Angeles County Internal Services Department
  • Los Angeles Department of Water and Power (LADWP)
  • Matheson Trucking, Inc.
  • Matson Navigation Company
  • Metropolitan Stevedore Company
  • Morongo Basin Transit Authority (MBTA)
  • National Park Service, U.S. Department of the Interior (Grand Canyon)
  • National Railway Equipment Company (NREC)
  • Norfolk Southern Railway
  • P&O NedLloyd Container Line Limited
  • Paper Transport Inc.
  • Penske Corporation
  • Port Authority of Allegheny County (Pittsburgh Transit)
  • Procter & Gamble
  • Ralphs Grocery Co.
  • Ryder System, Inc.
  • Safeway Inc.
  • Salmon Companies
  • Santa Monica’s Big Blue Bus
  • Sheehy Mail
  • Southwest Transportation Agency
  • Stater Bros. Markets
  • Swift Transportation Inc.
  • Sysco Food Services
  • Taormina Industries Inc.
  • TCI Transportation
  • The Kroger Company
  • TOTE Inc.
  • Transystems
  • TraPac
  • Union Pacific Railroad
  • United Parcel Service (UPS)
  • Waste Management, Inc.
  • Yellow Cab Co.
  • Yusen Terminals Inc. (YTI)
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  • ACD / ACD CRYO
  • Advanced Cleanup Technologies Inc. (ACTI)
  • Air Liquide
  • Air Products & Chemicals
  • American Honda Motor Company, Inc.
  • American Power Group (APG)
  • Anadarko Petroleum Corporation
  • Applied Natural Gas Fuels Inc.
  • BAE Systems
  • BMW
  • Boshart Engineering Inc.
  • Brehon Energy (Hythane Company, LLC)
  • California Fleet Solutions
  • Callandra LCNG Fuels Corporation
  • Calpine Corporation
  • Capacity Trucks
  • Caterpillar / Electro-Motive Diesel
  • Caterpillar Inc.
  • Chart Industries Inc.
  • City of Vernon
  • Clean Air Power
  • Clean Energy Fuels
  • Colony Energy Partners
  • ConocoPhillips
  • Constellation Energy
  • Crossroads Equipment Lease & Finance
  • Cummins Westport Inc.
  • Daimler Trucks North America (DTNA)
  • DTE Energy Co.
  • Ebus
  • Edison Electric Vehicles
  • Efficient Drivetrains Inc (EDI)
  • Elizabethtown Gas
  • EnCana Natural Gas Inc.
  • EQT Corporation (Equitable Gas)
  • EV Connect
  • Ferus LNG
  • Fortistar RNG
  • Freightliner Trucks
  • GAIN
  • Gas Advisors (China Light & Power)
  • GE Oil & Gas
  • GE Transportation
  • Golden Gate Petroleum
  • Gershman, Brickner & Bratton, Inc.
  • HESS Corporation
  • High Mountain Fuels
  • Husky Energy Inc.
  • Hybrid Kinetic Motors Corporation (HKMC)
  • Hydrogen Energy
  • Keyrock Energy
  • Landi Renzo USA
  • LNG Canada
  • Los Angeles Freightliner Inc.
  • Lubrizol Corporation
  • Marine Fuel Cell
  • MDArchey
  • Mechanical Engineering Controls Automation Corporation (MECA)
  • Mitsubishi Corporation
  • Navistar International Corporation
  • NexGen Fueling, Inc.
  • NoPetro
  • Northwest Natural Gas
  • Oxbow Gas
  • Pacific Gas & Electric Company (PG&E)
  • Parker Hannifin Corporation
  • Parkland Fuel Corporation
  • PG&E Generating Co.
  • Philadelphia Gas Works (PGW)
  • Phoenix Motorcars, Inc.
  • Pioneer Natural Resources Co.
  • Pivotal LNG (an AGL Resources Company)
  • Prometheus Energy
  • Range Resources Corporation
  • Reliant Energy
  • River Birch, Inc
  • Roush CleanTech
  • Scott Pump Services Ltd.
  • Sempra Energy
  • Sempra LNG (Energia Costa Azul LNG Terminal)
  • Shell Energy North America
  • Solar Turbines
  • Sound Energy Solutions
  • Southern California Edison Co. (SCE)
  • Southern California Gas Company
  • Spire
  • Sumitomo Corporation
  • SunEco Energy
  • Tallgrass Energy
  • TECO Energy
  • The Linde Group
  • Trillium CNG
  • Trinity Industries, Inc.
  • UGI Corportation
  • UrbanX Renewables
  • U.S. General Services Administration
  • Velocity Vehicle Group
  • Volvo Group
  • Washington Gas
  • Westport Innovations
  • Wittmar Engineering & Construction Inc.
  • Wyoming Machinery Company
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  • Advanced Clean Transportation (ACT) Expo
  • AECOM Technology Corporation
  • American Clean Skies Foundation
  • American Gas Association
  • America’s Natural Gas Alliance (ANGA)
  • AMSEC
  • Antelope Valley Air Pollution Control District (AVAPCD)
  • Asphalt Green
  • Association of Bay Area Governments (ABAG)
  • Bay Area Air Quality Management District (BAAQMD)
  • Bay Area Economic Development Alliance for Business (EDAB)
  • British Columbia Province, Ministry of Natural Gas
  • California Air Pollution Control Officers Association Annual Conference (CAPCOA)
  • California Air Resources Board (CARB)
  • California Clean Freight Coalition
  • California Cleaner Freight Coalition
  • California Energy Commission (CEC)
  • California Natural Gas Vehicle Partnership (CNGVP)
  • Calstart Inc.
  • Cement Industries Environmental Consortium (CIEC)
  • City of El Segundo
  • Clean Fuels Ohio
  • Environmental Defense Fund
  • Faster Freight – Cleaner Air Conference Series
  • Fleets & Fuels
  • Fuel Freedom Foundation
  • Game Changer
  • Gas Technology Institute (GTI)
  • Gateway Cities Council of Governments (GCCOG)
  • Greater Long Island Clean Cities Coalition
  • Greer, Daily, Minter
  • Heinz Foundations
  • HHP Insight
  • High Horsepower (HHP) Summit
  • Houston Advanced Research Center (HARC)
  • Houston-Galveston Area Council (HGAC)
  • Interstate Clean Transportation Corridor (ICTC)
  • Latham & Watkins LLP
  • Lerach, Coughlin, Stoia, Geller, Rudman & Robbins LLP
  • Long Beach Clean Cities Coalition
  • Los Angeles Economic Development Corporation (LAEDC)
  • Low Carbon Fuels Conference Series
  • Marcellus Shale Coalition
  • Metropolitan Transportation Commission (MTC)
  • Milberg LLP
  • Mobile Source Air Pollution Reduction Review Committee (MSRC)
  • Mojave Desert Air Quality Management District
  • Morongo Band of Mission Indians
  • National Waste & Recycling Association (NWRA)
  • Natural Resources Defense Council (NRDC)
  • New York City Department of Transportation (NYCDOT)
  • New York City Mayor’s Office of Sustainability
  • New York City Transit
  • NGV Global
  • Orange County Council of Governments (OCCOG)
  • PierPASS
  • Playa Vista
  • Port Authority of New York and New Jersey (PANYNJ)
  • Port of Long Beach (POLB)
  • Port of Los Angeles (POLA)
  • Port of Oakland
  • Post of San Diego
  • Port of Seattle
  • Port of Tacoma
  • PortCheck
  • Propane Education & Research Council (PERC)
  • Puget Sound Clean Air Agency
  • Puget Sound Energy
  • Riverside County Transportation Commission (RCTC)
  • San Bernardino Associated Governments (SANBAG)
  • San Diego Community College District
  • San Diego County Air Pollution Control District (SDAPCD)
  • Sierra Nevada Conservancy
  • South Coast Air Quality Management District (SCAQMD)
  • Southern California Association of Governments (SCAG)
  • State of Wyoming, Office of the Governor
  • Tetra Tech, Inc.
  • Texas Campaign for Clean Transportation
  • TIAX, LLC
  • U.S. Department of Energy: Argonne National Laboratory
  • U.S. Department of Energy: Brookhaven National Laboratory
  • U.S. Department of Energy: Clean Cities Program
  • U.S. Department of Energy: National Renewable Energy Laboratory (NREL, “Tiger Teams”)
  • U.S. Department of Energy: Office of Energy Efficiency and Renewable Energy, Latin America (EERE)
  • U.S. Department of Transportation Maritime Administration (MARAD)
  • U.S. Environmental Protection Agency (U.S. EPA)
  • University of California Riverside, Center for RNG
  • University of Wyoming, School of Energy Resources
  • Vancouver Port Authority
  • Ward Alternative Energy
  • Washington State Department of Transportation
  • Waste Empowered
  • Western Propane Gas Association (WPGA)
  • Western Riverside Council of Governments (WRCOG)
  • Wyoming Business Council
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