Platinum Level

  • Foothill Transit*
  • Los Angeles County Metropolitan Transportation Authority (LA Metro)*
  • San Francisco Municipal Transportation Agency (SFMTA)*​
  • Sound Transit*​
  • South Coast British Columbia Transportation Authority (TransLink)*
  • WSP*

Gold Level

  • AMTRAK*
  • Ann Arbor Area Transportation Authority (The Ride)
  • Capital Metropolitan Transportation Authority (Austin, TX)*
  • Champaign-Urbana Mass Transit District*
  • Hampton Roads Transit*
  • IMPulse NC, LLC*
  • Intercity Transit*
  • Keolis Commuter Services, LLC
  • King County Metro Transit*
  • Massachusetts Bay Transportation Authority (MBTA)
  • Metro Transit (Minneapolis)
  • Metrolinx (GO Transit)
  • Metropolitan Atlanta Rapid Transit Authority*
  • Santa Clara Valley Transportation Authority (VTA)*
  • Société de transport de Montréal (STM)
  • Southeastern Pennsylvania Transportation Authority (SEPTA)
  • TRC Companies, Inc
  • Tri-County Metropolitan Transportation District of Oregon (TriMet)*​
  • Visual Marking Systems, Inc.

Silver Level

  • Caltrain
  • CDM Smith*
  • Greater Cleveland Regional Transit Authority*​
  • HDR, Inc.
  • Jacksonville Transportation Authority
  • Lane Transit District
  • Louis Berger
  • Pinellas Suncoast Transit Authority*​
  • Regional Transportation Commission of Washoe County
  • Rock Island County Metropolitan Mass Transit District (MetroLINK)
  • San Francisco Bay Area Rapid Transit District (BART)*
  • San Mateo County Transit District, SamTrans bus service*
  • Santa Monica Big Blue Bus​​
  • SYSTRA Consulting, Inc.
  • Valley Metro

Bronze Level

  • Clever Devices Ltd.
  • Dallas Area Rapid Transit (DART)
  • Honolulu Authority for Rapid Transportation (HART)
  • Interurban Transit Partnership (The Rapid)
  • Southwest Ohio Regional Transit Authority
  • Stacy and Witbeck, Inc.
  • Transit Authority of River City (TARC)*
  • Utah Transit Authority*
  • Wendel

Entry Level

  • ABC Companies
  • AECOM*
  • American Public Transportation Association
  • Anil Verma Associates, Inc.
  • Atkins, North America
  • BAE Systems, HybridDrive Solutions
  • Ben Franklin Transit*
  • Bombardier Transportation*
  • BYD Motors, Inc.
  • California High-Speed Rail Authority
  • Chapel Hill Transit*
  • Chatham Area Transit Authority/Veolia Transportation
  • Chicago Transit Authority
  • Commonwealth Office of Transit Authority
  • Corpus Christi Regional Transportation Authority
  • Eastern Contra Costa Transit Authority
  • Gannett Fleming, Inc.
  • GENFARE
  • Gilbert Tweed Associates, Inc.
  • Go Triangle*
  • Golden Empire Transit District
  • Greater Bridgeport Transit Authority*
  • Greater Peoria Mass Transit District*
  • Greystone Management Solutions
  • Hillsborough Area Regional Transportation Authority
  • Indianapolis Public Transportation Corporation (IndyGo)*
  • INIT Innovations in Transportation Inc.
  • Jacobs
  • Kansas City Area Transportation Authority
  • Kitsap Transit
  • Knoxville Area Transit (KAT)
  • Lea+Elliott, Inc.*
  • Legacy Resource Group
  • Lin Industries, Inc.
  • Long Beach Transit
  • Macro Corporation
  • Massachusetts Bay Commuter Railroad Company
  • Medical Transportation Management (MTM), Inc.
  • METRO Regional Transit Authority (Akron, OH)
  • Metropolitan Transportation Authority*
  • Miami-Dade Transit
  • Michael Baker International
  • Minnesota Valley Transit Authority
  • Monterey-Salinas Transit
  • Mountain Metropolitan Transit (Mountain METRO)*
  • My Ride Rock Hill
  • New Flyer of America
  • NextBus, Inc.
  • NJ TRANSIT*
  • North County Transit District
  • Northern Arizona Intergovernmental Public Transportation Authority (NAIPTA)
  • NS Wash Systems
  • Olivier, Inc.
  • OmniTrans
  • Orange County Transportation Authority
  • Paratransit Inc.*
  • Parsons Transportation Group
  • Pierce Transit
  • Port Authority of Allegheny County
  • Proterra Inc.*
  • Raul V. Bravo + Associates, Inc.
  • Regional Transportation Authority (Chicago)
  • Regional Transportation District (Denver)
  • Reseau de Transport Metropolitan
  • Sacramento Regional Transit Authority
  • Salem-Keizer Transit
  • SanUVAire, LLC
  • SNC_Lavalin Rail & Transit
  • Southern California Regional Rail Authority (SCRRA)
  • Stadler US Inc.
  • Stantec
  • The Coleman Group, Inc.
  • The Solís Group
  • Toledo Area Regional Transit Authority
  • Transit Marketing Group (TransMark)
  • Transit Systems Engineering, Inc.
  • Umass Transit Service
  • Unitrans (UC Davis)
  • Urban Engineers
  • Urban Solar
  • VHB
  • VIA Metropolitan Transit*
  • Washington Metropolitan Area Transit Authority (WMATA)
  • Yuma County Intergovernmental PTA

* Founding Signatory of APTA Sustainability Commitment​​​​​​​​​

Last updated:  September 29, 2021

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