| Primary Area Served |
Transit System |
| Atlanta, GA |
Metropolitan Atlanta Rapid Transit Authority (MARTA) |
| Boston, MA |
Massachusetts Bay Transportation Authority (MBTA) |
| Charlotte, NC |
Charlotte Area Transit System (CATS) |
| Chicago, IL |
Northeast Illinois Regional Commuter Railroad Corporation (METRA) |
| Cleveland, OH |
Greater Cleveland Regional Transit Authority (RTA) |
| Columbus, OH |
Central Ohio Transit Authority (COTA) |
| Dallas, TX |
Dallas Area Rapid Transit Authority (DART) |
| Fort Worth, TX |
Trinity Railway Express |
| Houston, TX |
Metropolitan Transit Authority of Harris County (METRO) |
| Kansas City, MO |
Kanasas City Area Transportation Authority (KCATA) |
| Los Angeles, CA |
Southern California Regional Rail Authority (Metrolink) |
| Miami, FL |
Tri-County Commuter Rail Authority (Tri-Rail) |
| New Haven, CT |
Connecticut Department of Transportation Shore Line East |
| New York, NY |
MTA Long Island Rail Road (LIRR) |
| New York, NY |
MTA Metro-North Railroad (MNRR) |
| New Jersey/New York, NY |
New Jersey Transit Corporation (NJT) |
| Northern Indiana/Chicago, IL |
Northern Indiana Commuter Transportation District (NICTD) |
| Philadelphia, PA |
Southeastern Pennsylvania Transportation Authority (SEPTA) |
| Providence, RI |
Rhode Island Public Transit Authority |
| Raleigh, NC |
Triangle Transit Authority (TTA) |
| Salt Lake City, UT |
Utah Transit Authority (UTA) |
| San Antonio, TX |
Via Metropolitan Transit (VIA) |
| San Diego, CA |
North County Transit District (NCTD) |
| San Francisco, CA |
Peninsula Corridor Joint Powers Board (CALTRAIN) |
| San Jose, CA |
Altamont Commuter Express (ACE) |
| Seattle, WA |
Central Puget Sound Regional Transit Authority (Sound Transit) |
| Syracuse, NY |
Central New York Regional Transportation Authority (CENTRO) |
| Washington, DC |
Virginia Railway Express (VRE) |
