The following transit agencies and transit associations participated in the synthesis report either by completing the survey, sharing the survey invitations among their members and peers, or participating in interviews or informational calls. Some did all three. The team appreciated all of their support.
Please note that not all agencies participating in the survey provided their agency identifying information, so the states that represent those agencies in the listing are not included.
| Ann Arbor Area Transportation Authority, Michigan | California |
| Capital Metro Transportation Authority, Texas | Georgia (multiple agencies) |
| Dallas Area Rapid Transit (DART), Texas | Illinois |
| District Department of Transportation, District of Columbia | Ohio |
| Hampton Roads Transit, Virginia | Utah |
| Hillsborough Area Regional Transit Authority (HART), Florida | Virginia (multiple agencies) |
| Kansas City Area Transportation Authority, Missouri | |
| King County Department of Metro Transit, Washington | |
| Metropolitan Transit Authority of Harris County, Texas | |
| New Jersey Transit, New Jersey | |
| New Orleans Regional Transit Authority | |
| Pinellas Suncoast Transit Authority (PSTA), Florida | |
| Regional Transportation District (RTD), Colorado | |
| San Diego Metropolitan Transit System, California |