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- LeadDog Consulting, LLC14
- ESRI11
- Environmental Systems Research Institute (Redlands, Calif.)7
- Economic and Social Research Institute5
- NAVTEQ (Firm)5
- Tele Atlas (Firm : U.S.)5
- Tele Atlas North America, Inc.5
- AND International Publishers N.V.4
- DeLorme Publishing Company, Inc.4
- Bureau of Transportation Statistics3
- Economic and Social Research Institute (Reston, Va.)3
- CHGIS, Harvard Yenching Institute2
- LAND INFO Worldwide Mapping, LLC2
- Sanborn Map Company2
- Sistemas de Información Geográfica, S.A. de C.V.2
- TomTom North America, Inc.2
- Community Cartography1
- CommunityCartography1
- Federal Railroad Administration (FRA)1
- Halcrow Group Limited1