The group's principal activity is to provide land surveying and mapping services. The group provides review of subdivision maps, tract maps and Records of Surveys for numerous local public agencies such as the cities of Irvine, Mission Viejo, Fullerton, Laguna Niguel, Irwindale, San Marino, Bell and the County of Orange. Johnson-Frank serves as the City Surveyor for the cities of Irvine, Irwindale, San Marino and Mission Viejo. The group operates from the United States.
