44. Tyler Technologies
2016 Rank: 50
Top Executive: John Marr Jr., CEO
Location: Plano, Texas
Tyler Technologies is focused solely on the public sector, providing integrated software and IT services to state, county and city governments and school districts. The Plano, Tex.-based company's technology offerings range from municipal financial management and property taxes, to integrated systems for courts and justice agencies, to education administration applications. Tyler Technologies just acquired Modria, a developer of online dispute resolution software for government and commercial entities.