*[http://www.i2isys.com/products i2i Systems]: Mid-size company selling population analytics to practices (outpatient) since 2000
*[http://www.alignmenthealthcare.com Alignment Healthcare]: $125M in funding so far
== Companies with somewhat related offerings ==
*[http://www.welltok.com Welltok]: More social, gaming aspects. Basically employee wellness offering. Started by the ex-Founder of Trizetto Group.
*[http://www.abilto.com AbilTo]: Customized programs for managing patient populations with certain conditions