Polygraph Media Buys Offergraph

Austin-based Polygraph Media, the developer of tools to help brands with their social media campaigns, has acquired fellow Austin software company Offergraph. Financial terms of the buy were not disclosed. Offergraph was founded by Ian Karnell, Jeremi Karnell, and Dr. Edo Airoldi, and also was developing predictive marketing software. Polygraph Media is led by Chris Treadway.