1. Vincent Granville, AnalyticBridge,@analyticbridge
2. Gregory Piatetsky, KDnuggests, @kdnuggets
3. Christopher Berry, The Analytics Revolution, @cjpberry
4. Alex Popescu, MyNoSQL, @al3xandru
5. Harish Kotadia, Infosys, @HKotadia
Source: Traackr