Medialets Servo is a mobile ad serving platform that delivers all types of mobile ads across various mobile environments. This case study analyzed data from Q2-Q3 2015 to compare performance of B2B versus B2C mobile campaigns on the platform. Key findings include: B2B campaigns had higher click-through rates on tablets than phones, yielded twice as many tablet impressions as B2C campaigns, and had 70% less invalid traffic than B2C benchmarks. B2B campaigns also showed consistent performance across days of the week with peaks in impressions and clicks occurring at night. The case study demonstrates how analyzing mobile campaign performance can help strategically plan media buys.