AerServ - AerServ offers monetization solution for mobile publishers.
IndustryBrains - IndustryBrains provides unique advertising and monetization services, for both advertisers and publishers
OpenX - Ad technology platform available as a hosted service or as an open source download.
Clickky - Clickky is a full-stack platform for mobile advertisers and publishers, with the current focus on its own SSP and the RTB Marketplace.
MoPub - MoPub is a mobile monetization platform that helps publishers drive more revenue from advertising and mobile transactions.
33Across - 33Across is a publisher monetization and traffic platform that powers the largest and fastest growing publishers to create traffic & revenue