Advanced Google Adwords - An in-depth look at using AdWords effectively
Adriel - A platform to monitor, control, and optimize your paid advertising from 600+ ad channels under a single dashboard.
AdNabu - AdNabu is a Google Ads PPC automation software.
Adtuo - Optimize Google and Facebook Ads collaboratively
Opteo - Opteo searches for statistically significant patterns in an account and creates "optimization tasks" to improve account performance.
ADYOUNEED - Marketing platform to create and optimize ads