Yoast - Yoast offers plugins to improve SEO and optimize web sites and blogs.
Unity Ads - Unity Ads allows to supplement the existing revenue strategy by allowing to monetize thr entire player base.
Jackmail - A newsletter plugin for Wordpress.
MoPub - MoPub is a mobile monetization platform that helps publishers drive more revenue from advertising and mobile transactions.
Wordfence - Comprehensive security plugin for WordPress.
Appodeal - Appodeal is a supply-side platform for mobile apps, that serves and protects publishers rather than advertisers.