WP Rocket - WP Rocket offers a caching plugin for Wordpress.
OptinMonster - OptinMonster helps to convert abandoning website visitors into subscribers and customers.
Yoast - Yoast offers plugins to improve SEO and optimize web sites and blogs.
OptiMonk - OptiMonk is the most powerful Onsite Retargeting platform, that helps you increase the conversion rate of your site, and get more leads by recovering lost visitors.
Wordfence - Comprehensive security plugin for WordPress.
POPUPSMART - A no-code tool to increase e-commerce sales, build email lists and engage with your visitors in just 5-minutes.