Screaming Frog - Screaming Frog is search engine marketing agency offering search engine optimisation and pay-per-click advertising services.
SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
SEOmator - SEO website analysis & audit tool
Advanced Web Ranking - Advanced Web Ranking (AWR) is a robust rank tracker, specially designed for large amounts of keywords, which makes it the ideal solution for agencies and medium-to-large in-house teams.
Page Optimizer Pro - Page Optimizer Pro is an on-page SEO tool, allows marketers to produce flawlessly optimized pages for Google with ease.