SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
SEOquake - SEOquake provides a browser extension to conduct on-page SEO audit.
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.
Serpstat - Search analytics, Rank tracking, Backlink analysis and Site Audit tool.