SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
SerpWatch - Track your rankings with a fast and 100% accurate rank checker. Manage multiple locations and projects with full app integration. Try it for free for 15 days.
SEOmator - SEO website analysis & audit tool
Pro Rank Tracker - Rank tracking & reporting software solution
Lumar - (Previously DeepCrawl) Hosted SEO spider to analyze and find problems with websites.
Serpstat - Search analytics, Rank tracking, Backlink analysis and Site Audit tool.