Serpstat - Search analytics, Rank tracking, Backlink analysis and Site 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.
SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters
iBusinessPromoter - IBP is a popular search engine optimization software with a ranking guarantee. If you are interested in SEO and website promotion, visit this page.
SEO PowerSuite - Get all SEO tools in one pack - download free edition of SEO PowerSuite and get top 10 rankings for your site on Google and other search engines!
DataForSEO - DataForSEO offers API data for SEO companies that deliver results of tasks for Rank tracking, SERP, Keyword data and On-page APIs.