Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
Searchmetrics - Searchmetrics Suite for enterprise companies provides SEO marketing and analytics, SEO optimization, social and content marketing.
UpSeo - UpSeo is a best-in-class website traffic generator, allowing you to get more potential visitors to your website and enhance conversions.
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!
Dragon Metrics - Dragon Metrics is an SEO platform offering rank tracking, onsite optimization, link management, keyword research tools, & more
Page Optimizer Pro - Page Optimizer Pro is an on-page SEO tool, allows marketers to produce flawlessly optimized pages for Google with ease.