SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
Synthesio - Synthesio is a social intelligence tool or a marketing software that is specially made for the purpose of social media monitoring and social analytics.
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
Swift Social - All-in-One Social Media Growth and Management Tool
Website Checker Tech - WebsiteChecker.Tech is SaaS tool that detects SEO and availability issues of your website, making it easier for you to fix them.
Opteo - Opteo searches for statistically significant patterns in an account and creates "optimization tasks" to improve account performance.