UProc for Sheets - Boost your sales, marketing and IT tasks from Google Sheets
SocialPilot - SocialPilot is an app designed to help businesses and professionals with social media marketing.
Email Verification on Google Sheets - An add-on for email verification directly in Google Sheets
Fomo - Fomo turns your site into the online equivalent of a busy store
Sheetlist - Discover free Google Sheets for marketing, finance and more
Buzzstream - Build Relationships. Build Buzz. Web-based software that helps the world’s best marketers promote their products, services and content.