Owler - Owler is a crowdsourced data model allowing users to follow, track, and research companies.
Landofcoder Multivendor Marketplace - Magento 2 Marketplace Extension / Magento 2 Multi-Vendor Extension helps to convert your eCommerce store into a completely active multi-vendor marketplace like Amazon, Etsy or eBay, etc with multiple vendors and customers conducting transactions.
Whatagraph - Whatagraph is the most visual multi-source marketing reporting platform. Built in collaboration with digital marketing agencies
CS-Cart Multi-Vendor - On-premises eCommerce marketplace builder
QlikSense - A business discovery platform that delivers self-service business intelligence capabilities
Yo!Kart - A Tailor-made Online Marketplace Software