Dataset Search - Making it easier to discover datasets. Made by Google.
Gigadata - Gigadata makes large datasets like total stock market prices, crypto, news, financials, reddit posts, government stats, the weather available via a simple API.
SnowyOwl - A user friendly tool to manage your dataset
Commons Marketplace - A marketplace to find and publish open data sets.
Linkclump - Linkclump is a tool related to productivity that allows users to speed up their analysis and capturing of links found on the web.
Octolis - Full-stack data platform for business teams