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.
Reader API for DataStack - Scrape and parse websites with a single endpoint
Commons Marketplace - A marketplace to find and publish open data sets.
SnowyOwl - A user friendly tool to manage your dataset
Datastarta - A database of 3150 angel investors to get seed funding