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.
Kaggle Datasets - Share, collaborate on, and analyze open data
London Datastore - Datastore, dashboard and API for London's data
Tunzal - Tunneling solution to expose local endpoint at minimum cost.
London Rent Hacker - Get customised living costs for every area of London