This Finpip overview summarizes Exness as commonly marketed to retail traders (founded 2008; HQ: Limassol, Cyprus). Typical platforms include MetaTrader 4, MetaTrader 5, Exness Terminal.
Regulatory snapshot (not legal advice): CySEC; FCA; FSA Seychelles; FSCA; CBCS; confirm registration for your account
Official website: https://www.exness.com/. Confirm licence numbers, product availability, and costs there before funding an account.