This Finpip overview summarizes FOREX.com as commonly marketed to retail traders (founded 2001; HQ: Bedminster, USA (GAIN Capital)). Typical platforms include FOREX.com platforms, MetaTrader 4, MetaTrader 5.
Regulatory snapshot (not legal advice): NFA/CFTC (US); FCA; CIMA; ASIC; MAS; multi-entity StoneX group
Official website: https://www.forex.com/. Confirm licence numbers, product availability, and costs there before funding an account.