It is indeed a huge scam network. Scams will typically either take offshore companies or simply invent fake companies. Only rarely, they are operated by companies in Europe as is the case with the Capital Letter scam network. Capital Letter GmbH, registered in Munich, Germany was the operator of several large scams until the end of 2020. In addition, two other companies also registered in Germany, Brunnlitz GmbH and Tokkata Software GmbH, participated in the scams. All three companies are operated by Ukrainian individuals; all received warnings from regulators.
Against the German Capital Letter GmbH and its network of offshore entities and scams such as BrightFinance, SolidInvest, GFXRoyal, STSRoyal, STSCrypto, or GFXFinance, various European regulators such as the UK FCA (here), BaFin (here), or the FMA (here) have already warned and issued Cease and Desist Orders over the last months. The Italian Consob has ordered a blackout of the sites (here). However, the scammers are unimpressed. Some scams are still active. Now the UK Financial Conduct Authority (FCA) issued a new warning.