To check the authenticity of documents You can go to the official e-service tax service about the verification of legal entities and individual entrepreneurs in respect of which the documents submitted for state registration.

To check the authenticity of documents You can go to the official service Companies House in respect of which the documents submitted for this the link
CERTIFICATE OF STATE REGISTRATION OF A LEGAL ENTITY
the license for realization of activity on management of investment funds
A certificate of registration in the UK
Document confirming the validity of the certificate of the company!