After some digging the following company also seems to have a connection to HitBtc.
Cryptopay INC Ltd
GUNIASHOV, Dmitrii (<-- registered owner)
ACTIVE
Correspondence address 145/147, Hatfield Road, St. Albans, England, AL1 4JY
Role Director
Date of birth November 1988
Appointed on 14 October 2013
Nationality Russian
Country of residence United Kingdom
Occupation Director
https://beta.companieshouse.gov.uk/company/08730592https://cryptopay.me/Address: Flat 3, 92 Wilton Road
London
SW1V 1DU
The address corresponds with the address of HitBtc's initial shareholder and owner, Georgii Basiladze (born 24/08/87 in Russia). There are/were several more companies registered on that address, and in at least one of them both Georgii and Dmitrii are registered as active directors. They actually changed the addresses some time ago, so the link wasn't visible immediately, but np, the internet will find out.
CPS TRANSFERS LIMITED
Company number 10311113
Registered office address 145/147 Hatfield Road, St. Albans, England, AL1 4JY
Company status Active
Company type Private limited Company
Incorporated on 3 August 2016
https://beta.companieshouse.gov.uk/company/10311113/persons-with-significant-control2 active persons with significant control / 0 active statements
Mr Dmitrii Guniashov
ACTIVE
Correspondence address 145/147, Hatfield Road, St. Albans, England, AL1 4JY
Notified on 6 April 2017
Date of birth November 1988
Nationality Russian
Country of residence England
Nature of control
Ownership of shares – More than 25% but not more than 50%
Ownership of voting rights - More than 25% but not more than 50%
Right to appoint and remove directors
andMr Georgii Basiladze
ACTIVE
Correspondence address 145/147, Hatfield Road, St. Albans, England, AL1 4JY
Notified on 6 April 2017
Date of birth August 1987
Nationality Russian
Country of residence Russia
Nature of control
Ownership of shares – More than 25% but not more than 50%
Ownership of voting rights - More than 25% but not more than 50%