GB · Person with significant control

Alexander Gerko

Alexander Gerko is recorded on the Companies House register of people with significant control for 11 UK companies.

Register details

Facts

Name on the register
Mr Alexander Gerko
Type
Individual
Nationality
British
Country of residence
United Kingdom
Year of birth
1979
Significant control now
11 UK companies
First notified
6 April 2016
Source
Companies House register of people with significant control, 20 September 2026

At a glance

Alexander Gerko's companies

  • Alexander Gerko owns 75% or more of the shares in 6 of the 11 companies listed below.
  • Main lines of business: other information technology service activities (3), activities of financial services holding companies (2) and security dealing on own account (2).
  • Registered offices in London (11).
  • The companies were incorporated between 2010 and 2024.
  • 4 of the companies also list other people or companies with significant control.

These details come from the register as published on 20 September 2026. The register can change at any time: check the current entry live before relying on it.

Companies

Significant control now

UK companies that list Alexander Gerko as a person with significant control, with the nature of that control as registered.

CompanyStatusIncorporatedTownBusinessNature of controlSince
CROMULON CAPITAL LLP
OC451620 · Limited Liability Partnership
Active28 March 2024London—Holds more than 25% but not more than 50% of the voting rights; Has the right to 75% or more of the surplus assets on a winding up28 March 2024
CROMULON CAPITAL SERVICES LIMITED
15588861 · Private Limited Company
Active23 March 2024LondonOther service activities n.e.c.Owns 75% or more of the shares; Holds 75% or more of the voting rights; Can appoint or remove a majority of the board of directors23 March 2024
COLOCO LIMITED
13291939 · Private Limited Company
Active25 March 2021LondonOther information technology service activitiesHas significant influence or control25 March 2021
XTX MARKETS TRADING LIMITED
12832334 · Private Limited Company
Active24 August 2020LondonSecurity dealing on own accountOwns 75% or more of the shares; Holds 75% or more of the voting rights; Can appoint or remove a majority of the board of directors24 August 2020
XTX HOLDINGS (UK) LIMITED
12827536 · Private Limited Company
Active20 August 2020LondonActivities of financial services holding companiesHas significant influence or control20 August 2020
XTX MARKETS TECHNOLOGIES LIMITED
12300034 · Private Limited Company
Active6 November 2019LondonOther information technology service activitiesOwns 75% or more of the shares; Holds 75% or more of the voting rights; Can appoint or remove a majority of the board of directors6 November 2019
XTX INVESTMENTS UK LIMITED
11074405 · Private Limited Company
Active21 November 2017LondonActivities of financial services holding companiesOwns 75% or more of the shares; Holds 75% or more of the voting rights; Can appoint or remove a majority of the board of directors21 November 2017
HFFX LLP
OC358538 · Limited Liability Partnership
Active - Proposal to Strike off8 October 2010London—Holds more than 50% but less than 75% of the voting rights; Has the right to more than 50% but less than 75% of the surplus assets on a winding up6 April 2016
XTX MARKETS LIMITED
09415174 · Private Limited Company
Active30 January 2015LondonSecurity dealing on own accountOwns 75% or more of the shares; Holds 75% or more of the voting rights; Can appoint or remove a majority of the board of directors6 April 2016
XTX MEMBER LIMITED
09414125 · Private Limited Company
Active30 January 2015LondonOther information technology service activitiesOwns 75% or more of the shares; Holds 75% or more of the voting rights; Can appoint or remove a majority of the board of directors6 April 2016
XTX RESEARCH LLP
OC397853 · Limited Liability Partnership
Active30 January 2015London—Can appoint or remove a majority of the members who manage it6 April 2016

Connections

Others with significant control of these companies

  • Cromulon Capital Services LimitedCROMULON CAPITAL LLP
  • Xtx Holdings (Uk) LimitedXTX MARKETS TRADING LIMITED
  • Xtx Holdings LimitedXTX MARKETS TECHNOLOGIES LIMITED
  • Xtx Member LimitedXTX RESEARCH LLP

Explained

What significant control means

Every UK company must keep a register of the people with significant control over it and file it with Companies House. Someone has significant control if they own more than 25% of the shares or voting rights, can appoint or remove a majority of the board, or otherwise have significant influence or control. Companies can also be controlled through another company, which then appears on the register itself.

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