CERTAIN SIX LIMITED

10748501 · incorporated 2017-05-02 · Active

Data as of — company details 1 September 2026 · ownership 18 September 2026 · directors 19 September 2026 · filing history 26 September 2026

Registered office

9TH FLOOR, 107 CHEAPSIDE, LONDON, UNITED KINGDOM, EC2V 6DN

Accounts overdue

No

Current ownership (bands, not exact percentages)

Mr Mark Knopfler — 50-75% (shares)

Mr Ronnie Michael Harris — 50-75% (shares)

Only holders of 25% or more are registered as persons with significant control, so this list won’t add up to 100% — the remainder is held by people below that threshold, whom Companies House doesn’t name.

Current directors

Joseph Knopfler — 24 August 2017 (appointed)

Alex Michael Metaxas — 14 September 2017 (appointed)

Paul Schuman — 29 November 2018 (appointed)

Nicholas Alexander Smith — 25 August 2017 (appointed)

Simon Keith Smith — 2 May 2017 (appointed)

What the company does

Business and domestic software development

Self-reported to Companies House, not verified against actual trading activity.

Latest accounts (2025-03-31)

Net assets: £3,212,847
Average employees: 0

Timeline