Registry TimelineSIGMA OS SOFTWARE LTD
13201691 · incorporated 2021-02-15 · Active
Data as of — company details 1 October 2026 · ownership 5 October 2026 · directors 30 September 2026 · filing history 30 September 2026
- Registered office
- FOX COURT, SIGMAOS, SUITE 1.06, 14 GRAY’S INN ROAD, LONDON, ENGLAND, WC1X 8HN
- Accounts overdue
- No
- Current ownership (bands, not exact percentages)
- Mr Ali Attar — 25-50% (shares)Mr Mahyad Ghassemibouyaghchi — 25-50% (shares)Mr Saurav Mitra — 25-50% (shares)
- Current directors
- Ali Attar — 13 July 2021 (appointed)Mahyad Ghassemibouyaghchi — 15 February 2021 (appointed)Saurav Mitra — 13 July 2021 (appointed)
- What the company does
- Other software publishing
- Latest accounts (2024-12-31)
- Net assets: £-2,458,755
Average employees: 4
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.
Self-reported to Companies House, not verified against actual trading activity.
Timeline
See everything that has happened at SIGMA OS SOFTWARE LTD, in date order
The full timeline puts every director change, ownership change, accounts filing, charge and share issue on one page, with figures from the company’s accounts charted alongside — and you can download it as CSV or Excel. Full access is needed to view it.