# Plenum Systems (Plenum Systems Limited) Private limited company registered in Upminster, classed under “Manufacture of other fabricated metal products n.e.c.”. - Company number: 03767928 - Status: Active - Type: Private limited company - Incorporated: 11 May 1999 - Registered office: 30 Chelmer Road, Upminster, RM14 1QT - Location: Upminster - Activity: Manufacture of other fabricated metal products n.e.c. ## Latest filed profit Profit after tax in the year to 31 March 2023: **£1.65k**, from its latest filed accounts. Turnover, net assets, cash, staff, earlier years, ratios, directors and owners are on the page for subscribers. ## Questions people ask ### What does Plenum Systems do? Private limited company registered in Upminster, classed under “Manufacture of other fabricated metal products n.e.c.”. ### How much turnover does Plenum Systems make? Answered on the page for FirmFacts Pro subscribers: https://firmfacts.co/company/plenum-systems-03767928 ### Is Plenum Systems profitable? Plenum Systems's profit isn't public: small companies may file without a profit and loss account. ### How many people work at Plenum Systems? Answered on the page for FirmFacts Pro subscribers: https://firmfacts.co/company/plenum-systems-03767928 ### Who runs and owns Plenum Systems? Answered on the page for FirmFacts Pro subscribers: https://firmfacts.co/company/plenum-systems-03767928 ### Where is Plenum Systems based? Its registered office is 30 Chelmer Road, Upminster, RM14 1QT, in Upminster. ### When was Plenum Systems founded? Plenum Systems Limited was incorporated on 11 May 1999. ### Is Plenum Systems still trading? The register lists Plenum Systems Limited as active. ## Timeline Recent filings and changes at Companies House. - 2026-05-12: Change of details for Mr Stuart Michael Cumming as a person with significant control on 3 April 2026 - 2026-04-09: Termination of appointment of James Edward Austin Cumming as a director on 3 April 2026 - 2026-04-09: Termination of appointment of James Edward Austin Cumming as a secretary on 3 April 2026 - 2025-12-21: Micro company accounts made up to 30 September 2025 - 2025-11-17: Appointment of Mrs Janet Smith as a secretary on 5 November 2025 - 2025-10-24: Previous accounting period extended from 31 March 2025 to 30 September 2025 - 2025-10-20: Registered office address changed from Unit 32 Stratford Workshops Burford Road Stratford London E15 2SP to 30 Chelmer Road Upminster RM14 1QT on 20 October 2025 - 2024-12-06: Unaudited abridged accounts made up to 31 March 2024 - 2024-01-31: Unaudited abridged accounts made up to 31 March 2023 - 2022-12-07: Unaudited abridged accounts made up to 31 March 2022 - 2021-12-29: Unaudited abridged accounts made up to 31 March 2021 - 2020-12-31: Unaudited abridged accounts made up to 31 March 2020 - 2019-12-11: Unaudited abridged accounts made up to 31 March 2019 - 2018-12-14: Unaudited abridged accounts made up to 31 March 2018 - 2017-12-08: Unaudited abridged accounts made up to 31 March 2017 - 2016-12-19: Total exemption full accounts made up to 31 March 2016 - 2016-01-29: Total exemption full accounts made up to 31 March 2015 - 2014-10-26: Total exemption small company accounts made up to 31 March 2014 - 2013-12-11: Total exemption small company accounts made up to 31 March 2013 - 2012-11-19: Total exemption full accounts made up to 31 March 2012 - 2012-02-14: Total exemption full accounts made up to 31 March 2011 - 2011-01-19: Total exemption full accounts made up to 31 March 2010 - 2010-06-02: Director's details changed for Stuart Michael Cumming on 11 May 2010 - 2010-06-02: Director's details changed for Mr James Edward Austin Cumming on 11 May 2010 - 2010-01-22: Total exemption full accounts made up to 31 March 2009 --- Source: Companies House filings (Open Government Licence v3.0). Figures are as filed; nothing is estimated. Page: https://firmfacts.co/company/plenum-systems-03767928