{"name":"SEMAPHORE SYSTEMS LIMITED","company_number":"01427899","status":"Active","type":"Private Limited Company","incorporated":"1979-06-11","dissolved":null,"registered_office":"Unit 4 Quadrant Business Centre, 135 Salusbury Road, London, NW6 6RJ","postcode":"NW6 6RJ","sic_codes":[{"code":62020,"description":"Information technology consultancy activities"}],"principal_activity":null,"previous_names":[{"name":"MASTLOCK LIMITED","changed_on":"1986-11-24"}],"warnings":[],"accounts":{"category":"Micro","year_end":"31 August","last_made_up_to":"2025-08-31","next_due":"2027-05-31"},"employees":null,"financials":[],"officers":{"current":5,"resigned":0,"complete":true,"note":"Names and details of individual officers are on the People page (subscriber-only on this site) and free at Companies House."},"charges":{"total":4,"outstanding":3},"gazette_notices":[],"insolvency_outcome":null,"ai_summary":null,"website":"https://www.semaphore-systems.co.uk/","links":{"page":"https://www.companiesintheuk.co.uk/ltd/semaphore-systems","people":"https://www.companiesintheuk.co.uk/company/semaphore-systems/people","filing_history":"https://www.companiesintheuk.co.uk/company/semaphore-systems/filing-history","companies_house":"https://find-and-update.company-information.service.gov.uk/company/01427899","control":"https://www.companiesintheuk.co.uk/company/semaphore-systems/control","charges":"https://www.companiesintheuk.co.uk/company/semaphore-systems/charges"},"source":"CompaniesInTheUK, from Companies House, The Gazette and other public registers (see /support/about). Cite as: CompaniesInTheUK, https://www.companiesintheuk.co.uk/ltd/semaphore-systems"}