{"name":"SONARDYNE INTERNATIONAL LIMITED","company_number":"01299452","status":"Active","type":"Private Limited Company","incorporated":"1977-02-21","dissolved":null,"registered_office":"Ocean House Blackbushe Business Park, Saxony Way, Yateley, Hampshire, GU46 6GD","postcode":"GU46 6GD","sic_codes":[{"code":26511,"description":"Manufacture of electronic measuring, testing etc. equipment, not for industrial process control"}],"principal_activity":"The principal activity of the company continued to be that of the design, manufacture and supply of electronic and mechanical instruments for the offshore energy, ocean science and maritime security and defence markets.","previous_names":[{"name":"SONARDYNE (WESTERN) LIMITED","changed_on":"1992-06-15"},{"name":"SONARDYNE CONSULTANTS LIMITED","changed_on":"1983-03-21"},{"name":"SONARDYNE MARKETING LIMITED","changed_on":"1980-12-31"}],"warnings":[],"accounts":{"category":"Full","year_end":"31 December","last_made_up_to":"2025-12-31","next_due":"2027-09-30"},"employees":{"count":309,"accounts_date":"2023-12-31"},"financials":[{"financial_date":"2023-12-31","profit_loss":13328351,"net_assets":41610007,"cash":8250217,"average_employees":309},{"financial_date":"2022-12-31","profit_loss":6381890,"net_assets":32281657,"cash":3128730,"average_employees":266}],"officers":{"current":3,"resigned":33,"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":0,"outstanding":0},"gazette_notices":[],"insolvency_outcome":null,"ai_summary":"Sonardyne International Limited is a highly creditworthy borrower with a 48-year trading history, £67.9M turnover, and £15.53M pre-tax profit in 2023, supported by a strongly capitalised balance sheet (£41.6M net assets) and growing cash reserves (£8.25M). Revenue and profits have grown sharply over two years with an expanding order book, though concentration in oil and gas markets and export control restrictions warrant ongoing monitoring. The company is recommended for approval on standard commercial terms.","website":"https://www.sonardyne.com/","links":{"page":"https://www.companiesintheuk.co.uk/ltd/sonardyne-international","people":"https://www.companiesintheuk.co.uk/company/sonardyne-international/people","filing_history":"https://www.companiesintheuk.co.uk/company/sonardyne-international/filing-history","companies_house":"https://find-and-update.company-information.service.gov.uk/company/01299452","financials":"https://www.companiesintheuk.co.uk/company/sonardyne-international/financial","control":"https://www.companiesintheuk.co.uk/company/sonardyne-international/control","charges":"https://www.companiesintheuk.co.uk/company/sonardyne-international/charges","pay_gap":"https://www.companiesintheuk.co.uk/company/sonardyne-international/pay-gap","ai_analysis":"https://www.companiesintheuk.co.uk/company/sonardyne-international/analysis"},"source":"CompaniesInTheUK, from Companies House, The Gazette and other public registers (see /support/about). Cite as: CompaniesInTheUK, https://www.companiesintheuk.co.uk/ltd/sonardyne-international"}