{"name":"MAINLINE ENVIRONMENTAL SYSTEMS LIMITED","company_number":"04017927","status":"Active","type":"Private Limited Company","incorporated":"2000-06-20","dissolved":null,"registered_office":"Wellington House, 273-275 High Street, London Colney, Hertfordshire, United Kingdom, AL2 1HA","postcode":"AL2 1HA","sic_codes":[{"code":43290,"description":"Other construction installation"}],"principal_activity":null,"previous_names":[{"name":"MAINLINE ELECTRICAL SERVICES LTD","changed_on":"2009-03-17"}],"warnings":[],"accounts":{"category":"Total Exemption Full","year_end":"30 June","last_made_up_to":"2025-06-30","next_due":"2027-03-31"},"employees":{"count":1,"accounts_date":"2025-06-30"},"financials":[{"financial_date":"2025-06-30","net_assets":268695,"cash":19948,"average_employees":1},{"financial_date":"2024-06-30","net_assets":198842,"cash":832,"average_employees":1},{"financial_date":"2023-06-30","net_assets":201616,"cash":8093},{"financial_date":"2022-06-30","net_assets":205350,"cash":12897},{"financial_date":"2021-06-30","net_assets":210584,"cash":22520}],"officers":{"current":2,"resigned":2,"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":null,"website":null,"links":{"page":"https://www.companiesintheuk.co.uk/ltd/mainline-environmental-systems","people":"https://www.companiesintheuk.co.uk/company/mainline-environmental-systems/people","filing_history":"https://www.companiesintheuk.co.uk/company/mainline-environmental-systems/filing-history","companies_house":"https://find-and-update.company-information.service.gov.uk/company/04017927","financials":"https://www.companiesintheuk.co.uk/company/mainline-environmental-systems/financial","control":"https://www.companiesintheuk.co.uk/company/mainline-environmental-systems/control","charges":"https://www.companiesintheuk.co.uk/company/mainline-environmental-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/mainline-environmental-systems"}