{"name":"DRAIN LINE SOUTHERN LIMITED","company_number":"04933418","status":"Active","type":"Private Limited Company","incorporated":"2003-10-15","dissolved":null,"registered_office":"Preston Park House, South Road, Brighton, East Sussex, United Kingdom, BN1 6SB","postcode":"BN1 6SB","sic_codes":[{"code":36000,"description":"Water collection, treatment and supply"},{"code":43390,"description":"Other building completion and finishing"}],"principal_activity":"The principal activity of the company in the year under review was that of drainage specialists.","previous_names":[],"warnings":[],"accounts":{"category":"Medium","year_end":"31 March","last_made_up_to":"2025-03-31","next_due":"2026-12-31"},"employees":{"count":255,"accounts_date":"2025-03-31"},"financials":[{"financial_date":"2025-03-31","turnover":22852067,"profit_loss":1190709,"net_assets":2391951,"cash":1651689,"average_employees":255},{"financial_date":"2024-03-31","turnover":16984690,"profit_loss":1703352,"net_assets":2243931,"cash":2217699,"average_employees":189},{"financial_date":"2023-03-31","turnover":12255312,"net_assets":1502934,"cash":1011919},{"financial_date":"2022-03-31","turnover":10383456,"net_assets":1274875,"cash":830196},{"financial_date":"2021-03-31","net_assets":918582,"cash":892567}],"officers":{"current":7,"resigned":6,"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":1,"outstanding":1},"gazette_notices":[],"insolvency_outcome":null,"ai_summary":"Drain Line Southern has successfully repositioned itself from a regional drainage contractor into a multi-service highways infrastructure provider, tripling turnover since FY22 to £22.9m on the back of long-term local-authority and tier-1 frameworks. The strategic imperative has now shifted from growth to monetisation: gross margin has fallen 680bps to 14.1% and revenue per employee is flat, meaning the platform is built but not yet yielding operating leverage. Priority should go to proving mobilisation costs are transient, diversifying an 85%-concentrated customer base through rail and contracted reactive maintenance, and tightening working-capital discipline before the next phase of expansion.","website":"https://www.drainline.co.uk/","links":{"page":"https://www.companiesintheuk.co.uk/ltd/drain-line-southern","people":"https://www.companiesintheuk.co.uk/company/drain-line-southern/people","filing_history":"https://www.companiesintheuk.co.uk/company/drain-line-southern/filing-history","companies_house":"https://find-and-update.company-information.service.gov.uk/company/04933418","financials":"https://www.companiesintheuk.co.uk/company/drain-line-southern/financial","control":"https://www.companiesintheuk.co.uk/company/drain-line-southern/control","charges":"https://www.companiesintheuk.co.uk/company/drain-line-southern/charges","ai_analysis":"https://www.companiesintheuk.co.uk/company/drain-line-southern/analysis"},"source":"CompaniesInTheUK, from Companies House, The Gazette and other public registers (see /support/about). Cite as: CompaniesInTheUK, https://www.companiesintheuk.co.uk/ltd/drain-line-southern"}