{"name":"COLAS RAIL LIMITED","company_number":"02995525","status":"Active","type":"Private Limited Company","incorporated":"1994-11-28","dissolved":null,"registered_office":"25 Victoria Street, London, England, SW1H 0EX","postcode":"SW1H 0EX","sic_codes":[{"code":42120,"description":"Construction of railways and underground railways"}],"principal_activity":null,"previous_names":[{"name":"AMEC SPIE RAIL (UK) LIMITED","changed_on":"2007-06-28"},{"name":"AMEC RAIL LIMITED","changed_on":"2003-07-23"},{"name":"SOUTH WEST INFRASTRUCTURE MAINTENANCE COMPANY LIMITED","changed_on":"1996-09-19"}],"warnings":[],"accounts":{"category":"Full","year_end":"31 December","last_made_up_to":"2025-12-31","next_due":"2027-09-30"},"employees":null,"financials":[],"officers":{"current":2,"resigned":40,"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":[{"date":"2026-08-04","kind":"other"}],"insolvency_outcome":null,"ai_summary":"Colas Rail Limited operates as a well-capitalized, Tier 1 infrastructure contractor in the highly regulated UK rail sector, leveraging the financial backing and technical expertise of its ultimate parent, the Bouygues Group. While the broader industry faces headwinds from inflation and the transition to a new Network Rail Control Period, Colas Rail's integrated design-build-maintain model and robust corporate lineage position it favorably to capture emerging opportunities in digital signalling and rail decarbonization. The company's evolution from a regional maintenance provider to a national infrastructure leader underscores its adaptability and competitive resilience in a consolidating market.","website":"https://colasrail.co.uk/","links":{"page":"https://www.companiesintheuk.co.uk/ltd/colas-rail","people":"https://www.companiesintheuk.co.uk/company/colas-rail/people","filing_history":"https://www.companiesintheuk.co.uk/company/colas-rail/filing-history","companies_house":"https://find-and-update.company-information.service.gov.uk/company/02995525","gazette":"https://www.companiesintheuk.co.uk/company/colas-rail/gazette","control":"https://www.companiesintheuk.co.uk/company/colas-rail/control","charges":"https://www.companiesintheuk.co.uk/company/colas-rail/charges","pay_gap":"https://www.companiesintheuk.co.uk/company/colas-rail/pay-gap","ai_analysis":"https://www.companiesintheuk.co.uk/company/colas-rail/analysis"},"source":"CompaniesInTheUK, from Companies House, The Gazette and other public registers (see /support/about). Cite as: CompaniesInTheUK, https://www.companiesintheuk.co.uk/ltd/colas-rail"}