{"name":"POLYSEAM LIMITED","company_number":"02839491","status":"Active","type":"Private Limited Company","incorporated":"1993-07-26","dissolved":null,"registered_office":"15 St. Andrews Road, Huddersfield, England, HD1 6SB","postcode":"HD1 6SB","sic_codes":[{"code":22290,"description":"Manufacture of other plastic products"},{"code":23640,"description":"Manufacture of mortars"},{"code":23990,"description":"Manufacture of other non-metallic mineral products not elsewhere classified"},{"code":32990,"description":"Other manufacturing not elsewhere classified"}],"principal_activity":"The principal activity of the company continued to be that of manufacturing and supplying sealants.","previous_names":[{"name":"DEALGRADE LIMITED","changed_on":"1994-06-21"}],"warnings":[],"accounts":{"category":"Full","year_end":"31 December","last_made_up_to":"2025-12-31","next_due":"2027-09-30"},"employees":{"count":138,"accounts_date":"2025-12-31"},"financials":[{"financial_date":"2025-12-31","profit_loss":951837,"net_assets":6965107,"cash":692863,"average_employees":138},{"financial_date":"2024-12-31","profit_loss":1694872,"net_assets":7814370,"cash":1657911,"average_employees":133},{"financial_date":"2023-12-31","profit_loss":644134,"net_assets":6119498,"cash":499202,"average_employees":140},{"financial_date":"2022-12-31","net_assets":5475364,"cash":1578452},{"financial_date":"2021-12-31","net_assets":4456732,"cash":884587}],"officers":{"current":7,"resigned":14,"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":6,"outstanding":4},"gazette_notices":[],"insolvency_outcome":null,"ai_summary":"Polyseam Limited represents one of the UK manufacturing sector's more compelling growth stories, having transformed from near-zero net assets in 2012 to a £24.2m-turnover business with £7.8m net assets by 2024, driven by strategic positioning in the structurally advantaged passive fire protection market. The company's certified product portfolio under the Protecta brand provides defensible competitive positioning against both commodity sealant manufacturers and larger multinational PFP players, though import dependency on China and single-site manufacturing concentration remain material vulnerabilities. With ongoing capital investment in automation, expanding R&D into coatings and insulation markets, and a regulatory tailwind that shows no sign of abating, Polyseam is well-placed to continue outperforming sector growth norms – provided it can manage supply chain risks and maintain the cash generation needed to fund its ambitious expansion trajectory.","website":"https://www.polyseam.com/","links":{"page":"https://www.companiesintheuk.co.uk/ltd/polyseam","people":"https://www.companiesintheuk.co.uk/company/polyseam/people","filing_history":"https://www.companiesintheuk.co.uk/company/polyseam/filing-history","companies_house":"https://find-and-update.company-information.service.gov.uk/company/02839491","financials":"https://www.companiesintheuk.co.uk/company/polyseam/financial","control":"https://www.companiesintheuk.co.uk/company/polyseam/control","charges":"https://www.companiesintheuk.co.uk/company/polyseam/charges","ai_analysis":"https://www.companiesintheuk.co.uk/company/polyseam/analysis"},"source":"CompaniesInTheUK, from Companies House, The Gazette and other public registers (see /support/about). Cite as: CompaniesInTheUK, https://www.companiesintheuk.co.uk/ltd/polyseam"}