# Guilford Street Laboratories (Guilford Street Laboratories Ltd) Private limited company registered in Liverpool, classed under “Other research and experimental development on natural sciences and engineering”. - Company number: 15199552 - Status: Active - Type: Private limited company - Incorporated: 10 October 2023 - Registered office: Liverpool Science Park, 131 Mount Pleasant, Liverpool, L3 5TF - Location: Liverpool - Activity: Other research and experimental development on natural sciences and engineering ## Latest filed profit Profit after tax in the year to 31 October 2025: **loss of £463k**, from its latest filed accounts. Turnover, net assets, cash, staff, earlier years, ratios and owners are on the page for subscribers. ## Questions people ask ### What does Guilford Street Laboratories do? Private limited company registered in Liverpool, classed under “Other research and experimental development on natural sciences and engineering”. ### How much turnover does Guilford Street Laboratories make? Answered on the page for FirmFacts Pro subscribers: https://firmfacts.co/company/guilford-street-laboratories-15199552 ### Is Guilford Street Laboratories profitable? No: it made a loss after tax of £463k in the year to 31 October 2025, its latest filed accounts. ### How many people work at Guilford Street Laboratories? Answered on the page for FirmFacts Pro subscribers: https://firmfacts.co/company/guilford-street-laboratories-15199552 ### Who runs and owns Guilford Street Laboratories? Its directors are Tomas Baldwin, Edward Alastair Thomas Critchley, Wendy Heywood, Kevin Mills, James Charles Connor Moon and 1 more. Its owners are shown to subscribers. ### Where is Guilford Street Laboratories based? Its registered office is Liverpool Science Park, 131 Mount Pleasant, Liverpool, L3 5TF, in Liverpool. ### When was Guilford Street Laboratories founded? Guilford Street Laboratories Ltd was incorporated on 10 October 2023. ### Is Guilford Street Laboratories still trading? The register lists Guilford Street Laboratories Ltd as active. ## Timeline Recent filings and changes at Companies House. - 2026-10-28: Statement of capital following an allotment of shares on 28 October 2026 · GBP 16,061.36 (and 37 more like it since 14 January 2024) - 2026-08-07: Total exemption full accounts made up to 31 October 2025 - 2026-03-27: Memorandum and Articles of Association (and 1 more like it since 23 June 2025) - 2025-07-24: Resolutions (and 5 more like it since 26 January 2024) - 2025-05-30: Micro company accounts made up to 31 October 2024 - 2024-12-17: Appointment of Mr Edward Alastair Thomas Critchley as a director on 3 December 2024 - 2024-03-10: Notification of a person with significant control statement - 2024-02-26: Cessation of Wendy Heywood as a person with significant control on 14 February 2024 - 2024-02-26: Cessation of Kevin Mills as a person with significant control on 14 February 2024 - 2024-02-26: Cessation of Tomas Baldwin as a person with significant control on 14 February 2024 - 2024-01-29: Change of details for Dr Tomas Baldwin as a person with significant control on 26 January 2024 - 2024-01-29: Change of details for Wendy Heywood as a person with significant control on 26 January 2024 - 2024-01-29: Change of details for Kevin Mills as a person with significant control on 26 January 2024 - 2023-11-20: Registered office address changed from Liverpool Science Park C/O Mycardium Ai Ltd 131 Mount Pleasant Liverpool L3 5TF United Kingdom to Liverpool Science Park 131 Mount Pleasan… - 2023-10-10: Incorporation --- Source: Companies House filings (Open Government Licence v3.0). Figures are as filed; nothing is estimated. Page: https://firmfacts.co/company/guilford-street-laboratories-15199552