{
  "company_number": "00953609",
  "name": "Critical Maritime Systems & Support Limited",
  "url": "/company/00953609",
  "status": "Active",
  "is_active": true,
  "company_type": "Private Limited Company",
  "incorporated_on": "1969-05-06",
  "dissolved_on": null,
  "sic_codes": [
    {
      "code": "28990",
      "description": "Manufacture of other special-purpose machinery n.e.c.",
      "section": "C",
      "section_name": "Manufacturing",
      "url": "/sic/28990"
    }
  ],
  "registered_address": {
    "id": 281953,
    "url": "/address/281953",
    "line1": "HARSTON MILL ROYSTON ROAD",
    "line2": "HARSTON",
    "post_town": "CAMBRIDGE",
    "county": "",
    "country": "ENGLAND",
    "postcode": "CB22 7GG"
  },
  "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609",
  "previous_names": [
    {
      "name": "Wellman Cjb Limited",
      "ceased_on": "2001-03-16"
    },
    {
      "name": "CJB Developments Limited",
      "ceased_on": "1997-03-17"
    },
    {
      "name": "Atmosphere Control International Limited",
      "ceased_on": "2016-05-27"
    },
    {
      "name": "TPG Maritime Limited",
      "ceased_on": "2023-07-17"
    },
    {
      "name": "Wellman Defence Limited",
      "ceased_on": "2012-05-03"
    }
  ],
  "care_of": "",
  "po_box": "",
  "country_of_origin": "United Kingdom",
  "accounts": {
    "next_due": "2026-09-30",
    "last_made_up": "2024-12-31",
    "category": "FULL",
    "filings": [],
    "pdf_only_filings": [
      {
        "made_up_date": "2024-12-31",
        "filing_date": "2025-05-27",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2024-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MzQ2Nzk0OTM1NGFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2023-12-31",
        "filing_date": "2024-06-25",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2023-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MzQyNjE4NDQyOWFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2022-12-31",
        "filing_date": "2023-09-01",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2022-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MzM5MTA4MzkyOGFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2021-12-31",
        "filing_date": "2022-10-03",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2021-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MzM1MzgzMTIyMmFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2020-12-31",
        "filing_date": "2022-01-06",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2020-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MzMyNTQ3NDQ5MWFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2019-12-31",
        "filing_date": "2020-11-04",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2019-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MzI4MjM0ODI4MGFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2018-12-31",
        "filing_date": "2019-06-14",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2018-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MzIzNjg3MDc4N2FkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2017-12-31",
        "filing_date": "2018-10-06",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2017-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MzIxNjIwNTg3OWFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2016-12-31",
        "filing_date": "2017-09-25",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2016-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MzE4NjEyMTgxOGFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2015-12-31",
        "filing_date": "2016-06-25",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2015-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MzE1MTMzMTIwMWFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2014-12-31",
        "filing_date": "2015-06-30",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2014-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MzEyNjAwODY0NWFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2013-12-31",
        "filing_date": "2014-05-20",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2013-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MzEwMDMzMjM3NGFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2012-12-31",
        "filing_date": "2013-09-30",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2012-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MzA4NjA0ODYwM2FkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2011-12-31",
        "filing_date": "2012-03-09",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2011-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MzA1Mzg1MTY2M2FkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2010-12-31",
        "filing_date": "2011-10-05",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2010-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MzA0NDkzMjM2MmFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2009-12-31",
        "filing_date": "2010-09-24",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2009-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MzAyMzk1OTg4MGFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2008-12-31",
        "filing_date": "2009-04-24",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2008-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MjAzMTQxMTEwOWFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2007-12-31",
        "filing_date": "2008-04-28",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2007-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MjAwNDI0OTE2OWFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2006-12-31",
        "filing_date": "2007-10-16",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2006-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MTg2NTg1MzQxYWRpcXprY3g/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2005-12-31",
        "filing_date": "2006-07-05",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2005-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MTYzMzk3MjE4YWRpcXprY3g/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2005-03-31",
        "filing_date": "2005-12-12",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2005-03-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/NDgyODQ3NzlhZGlxemtjeA/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2004-03-31",
        "filing_date": "2004-12-11",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2004-03-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/NDAyNTU4NTlhZGlxemtjeA/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2003-03-31",
        "filing_date": "2004-01-13",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2003-03-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MTUxMTI0NTUxYWRpcXprY3g/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2002-03-31",
        "filing_date": "2002-10-22",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2002-03-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MTI5MDM2NjkxYWRpcXprY3g/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2001-03-31",
        "filing_date": "2001-10-05",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2001-03-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/ODEzMzU2NDNhZGlxemtjeA/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2000-03-31",
        "filing_date": "2000-11-27",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/2000-03-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/NTIzMzY4MTBhZGlxemtjeA/document?format=pdf&download=0"
      },
      {
        "made_up_date": "1999-03-31",
        "filing_date": "1999-12-05",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/1999-03-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/NDk3Nzk3ODdhZGlxemtjeA/document?format=pdf&download=0"
      },
      {
        "made_up_date": "1998-03-31",
        "filing_date": "1999-02-01",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/1998-03-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/ODAyMDI5MjVhZGlxemtjeA/document?format=pdf&download=0"
      },
      {
        "made_up_date": "1996-12-31",
        "filing_date": "1997-04-29",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/1996-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MzU2NTIzNjVhZGlxemtjeA/document?format=pdf&download=0"
      },
      {
        "made_up_date": "1995-09-30",
        "filing_date": "1995-12-28",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/00953609/accounts/1995-09-30.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MTU2Mzk1MThhZGlxemtjeA/document?format=pdf&download=0"
      },
      {
        "made_up_date": "1994-09-30",
        "filing_date": "1995-01-18",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": null,
        "pdf_url": "/company/00953609/accounts/1994-09-30.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/Mzg2MTAxNjZhZGlxemtjeA/document?format=pdf&download=0"
      },
      {
        "made_up_date": "1993-09-30",
        "filing_date": "1994-02-03",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": null,
        "pdf_url": "/company/00953609/accounts/1993-09-30.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MTUxMzM4NzQwYWRpcXprY3g/document?format=pdf&download=0"
      },
      {
        "made_up_date": "1992-09-30",
        "filing_date": "1993-03-18",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": null,
        "pdf_url": "/company/00953609/accounts/1992-09-30.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MTUzMjE2NDcxYWRpcXprY3g/document?format=pdf&download=0"
      },
      {
        "made_up_date": "1991-09-30",
        "filing_date": "1992-03-12",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": null,
        "pdf_url": "/company/00953609/accounts/1991-09-30.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MjE0MDI3MzRhZGlxemtjeA/document?format=pdf&download=0"
      },
      {
        "made_up_date": "1990-09-30",
        "filing_date": "1991-04-06",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": null,
        "pdf_url": "/company/00953609/accounts/1990-09-30.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/OTIzNDcxOThhZGlxemtjeA/document?format=pdf&download=0"
      },
      {
        "made_up_date": "1989-09-30",
        "filing_date": "1990-06-13",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": null,
        "pdf_url": "/company/00953609/accounts/1989-09-30.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MTA2NjMzNTFhZGlxemtjeA/document?format=pdf&download=0"
      },
      {
        "made_up_date": "1988-09-30",
        "filing_date": "1989-07-10",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": null,
        "pdf_url": "/company/00953609/accounts/1988-09-30.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/OTUzMzIzOTdhZGlxemtjeA/document?format=pdf&download=0"
      },
      {
        "made_up_date": "1987-09-30",
        "filing_date": "1988-05-23",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": null,
        "pdf_url": "/company/00953609/accounts/1987-09-30.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MTE3Mzc3NDQ3YWRpcXprY3g/document?format=pdf&download=0"
      },
      {
        "made_up_date": "1986-09-30",
        "filing_date": "1987-03-26",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": null,
        "pdf_url": "/company/00953609/accounts/1986-09-30.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MTEyMjg0MzE2YWRpcXprY3g/document?format=pdf&download=0"
      },
      {
        "made_up_date": "1986-03-31",
        "filing_date": "1986-08-28",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": null,
        "pdf_url": "/company/00953609/accounts/1986-03-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history/MTA3OTg2MTkxYWRpcXprY3g/document?format=pdf&download=0"
      }
    ],
    "filing_history_url": "https://find-and-update.company-information.service.gov.uk/company/00953609/filing-history"
  },
  "confirmation_statement": {
    "next_due": "2027-05-15",
    "last_made_up": "2026-05-01"
  },
  "officers": [],
  "psc": [
    {
      "name": "Tp Group Limited",
      "kind": "corporate-entity-person-with-significant-control",
      "person_url": null,
      "controlling_company_url": null,
      "natures_of_control": [
        "ownership-of-shares-75-to-100-percent"
      ],
      "notified_on": "2016-06-14",
      "ceased_on": "2025-09-11",
      "nationality": "",
      "country_of_residence": "",
      "source": "snapshot"
    },
    {
      "name": "Science Group Plc",
      "kind": "corporate-entity-person-with-significant-control",
      "person_url": null,
      "controlling_company_url": "/company/06536543",
      "natures_of_control": [
        "ownership-of-shares-75-to-100-percent",
        "voting-rights-75-to-100-percent",
        "right-to-appoint-and-remove-directors"
      ],
      "notified_on": "2025-09-11",
      "ceased_on": null,
      "nationality": "",
      "country_of_residence": "",
      "source": "snapshot"
    }
  ],
  "external_links": [],
  "provenance": {
    "source": "snapshot",
    "first_seen_at": "2026-07-05T12:35:35.811816+00:00",
    "last_seen_snapshot": "2026-08-01",
    "retrieved_at": "2026-08-29T20:53:28.531633+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: Companies House."
}