{
  "company_number": "09284825",
  "name": "Sizewell C Limited",
  "url": "/company/09284825",
  "status": "Active",
  "is_active": true,
  "company_type": "Private Limited Company",
  "incorporated_on": "2014-10-28",
  "dissolved_on": null,
  "sic_codes": [
    {
      "code": "35110",
      "description": "Production of electricity",
      "section": "D",
      "section_name": "Electricity, gas, steam and air conditioning supply",
      "url": "/sic/35110"
    }
  ],
  "registered_address": {
    "id": 505126,
    "url": "/address/505126",
    "line1": "25 COPTHALL AVENUE",
    "line2": "",
    "post_town": "LONDON",
    "county": "",
    "country": "UNITED KINGDOM",
    "postcode": "EC2R 7BP"
  },
  "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/09284825",
  "previous_names": [
    {
      "name": "NNB Generation Company (Szc) Ltd",
      "ceased_on": "2023-06-12"
    }
  ],
  "care_of": "",
  "po_box": "",
  "country_of_origin": "United Kingdom",
  "accounts": {
    "next_due": "2026-12-31",
    "last_made_up": "2025-03-31",
    "category": "FULL",
    "filings": [],
    "pdf_only_filings": [
      {
        "made_up_date": "2025-03-31",
        "filing_date": "2025-10-17",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/09284825/accounts/2025-03-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/09284825/filing-history/MzQ4NTA2MzA5M2FkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2024-03-31",
        "filing_date": "2025-01-10",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/09284825/accounts/2024-03-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/09284825/filing-history/MzQ1MDYwMzQxMGFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2023-03-31",
        "filing_date": "2023-08-18",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/09284825/accounts/2023-03-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/09284825/filing-history/MzM4OTk3MDMyN2FkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2021-12-31",
        "filing_date": "2022-07-25",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/09284825/accounts/2021-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/09284825/filing-history/MzM0NjQ5OTk1MGFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2020-12-31",
        "filing_date": "2021-07-08",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/09284825/accounts/2020-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/09284825/filing-history/MzMwNjI2NjM5M2FkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2019-12-31",
        "filing_date": "2020-07-09",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/09284825/accounts/2019-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/09284825/filing-history/MzI3MjY1MzUzMGFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2018-12-31",
        "filing_date": "2019-07-04",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/09284825/accounts/2018-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/09284825/filing-history/MzIzODUwNzI3N2FkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2017-12-31",
        "filing_date": "2018-06-06",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/09284825/accounts/2017-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/09284825/filing-history/MzIwNjc1ODQzOWFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2016-12-31",
        "filing_date": "2017-09-08",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/09284825/accounts/2016-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/09284825/filing-history/MzE4NDg4MDIzNmFkaXF6a2N4/document?format=pdf&download=0"
      },
      {
        "made_up_date": "2015-12-31",
        "filing_date": "2016-08-04",
        "form_type": "AA",
        "description": "accounts-with-accounts-type-full",
        "paper_filed": true,
        "pdf_url": "/company/09284825/accounts/2015-12-31.pdf",
        "companies_house_url": "https://find-and-update.company-information.service.gov.uk/company/09284825/filing-history/MzE1NDE4MjU3NWFkaXF6a2N4/document?format=pdf&download=0"
      }
    ],
    "filing_history_url": "https://find-and-update.company-information.service.gov.uk/company/09284825/filing-history"
  },
  "confirmation_statement": {
    "next_due": "2027-06-01",
    "last_made_up": "2026-05-18"
  },
  "officers": [],
  "psc": [
    {
      "name": "Sizewell C (Holding) Limited",
      "kind": "corporate-entity-person-with-significant-control",
      "person_url": null,
      "controlling_company_url": "/company/09284751",
      "natures_of_control": [
        "ownership-of-shares-75-to-100-percent",
        "voting-rights-75-to-100-percent",
        "right-to-appoint-and-remove-directors"
      ],
      "notified_on": "2016-04-06",
      "ceased_on": "2025-09-17",
      "nationality": "",
      "country_of_residence": "",
      "source": "snapshot"
    },
    {
      "name": "Sizewell C (Holdco) Limited",
      "kind": "corporate-entity-person-with-significant-control",
      "person_url": null,
      "controlling_company_url": "/company/09284751",
      "natures_of_control": [
        "significant-influence-or-control"
      ],
      "notified_on": "2025-11-04",
      "ceased_on": null,
      "nationality": "",
      "country_of_residence": "",
      "source": "snapshot"
    },
    {
      "name": "Edf Energy Holdings Limited",
      "kind": "corporate-entity-person-with-significant-control",
      "person_url": null,
      "controlling_company_url": "/company/06930266",
      "natures_of_control": [
        "significant-influence-or-control"
      ],
      "notified_on": "2025-11-04",
      "ceased_on": null,
      "nationality": "",
      "country_of_residence": "",
      "source": "snapshot"
    },
    {
      "name": "Sizewell C (Pledgeco) Limited",
      "kind": "corporate-entity-person-with-significant-control",
      "person_url": null,
      "controlling_company_url": "/company/16480404",
      "natures_of_control": [
        "ownership-of-shares-75-to-100-percent",
        "voting-rights-75-to-100-percent"
      ],
      "notified_on": "2025-09-17",
      "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": "2026-08-26T16:26:30.358260+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."
}