CRITICAL SYSTEMS ENGINEERING LIMITED
Active Company number 04457277
CRITICAL SYSTEMS ENGINEERING LIMITED (company number 04457277) is a private limited company incorporated on 10 June 2002. Its status on the Companies House register is Active. Its registered office is in Little Bookham, KT23 4DY. Its nature of business (SIC 2007) is other professional, scientific and technical activities n.e.c. (74909). Its latest accounts we hold, for the period ending 30 September 2025, report net assets of £181k.
Source: Companies House register, as at 29 September 2026. How to cite this page
Information only, not advice. Register details and accounts figures are the company's own filings, shown as filed: CompanyStack does not audit or verify them and accepts no responsibility for decisions made on them. Check important facts at Companies House.
Company Report on CRITICAL SYSTEMS ENGINEERING LIMITED (PDF)
The register, the accounts and the people behind the company in one PDF, for your own business use.
- Summary and Health Score, with the reasons behind the score
- Red flags and what changed in the last 12 months
- Key figures against the year before, and filing deadlines
- Financials ledger: up to 10 years of filed accounts
- Who runs and owns it: directors, secretaries and PSCs
- Charges, filing history and methodology
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Company details
- Company number
- 04457277
- Status
- Active
- Company type
- Private Limited Company
- Incorporated
- 10 June 2002
- Country of origin
- United Kingdom
- Registered office
- KINGSWAY
RECTORY LANE
LITTLE BOOKHAM
SURREY
KT23 4DY
Nature of business (SIC 2007)
Accounts and confirmation statement
- Accounting reference date
- 29 September
- Accounts category
- MICRO ENTITY
- Accounts last made up to
- 30 September 2025
- Next accounts due
- 29 June 2027
- Confirmation statement last made up to
- 10 June 2026
- Next confirmation statement due
- 24 June 2027
Financial summary
| Period ending | 30 September 2025 | 30 September 2024 | 30 September 2023 | 30 September 2022 | 30 September 2021 | 30 September 2020 | 30 September 2019 | 30 September 2018 | 30 September 2017 | 30 September 2016 | 30 September 2015 | 30 September 2014 | 30 September 2013 | 30 September 2012 | 30 September 2011 | 30 September 2010 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Total assets | £74k | £81k | £67k | −£95k | −£71k | −£27k | −£120k | −£75k | — | £204k | £113k | £9,107 | £25k | £24k | £24k | £22k |
| Cash at bank | Not filed | — | — | — | — | — | — | — | — | £156k | £50k | £8,325 | £16k | £16k | £16k | £14k |
| Current liabilities | −£108k | −£86k | −£48k | −£195k | −£171k | −£162k | −£122k | −£89k | — | £134k | £75k | £41k | £466 | £466 | £466 | £466 |
| Net current assets | — | — | — | — | — | — | — | — | — | — | — | — | £23k | £23k | £23k | £21k |
| Total liabilities | — | — | — | — | — | — | — | — | — | £134k | £75k | £41k | £48k | £48k | £48k | £46k |
| Net assets / (liabilities) | £181k | £166k | £114k | £99k | £97k | £134k | £525 | £14k | — | £70k | £38k | (£31k) | (£24k) | (£24k) | (£24k) | (£23k) |
| Employees | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Not filed: the accounts do not give the figure. —: no figure read from the filing.
- Year to 30 September 2025: cash not filed. Micro-entity accounts give current assets as one total, without debtors, stock or cash.
Figures read from filings at Companies House (ixbrl) and checked; see how we read them. Small-company accounts often omit turnover and profit. Spotted an error? Tell us.
Control, officers and charges
- Persons with significant control
- 1 current (1 including ceased)
Questions about CRITICAL SYSTEMS ENGINEERING LIMITED
Is CRITICAL SYSTEMS ENGINEERING LIMITED active?
Yes. The Companies House register shows the company's status as “Active”. (Companies House register, as at 29 September 2026.)
When was CRITICAL SYSTEMS ENGINEERING LIMITED incorporated?
CRITICAL SYSTEMS ENGINEERING LIMITED was incorporated on 10 June 2002, according to the Companies House register. (Companies House register, as at 29 September 2026.)
Where is CRITICAL SYSTEMS ENGINEERING LIMITED registered?
Its registered office is in Little Bookham, KT23 4DY. (Companies House register, as at 29 September 2026.)
Who controls CRITICAL SYSTEMS ENGINEERING LIMITED?
The register lists 1 current person with significant control (1 including those who have ceased). The register shows control, not a list of shareholders. Individuals are named at https://find-and-update.company-information.service.gov.uk/company/04457277/persons-with-significant-control. (Companies House register, as at 29 September 2026.) Who owns a UK limited company: shareholders, PSCs and what the register shows
When are CRITICAL SYSTEMS ENGINEERING LIMITED's next accounts due?
The register shows the next accounts as due by 29 June 2027. Its latest accounts on the register were made up to 30 September 2025. (Companies House register, as at 29 September 2026.)
Does CRITICAL SYSTEMS ENGINEERING LIMITED file dormant accounts?
Not in its latest accounts. The register gives their category as “Micro-entity accounts”, made up to 30 September 2025. (Companies House register, as at 29 September 2026.) What a dormant company is and what it must file
Is CRITICAL SYSTEMS ENGINEERING LIMITED on a sanctions list?
No match for this company's name on the sanctions lists CompanyStack screens (UK, EU, OFAC SDN, OFAC non-SDN, Canada, Australia, New Zealand, Japan, France, US CSL) as at 6 October 2026. A name screen is not legal clearance.
Related companies
More other professional, scientific and technical activities n.e.c. companies
- HUDSON CONTRACT LIMITED
- THE.TEAM: SME MANAGEMENT EMEA LIMITED
- HUDSON CIS (GB) LIMITED
- IROBOT UK LTD.
- SODEXO LIVE UK LIMITED
- ASHLEY CHARTERING LIMITED
- ALTEN LTD
- SG UMBRELLA LIMITED
Industry overview: 58,639 active companies in SIC 74909
Other active companies registered at KT23 4DY
Related guides
Companies with similar names
Other companies, LLPs and partnerships on the Companies House register whose names begin “CRITICAL SYSTEMS”. Each is a separate legal entity from CRITICAL SYSTEMS ENGINEERING LIMITED: check the registered number before relying on a name. Register data as at 29 September 2026.
- CRITICAL SYSTEMS LTD (Company, Active, Guildford; 06951100)
- CRITICAL SYSTEMS MANAGEMENT LTD (Company, Active, Newcastle; 14007294)
About CompanyStack
CompanyStack turns Companies House records into answers you can act on: who a company is, who runs and owns it, whether it keeps up with its filings and how its finances are moving. Every figure traces back to a public record, and we say when a record is missing.
Sources for company pages: Companies House (register, accounts, officers, PSCs, charges and filings), The Gazette (company insolvency notices only), the ONS Postcode Directory, official sanctions lists, including those of the UK (with UN designations), the EU, the US, Canada, Australia, New Zealand and France, and copies taken in April 2026 of the ICO register, the Charity Commission, CQC, Ofsted, Food Standards Agency and Environment Agency registers. Contains public sector information licensed under the Open Government Licence v3.0. CompanyStack is not affiliated with or endorsed by Companies House.
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Use this data
Official register entry: CRITICAL SYSTEMS ENGINEERING LIMITED on Companies House.
Developers can fetch this profile as JSON with GET https://api.companystack.co.uk/company/04457277 — see the API documentation and pricing.