- Company number
- 15028945
- Incorporated
- 25 Jul 20233 years trading
- Registered office
- 167-169 Great Portland Street, 5TH Floor, London, W1W 5PF
- Nature of business
- Construction of commercial buildings
Cygnus Contracting Limited is a 3-year-old private limited company registered in London, company number 15028945, one of 12,075 building contractors in London. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £91K (+537.5%) on the year before, to £108K.
- Current assets of £424K against £315K owed within a year: 1.3 times cover.
- 3 employees on average, down from 4 the year before.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £108K | £216K | £424K | £315K | 3 |
| 31 Dec 2024 | £17K | £65K | £164K | £149K | 4 |
Public contracts won
Cygnus Contracting Limited has 2 public sector contract awards on record; the ones with their own published value total £586K (2026). Source: Contracts Finder and Find a Tender award notices. 1 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Cornwall Council2 awards
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Cornwall Council | St Day & Carharrack Community School - SEND Programme | £354K | 19 Aug 2026 |
| Cornwall Council | School Backlog Maintenance 2026 Group SCC02 | £233K | 23 Jun 2026 |
Where Cygnus Contracting Limited is registered
The registered office is in London (W1W), in the Westminster local authority area, London. Show W1W 5PF on a map.
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Shared registered office
1,494 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Cygnus Contracting Limited files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 30 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 15028945
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 July 2023 (3 years ago)
- Registered office
- 167-169 Great Portland Street, 5TH Floor, London, W1W 5PF
- Nature of business
- Construction of commercial buildings (SIC 41201)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 23 July 2026
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in London
Other active building contractors registered in London.
- Cynar Ltd2023
- Cynick Ltd2020
- Czaah Group Ltd2026
- Czarpaul Ltd2022
- D & A Development Group Limited2022
- D & A Lifts Ltd2016
- D & N Sanseishans Ltd2020
- D & P Maintenance Services Ltd2013
All building contractors in London · All trades in London · Builders across the UK
Frequently asked questions
When are Cygnus Contracting Limited's accounts due?
Cygnus Contracting Limited's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is Cygnus Contracting Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Cygnus Contracting Limited still trading?
Cygnus Contracting Limited is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Cygnus Contracting Limited do?
Cygnus Contracting Limited is registered under Construction of commercial buildings (SIC 41201).
How old is Cygnus Contracting Limited?
Cygnus Contracting Limited was incorporated on 25 July 2023, 3 years ago.
Has Cygnus Contracting Limited won public sector contracts?
Yes. Cygnus Contracting Limited has 2 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £586K), most recently from Cornwall Council.
What is the penalty if Cygnus Contracting Limited files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Cygnus Contracting Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.