- Companies
- Civil engineering
- Brentwood
- FS Synergy Ltd
FS Synergy Ltd
- Company number
- 16875112
- Incorporated
- 26 Nov 2025
- Registered office
- Flat 45 the Square, Chatham Way, Brentwood, CM14 4AL
- Nature of business
- Construction of utility projects for electricity and telecommunications; Electrical installation; Other construction installation; Wholesale of electronic and telecommunications equipment and parts
FS Synergy Ltd is a newly incorporated private limited company registered in Brentwood, company number 16875112, one of 39 civil engineering contractors in Brentwood. Its next accounts are due at Companies House on 26 August 2027, and its first CT600 is due at HMRC on 25 November 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Who runs and owns FS Synergy Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| S*** F*** | Director | Nov 2025 |
Person with significant control
Where FS Synergy Ltd is registered
The registered office is in Brentwood (CM14), in the Brentwood local authority area, East of England. Show CM14 4AL on a map.
Other trade companies in CM14
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- Glan Project Services LtdCleaning companies
- Honeybee Design and Interiors LtdInstallers
- Essex Tyres and MOT LimitedMechanics and garages
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- Elite Roofing & Property Care LtdRoofers
What happens if FS Synergy Ltd 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 26 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 27 Aug 2027 to 26 Sep 2027 | £150 |
| 1 to 3 months late | 27 Sep 2027 to 26 Nov 2027 | £375 |
| 3 to 6 months late | 27 Nov 2027 to 26 Feb 2028 | £750 |
| More than 6 months late | From 27 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- 16875112
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 November 2025
- Registered office
- Flat 45 the Square, Chatham Way, Brentwood, CM14 4AL
- Nature of business
- Construction of utility projects for electricity and telecommunications (SIC 42220)
Electrical installation (SIC 43210)
Other construction installation (SIC 43290)
Wholesale of electronic and telecommunications equipment and parts (SIC 46520) - Year end
- 30 November (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Brentwood
Other active civil engineering contractors registered in Brentwood.
- Gravity Civil and Structural Engineering Ltd2025
- HMS (South East) Ltd2026
- John Winters Civil Engineering Ltd2014
- JW Utilities and Infrastructure Ltd2023
- KGK Construction Support Services Ltd2007
- KGK Contractors Ltd2016
- Lucking Utility Services Limited2017
- MF Fibre Ltd2023
All civil engineering contractors in Brentwood · All trades in Brentwood · Civil engineering across the UK
Frequently asked questions
When are FS Synergy Ltd's accounts due?
FS Synergy Ltd's next accounts are due at Companies House by 26 August 2027 (in 317 days), covering the period to 30 November 2026.
When is FS Synergy Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 25 November 2026, due by 25 November 2027, and one for the period to 30 November 2026, due by 30 November 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is FS Synergy Ltd still trading?
FS Synergy Ltd 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 FS Synergy Ltd do?
FS Synergy Ltd is registered under Construction of utility projects for electricity and telecommunications (SIC 42220); Electrical installation (SIC 43210); Other construction installation (SIC 43290); Wholesale of electronic and telecommunications equipment and parts (SIC 46520).
How old is FS Synergy Ltd?
FS Synergy Ltd was incorporated on 26 November 2025, less than a year ago.
Who runs FS Synergy Ltd?
FS Synergy Ltd has 1 active director, the longest-serving appointed in Nov 2025. Their names and service addresses are on the Companies House register.
Who owns FS Synergy Ltd?
One person or company has significant control of FS Synergy Ltd: an individual (owns 75% or more of the shares).
What is the penalty if FS Synergy Ltd 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 FS Synergy Ltd 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.