- Companies
- Installers
- Purfleet-on-Thames
- Ci Security Ltd
Ci Security Ltd
- Company number
- 17359085
- Incorporated
- 24 Jul 2026
- Registered office
- 8 Ambleside, Purfleet-on-Thames, RM19 1PX
- Nature of business
- Other construction installation; Private security activities
Ci Security Ltd is a newly incorporated private limited company registered in Purfleet-on-Thames, company number 17359085, one of the UK's installation companies (insulation, lifts, shutters and similar). Its next accounts are due at Companies House on 24 April 2028, and its first CT600 is due at HMRC on 23 July 2028.
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 Ci Security Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| I*** C*** | Director | Jul 2026 |
Person with significant control
Where Ci Security Ltd is registered
The registered office is in Purfleet-on-Thames (RM19), in the Thurrock local authority area, East of England. Show RM19 1PX on a map.
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- Thurrock MOT & Service Centre LtdMechanics and garages
- Capelo Pro Build LtdMechanics and garages
- Quality One Electrics LtdSpecialist contractors
- MBV Garage LtdMechanics and garages
What happens if Ci Security 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 24 April 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 25 Apr 2028 to 24 May 2028 | £150 |
| 1 to 3 months late | 25 May 2028 to 24 Jul 2028 | £375 |
| 3 to 6 months late | 25 Jul 2028 to 24 Oct 2028 | £750 |
| More than 6 months late | From 25 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2028 | £200 |
| 3 months late | 31 Oct 2028 | another £200 |
| 6 months late | 31 Jan 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 2029 | 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
- 17359085
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 July 2026
- Registered office
- 8 Ambleside, Purfleet-on-Thames, RM19 1PX
- Nature of business
- Other construction installation (SIC 43290)
Private security activities (SIC 80100) - Year end
- 31 July (accounting reference date)
- Accounts type
- No accounts filed yet
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Purfleet-on-Thames
Other active installation companies (insulation, lifts, shutters and similar) registered in Purfleet-on-Thames.
- Patience-Rhodes Holdings Ltd2026
- Vma Engineering (South) Limited2026
- RG Ventilation Management Ltd2026
- Jcstructures Ltd2026
- All Works Construction Newport Ltd2026
- Conservatory Roof Services Ltd2026
- Jre Partitions and Ceilings Limited2026
- Claire's RPL Ltd2026
All installation companies (insulation, lifts, shutters and similar) in Purfleet-on-Thames · All trades in Purfleet-on-Thames · Installers across the UK
Frequently asked questions
When are Ci Security Ltd's accounts due?
Ci Security Ltd's next accounts are due at Companies House by 24 April 2028 (in 559 days), covering the period to 31 July 2027.
When is Ci Security 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 23 July 2027, due by 23 July 2028, and one for the period to 31 July 2027, due by 31 July 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Ci Security Ltd still trading?
Ci Security 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 Ci Security Ltd do?
Ci Security Ltd is registered under Other construction installation (SIC 43290); Private security activities (SIC 80100).
How old is Ci Security Ltd?
Ci Security Ltd was incorporated on 24 July 2026, less than a year ago.
Who runs Ci Security Ltd?
Ci Security Ltd has 1 active director, the longest-serving appointed in Jul 2026. Their names and service addresses are on the Companies House register.
Who owns Ci Security Ltd?
One person or company has significant control of Ci Security Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Ci Security 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 Ci Security 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.