- Companies
- Installers
- Romford
- Participant Line Company Ltd
Participant Line Company Ltd
- Company number
- 16307313
- Incorporated
- 11 Mar 20251 year trading
- Registered office
- 37 Charlbury Crescent, Romford, RM3 8YR
- Nature of business
- Other construction installation
Participant Line Company Ltd is a 1-year-old private limited company registered in Romford, company number 16307313, one of 143 installation companies (insulation, lifts, shutters and similar) in Romford. Its next accounts are due at Companies House on 11 December 2026, and its first CT600 is due at HMRC on 10 March 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 Participant Line Company Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| N*** C*** | Director | May 2025 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| A*** Z*** | Director | Mar 2025 | May 2025 |
Person with significant control
Where Participant Line Company Ltd is registered
The registered office is in Romford (RM3), in the Havering local authority area, London. Show RM3 8YR on a map.
Other trade companies in RM3
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- Emirate Fire and Security (Passive) LimitedInstallers
- Gamma Lifts LimitedInstallers
- Acc Mep LtdInstallers
- Fav Construction LimitedInstallers
- Zelda Cleaning Services LtdCleaning companies
- Hutton Heating and Air Conditioning LtdPlumbers and heating engineers
- Perfect Build Management LtdSpecialist contractors
What happens if Participant Line Company 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 11 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 12 Dec 2026 to 11 Jan 2027 | £150 |
| 1 to 3 months late | 12 Jan 2027 to 11 Mar 2027 | £375 |
| 3 to 6 months late | 12 Mar 2027 to 11 Jun 2027 | £750 |
| More than 6 months late | From 12 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 16307313
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 March 2025 (1 year ago)
- Registered office
- 37 Charlbury Crescent, Romford, RM3 8YR
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 10 March 2026
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 Romford
Other active installation companies (insulation, lifts, shutters and similar) registered in Romford.
- Peak Access Maintenance Solutions Limited2019
- Phiresafe Ltd2025
- Pillar and Beam Ltd2026
- Platinum Catering Installations Ltd2021
- Purbeck Management Limited2021
- Q Projects Ltd2014
- Quick Service Carpet and Flooring Ltd2025
- R&D Sealant Contractors Ltd2019
All installation companies (insulation, lifts, shutters and similar) in Romford · All trades in Romford · Installers across the UK
Frequently asked questions
When are Participant Line Company Ltd's accounts due?
Participant Line Company Ltd's next accounts are due at Companies House by 11 December 2026 (in 59 days), covering the period to 31 March 2026.
When is Participant Line Company 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 10 March 2026, due by 10 March 2027, and one for the period to 31 March 2026, due by 31 March 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Participant Line Company Ltd still trading?
Participant Line Company 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 Participant Line Company Ltd do?
Participant Line Company Ltd is registered under Other construction installation (SIC 43290).
How old is Participant Line Company Ltd?
Participant Line Company Ltd was incorporated on 11 March 2025, 1 year ago.
Who runs Participant Line Company Ltd?
Participant Line Company Ltd has 1 active director, the longest-serving appointed in May 2025. Their names and service addresses are on the Companies House register.
Who owns Participant Line Company Ltd?
One person or company has significant control of Participant Line Company Ltd: an individual (owns 75% or more of the shares).
What is the penalty if Participant Line Company 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 Participant Line Company 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.