- Companies
- Electricians
- Slough
- Tri Management Limited
Tri Management Limited
- Company number
- 04061381
- Incorporated
- 29 Aug 200026 years trading
- Registered office
- 4 Park Parade, Farnham Royal, Slough, Buckinghamshire, SL2 3AU
- Nature of business
- Electrical installation
Tri Management Limited is a 26-year-old private limited company registered in Slough, company number 04061381, one of 101 electrical contractors in Slough. 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 £720K (+33.1%) on the year before, to £2.9M.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £5M against £2.1M owed within a year: 2.4 times cover.
- 48 employees on average, up from 42 the year before.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £2.9M | £1.4M | £5M | £2.1M | 48 |
| 31 Dec 2024 | £2.2M | £816K | £2.8M | £840K | 42 |
| 31 Dec 2023 | £2.3M | £1M | £3.1M | £841K | 38 |
| 31 Dec 2022 | £2.2M | £991K | £3.1M | £944K | 36 |
| 31 Dec 2021 | £1.7M | £562K | £2.5M | £755K | 36 |
| 31 Dec 2020 | £2M | £942K | £2.9M | £930K | 36 |
| 31 Dec 2019 | £1.6M | £322K | £2.4M | £853K | 39 |
| 31 Dec 2018 | £2M | £789K | £2.9M | £958K | 39 |
| 31 Dec 2017 | £2M | £1.3M | £3.1M | £1.1M | 40 |
| 31 Dec 2016 | £2.3M | £825K | £3.1M | £868K | 38 |
Where Tri Management Limited is registered
The registered office is in Slough (SL2), in the Buckinghamshire local authority area, South East. Show SL2 3AU on a map.
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What happens if Tri Management 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
- 04061381
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 August 2000 (26 years ago)
- Registered office
- 4 Park Parade, Farnham Royal, Slough, Buckinghamshire, SL2 3AU
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 28 August 2026
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Slough
Other active electrical contractors registered in Slough.
- Trust Line Electrics Ltd2026
- Ultra Tech Solutions UK Ltd2015
- Uptempo Limited2013
- West Co Electrical Services Ltd2022
- Zeus Electrical Nationwide Ltd2024
- Ztech Electrics Ltd2022
- 2 Way Electrical Services Limited2017
- A-Smart Process Ltd2022
All electrical contractors in Slough · All trades in Slough · Electricians across the UK
Frequently asked questions
When are Tri Management Limited's accounts due?
Tri Management Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Tri Management 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 Tri Management Limited still trading?
Tri Management Limited is listed as active on the Companies House register (checked 12 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 Tri Management Limited do?
Tri Management Limited is registered under Electrical installation (SIC 43210).
How old is Tri Management Limited?
Tri Management Limited was incorporated on 29 August 2000, 26 years ago.
What is the penalty if Tri Management 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 Tri Management Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.