- Companies
- Machinery repair and installation
- Plymouth
- Adtec Systems Limited
Company profile · Machinery repair and installation
Adtec Systems Limited
Adtec Systems Limited is a 23-year-old private limited company registered in Plymouth, company number 04571117, one of 98 machinery repair and installation companies in Plymouth. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 31 March 2026, as filed at Companies House.
Adtec Systems Limited over the years
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 down £9,899 (-21%) on the year before, to £37K.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £138K against £122K owed within a year: 1.1 times cover.
- 7 employees on average, down from 9 the year before.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £37K | £31K | £138K | £122K | 7 |
| 31 Mar 2025 | £47K | £28K | £138K | £116K | 9 |
| 31 Mar 2024 | £37K | £8,501 | £99K | £87K | 9 |
| 31 Mar 2023 | £49K | £42K | £162K | £131K | 7 |
| 31 Mar 2022 | £32K | £45K | £98K | £80K | 7 |
| 31 Mar 2021 | £37K | £26K | £101K | £65K | 5 |
| 31 Mar 2020 | £39K | £53K | £13K | 0 | |
| 31 Oct 2019 | £1 | ||||
| 31 Oct 2018 | £1 | £1 | |||
| 31 Oct 2017 | £1 | £1 |
Where Adtec Systems Limited is registered
The registered office is in Plymouth (PL1), in the Plymouth local authority area, South West. Show PL1 3JY on a map.
Other trade companies in PL1
- Clearway Drives & Patios LtdLandscapers and gardeners
- Techshopplymouth LtdRepair services
- Plymouth Garage LtdMechanics and garages
- Westmore Construction (South West) LtdProperty developers
- SW MOT LtdMechanics and garages
- SW Garage LtdMechanics and garages
- Mitchell Electrical (SW) LtdElectricians
- Mallu S Wheels UK LtdMotor traders
Shared registered office
48 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 Adtec Systems 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 31 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 04571117
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 October 2002 (23 years ago)
- Registered office
- 33 Mary Seacole Road, Plymouth, PL1 3JY
- Nature of business
- Repair of electrical equipment (SIC 33140)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 2 July 2026
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Plymouth
Other active machinery repair and installation companies registered in Plymouth.
- Aeroav Services Ltd2023
- Aircore Compressor Engineers Ltd2026
- Alpha Services (Plymouth) Limited1991
- Appliance Doctor South West Limited2015
- Aqualution Limited2026
- Aspect Electrical & Gas Services Ltd2005
- Avd Aviation Technical Consultancy & Services Limited2017
- B & C Carpentry Limited1996
All machinery repair and installation companies in Plymouth · All trades in Plymouth · Machinery repair and installation across the UK
Frequently asked questions
When are Adtec Systems Limited's accounts due?
Adtec Systems Limited's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is Adtec Systems Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Adtec Systems Limited still trading?
Adtec Systems 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 Adtec Systems Limited do?
Adtec Systems Limited is registered under Repair of electrical equipment (SIC 33140).
How old is Adtec Systems Limited?
Adtec Systems Limited was incorporated on 23 October 2002, 23 years ago.
What is the penalty if Adtec Systems 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 Adtec Systems 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.