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- Atom Security UK Ltd
Company profile · Machinery repair and installation
Atom Security UK Ltd
Atom Security UK Ltd is a 11-year-old private limited company registered in Bolton, company number 09647038, one of 116 machinery repair and installation companies in Bolton. Its next accounts are due at Companies House on 30 December 2026, and the CT600 for the period to 30 March 2026 is due at HMRC on 30 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 March 2025, as filed at Companies House.
Atom Security UK Ltd 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 up £14K (+28.4%) on the year before, to £62K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £165K against £105K owed within a year: 1.6 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 Mar 2025 | £62K | £76K | £165K | £105K | 0 |
| 31 Mar 2024 | £48K | £49K | £128K | £84K | 0 |
| 31 Mar 2023 | £31K | £15K | £60K | £37K | 3 |
| 31 Mar 2022 | £33K | £22K | £59K | £33K | 2 |
| 31 Mar 2021 | £15K | £13K | £35K | £22K | 2 |
| 31 Mar 2020 | £3,870 | £15K | £42K | £38K | 2 |
| 31 Mar 2019 | £766 | £8,691 | £28K | £29K | 2 |
| 31 Mar 2018 | £379 | £12K | £32K | £34K | 2 |
| 31 Mar 2017 | £6 | £17K | £20K | £24K | 1 |
| 30 Jun 2016 | £3,725 | £16K | £17K |
Where Atom Security UK Ltd is registered
The registered office is in Bolton (BL3), in the Bolton local authority area, North West. Show BL3 1BD on a map.
Other trade companies in BL3
- A1 Bloch Builders LtdInstallers
- Hareem Import Car UK LtdMotor traders
- Baigs Construction Supplies and Builders LtdBuilders
- Hasan Hossain Services LtdPlumbers and heating engineers
- Ubernest Projects LtdBuilders
- La Patronne Services LtdCleaning companies
- Ev Hybrid Repair LtdMotor traders
- BT Car Sales LtdMotor traders
What happens if Atom Security UK 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 30 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 31 Dec 2026 to 30 Jan 2027 | £150 |
| 1 to 3 months late | 31 Jan 2027 to 30 Mar 2027 | £375 |
| 3 to 6 months late | 31 Mar 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 31 Mar 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 | 30 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
- 09647038
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 June 2015 (11 years ago)
- Registered office
- 1 Slade Street, Little Lever, Bolton, BL3 1BD
- Nature of business
- Installation of industrial machinery and equipment (SIC 33200)
- Year end
- 30 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 18 June 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 Bolton
Other active machinery repair and installation companies registered in Bolton.
- Auto Door Tech Ltd2025
- Autotec (Bolton) Ltd2025
- Axd Environmental Limited2015
- Bear Plant Services Limited2018
- Bes Electrical Fire & Security Ltd2012
- Bes Fire and Security Ltd2016
- Best Bargain Sewing Supplies Ltd2018
- Bleeper Services Limited2001
All machinery repair and installation companies in Bolton · All trades in Bolton · Machinery repair and installation across the UK
Frequently asked questions
When are Atom Security UK Ltd's accounts due?
Atom Security UK Ltd's next accounts are due at Companies House by 30 December 2026 (in 79 days), covering the period to 30 March 2026.
When is Atom Security UK Ltd's CT600 due?
The CT600 for the period to 30 March 2026 is due at HMRC by 30 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 31 December 2026.
Is Atom Security UK Ltd still trading?
Atom Security UK 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 Atom Security UK Ltd do?
Atom Security UK Ltd is registered under Installation of industrial machinery and equipment (SIC 33200).
How old is Atom Security UK Ltd?
Atom Security UK Ltd was incorporated on 18 June 2015, 11 years ago.
What is the penalty if Atom Security UK 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 Atom Security UK 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.