- Companies
- Specialist contractors
- Grimsby
- M Z Security Limited
M Z Security Limited
- Company number
- 15537155
- Incorporated
- 2 Mar 20242 years trading
- Registered office
- 157A Hainton Avenue, Grimsby, DN32 9LF
- Nature of business
- Other specialised construction activities n.e.c.; Other letting and operating of own or leased real estate; Management of real estate on a fee or contract basis; Private security activities
M Z Security Limited is a 2-year-old private limited company registered in Grimsby, company number 15537155, one of 102 specialist construction companies in Grimsby. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 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.
Where M Z Security Limited is registered
The registered office is in Grimsby (DN32), in the North East Lincolnshire local authority area, Yorkshire and The Humber. Show DN32 9LF on a map.
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- Stephenson Construction LtdBuilders
- Am Property and Renovations LtdBuilders
What happens if M Z Security 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 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 | 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
- 15537155
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 March 2024 (2 years ago)
- Registered office
- 157A Hainton Avenue, Grimsby, DN32 9LF
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Other letting and operating of own or leased real estate (SIC 68209)
Management of real estate on a fee or contract basis (SIC 68320)
Private security activities (SIC 80100) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 1 March 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Grimsby
Other active specialist construction companies registered in Grimsby.
- M&B Safety Netting Ltd.2020
- Marshall Build (Grimsby) Limited1996
- Mes Engineering Ltd2017
- Mybel H&S Limited2026
- NB Offshore Management Services Ltd2023
- Net Safety U.K. Ltd.2007
- Newby Leisure Limited2002
- Newglaze Limited1994
All specialist construction companies in Grimsby · All trades in Grimsby · Specialist contractors across the UK
Frequently asked questions
When are M Z Security Limited's accounts due?
M Z Security Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is M Z Security Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is M Z Security Limited still trading?
M Z Security 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 M Z Security Limited do?
M Z Security Limited is registered under Other specialised construction activities n.e.c. (SIC 43999); Other letting and operating of own or leased real estate (SIC 68209); Management of real estate on a fee or contract basis (SIC 68320); Private security activities (SIC 80100).
How old is M Z Security Limited?
M Z Security Limited was incorporated on 2 March 2024, 2 years ago.
What is the penalty if M Z Security 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 M Z Security 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.