- Companies
- Specialist contractors
- Hull
- Mason Clark Associates Limited
Mason Clark Associates Limited
- Company number
- 02537113
- Incorporated
- 5 Sep 199036 years trading
- Registered office
- Church House, 44 Newland Park, Hull, HU5 2DW
- Nature of business
- Other specialised construction activities n.e.c.
Mason Clark Associates Limited is a 36-year-old private limited company registered in Hull, company number 02537113, one of 132 specialist construction companies in Hull. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 £327K (+13.7%) on the year before, to £2.7M.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £3.9M against £1.4M owed within a year: 2.9 times cover.
- 47 employees on average, down from 50 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 Oct 2025 | £2.7M | £1.7M | £3.9M | £1.4M | 47 |
| 31 Oct 2024 | £2.4M | £1.3M | £3.3M | £1M | 50 |
| 31 Oct 2023 | £2.1M | £902K | £3M | £1M | 47 |
| 31 Oct 2022 | £2.5M | £1M | £3.4M | £1M | 47 |
| 31 Oct 2021 | £2.5M | £971K | £3.2M | £741K | 45 |
| 31 Oct 2020 | £2.4M | £1M | £3.2M | £800K | 48 |
| 31 Oct 2019 | £2.3M | £674K | £3.2M | £1M | 52 |
| 31 Oct 2018 | £2.1M | £348K | £3.1M | £1M | 52 |
| 31 Oct 2017 | £2M | £768K | £2.7M | £946K | 49 |
| 31 Oct 2016 | £1.5M | £146K | £2.2M | £908K |
Public contracts won
Mason Clark Associates Limited has 86 public sector contract awards on record; the ones with their own published value total £9.1M, from 2017 to 2026. Source: Contracts Finder and Find a Tender award notices. For 24 of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. 76 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Hull City Council44 awards
- North Lincolnshire Council13 awards
- Fusion21 Members Consortium3 awards
- Leeds City Council3 awards
- EN Procure Ltd2 awards
Showing the 10 most recent of 86.
Where Mason Clark Associates Limited is registered
The registered office is in Hull (HU5), in the Kingston upon Hull, City of local authority area, Yorkshire and The Humber. Show HU5 2DW on a map.
Other trade companies in HU5
- Alstrax LtdGroundworks and demolition
- Lydian Collective LtdPlasterers
- Pinnacle Properties Hull LtdBuilders
- The Bathroom Company (Hull) LtdPlumbers and heating engineers
- P Hemmo Property Management LtdProperty developers
- Viking Plumbing and Heating Hull LtdPlumbers and heating engineers
- Kalls Renewables LtdCivil engineering
- Fuse Electrical Yorkshire LimitedElectricians
Also registered at this address
1 other company uses the same registered office as Mason Clark Associates Limited.
- Ukbs LimitedSpecialist contractors
What happens if Mason Clark Associates 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 02537113
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 September 1990 (36 years ago)
- Registered office
- Church House, 44 Newland Park, Hull, HU5 2DW
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 5 September 2026
- Charges (mortgages)
- 3 outstanding of 5 registered
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 Hull
Other active specialist construction companies registered in Hull.
- MD Fitters Ltd2021
- Michael Cox Associates Limited1999
- MJ Blade Tech Ltd2024
- MJC Taylor Ltd2025
- MW Campbells Engineering Limited2026
- N E Davis Plant Hire Limited2005
- Nexgen Mep Solutions Limited2025
- Nexus (Hull) Ltd2025
All specialist construction companies in Hull · All trades in Hull · Specialist contractors across the UK
Frequently asked questions
When are Mason Clark Associates Limited's accounts due?
Mason Clark Associates Limited's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Mason Clark Associates Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Mason Clark Associates Limited still trading?
Mason Clark Associates 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 Mason Clark Associates Limited do?
Mason Clark Associates Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Mason Clark Associates Limited?
Mason Clark Associates Limited was incorporated on 5 September 1990, 36 years ago.
Has Mason Clark Associates Limited won public sector contracts?
Yes. Mason Clark Associates Limited has 86 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £9.1M), most recently from Royal Armouries Museum.
What is the penalty if Mason Clark Associates 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 Mason Clark Associates 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.