- Companies
- Specialist contractors
- Hemel Hempstead
- Catalyst 75 Ltd
Catalyst 75 Ltd
- Company number
- 10978689
- Incorporated
- 23 Sep 20179 years trading
- Registered office
- 1C Amberside, Wood Lane, Hemel Hempstead, Hertfordshire, HP2 4TP
- Nature of business
- Other specialised construction activities n.e.c.; Management consultancy activities other than financial management; Other business support service activities n.e.c.; Other service activities n.e.c.
Catalyst 75 Ltd is a 9-year-old private limited company registered in Hemel Hempstead, company number 10978689, one of 104 specialist construction companies in Hemel Hempstead. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 down £13 (-13.5%) on the year before, to £83.
- Net assets rose in 2 of 7 year-on-year comparisons on record.
- Current assets of £7,917 against £3,134 owed within a year: 2.5 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Sep 2025 | £83 | £172 | £7,917 | £3,134 | 2 |
| 30 Sep 2024 | £96 | £3,404 | £9,615 | £4,103 | 1 |
| 30 Sep 2023 | £414 | £4,203 | £12K | £5,657 | 1 |
| 30 Sep 2022 | £417 | £3,104 | £9,951 | £3,230 | 1 |
| 30 Sep 2021 | £7,834 | £24K | £9,781 | 1 | |
| 30 Sep 2020 | £38 | £106 | £106 | £574 | 1 |
| 30 Sep 2019 | £13 | £998 | £8,099 | £8,761 | 1 |
| 30 Sep 2018 | £423 | £1,241 | £5,798 | £6,277 | 1 |
Where Catalyst 75 Ltd is registered
The registered office is in Hemel Hempstead (HP2), in the Dacorum local authority area, East of England. Show HP2 4TP on a map.
Other trade companies in HP2
- Prime Carpet Cleaning Experts LtdCleaning companies
- House to Home Builders LtdBuilders
- Gabriel Curic LtdCivil engineering
- Morya Holdings LtdProperty developers
- Construction by Nick LtdSpecialist contractors
- Ayzat Cleaning Solutions LimitedCleaning companies
- Thompsons Prowash LtdCleaning companies
- Herts Paving & Landscapes LtdSpecialist contractors
Shared registered office
29 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 Catalyst 75 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 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 10978689
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 September 2017 (9 years ago)
- Registered office
- 1C Amberside, Wood Lane, Hemel Hempstead, Hertfordshire, HP2 4TP
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Management consultancy activities other than financial management (SIC 70229)
Other business support service activities n.e.c. (SIC 82990)
Other service activities n.e.c. (SIC 96090) - Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 22 September 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 Hemel Hempstead
Other active specialist construction companies registered in Hemel Hempstead.
- Clamp Construction Ltd2022
- Construction by Nick Ltd2026
- Costamartina Ltd2018
- D&D Trans Logistic Limited2016
- D&H Digging Services Ltd2026
- Daniel Jones Construction Limited2014
- Dariont Constructions Ltd2025
- Davis & Samson Developments Ltd2017
All specialist construction companies in Hemel Hempstead · All trades in Hemel Hempstead · Specialist contractors across the UK
Frequently asked questions
When are Catalyst 75 Ltd's accounts due?
Catalyst 75 Ltd's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is Catalyst 75 Ltd's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Catalyst 75 Ltd still trading?
Catalyst 75 Ltd 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 Catalyst 75 Ltd do?
Catalyst 75 Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999); Management consultancy activities other than financial management (SIC 70229); Other business support service activities n.e.c. (SIC 82990); Other service activities n.e.c. (SIC 96090).
How old is Catalyst 75 Ltd?
Catalyst 75 Ltd was incorporated on 23 September 2017, 9 years ago.
What is the penalty if Catalyst 75 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 Catalyst 75 Ltd 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.