- Companies
- Machinery repair and installation
- Covent Garden
- Proteus Professionals Limited
Proteus Professionals Limited
- Company number
- 13705407
- Incorporated
- 26 Oct 20214 years trading
- Registered office
- 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ
- Nature of business
- Repair and maintenance of ships and boats; Other activities of employment placement agencies; Temporary employment agency activities; Human resources provision and management of human resources functions
Proteus Professionals Limited is a 4-year-old private limited company registered in Covent Garden, company number 13705407, one of 116 machinery repair and installation companies in Covent Garden. 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 down £8,312 (-198.6%) on the year before, to -£4,127.
- Net assets rose in 2 of 3 year-on-year comparisons on record.
- Current assets of £1,481 against £5,258 owed within a year: 0.3 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | -£4,127 | £1,481 | £5,258 | 0 | |
| 31 Oct 2024 | £4,185 | £21K | £24K | 0 | |
| 31 Oct 2023 | £1,974 | £2,329 | £3,953 | 0 | |
| 31 Oct 2022 | £1,733 | £8,125 | £9,508 | 0 |
Who runs and owns Proteus Professionals Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| D*** F*** | Director | Oct 2021 |
| E*** F*** | Director | Oct 2022 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| M*** F*** | Director | Sep 2022 | Aug 2025 |
Person with significant control
Where Proteus Professionals Limited is registered
The registered office is in Covent Garden (WC2H), in the Camden local authority area, London. Show WC2H 9JQ on a map.
Other trade companies in WC2H
- Superclean Agency LtdCleaning companies
- Sal Cleaning LtdCleaning companies
- Cityshine Facilities Services LtdCleaning companies
- Pureoceanscleaning LtdCleaning companies
- Muca Property Group LimitedProperty developers
- E.L.G.G LtdJoiners and carpenters
- First Ascentia Integrated LtdCleaning companies
- Fixing London LtdSpecialist contractors
Shared registered office
4,529 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 Proteus Professionals 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
- 13705407
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 26 October 2021 (4 years ago)
- Registered office
- 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ
- Nature of business
- Repair and maintenance of ships and boats (SIC 33150)
Other activities of employment placement agencies (SIC 78109)
Temporary employment agency activities (SIC 78200)
Human resources provision and management of human resources functions (SIC 78300) - Year end
- 31 October (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 25 October 2025
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 Covent Garden
Other active machinery repair and installation companies registered in Covent Garden.
- Q Mount Ltd2026
- Ramona Travis Access Ltd2025
- RCW Cooling Ltd2026
- RG Locksmith & Trade Services Limited2016
- RGP Engineering Ltd2026
- Rlo Renewables Ltd2026
- Rma Aviation Ltd2025
- Roadside Heroes Ltd2023
All machinery repair and installation companies in Covent Garden · All trades in Covent Garden · Machinery repair and installation across the UK
Frequently asked questions
When are Proteus Professionals Limited's accounts due?
Proteus Professionals Limited's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Proteus Professionals 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 Proteus Professionals Limited still trading?
Proteus Professionals 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 Proteus Professionals Limited do?
Proteus Professionals Limited is registered under Repair and maintenance of ships and boats (SIC 33150); Other activities of employment placement agencies (SIC 78109); Temporary employment agency activities (SIC 78200); Human resources provision and management of human resources functions (SIC 78300).
How old is Proteus Professionals Limited?
Proteus Professionals Limited was incorporated on 26 October 2021, 4 years ago.
Who runs Proteus Professionals Limited?
Proteus Professionals Limited has 2 active directors, the longest-serving appointed in Oct 2021. Their names and service addresses are on the Companies House register.
Who owns Proteus Professionals Limited?
One person or company has significant control of Proteus Professionals Limited: an individual (owns 75% or more of the shares).
What is the penalty if Proteus Professionals 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 Proteus Professionals 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.