- Companies
- Electricians
- Covent Garden
- Protocol Group Limited
Protocol Group Limited
- Company number
- 17036918
- Incorporated
- 17 Feb 2026
- Registered office
- 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ
- Nature of business
- Electrical installation; Plumbing, heat and air-conditioning installation; Other construction installation; Other building completion and finishing
Protocol Group Limited is a newly incorporated private limited company registered in Covent Garden, company number 17036918, one of 274 electrical contractors in Covent Garden. Its next accounts are due at Companies House on 17 November 2027, and its first CT600 is due at HMRC on 16 February 2028.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
Is this your company?
File the first accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Protocol Group LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Who runs and owns Protocol Group Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| S*** H*** | Director | Feb 2026 |
| S*** H*** | Secretary | Feb 2026 |
Person with significant control
Where Protocol Group 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 Protocol Group 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 17 November 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 18 Nov 2027 to 17 Dec 2027 | £150 |
| 1 to 3 months late | 18 Dec 2027 to 17 Feb 2028 | £375 |
| 3 to 6 months late | 18 Feb 2028 to 17 May 2028 | £750 |
| More than 6 months late | From 18 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 2029 | 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
- 17036918
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 February 2026
- Registered office
- 71-75 Shelton Street, Covent Garden, London, WC2H 9JQ
- Nature of business
- Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220)
Other construction installation (SIC 43290)
Other building completion and finishing (SIC 43390) - Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 24 March 2026
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Covent Garden
Other active electrical contractors registered in Covent Garden.
- Quality Building Maintenance Global Ltd2021
- Quarmby Electrical Services Ltd2025
- Quest Electrical Services Ltd2024
- Quick Volts Electrics Ltd2024
- Qvanta Limited2025
- Ray Electrical Services Limited2021
- React Facilities Ltd2026
- Ren-S Renewable Energy Solutions Ltd2026
All electrical contractors in Covent Garden · All trades in Covent Garden · Electricians across the UK
Frequently asked questions
When are Protocol Group Limited's accounts due?
Protocol Group Limited's next accounts are due at Companies House by 17 November 2027 (in 401 days), covering the period to 28 February 2027.
When is Protocol Group Limited's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 16 February 2027, due by 16 February 2028, and one for the period to 28 February 2027, due by 28 February 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Protocol Group Limited still trading?
Protocol Group 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 Protocol Group Limited do?
Protocol Group Limited is registered under Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220); Other construction installation (SIC 43290); Other building completion and finishing (SIC 43390).
How old is Protocol Group Limited?
Protocol Group Limited was incorporated on 17 February 2026, less than a year ago.
Who runs Protocol Group Limited?
Protocol Group Limited has 1 active director, the longest-serving appointed in Feb 2026. Their names and service addresses are on the Companies House register.
Who owns Protocol Group Limited?
One person or company has significant control of Protocol Group Limited: an individual (owns 75% or more of the shares).
What is the penalty if Protocol Group 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 Protocol Group 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.