- Companies
- Electricians
- Aylesbury
- Sparkx Limited
Sparkx Limited
- Company number
- 05536931
- Incorporated
- 15 Aug 200521 years trading
- Registered office
- Wellhead Farm Hale Road, Wendover, Aylesbury, HP22 6NJ
- Nature of business
- Electrical installation
Sparkx Limited is a 21-year-old private limited company registered in Aylesbury, company number 05536931, one of 110 electrical contractors in Aylesbury. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £48K (+11.9%) on the year before, to £447K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- 35 employees on average, down from 37 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 May 2025 | £447K | £133 | £1.5M | 35 | |
| 31 May 2024 | £399K | £87K | £1.1M | £917K | 37 |
| 31 May 2023 | £106K | £12K | £1M | £1.2M | 38 |
| 31 May 2022 | -£63K | £49K | £740K | £964K | 30 |
| 31 May 2021 | £72K | £48K | £383K | £422K | 27 |
| 31 May 2020 | £62K | £309K | £517K | £611K | 21 |
| 31 May 2019 | £64K | £93K | £465K | £329K | 12 |
| 31 May 2018 | £41K | £59K | £180K | £193K | |
| 31 May 2017 | £9,925 | £13K | £55K | £99K | 11 |
| 31 May 2016 | £250 | £63K | £63K | £134K |
Who runs and owns Sparkx Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (5)
| Name | Role | Appointed |
|---|---|---|
| C*** R*** | Director | Aug 2005 |
| D*** H*** | Director | Jun 2024 |
| S*** L*** | Director | Jun 2024 |
| D*** G*** | Director | Dec 2025 |
| C*** R*** | Secretary | Oct 2009 |
3 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| K*** R*** | Secretary | Aug 2005 | Oct 2009 |
| K*** R*** | Director | Aug 2005 | Oct 2009 |
| D*** S*** | Director | Apr 2016 | Feb 2018 |
Person with significant control
Charges (secured borrowing)
1 of 1 registered charge is outstanding. A charge is security a lender takes over a company's assets, typically for a loan, mortgage or asset finance.
| Lender | Status | Registered |
|---|---|---|
| HSBC UK Bank PLC | Outstanding | Nov 2018 |
Public contracts won
Sparkx Limited has 22 public sector contract awards on record; the ones with their own published value total £1.1M, from 2016 to 2026. Source: Contracts Finder and Find a Tender award notices. For 1 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. 11 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Stevenage Borough Council3 awards
- Dacorum Borough Council1 award
- The Ivers Parish Council1 award
- Christchurch Town Council1 award
- Tring Town Council1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Dacorum Borough Council | DBC (SF) Dacorum Festive Lighting Scheme | £191K | 17 Jul 2026 |
| Stevenage Borough Council | SBC 0526 Supply of Festive Decorations | 18 Jun 2026 | |
| The Ivers Parish Council | 3 Year Supply, Installation and Servicing of Village Festive/Christmas Lighting | £41K | 9 Jun 2026 |
| Christchurch Town Council | Christmas Lights 2026-2028 | £120K | 13 May 2026 |
| Tring Town Council | Tring Festive Lighting Scheme | £41K | 22 Sep 2025 |
| West Bletchley Council | Christmas Festive Lights 2025 - 2027 | £86K | 4 Jun 2025 |
| Canvey Island Town Council | Christmas Lighting Services | £8,795 | 28 Aug 2024 |
| Buckinghamshire Council | Greyhound Lane Car Park - Lighting | £13K | 8 Mar 2024 |
| Stevenage Borough Council | Lighting Town Centre Clock Tower | £60K | 20 Jan 2024 |
| Broadstairs & St. Peter's Town Council | Broadstairs & St Peter's Christmas Lights Installation | £16K | 27 Sep 2023 |
Showing the 10 most recent of 22.
Where Sparkx Limited is registered
The registered office is in Aylesbury (HP22), in the Buckinghamshire local authority area, South East. Show HP22 6NJ on a map.
Other trade companies in HP22
- RZK Automotive & Recovery LtdMotor traders
- Ejp Facilities & Maintenance LimitedFacilities management
- Clearway Group Solutions LtdCleaning companies
- DM Select Motors LimitedMotor traders
- Ea 4Property LtdProperty developers
- Warner Made LtdProperty developers
- JTC Dev 1 LimitedProperty developers
- Custom Colour Coatings Group LtdMotor traders
What happens if Sparkx 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 05536931
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 August 2005 (21 years ago)
- Registered office
- Wellhead Farm Hale Road, Wendover, Aylesbury, HP22 6NJ
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 27 October 2025
- Charges (mortgages)
- 1 outstanding of 1 registered
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 Aylesbury
Other active electrical contractors registered in Aylesbury.
- Spectrum Electrical Solutions UK Limited2008
- Stratos Lighting Ltd2022
- Syscally Limited2020
- Szaki Limited2025
- T&D Electrical (Southern) Ltd.2017
- T&D Electrical Small Works Ltd2021
- T.L Electrical Ltd2019
- Tony's Technical Engineers Ltd2025
All electrical contractors in Aylesbury · All trades in Aylesbury · Electricians across the UK
Frequently asked questions
When are Sparkx Limited's accounts due?
Sparkx Limited's next accounts are due at Companies House by 28 February 2027 (in 139 days), covering the period to 31 May 2026.
When is Sparkx Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Sparkx Limited still trading?
Sparkx 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 Sparkx Limited do?
Sparkx Limited is registered under Electrical installation (SIC 43210).
How old is Sparkx Limited?
Sparkx Limited was incorporated on 15 August 2005, 21 years ago.
Who runs Sparkx Limited?
Sparkx Limited has 4 active directors, the longest-serving appointed in Aug 2005. Their names and service addresses are on the Companies House register.
Who owns Sparkx Limited?
One person or company has significant control of Sparkx Limited: Sparkx Group Limited (owns 75% or more of the shares).
Has Sparkx Limited won public sector contracts?
Yes. Sparkx Limited has 22 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £1.1M), most recently from Dacorum Borough Council.
What is the penalty if Sparkx 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 Sparkx 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.