- Companies
- Electricians
- Frome
- Illumina Ltd
Illumina Ltd
- Company number
- 11349228
- Incorporated
- 8 May 20188 years trading
- Registered office
- 7A King Street, Frome, Somerset, BA11 1BH
- Nature of business
- Electrical installation
Illumina Ltd is a 8-year-old private limited company registered in Frome, company number 11349228, one of 24 electrical contractors in Frome. Its next accounts are due at Companies House on 29 February 2028, and the CT600 for the period to 31 May 2027 is due at HMRC on 31 May 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the 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 Illumina LtdOr 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.
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 £8,564 (+25.3%) on the year before, to £42K.
- Net assets rose in 5 of 7 year-on-year comparisons on record.
- Current assets of £71K against £33K owed within a year: 2.1 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 8 years, 2019 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2026 | £42K | £45K | £71K | £33K | 3 |
| 31 May 2025 | £34K | £35K | £61K | £32K | 3 |
| 31 May 2024 | £22K | £36K | £44K | £27K | 3 |
| 31 May 2023 | £33K | £35K | £50K | £25K | 4 |
| 31 May 2022 | £41K | £47K | £69K | £31K | 2 |
| 31 May 2021 | £21K | £30K | £42K | £26K | 2 |
| 31 May 2020 | £15K | £11K | £34K | £26K | 2 |
| 31 May 2019 | £4,646 | £18K | £24K | £29K | 2 |
Public contracts won
Illumina Ltd has one public sector contract award on record; the ones with their own published value total £22K (2026). Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Birmingham Women's and Children's NHS Foundation Trust | Waiver - BWC_RQ3 - Illumina Ltd - Dragen license renewal | £22K | 13 Apr 2026 |
Where Illumina Ltd is registered
The registered office is in Frome (BA11), in the Somerset local authority area, South West. Show BA11 1BH on a map.
Other trade companies in BA11
- MRC Construction Consultancy LtdBuilders
- Greystone Building Projects Company LtdBuilders
- Rich Maggs Roofing LtdRoofers
- Firebox and Flue LtdCleaning companies
- Somerset Renovations LtdBuilders
- GW James Construction LtdBuilders
- Pav Build A Home LimitedBuilders
- Phillips Land Management LtdLandscapers and gardeners
Shared registered office
46 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 Illumina 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 29 February 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2028 to 31 Mar 2028 | £150 |
| 1 to 3 months late | 1 Apr 2028 to 31 May 2028 | £375 |
| 3 to 6 months late | 1 Jun 2028 to 31 Aug 2028 | £750 |
| More than 6 months late | From 1 Sep 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2028 | £200 |
| 3 months late | 31 Aug 2028 | another £200 |
| 6 months late | 30 Nov 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 11349228
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 May 2018 (8 years ago)
- Registered office
- 7A King Street, Frome, Somerset, BA11 1BH
- 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 2026
- Last confirmation statement
- 7 May 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 Frome
Other active electrical contractors registered in Frome.
- J.F. Padwick & Co Electrical Limited1973
- K & M Electrical Contractors Limited2005
- Keates Electrical Limited2023
- Millers Electrical Contractors Limited2011
- N.B. Avis Ltd1997
- Offshore Power Ltd2011
- Pdfee Ltd2012
- Phoenix Electrical Contractors (South West) Ltd2012
All electrical contractors in Frome · All trades in Frome · Electricians across the UK
Frequently asked questions
When are Illumina Ltd's accounts due?
Illumina Ltd's next accounts are due at Companies House by 29 February 2028 (in 504 days), covering the period to 31 May 2027.
When is Illumina Ltd's CT600 due?
The CT600 for the period to 31 May 2027 is due at HMRC by 31 May 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2028.
Is Illumina Ltd still trading?
Illumina Ltd 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 Illumina Ltd do?
Illumina Ltd is registered under Electrical installation (SIC 43210).
How old is Illumina Ltd?
Illumina Ltd was incorporated on 8 May 2018, 8 years ago.
Has Illumina Ltd won public sector contracts?
Yes. Illumina Ltd has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £22K), most recently from Birmingham Women's and Children's NHS Foundation Trust.
What is the penalty if Illumina 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 Illumina Ltd 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.