- Companies
- Cleaning companies
- Cambridge
- I. O. S. Group Ltd
I. O. S. Group Ltd
- Company number
- 11812351
- Incorporated
- 7 Feb 20197 years trading
- Registered office
- Unit 16 Trafalgar Way, Bar Hill, Cambridge, CB23 8SQ
- Nature of business
- General cleaning of buildings; Window cleaning services; Other building and industrial cleaning activities
I. O. S. Group Ltd is a 7-year-old private limited company registered in Cambridge, company number 11812351, one of 122 cleaning companies in Cambridge. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 2027.
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 I. O. S. Group 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 down £44K (-92.1%) on the year before, to £3,713.
- Net assets rose in 2 of 5 year-on-year comparisons on record.
- Current assets of £76K against £61K owed within a year: 1.3 times cover.
- 30 employees on average, up from 20 the year before.
- Balance sheets on record for 6 years, 2020 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | £3,713 | £76K | £61K | 30 | |
| 29 Feb 2024 | £47K | £76K | £57K | 20 | |
| 28 Feb 2023 | £58K | £46K | £22K | 10 | |
| 28 Feb 2022 | £21K | £28K | £13K | 5 | |
| 28 Feb 2021 | -£1,064 | £5,899 | £16K | £11K | 0 |
| 29 Feb 2020 | £41 | £49 | £50 | 1 |
Who runs and owns I. O. S. Group Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (3)
| Name | Role | Appointed |
|---|---|---|
| T*** K*** | Director | Feb 2019 |
| K*** K*** | Director | Jul 2024 |
| T*** K*** | Secretary | Jul 2024 |
People with significant control (2)
Where I. O. S. Group Ltd is registered
The registered office is in Cambridge (CB23), in the South Cambridgeshire local authority area, East of England. Show CB23 8SQ on a map.
Other trade companies in CB23
- Hayberry Developments LtdProperty developers
- L & A's Care LimitedCleaning companies
- Colton Brickwork LimitedInstallers
- Xpray Group LtdCleaning companies
- Precision Vehicle Solutions LtdMechanics and garages
- Kayb Paint Work LtdPainters and decorators
- Planted Spaces LtdLandscapers and gardeners
- Georgi Garage LtdMechanics and garages
What happens if I. O. S. Group 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 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 11812351
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 February 2019 (7 years ago)
- Registered office
- Unit 16 Trafalgar Way, Bar Hill, Cambridge, CB23 8SQ
- Nature of business
- General cleaning of buildings (SIC 81210)
Window cleaning services (SIC 81221)
Other building and industrial cleaning activities (SIC 81229) - Year end
- 28 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 2 July 2026
- Previous names
- Ivitamins Shop Ltd (until 24 Jun 2019)
Filing notes for cleaning companies
Cleaning companies are often staff-heavy, so wages, pension contributions and the employment allowance all show up in the accounts.
Similar companies in Cambridge
Other active cleaning companies registered in Cambridge.
- I.Auto Detailing Ltd2023
- Idf Clean Exteriors Ltd2021
- Ima Cleaning Limited2025
- Instantclean Ltd2025
- J&J Caring Services Limited2018
- JLP Cleaning Services Limited2025
- JLX Cleaning Services Ltd2026
- JMB Cleaning Services Ltd2021
All cleaning companies in Cambridge · All trades in Cambridge · Cleaning companies across the UK
Frequently asked questions
When are I. O. S. Group Ltd's accounts due?
I. O. S. Group Ltd's next accounts are due at Companies House by 30 November 2026 (in 48 days), covering the period to 28 February 2026.
When is I. O. S. Group Ltd's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is I. O. S. Group Ltd still trading?
I. O. S. Group 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 I. O. S. Group Ltd do?
I. O. S. Group Ltd is registered under General cleaning of buildings (SIC 81210); Window cleaning services (SIC 81221); Other building and industrial cleaning activities (SIC 81229).
How old is I. O. S. Group Ltd?
I. O. S. Group Ltd was incorporated on 7 February 2019, 7 years ago.
Who runs I. O. S. Group Ltd?
I. O. S. Group Ltd has 2 active directors, the longest-serving appointed in Feb 2019. Their names and service addresses are on the Companies House register.
Who owns I. O. S. Group Ltd?
2 people or companies have significant control of I. O. S. Group Ltd: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if I. O. S. Group 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 I. O. S. Group 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.