- Companies
- Facilities management
- Belfast
- O3 Group Ltd
O3 Group Ltd
- Company number
- NI049766
- Incorporated
- 23 Feb 200422 years trading
- Registered office
- Forsyth House, Cromac Square, Belfast, BT2 8LA
- Nature of business
- Combined facilities support activities
O3 Group Ltd is a 22-year-old private limited company registered in Belfast, company number NI049766, one of 17 facilities management companies in Belfast. 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.
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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 £5,295 (+1%) on the year before, to £531K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £659K against £303K owed within a year: 2.2 times cover.
- 14 employees on average, up from 13 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 |
|---|---|---|---|---|---|
| 28 Feb 2025 | £531K | £239K | £659K | £303K | 14 |
| 29 Feb 2024 | £526K | £402K | £763K | £270K | 13 |
| 28 Feb 2023 | £560K | £395K | £725K | £179K | 13 |
| 28 Feb 2022 | £493K | £369K | £677K | £165K | 13 |
| 28 Feb 2021 | £482K | £282K | £667K | £154K | 11 |
| 29 Feb 2020 | £457K | £265K | £522K | £113K | 11 |
| 28 Feb 2019 | £412K | £305K | £548K | £183K | 11 |
| 28 Feb 2018 | £380K | £250K | £469K | £107K | 0 |
| 28 Feb 2017 | £474K | £381K | £765K | £310K | 0 |
| 29 Feb 2016 | £287K | £216K | £532K | £261K | 0 |
Where O3 Group Ltd is registered
The registered office is in Belfast (BT2), in the Belfast local authority area, Northern Ireland. Show BT2 8LA on a map.
Other trade companies in BT2
- Lucem Emitte LimitedProperty developers
- Supacel Technologies LtdMotor traders
- Marko Conroy Painters UK LimitedPainters and decorators
- Rockland Development LimitedProperty developers
- Urbex Developments LtdProperty developers
- Secure State LtdElectricians
- Chic Shines Cleaning LtdCleaning companies
- Joseph Blair (Belfast) LimitedMotor traders
Also registered at this address
12 other companies use the same registered office as O3 Group Ltd.
- Aig Autos LimitedMotor traders
- Ballylear Company LtdProperty developers
- Caragh Shopfitting LtdPlumbers and heating engineers
- CC Electrical Contracts LtdElectricians
- D3I Developments LtdProperty developers
- Engineering Plus LtdElectricians
- McDowell's Development Company LimitedProperty developers
- Mme Property LtdProperty developers
- Secure State LtdElectricians
- T20 Reworx LimitedRepair services
- TCS Autosales Ltd.Motor traders
- Total Consumables NI LtdMotor traders
What happens if O3 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
- NI049766
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 February 2004 (22 years ago)
- Registered office
- Forsyth House, Cromac Square, Belfast, BT2 8LA
- Nature of business
- Combined facilities support activities (SIC 81100)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 23 February 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
- Previous names
- O3 Group (NI) Ltd (until 9 Mar 2015)
03 Solutions Limited (until 6 Jun 2014)
Filing notes for facilities management companies
Facilities management companies usually invoice on contract, so accrued income and deferred income matter at the year end.
Similar companies in Belfast
Other active facilities management companies registered in Belfast.
- P & P Property Solutions Ltd2026
- Premier Group FM Ltd2015
- Shandon Court Maintenance Limited2012
- Silverwood Green Development Management Company Limited2004
- Solutions to Work Limited2017
- TM Solutions N.I. Limited2024
- Zuttle Holdings Ltd2018
- Atlantic Facilities & Maintenance Ltd2019
All facilities management companies in Belfast · All trades in Belfast · Facilities management across the UK
Frequently asked questions
When are O3 Group Ltd's accounts due?
O3 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 O3 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 O3 Group Ltd still trading?
O3 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 O3 Group Ltd do?
O3 Group Ltd is registered under Combined facilities support activities (SIC 81100).
How old is O3 Group Ltd?
O3 Group Ltd was incorporated on 23 February 2004, 22 years ago.
What is the penalty if O3 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 O3 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.