- Companies
- Specialist contractors
- Chesterfield
- Sonar Data Ltd
Sonar Data Ltd
- Company number
- 06246168
- Incorporated
- 14 May 200719 years trading
- Registered office
- 32A Newbold Road, Chesterfield, Derbyshire, S41 7PH
- Nature of business
- Other specialised construction activities n.e.c.
Sonar Data Ltd is a 19-year-old private limited company registered in Chesterfield, company number 06246168, one of 111 specialist construction companies in Chesterfield. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 down £2,450 (-5.3%) on the year before, to £44K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £52K against £11K owed within a year: 4.6 times cover.
- 1 employee on average during the year.
- 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 Mar 2025 | £44K | £52K | £11K | 1 | |
| 31 Mar 2024 | £46K | £52K | £9,548 | 1 | |
| 31 Mar 2023 | £48K | £50K | £6,768 | 1 | |
| 31 Mar 2022 | £43K | £56K | £17K | 1 | |
| 31 Mar 2021 | £39K | £50K | £17K | 1 | |
| 31 Mar 2020 | £36K | £50K | £21K | 1 | |
| 31 Mar 2019 | £27K | £40K | £20K | ||
| 31 Mar 2018 | £20K | £38K | £25K | ||
| 31 Mar 2017 | £4,828 | £4,665 | |||
| 31 Mar 2016 | £187 | £11K |
Where Sonar Data Ltd is registered
The registered office is in Chesterfield (S41), in the Chesterfield local authority area, East Midlands. Show S41 7PH on a map.
Other trade companies in S41
- You Motors LtdMotor traders
- Lets Volt LimitedElectricians
- LD Flooring Group LtdFloor and wall tilers
- DB Power Solutions LtdMachinery repair and installation
- Atk Arb Maintenance LtdLandscapers and gardeners
- Convertspace LtdBuilders
- TGH Industrial Spray Services LtdPainters and decorators
- 3B'S Electrical LtdElectricians
Also registered at this address
16 other companies use the same registered office as Sonar Data Ltd.
- 3B'S Electrical LtdElectricians
- Belfry Access LtdScaffolders
- Croft Rail Engineering LtdMachinery repair and installation
- D E & P Dolphin LtdPlumbers and heating engineers
- Estate Motors (Chesterfield) Ltd.Motor traders
- Fortis Brickwork LimitedBuilders
- I B Electrical Maintenance LtdElectricians
- Intake Construction Solutions LtdSpecialist contractors
- J K Specialist Interiors Ltd.Joiners and carpenters
- M. J. D. (Mansfield) LimitedProperty developers
- Malyon Developments LtdProperty developers
- MDW Services Chesterfield LimitedScaffolders
- Melwood Projects LimitedSpecialist contractors
- NS Mechanical Services LtdProperty developers
- Sterling Construction & Building LtdInstallers
- Trinet Communications LtdSpecialist contractors
What happens if Sonar Data 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 06246168
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 May 2007 (19 years ago)
- Registered office
- 32A Newbold Road, Chesterfield, Derbyshire, S41 7PH
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 14 May 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Chesterfield
Other active specialist construction companies registered in Chesterfield.
- Span Engineering Ltd2012
- Spire Access Solutions Ltd2019
- Spire Steel Structures Ltd2025
- Stonecraft Developments Limited2015
- Summit Property & Groundworks Limited2026
- SW Commercial Services Limited2016
- T Godber Limited2017
- T N Renewable Energy Limited2023
All specialist construction companies in Chesterfield · All trades in Chesterfield · Specialist contractors across the UK
Frequently asked questions
When are Sonar Data Ltd's accounts due?
Sonar Data Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Sonar Data Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Sonar Data Ltd still trading?
Sonar Data 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 Sonar Data Ltd do?
Sonar Data Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Sonar Data Ltd?
Sonar Data Ltd was incorporated on 14 May 2007, 19 years ago.
What is the penalty if Sonar Data 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 Sonar Data 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.