- Companies
- Civil engineering
- Glasgow
- Doig and Smith Ltd
Doig and Smith Ltd
- Company number
- SC372452
- Incorporated
- 5 Feb 201016 years trading
- Registered office
- 1ST Floor Onyx Building, 215 Bothwell Street, Glasgow, G2 7EZ
- Nature of business
- Construction of other civil engineering projects n.e.c.
Doig and Smith Ltd is a 16-year-old private limited company registered in Glasgow, company number SC372452, one of 258 civil engineering contractors in Glasgow. 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 down £44K (-1.9%) on the year before, to £2.2M.
- Net assets rose in 5 of 6 year-on-year comparisons on record.
- Current assets of £1.1M against £818K owed within a year: 1.4 times cover.
- 50 employees on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | £2.2M | £72K | £1.1M | £818K | 50 |
| 29 Feb 2024 | £2.3M | £260K | £1.4M | £1.1M | 50 |
| 28 Feb 2023 | £2.2M | £218K | £1.2M | £1M | 49 |
| 28 Feb 2022 | £1.7M | £23K | £1.1M | £1.1M | 53 |
| 28 Feb 2021 | £1.3M | £87K | £1M | £1.3M | 62 |
| 29 Feb 2020 | £1M | £945 | £1.3M | £1.6M | 72 |
| 28 Feb 2019 | £737K | £1,405 | £1.2M | £1.5M | 69 |
Public contracts won
Doig and Smith Ltd has 2 public sector contract awards on record, from 2023 to 2026. Source: Contracts Finder and Find a Tender award notices. For all 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. These were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- SSE plc1 award
- Scotland Excel1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| SSE plc | Project, Commercial & Contract Management | Ceiling, not shown | 27 Feb 2026 |
| Scotland Excel | Building Construction Consultancy | Ceiling, not shown | 19 Apr 2023 |
Where Doig and Smith Ltd is registered
The registered office is in Glasgow (G2), in the Glasgow City local authority area, Scotland. Show G2 7EZ on a map.
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What happens if Doig and Smith 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
- SC372452
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 February 2010 (16 years ago)
- Registered office
- 1ST Floor Onyx Building, 215 Bothwell Street, Glasgow, G2 7EZ
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 5 February 2026
- Charges (mortgages)
- 3 outstanding of 5 registered
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Glasgow
Other active civil engineering contractors registered in Glasgow.
- DS Project Management Ltd2026
- E Y Electrical Ltd2026
- East End Civils Ltd2010
- Ebs Construction Limited1992
- Eldon Developments Ltd.1978
- Elly Contracts Ltd2018
- Endrick Civil Engineering Limited2005
- Energy Io Projects Ltd2026
All civil engineering contractors in Glasgow · All trades in Glasgow · Civil engineering across the UK
Frequently asked questions
When are Doig and Smith Ltd's accounts due?
Doig and Smith Ltd's next accounts are due at Companies House by 30 November 2026 (in 49 days), covering the period to 28 February 2026.
When is Doig and Smith 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 Doig and Smith Ltd still trading?
Doig and Smith 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 Doig and Smith Ltd do?
Doig and Smith Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Doig and Smith Ltd?
Doig and Smith Ltd was incorporated on 5 February 2010, 16 years ago.
Has Doig and Smith Ltd won public sector contracts?
Yes. Doig and Smith Ltd has 2 contract awards from public bodies on Contracts Finder and Find a Tender, most recently from SSE plc.
What is the penalty if Doig and Smith 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 Doig and Smith 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.