- Companies
- Civil engineering
- Oban
- Alchemy Plant & Contracting Ltd
Alchemy Plant & Contracting Ltd
- Company number
- SC392776
- Incorporated
- 2 Feb 201115 years trading
- Registered office
- Port Na Cuile, Gallanach Road, Oban, PA34 4QH
- Nature of business
- Construction of other civil engineering projects n.e.c.
Alchemy Plant & Contracting Ltd is a 15-year-old private limited company registered in Oban, company number SC392776, one of 17 civil engineering contractors in Oban. Its next accounts are due at Companies House on 30 November 2027, and the CT600 for the period to 28 February 2027 is due at HMRC on 28 February 2028.
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 £28K (+2.8%) on the year before, to £1M.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £607K against £140K owed within a year: 4.3 times cover.
- 12 employees on average, up from 11 the year before.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2026 | £1M | £442K | £607K | £140K | 12 |
| 28 Feb 2025 | £1000K | £395K | £530K | £154K | 11 |
| 29 Feb 2024 | £728K | £211K | £350K | £193K | 10 |
| 28 Feb 2023 | £737K | £51K | £464K | £324K | 14 |
| 28 Feb 2022 | £525K | £49K | £126K | £180K | 15 |
| 28 Feb 2021 | £419K | £50K | £193K | £301K | 14 |
| 29 Feb 2020 | £331K | £76K | £156K | £235K | 13 |
| 28 Feb 2019 | £359K | £4,723 | £106K | £144K | 12 |
| 28 Feb 2018 | £356K | £48K | £240K | £167K | 11 |
| 28 Feb 2017 | £379K | £15K | £305K | £207K | 11 |
Public contracts won
Alchemy Plant & Contracting Ltd has one public sector contract award on record; the ones with their own published value total £1.1M (2025). 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 |
|---|---|---|---|
| Caledonian Maritime Assets Ltd (Utility) | AtoN & Moorings - Maintenance & Repair | £1.1M | 13 Aug 2025 |
Where Alchemy Plant & Contracting Ltd is registered
The registered office is in Oban (PA34), in the Argyll and Bute local authority area, Scotland. Show PA34 4QH on a map.
Other trade companies in PA34
- Tidy Raccoons LtdMechanics and garages
- A&B Automotive LtdMechanics and garages
- Pure Clean Laundry LtdCleaning companies
- Clarity Services Oban LtdProperty developers
- West Coast Autoworks LimitedMechanics and garages
- Kerrera Marine Services LimitedMachinery repair and installation
- Sas Auto Services (Scotland) LtdMechanics and garages
- Aurora Rising Collective LtdProperty developers
Also registered at this address
1 other company uses the same registered office as Alchemy Plant & Contracting Ltd.
- Seawork (Scotland) LimitedCivil engineering
What happens if Alchemy Plant & Contracting 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2027 to 31 Dec 2027 | £150 |
| 1 to 3 months late | 1 Jan 2028 to 29 Feb 2028 | £375 |
| 3 to 6 months late | 1 Mar 2028 to 31 May 2028 | £750 |
| More than 6 months late | From 1 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- SC392776
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 February 2011 (15 years ago)
- Registered office
- Port Na Cuile, Gallanach Road, Oban, PA34 4QH
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 29 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2026
- Last confirmation statement
- 2 February 2026
- Charges (mortgages)
- 2 outstanding of 2 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 Oban
Other active civil engineering contractors registered in Oban.
- Amax Contractors Limited2002
- D & K Lafferty & Company Limited2003
- Gordon George Construction Services Limited2008
- Hamill Site Management Services Ltd2023
- I Miles Contracting Ltd2015
- J.A.M Drilling Int Ltd2025
- J.A.M Group Holdings Ltd2024
- Kmass Marine Limited2019
All civil engineering contractors in Oban · All trades in Oban · Civil engineering across the UK
Frequently asked questions
When are Alchemy Plant & Contracting Ltd's accounts due?
Alchemy Plant & Contracting Ltd's next accounts are due at Companies House by 30 November 2027 (in 413 days), covering the period to 28 February 2027.
When is Alchemy Plant & Contracting Ltd's CT600 due?
The CT600 for the period to 28 February 2027 is due at HMRC by 28 February 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2027.
Is Alchemy Plant & Contracting Ltd still trading?
Alchemy Plant & Contracting 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 Alchemy Plant & Contracting Ltd do?
Alchemy Plant & Contracting Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Alchemy Plant & Contracting Ltd?
Alchemy Plant & Contracting Ltd was incorporated on 2 February 2011, 15 years ago.
Has Alchemy Plant & Contracting Ltd won public sector contracts?
Yes. Alchemy Plant & Contracting Ltd has one contract award from public bodies on Contracts Finder and Find a Tender (those with their own published value total £1.1M), most recently from Caledonian Maritime Assets Ltd (Utility).
What is the penalty if Alchemy Plant & Contracting 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 Alchemy Plant & Contracting 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.