At a glance · for buyers and watchdogs
John Gunn & Sons Ltd has won £5.3m across 10 public-sector buyers, with 7 live contracts. No active Companies House risk flags.
Why: top buyer Dounreay, a Divison of Magnox Limited at 68% · 100% in Construction work · 0 active risk flags · 0 modifications.
ESG & policies vault · 0/5
Key governance & sustainability policies. Published documents link out; missing ones are greyed.
Capabilities
What this supplier does, where they sit, who they sell to.
Service tags, sectors served and target geographies appear here once a supplier verifies ownership of this profile.
- D3300 Shaft Advanced Transition Works
Case studies
Delivery stories the supplier has published, with sector and outcome.
No case studies yet
Once a claimed supplier publishes delivery stories — the buyer, the sector, what was delivered and the outcome — they appear here.
Buyer references
Named public-sector contacts who have agreed to act as a reference.
No buyer references yet
Public-sector buyers can confirm they'll act as a reference for this supplier. Confirmed references — with the contract they relate to — show here.
Accreditations & memberships
Independently issued. Verification dates cross-checked against issuer registers.
No accreditations recorded
B-Corp, ISO, Cyber Essentials, Living Wage and similar credentials appear here once added by a claimed supplier and cross-checked against the issuing register.
KPI performance
Delivery, budget and satisfaction scores reported quarterly by buyers.
No verified KPI scores yet
Once buyers report contract KPIs — delivery on time, on budget, satisfaction, adoption and accessibility — a weighted grade and breakdown appear here.
Contracts · 7 live · 15 historic
Pulled from Contracts Finder & Find a Tender. Most recent first.
| Title | Buyer | CPV | Awarded | Value | Term | Status |
|---|---|---|---|---|---|---|
| Nuclear Restoration Services Limited (Dounreay) | 45200000 | 23 Jul 2025 | £297k | 3 mo | Closed | |
| Nuclear Restoration Services Limited (Dounreay) | 45233141 | 07 Nov 2024 | £113k | 3 mo | Closed | |
| Nuclear Restoration Services Limited (Dounreay) | 45111200 | 07 Nov 2024 | £30k | 1 mo | Closed | |
| NRS Dounreay | 45233226 | 16 Oct 2024 | £149k | 5 mo | Closed | |
| Nuclear Restoration Services (NRS) | 98391000 | 30 Sept 2024 | £57k | 3 mo | Closed | |
| Nuclear Restoration Services (NRS) | 45111100 | 12 Sept 2024 | £51k | 1 mo | Closed | |
| Nuclear Restoration Services Limited (Dounreay) | 45500000 | 03 Sept 2024 | £57k | 2 mo | Closed | |
| John Gunn & Sons Ltd | 45000000 | 24 Jul 2024 | £275k | 6 mo | Closed | |
| Dounreay, a Divison of Magnox Limited | 43411000 | 26 Feb 2024 | £38k | 3 mo | Closed | |
| Dounreay, a Divison of Magnox Limited | 45262300 | 25 Jan 2024 | £41k | 2 mo | Closed |
Top buyers · 10 buyers · top 3 = 86%
Share of awarded value. Concentration fires above 40% for any single buyer.
Category mix
CPV-division share of last-12m awarded value. Single-category exposure: 100%.
Geography
Distribution of awarded value by buyer region.
Peers
Suppliers with overlapping CPVs & buyers (last 24m). John Gunn & Sons Ltd highlighted.
| Supplier | SME? | Awarded · 24m | Contracts |
|---|---|---|---|
| No | £67.8m | 1 | |
| Yes | £67.6m | 2 | |
| No | £67.6m | 2 | |
| Yes | £67.6m | 2 | |
| No | £67.6m | 2 | |
JG John Gunn & Sons Ltd | No | £297k | — |
Red flags · 0 active
Automated scan of Companies House status, charges and insolvency records.
Compliance scorecard
Derived from Companies House filings — not a full supplier-assurance check.
Modifications
Variations to awarded contracts logged under Procurement Act 2023 s.74.
No modifications recorded
No published contract variations for this supplier. Modification notices appear here as they are issued under the Procurement Act 2023.
News mentions
UK trade press & nationals, matched to this supplier.
No news mentions found
We haven't matched any recent UK press coverage to this supplier. Mentions appear here automatically as they're published.
Companies House
Live sync — registered details, directors, PSC and SIC codes.
Registered details
- Company no.
- SC029399
- Status
- Active
- Type
- Private limited
- Incorporated
- 14 Apr 1953
- Reg. office
- Swiney, Lybster, Caithness, KW3 6BT
- SIC codes
- 41201
- Last accounts
- 31 Aug 2025
- Next accounts due
- 31 May 2027
Directors & PSC
- GUNN, Ian George — directorAppointed 11 Sept 1998
- John Gunn & Sons (Holdings) Ltd — person with significant controlownership of shares 75 to 100 percent · voting rights 75 to 100 percent · right to appoint and remove directors
Financial
Filed accounts from Companies House.
No financial filings on record
Turnover, profit and headcount appear here once audited or micro-entity accounts are filed at Companies House.
Org tree
Group structure and ownership.
Independent. No parent company or subsidiaries recorded at Companies House for this entity.
Social value
Commitments mapped to the Government Social Value Model themes.
No social-value commitments yet
Jobs, skills, environmental, inequality and community commitments appear here once a claimed supplier attributes them to awarded contracts, or once we detect them on the supplier’s website.