At a glance · for buyers and watchdogs
Duncan Mackay & Sons Ltd has won — across 3 public-sector buyers, with 4 live contracts. No active Companies House risk flags.
Why: top buyer Comhairle nan Eilean Siar at 0% · 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.
Extracted automatically from dmackayandsons.co.uk on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.
Case studies · 8
Delivery stories from the supplier’s website. Clients are not yet cross-checked against award records.
Extracted automatically from dmackayandsons.co.uk on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.
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 · 4 live · 0 historic
Pulled from Contracts Finder & Find a Tender. Most recent first.
| Title | Buyer | CPV | Awarded | Value | Term | Status |
|---|---|---|---|---|---|---|
| Comhairle nan Eilean Siar | 45233220 | — | — | — | Live | |
| Scottish Water | 90513900 | — | — | — | Live | |
| Scotland Excel | 34100000 | — | — | — | Live | |
| Comhairle nan Eilean Siar | 50230000 | — | — | — | Live |
Top buyers · 3 buyers · top 3 = 0%
Share of awarded value. Concentration fires above 40% for any single buyer.
Geography
Distribution of awarded value by buyer region.
Peers
Suppliers with overlapping CPVs & buyers (last 24m). Duncan Mackay & Sons Ltd highlighted.
| Supplier | SME? | Awarded · 24m | Contracts |
|---|---|---|---|
| No | £350.0m | 2 | |
| Yes | £170.0m | 2 | |
| Yes | £28.0m | 2 | |
| No | £21.1m | 1 | |
| No | £4.2m | 3 | |
DM Duncan Mackay & Sons Ltd | No | — | — |
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.
- SC194220
- Status
- Active
- Type
- Private limited
- Incorporated
- 10 Mar 1999
- Reg. office
- Parkend Industrial Estate, Sandwick, Isle Of Lewis, HS2 0AN
- SIC codes
- 41201 · 42210 · 42990 · 43110
- Last accounts
- 31 Mar 2025
- Next accounts due
- 31 Dec 2026
Directors & PSC
- MACDONALD, Debbie Kerr — directorAppointed 01 Jan 2026
- MACKAY, Iain Hector — directorAppointed 10 Mar 1999
- Mr Iain Hector Mackay — 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 · 1/5
Commitments mapped to the Government Social Value Model themes. Each is tagged self-reported or from the website.
Extracted automatically from dmackayandsons.co.uk on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.