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Diamond Build PLC

London
Largeliquidation
diamondbuildgroup.com ↗
Compare peers
Awarded
£411.1m
Live
18
Buyers
22
12m
—
At a glance
  • Quick answer
Profile
  • Social value
  • ESG & policies
  • Capabilities5
  • Buyer references
  • Accreditations
Track record · verified
  • KPI performance
  • Contracts18 / 45
  • Top buyers22
  • Category mix
  • Geography
  • Peers5
Trust & risk
  • Red flags5
  • Compliance
  • Modifications
  • News
Company
  • Companies House
  • Financial
  • Org tree
Quick answer — Diamond Build PLCUpdated 06 Jul 2026

At a glance · for buyers and watchdogs

Diamond Build PLC has won £411.1m across 22 public-sector buyers, with 18 live contracts.

Why: top buyer Devon County Council at 66% · 5 active risk flags · 0 modifications.

Decision signals
5Active red flags
liquidationCompany status
18 of 45Live contracts
66%Top-buyer concentration
—Category exposure
0Contract modifications
If you're a buyer:CapabilitiesReferencesKPIComplianceWatchdog?FlagsModificationsConcentrationNews

Social value

Commitments mapped to the Government Social Value Model themes.

⚑ Self-reported
—

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.

ESG & policies vault · 0/5

Key governance & sustainability policies. Published documents link out; missing ones are greyed.

↔ Cross-checked
Net-zero planNot provided✓
Modern slavery statementNot provided✓
EDI policyNot provided✓
Anti-briberyNot provided✓
Data protectionNot provided✓

Capabilities

What this supplier does, where they sit, who they sell to.

⚑ Self-reported & from notices

Service tags, sectors served and target geographies appear here once a supplier verifies ownership of this profile.

Frameworks & DPS · 5 from notices
  • CPF2040-21 SCF Residential Delivery and Development FrameworkDevon County Council · £272.0m
  • Decarbonisation Retro-Fit Framework (including Refurbishment works).PROSPER · £33.3m
  • UntitledIslington · £2.9m
  • Adaptation and Refurbishment Works to two Children & Family Centres (CFC's) at Cotmandene CFC and Blenheim CFCLondon Borough of Bromley · £980k
  • Hillcross, Joseph Hood & Sherwood Primary Schools ceiling, lighting, fire alarm and toilet replacement plus external resurfacing, drainage and fencing worksLondon Borough of Merton · £270k

Case studies

Delivery stories the supplier has published, with sector and outcome.

⚑ Self-reported
—

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.

✓ Confirmed by buyer
—

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.

↔ Cross-checked
—

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.

✓ Verified
84

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 · 18 live · 27 historic

Pulled from Contracts Finder & Find a Tender. Most recent first.

✓ From notices
TitleBuyerCPVAwardedValueTermStatus
South East Consortium Internal & External Works Framework
South East Consortium4545310024 Oct 2023£14.7m4 yrsLive
Anglo-Portuguese School of London (APSoL) - Main Works (con_22193)
Department for Education4500000017 Jul 2023£8.7m14 moClosed
Fusion21 Refurbishment, Construction, New Build & Modular Building Framework
Fusion21 Members Consortium4500000022 May 2023£5.4m4 yrsLive
Fusion21 Reactive Repairs & Empty Buildings Framework
Fusion21 Members Consortium4500000001 Oct 2022£2.6m4 yrsLive
Decarbonisation Retro-Fit Framework (including Refurbishment works).
PROSPER0930000015 Aug 2022£33.3m2 yrsClosed
Fire-related works framework
Network Homes4534300001 May 2022£4.3m4 yrsClosed
Fire-related works framework
Network Homes4534300001 May 2022£4.3m4 yrsClosed
Adaptation and Refurbishment Works to two Children & Family Centres (CFC's) at Cotmandene CFC and Blenheim CFC
London Borough of Bromley4500000007 Feb 2022£980k4 moClosed
CPF2040-21 SCF Residential Delivery and Development Framework
Devon County Council4521100023 Nov 2021£272.0m4 yrsClosed
Estates and Facilities Management Services (maintenance and minor works, security: guarding & reception and Cleaning)
London Universities Purchasing Consortium4216000008 Nov 2021£6.0m4 yrsClosed
Total live value £22.7m · mean award £9.1m1–10 of 45

Top buyers · 22 buyers · top 3 = 82%

Share of awarded value. Concentration fires above 40% for any single buyer.

✓ From notices
1
Devon County Council
2 contracts
66%
since 2021
2
PROSPER
2 contracts
8%
since 2022
3
London Borough of Camden
1 contract
8%
since 2019
4
South East Consortium
4 contracts
5%
since 2021
5
Islington
4 contracts
4%
since 2016
6
Fusion21 Members Consortium
8 contracts
3%
since 2019
7
Department for Education
2 contracts
2%
since 2020
8
Network Homes
3 contracts
2%
since 2022
9
London Universities Purchasing Consortium
2 contracts
1%
since 2021
10
London Borough of Merton
2 contracts
0%
since 2017

Geography

Distribution of awarded value by buyer region.

✓ From notices
UK · schematic only
South West2 contracts
68%
London11 contracts
13%
North East2 contracts
8%
South East14 contracts
8%
North West8 contracts
3%
Eastern5 contracts
0%
Yorkshire1 contract
0%

Peers

Suppliers with overlapping CPVs & buyers (last 24m). Diamond Build PLC highlighted.

✓ From notices
SupplierSME?Awarded · 24mContracts
JS
John Sisk and Son Ltd
No£67.8m1
KC
Kier Construction
Yes£35.4m2
WD
Willmott Dixon Construction Limited
No£28.1m2
CC
Clegg Construction Limited
No£18.8m2
MS
Morgan Sindall Construction and Infrastructure
No£12.5m1
DB
Diamond Build PLC
No——
Compare peers →

Red flags · 5 active

Automated scan of Companies House status, charges and insolvency records.

✓ Verified
Company status: Liquidation. Companies House does not currently list this company as actively trading.
Insolvency case on record (1). Most recent: creditors voluntary liquidation appointed 19 Jan 2024.
2 outstanding charges. Most recent secured in favour of Barclays Bank PLC.
Annual accounts overdue. Filing was due 30 Jun 2024.
Confirmation statement overdue. Statement was due 14 Apr 2024.

Compliance scorecard

Derived from Companies House filings — not a full supplier-assurance check.

↔ Cross-checked
Trading status
Liquidation
Not currently active
Annual accounts
Overdue
Due 30 Jun 2024
Confirmation statement
Overdue
Due 14 Apr 2024
Outstanding charges
2
2 security interests registered
Insolvency history
1 case
Most recent: creditors voluntary liquidation · 19 Jan 2024
Certifications (ISO, Cyber Essentials, Living Wage, B-Corp, modern-slavery) are supplier self-reported and appear once a claimed profile adds them.

Modifications

Variations to awarded contracts logged under Procurement Act 2023 s.74.

✓ From notices
±

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.

✓ Live sync

Registered details

Company no.
01340271
Status
Liquidation
Type
Public limited
Incorporated
23 Nov 1977
Reg. office
6th Floor 9 Appold Street, London, EC2A 2AP
SIC codes
41201 · 41202
Last accounts
31 Dec 2022
Next accounts due
30 Jun 2024

Directors & PSC

  • GRAY, John Arthur — director
  • BROOKS, Paul Andrew — director
    Appointed 20 Jan 2009
  • Diamond Build (Holdings) Plc — person with significant control
    ownership of shares 75 to 100 percent · voting rights 75 to 100 percent · right to appoint and remove directors

Financial

Filed accounts from Companies House.

↔ From Cos 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.

↔ From Cos House
DIAMOND BUILD PLC
01340271 · this company

Independent. No parent company or subsidiaries recorded at Companies House for this entity.