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ND

Nexus Decommissioning Alliance

Architecture & engineering
Large
Not Provided ↗
Compare peers
Awarded
£24.2m
Live
0
Buyers
2
12m
£1.5m
At a glance
  • Quick answer
Profile
  • Social value
  • ESG & policies
  • Capabilities1
  • Buyer references
  • Accreditations
Track record · verified
  • KPI performance
  • Contracts0 / 43
  • Top buyers2
  • Category mix
  • Geography
  • Peers5
Trust & risk
  • Red flags0
  • Compliance
  • Modifications
  • News
Company
  • Companies House
  • Financial
  • Org tree
Quick answer — Nexus Decommissioning AllianceUpdated 20 Jul 2026

At a glance · for buyers and watchdogs

Nexus Decommissioning Alliance has won £24.2m across 2 public-sector buyers, with 0 live contracts.

Why: top buyer Sellafield Limited at 87% · 92% in Architecture & engineering · 0 active risk flags · 0 modifications.

Decision signals
0Active red flags
No CH recordCompany status
0 of 43Live contracts
87%Top-buyer concentration
92%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 · 1 from notices
  • DDP00710 - RAHF Op 5&6 MFU design and procurementSellafield Limited · £64k

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 · 0 live · 43 historic

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

✓ From notices
TitleBuyerCPVAwardedValueTermStatus
DDP00788- R2 Gallows Hoist
Sellafield Limited4511110012 Sept 2025£112k1 moClosed
DDP00774 - OP10 U3 Cell Line Dismantle Main Site Works
Sellafield Limited7132000004 Aug 2025£1.4m8 moClosed
DDP00783 - F113 Demolition
Sellafield Limited4511110011 Jun 2025£84k5 moClosed
DDP00778 - R4 Gallows Hoist
Sellafield Limited4511110002 Apr 2025£100k3 moClosed
DDP00776 - FRTP Cabins Demolition
Sellafield Limited4511110010 Mar 2025£224k3 moClosed
DDP00777 - B1188 Demolition
Sellafield Limited4511110005 Mar 2025£75k2 moClosed
DDP00746 - RAD WAGR Main Demolition
Sellafield Limited4511110003 Feb 2025£4.6m16 moClosed
DDP00754 - B52 PIE ILW - Phase 2A Prelim Design
Sellafield Limited9052000027 Jan 2025£1.5m14 moClosed
DDP00767 - C0176 Demolition
Sellafield Limited4511110030 Oct 2024£200k3 moClosed
DDP00764 RAD Calder R4 short BH enabling works
Sellafield Limited4511110014 Oct 2024£67k6 moClosed
Total live value — · mean award £564k1–10 of 43

Top buyers · 2 buyers · top 3 = 100%

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

✓ From notices
1
Sellafield Limited
36 contracts
87%
since 2018
2
CTM Portal for the NDA Shared Services Alliance
7 contracts
13%
since 2017

Category mix

CPV-division share of last-12m awarded value. Single-category exposure: 92%.

✓ From notices
Architecture & engineering71
92%
Construction work45
8%
⚠ Concentration: 92% of recent awarded value sits in a single CPV division. A category-specific downturn would materially affect revenue.

Geography

Distribution of awarded value by buyer region.

✓ From notices
UK · schematic only
North West43 contracts
100%

Peers

Suppliers with overlapping CPVs & buyers (last 24m). Nexus Decommissioning Alliance highlighted.

✓ From notices
SupplierSME?Awarded · 24mContracts
TC
Topcoat Construction Limited / TCL Group
Yes£67.6m2
IW
Ian Williams
No£67.6m2
WH
Westone Housing
Yes£67.6m2
ER
EQUANS Regeneration Limited
No£67.6m2
CH
C Hanlon Facilities Management Ltd
Yes£67.6m2
ND
Nexus Decommissioning Alliance
No£1.5m—
Compare peers →

Red flags · 0 active

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

✓ Verified
No Companies House record linked — automated risk checks unavailable.

Compliance scorecard

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

↔ Cross-checked
No Companies House record linked — statutory compliance checks unavailable.

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

Registered details, directors and PSC.

✓ Live sync
🏛

No Companies House record linked

No Companies House number on file — this supplier may be overseas, a sole trader or a consortium.

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
—
— · this company

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