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  4. ARB MECHANICAL ENGINEERING LIMITED
AM

ARB MECHANICAL ENGINEERING LIMITED

Construction work · Portsmouth
Large
arb.co.uk ↗
Compare peers
Awarded
£10.1m
Live
8
Buyers
5
12m
£424k
At a glance
  • Quick answer
Profile
  • Social value
  • ESG & policies
  • Capabilities
  • Buyer references
  • Accreditations
Track record · verified
  • KPI performance
  • Contracts8 / 20
  • Top buyers5
  • Category mix
  • Geography
  • Peers5
Trust & risk
  • Red flags0
  • Compliance
  • Modifications
  • News
Company
  • Companies House
  • Financial
  • Org tree
Quick answer — ARB MECHANICAL ENGINEERING LIMITEDUpdated 20 Jul 2026

At a glance · for buyers and watchdogs

ARB MECHANICAL ENGINEERING LIMITED has won £10.1m across 5 public-sector buyers, with 8 live contracts. No active Companies House risk flags.

Why: top buyer University Hospitals Dorset NHS Foundation Trust at 79% · 100% in Construction work · 0 active risk flags · 0 modifications.

Decision signals
0Active red flags
ActiveCompany status
8 of 20Live contracts
79%Top-buyer concentration
100%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.

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 · 8 live · 12 historic

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

✓ From notices
TitleBuyerCPVAwardedValueTermStatus
MWF Lot 6 Crestwood Community School (Cherbourg) - Heating Enabling Works - AWARD
Hampshire County Council4535000003 Nov 2025£24k2 moClosed
MWF - Lot 6 - Winchester Law Courts - Boiler And Controls Upgrades - AWARD
Hampshire County Council4535000018 Aug 2025£400k2 moClosed
Approved Contractors Framework List v2 (ACFL)
University Hospitals Dorset NHS Foundation Trust4500000025 Oct 2024£7.9m4 yrsLive
MWF - Lot 6 - Burnham Copse Primary School - Boiler Efficiency Upgrade and Replacement - AWARD
Hampshire County Council4535000024 Jul 2023£145k2 moClosed
Montefiore Halls Calorifier & Boiler Replacements
UNIVERSITY OF SOUTHAMPTON4533111027 Apr 2023£243k2 moClosed
MWF - Lot 6 - Heating Improvements - Court Moor School - AWARD
Hampshire County Council4535000024 Jul 2023£24k1 moClosed
Existing Water and Heating Pipework Replacement Works at Lewes Victoria Hospital
NHS Property Services4530000027 Jun 2022£527k4 moClosed
MWF - Calshot Activity Centre, Clere School - De-Carbonisation Grant - Oil to Gas Lot 6 - AWARD
Hampshire County Council4535000006 Dec 2021£343k3 moClosed
Minor Works Framework 2021-2025 - AWARD
Hampshire County Council4500000028 Jan 2022£18k4 yrsClosed
MWF - Kings School - Replace Boilers in Admin Block - AWARD
Hampshire County Council4535000029 Nov 2021£69k2 moClosed
Total live value £7.9m · mean award £504k1–10 of 20

Top buyers · 5 buyers · top 3 = 98%

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

✓ From notices
1
University Hospitals Dorset NHS Foundation Trust
2 contracts
79%
since 2024
2
Hampshire County Council
10 contracts
11%
since 2017
3
NHS Property Services
4 contracts
8%
since 2021
4
UNIVERSITY OF SOUTHAMPTON
1 contract
2%
since 2023
5
National Oceanography Centre
3 contracts
0%

Category mix

CPV-division share of last-12m awarded value. Single-category exposure: 100%.

✓ From notices
Construction work45
100%
⚠ Concentration: 100% 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
South West2 contracts
79%
South East14 contracts
14%
North West4 contracts
8%

Peers

Suppliers with overlapping CPVs & buyers (last 24m). ARB MECHANICAL ENGINEERING LIMITED 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
AM
ARB MECHANICAL ENGINEERING LIMITED
No£424k—
Compare peers →

Red flags · 0 active

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

✓ Verified
✓ Clean. No active risk signals from Companies House status, charges or insolvency records.

Compliance scorecard

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

↔ Cross-checked
Trading status
Active
Live at Companies House
Annual accounts
Up to date
Last made up to 31 Mar 2025
Confirmation statement
Up to date
Next due 20 Dec 2026
Outstanding charges
0
No charges registered
Insolvency history
None
No insolvency cases registered
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.
06425216
Status
Active
Type
Private limited
Incorporated
13 Nov 2007
Reg. office
3 Acorn Business Centre Northarbour Road, Cosham, Portsmouth, Hampshire, PO6 3TH
SIC codes
43220
Last accounts
31 Mar 2025
Next accounts due
05 Jan 2027

Directors & PSC

  • KIRBY, Justin Carl — director
    Appointed 28 Apr 2025
  • TYSOE, Adam — director
    Appointed 28 Apr 2025
  • WEST, Matthew — director
    Appointed 28 Apr 2025
  • Arb Mechanical Engineering Employee Ownership Trustee Limited — 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
ARB MECHANICAL ENGINEERING LIMITED
06425216 · this company

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