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C3

Carbon 3 Ltd

Construction work · Maidstone
SME

Carbon 3 Ltd offers professional renewable energy services across various sectors, focusing on decarbonisation solutions including design, supply, installation, and maintenance of renewable energy systems.

carbon3.co.uk ↗

Summary from the supplier’s website — unverified

Compare peers
Awarded
£89.8m
Live
15
Buyers
13
12m
£8.1m
At a glance
  • Quick answer
Profile
  • Social value
  • ESG & policies
  • Capabilities1
  • Buyer references
  • Accreditations
Track record · verified
  • KPI performance
  • Contracts15 / 20
  • Top buyers13
  • Category mix
  • Geography
  • Peers5
Trust & risk
  • Red flags0
  • Compliance
  • Modifications
  • News
Company
  • Companies House
  • Financial
  • Org tree
Quick answer — Carbon 3 LtdUpdated 13 Jul 2026

At a glance · for buyers and watchdogs

Carbon 3 Ltd has won £89.8m across 13 public-sector buyers, with 15 live contracts. No active Companies House risk flags.

Why: top buyer South East Consortium at 59% · 100% in Construction work · 0 active risk flags · 0 modifications.

Decision signals
0Active red flags
ActiveCompany status
15 of 20Live contracts
59%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.

◐ From website & notices
Sectors served · 1/8
Central government✓
Local government✓
NHS & health✓
Housing✓
Utilities & energy✓
Financial services✓
Education✓
Defence✓
Services · 7
Solar PVBattery StorageElectric Vehicle ChargingO&M MonitoringHeat PumpsDesignFunding Options
Frameworks & DPS · 1 from notices
  • Framework Agreement for the Supply and Installation of Low and Zero Carbon TechnologiesPROCURE PLUS HOLDINGS LIMITED · £23.1m

Extracted automatically from carbon3.co.uk on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.

Case studies · 4

Delivery stories from the supplier’s website. Clients are not yet cross-checked against award records.

◐ From supplier website
EPC C for Housing ProviderHousing Provider ↗Local Authority Depot & Office Building DecarbonisedLocal Authority ↗Legacy Solar Removal and ReplacementSocial Housing ↗Large Scale Funded Hospital DecarbonisationHealth ↗

Extracted automatically from carbon3.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.

✓ 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 · 15 live · 5 historic

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

✓ From notices
TitleBuyerCPVAwardedValueTermStatus
BCP council property solar PV and associated system installation
Bournemouth Christchurch and Poole Council—01 Jul 2026—4 yrsLive
Open framework to supply and install Solar PV
West Mercia Energy—08 Jun 2026£8.0m7.9 yrspending
GMCA1677 Wigan CFAS Solar PV And Optional Battery Storage
Greater Manchester Combined Authority - GMP4530000014 Jan 2026£75k2 moClosed
Heating, Electrical and Decarbonisation Framework
Central and Cecil Housing Trust5072000006 Jan 2025£1.1m4 yrsLive
Fusion21 Heating, Renewables, and Electrical Framework
Fusion21 Members Consortium4523214130 Jan 2024£4.0m4 yrsLive
Zero Carbon Framework - Part 2
South East Consortium4526264009 Jun 2022£52.6m3.8 yrsClosed
Framework Agreement for the Supply and Installation of Low and Zero Carbon Technologies
PROCURE PLUS HOLDINGS LIMITED4523214122 Nov 2021£23.1m4 yrsClosed
Fusion21 Heating, Renewables, and Electrical Framework
Fusion21 Members Consortium45331100———Live
Solar PV Across Community Sites
Guy's and St Thomas' NHS Foundation Trust————Live
Supply and/or Install of Rooftop Solar Photovoltaic Systems and Associated Equipment Y24013
Kent County Council (t/a LASER Energy)09330000———Live
Total live value £5.1m · mean award £4.5m1–10 of 20

Top buyers · 13 buyers · top 3 = 93%

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

✓ From notices
1
South East Consortium
3 contracts
59%
since 2022
2
PROCURE PLUS HOLDINGS LIMITED
2 contracts
26%
since 2021
3
West Mercia Energy
1 contract
9%
since 2026
4
Fusion21 Members Consortium
2 contracts
4%
since 2024
5
Central and Cecil Housing Trust
2 contracts
1%
since 2025
6
GOLDING HOMES LIMITED
1 contract
1%
7
Greater Manchester Combined Authority - GMP
2 contracts
0%
since 2026
8
Bournemouth Christchurch and Poole Council
1 contract
0%
since 2026
9
Guy's and St Thomas' NHS Foundation Trust
1 contract
0%
10
Kent County Council (t/a LASER Energy)
2 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 East7 contracts
60%
North West6 contracts
30%
West Midlands1 contract
9%
London4 contracts
1%
South West1 contract
0%

Peers

Suppliers with overlapping CPVs & buyers (last 24m). Carbon 3 Ltd highlighted.

✓ From notices
SupplierSME?Awarded · 24mContracts
LF
LIVGREEN FUTURES LIMITED
No£25.0m1
MS
MONKS SECURITY SYSTEMS LTD
Yes£11.5m1
LG
Liberty Gas Group Limited
No£10.4m1
C3
Carbon 3 Ltd
Yes£8.1m—
CP
CITY PLUMBING SUPPLIES HOLDINGS LIMITED
No£6.0m3
AM
Ameresco Limited
Yes£4.4m10
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 Dec 2024
Confirmation statement
Up to date
Next due 15 Oct 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.
12318554
Status
Active
Type
Private limited
Incorporated
18 Nov 2019
Reg. office
61 London Road, Maidstone, ME16 8TX
SIC codes
43999 · 71122
Last accounts
31 Dec 2024
Next accounts due
30 Sept 2026

Directors & PSC

  • COLLINS, Samuel John — director
    Appointed 01 Feb 2021
  • CURTIS, Julian Laver — director
    Appointed 02 Oct 2020
  • GOLDING, Andrew Neil — director
    Appointed 15 Jan 2020
  • BRADBURY, Paul — director
    Appointed 18 Nov 2019
  • RANSOM, Ian Robert — director
    Appointed 18 Nov 2019
  • SHIPP, Michael Kevin — director
    Appointed 18 Nov 2019
  • Samuel John Collins — person with significant control
    significant influence or control
  • Mr Paul Bradbury — person with significant control
    significant influence or control
  • Mr Michael Kevin Shipp — person with significant control
    significant influence or control
  • Mr Ian Robert Ransom — person with significant control
    significant influence or control

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
CARBON3 LTD
12318554 · this company

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