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JK

Japanese Knotweed Ltd

Construction work
SME

Japanese Knotweed Ltd specializes in the identification, treatment, and removal of Japanese knotweed and other invasive plants. They offer services for both residential and commercial clients, ensuring compliance with legal requirements.

japaneseknotweed.co.uk ↗

Summary from the supplier’s website — unverified

Compare peers
Awarded
£1.7m
Live
14
Buyers
17
12m
£66k
At a glance
  • Quick answer
Profile
  • Social value
  • ESG & policies
  • Capabilities6
  • Buyer references
  • Accreditations
Track record · verified
  • KPI performance
  • Contracts14 / 26
  • Top buyers17
  • Category mix
  • Geography
  • Peers5
Trust & risk
  • Red flags0
  • Compliance
  • Modifications
  • News
Company
  • Companies House
  • Financial
  • Org tree
Quick answer — Japanese Knotweed LtdUpdated 13 Jul 2026

At a glance · for buyers and watchdogs

Japanese Knotweed Ltd has won £1.7m across 17 public-sector buyers, with 14 live contracts. No active Companies House risk flags.

Why: top buyer London Borough of Hounslow at 20% · 100% in Construction work · 0 active risk flags · 0 modifications.

Decision signals
0Active red flags
pendingCompany status
14 of 26Live contracts
20%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
Services · 4
Knotweed SurveyPre-sale, pre-purchase, and pre-construction assessments. ↗Herbicide Treatment PlanScheduled visits by qualified operatives with guaranteed results. ↗Knotweed RemovalOptions for complete knotweed removal including excavation. ↗Knotweed IdentificationFast and free expert identification services. ↗
Frameworks & DPS · 6 from notices
  • Highways Weed Spraying and Treatment of Invasive WeedsBlackburn With Darwen Borough Council · £160k
  • INVITATION TO TENDER FOR THE PROVISION OF WEED CONTROL SERVICESBasingstoke & Deane Borough Council · £128k
  • Dynamic Purchasing System (DPS) 85 Construction Works & Specialist Services for Housing, Commercial & Public Buildings and SchoolsNORTH TYNESIDE COUNCIL · £70k
  • Japanese Knotweed Eradication ProgrammeHalton Borough Council · £32k
  • Remediation of two areas of Japanese KnotweedBorough Council of Kings Lynn and West Norfolk · £30k
  • Scrub Clearance Humberhead Peatlands NNRNatural England · £11k

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

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 · 14 live · 12 historic

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

✓ From notices
TitleBuyerCPVAwardedValueTermStatus
CPU 8304 - Weed spray treatments for the adopted Highway.
Nottingham City Council4500000002 Mar 2026£66k6 moLive
Highways Weed Spraying and Treatment of Invasive Weeds
Blackburn With Darwen Borough Council7731200001 Mar 2025£160k1.7 yrsLive
Weed Control Programme
Halton Borough Council7731210001 Apr 2025£122k2 yrsLive
CPU 6252 The provision of Weed Spraying Services
Nottingham City Council9070000010 Jan 2025£132k3 yrsLive
Invasive Non-Native Species (INNS) Treatment
London Borough of Hounslow0300000013 Jan 2025£328k5 yrsLive
Lynemouth Japanese Knotweed Removal
The Coal Authority9070000028 May 2024£57k1 moClosed
INVITATION TO TENDER FOR THE PROVISION OF WEED CONTROL SERVICES
Basingstoke & Deane Borough Council7731200031 May 2024£128k12 moClosed
City Wide Weed Spraying Management Services
Plymouth City Council7731210007 Feb 2024£73k11 moClosed
City Weed Spraying Services
Southampton City Council7731200003 Jul 2023£300k2.3 yrsClosed
Weed Treatment Services - via YPO 881
Leicestershire County Council7731210002 May 2023£110k11 moClosed
Total live value £808k · mean award £64k1–10 of 26

Top buyers · 17 buyers · top 3 = 50%

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

✓ From notices
1
London Borough of Hounslow
2 contracts
20%
since 2024
2
Southampton City Council
3 contracts
18%
since 2023
3
Nottingham City Council
2 contracts
12%
since 2025
4
Blackburn With Darwen Borough Council
1 contract
10%
since 2025
5
Halton Borough Council
2 contracts
9%
since 2022
6
Basingstoke & Deane Borough Council
1 contract
8%
since 2024
7
Leicestershire County Council
1 contract
7%
since 2023
8
Plymouth City Council
3 contracts
4%
since 2024
9
NORTH TYNESIDE COUNCIL
1 contract
4%
since 2022
10
The Coal Authority
1 contract
3%
since 2024

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 East8 contracts
43%
East Midlands4 contracts
24%
North West3 contracts
21%
South West3 contracts
5%
North East1 contract
5%
Eastern2 contracts
3%
London2 contracts
1%

Peers

Suppliers with overlapping CPVs & buyers (last 24m). Japanese Knotweed Ltd highlighted.

✓ From notices
SupplierSME?Awarded · 24mContracts
SR
Suez Recycling and Recovery UK Ltd
No£360.0m2
MG
M GROUP HIGHWAYS LIMITED
No£117.8m1
TC
Topcoat Construction Limited / TCL Group
Yes£67.6m2
IW
Ian Williams
No£67.6m2
WH
Westone Housing
Yes£67.6m2
JK
Japanese Knotweed Ltd
Yes£66k—
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
Pending
Lookup in progress
Annual accounts
—
No filing on record
Confirmation statement
—
No filing on record
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.
00728170
Status
Pending
Type
—
SIC codes
—

Directors & PSC

No active officers or PSCs on record.

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
(pending)
00728170 · this company

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