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  4. MAIN LINE (INSTRUMENTS) LIMITED
ML

MAIN LINE (INSTRUMENTS) LIMITED

Medical equipment · Kings Norton
Large

Main Line (Instruments) Limited is a UK supplier and calibrator of precision measurement and test instruments for industrial, scientific, and commercial applications. The company provides a wide range of calibration services, instrument hire, and sales of test and measurement equipment from leading manufacturers. Main Line Instruments serves clients in manufacturing, utilities, healthcare, and public sector organisations requiring accurate measurement solutions.

main-line.co.uk ↗

Summary from the supplier’s website — unverified

Compare peers
Awarded
£20.1m
Live
11
Buyers
15
12m
£235k
At a glance
  • Quick answer
Profile
  • Social value
  • ESG & policies
  • Capabilities2
  • Buyer references
  • Accreditations
Track record · verified
  • KPI performance
  • Contracts11 / 21
  • Top buyers15
  • Category mix
  • Geography
  • Peers5
Trust & risk
  • Red flags0
  • Compliance
  • Modifications
  • News
Company
  • Companies House
  • Financial
  • Org tree
Quick answer — MAIN LINE (INSTRUMENTS) LIMITEDUpdated 20 Jul 2026

At a glance · for buyers and watchdogs

MAIN LINE (INSTRUMENTS) LIMITED has won £20.1m across 15 public-sector buyers, with 11 live contracts. No active Companies House risk flags.

Why: top buyer HealthTrust Europe LLP (HTE) acting on behalf of at 66% · 99% in Medical equipment · 0 active risk flags · 0 modifications.

Decision signals
0Active red flags
ActiveCompany status
11 of 21Live contracts
66%Top-buyer concentration
99%Category exposure
0Contract modifications
If you're a buyer:CapabilitiesReferencesKPIComplianceWatchdog?FlagsModificationsConcentrationNews

Social value · 3/5

Commitments mapped to the Government Social Value Model themes. Each is tagged self-reported or from the website.

◐ From supplier website
Jobs1 commitment✓
SkillsNo commitment stated✓
Environment1 commitment✓
Tackling inequalityNo commitment stated✓
Community1 commitment✓
Jobs · 1
  • WebsiteDiversityEqual opportunities employer
Environment · 1
  • WebsiteEnvironmentalCalibration services extend instrument life and reduce waste through sustainable asset management
Community · 1
  • WebsiteCommunitySupports precision measurement standards across UK industry

Extracted automatically from main-line.co.uk on Jun 2026. Not independently verified — treat as the supplier’s own marketing claims.

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 · 2/8
Central government✓
Local government✓
NHS & health✓
Housing✓
Utilities & energy✓
Financial services✓
Education✓
Defence✓
Services · 8
Instrument Calibration
Test Equipment Supply
Instrument Hire
Measurement Solutions
Pressure Calibration
Electrical Calibration
Temperature Calibration
Dimensional Calibration
Frameworks & DPS · 2 from notices
  • CF - Complete Ophthalmology Solutions 3SUPPLY CHAIN COORDINATION LIMITED · £6.3m
  • Ophthalmic Capital Equipment and Associated AccessoriesNHS Supply Chain : NHS Supply Chain · —

Extracted automatically from main-line.co.uk on Jun 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 · 3

Credentials listed on the supplier’s website. Not yet checked against issuer registers.

◐ From supplier website
Core credentials · 1/6
Cyber EssentialsNot evidenced✓
Cyber Essentials PlusNot evidenced✓
ISO 27001 — Information securityNot evidenced✓
ISO 9001 — QualityListed on site✓
ISO 14001 — EnvironmentalNot evidenced✓
ISO 45001 — Health & safetyNot evidenced✓
Other credentials & memberships · 2
ISO/IEC 17025 Accredited
UKAS Accredited

Extracted automatically from main-line.co.uk on Jun 2026. Not independently verified — treat as the supplier’s own marketing claims.

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 · 11 live · 10 historic

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

✓ From notices
TitleBuyerCPVAwardedValueTermStatus
CA17262 - Maint-4692-MEH-Mainline Oculus
Partners Procurement Service5042100021 Mar 2026£73k3 yrsLive
Mainline Instruments: Pentacam Motorised Table
University Hospitals Sussex NHS Foundation Trust3312200004 Dec 2025£52k1 moClosed
CF - Complete Ophthalmology Solutions 3
SUPPLY CHAIN COORDINATION LIMITED3366210003 Nov 2025£6.3m2 yrsLive
CA16002 - MAINT4692-MEH-Mainline Oculus
Partners Procurement Service5000000001 Sept 2025£25k12 moLive
RFL-CAP-OCULUS Pentacam Reference Number: 2020/S 178-431058
Partners Procurement Service3310000001 Apr 2025£52k—Closed
CA14186 - UHDB/087/T Supply of Tonometer Probes
University Hospitals of Derby and Burton NHS Foundation Trust3312200001 Jul 2024£60k12 moClosed
Framework Agreement for the Supply of Ophthalmic Surgical Pathway Goods & Services
HealthTrust Europe LLP (HTE) acting on behalf of3300000001 Jul 2024£13.3m4 yrsLive
Tonometers
United Lincolnshire Hospitals NHS Trust3312200007 Feb 2024£40k12 moClosed
CA13445 - PR9471-MEH-Mainline Icare Compass
Partners Procurement Service3310000019 Oct 2023£41k3 moClosed
3 yr maintenance service contract for Mainline Instruments Tomey Casia2
King's College Trust5042000022 Sept 2023£20k3 yrsLive
Total live value £19.8m · mean award £956k1–10 of 21

Top buyers · 15 buyers · top 3 = 99%

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

✓ From notices
1
HealthTrust Europe LLP (HTE) acting on behalf of
1 contract
66%
since 2024
2
SUPPLY CHAIN COORDINATION LIMITED
2 contracts
31%
since 2025
3
Partners Procurement Service
4 contracts
1%
since 2024
4
University Hospitals of Derby and Burton NHS Foundation Trust
3 contracts
0%
since 2024
5
NOTTINGHAM UNIVERSITY HOSPITALS NHS TRUST
1 contract
0%
since 2021
6
University Hospitals Sussex NHS Foundation Trust
1 contract
0%
since 2025
7
United Lincolnshire Hospitals NHS Trust
1 contract
0%
since 2024
8
King's College Trust
1 contract
0%
since 2023
9
Cwm Taf Morgannwg University Health Board
1 contract
0%
since 2022
10
NHS Supply Chain Tower 4
1 contract
0%
since 2021

Category mix

CPV-division share of last-12m awarded value. Single-category exposure: 99%.

✓ From notices
Medical equipment33
99%
Repair & maintenance50
1%
⚠ Concentration: 99% 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
West Midlands1 contract
67%
London2 contracts
32%
East Midlands5 contracts
1%
South East1 contract
0%
Wales1 contract
0%
Eastern2 contracts
0%
South West2 contracts
0%

Peers

Suppliers with overlapping CPVs & buyers (last 24m). MAIN LINE (INSTRUMENTS) 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
ML
MAIN LINE (INSTRUMENTS) LIMITED
No£235k—
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
Due in 7d
Next due 29 Jul 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.
03403591
Status
Active
Type
Private limited
Incorporated
15 Jul 1997
Reg. office
Unit 2 Cyclo Works, Lifford Lane, Kings Norton, Birmingham, B30 3DY
SIC codes
74909
Last accounts
31 Dec 2024
Next accounts due
30 Sept 2026

Directors & PSC

  • HAWKINS, Simon Mark — secretary
    Appointed 02 May 2023
  • HAWKINS, Jack Charles — director
    Appointed 01 Apr 2021
  • CLARKE, Garry Wayne — director
    Appointed 18 Jul 2017
  • RICHARDS, Adrian — director
    Appointed 01 Mar 2012
  • HAWKINS, Simon Mark — director
    Appointed 01 Sept 1997
  • ARTLEY, Paul Martin — director
    Appointed 15 Jul 1997
  • Mr Paul Martin Artley — person with significant control
    ownership of shares 25 to 50 percent · voting rights 25 to 50 percent
  • Mr Simon Mark Hawkins — 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
MAIN LINE (INSTRUMENTS) LIMITED
03403591 · this company

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