What Granton Medical does

Granton Medical is a UK-based manufacturer specializing in self-seal sterilization pouches for the medical and dental sectors. Operating from a 3,500 sq metre facility with an ISO Class 7 cleanroom in Sheffield, the company produces over 100 million pouches annually, making it the largest volume manufacturer of this product category in the United Kingdom. Its product portfolio also includes sterilization reels, paper bags, and crepe wrapping paper used to maintain the sterility of reusable medical instruments across hospitals, dental practices, and medical device manufacturers.

The company operates a B2B sales-led model, supplying healthcare providers and medical device OEMs under recognized quality standards including ISO 13485, ISO 9001, and FDA 21 CFR Part 820. Manufacturing processes combine polymer extrusion, medical-grade printing, and cleanroom assembly to produce validated sterile barrier packaging compliant with international sterilization standards. The company does not disclose revenue or customer concentration publicly.

In January 2023, Granton Medical became a member of the Sterimed Group, the global specialist in sterile barrier packaging. The company is currently being integrated into Sterimed's subsidiary network, with its standalone website scheduled for shutdown at the end of June 2025 and direct sales activities transferring to other Sterimed entities. As of mid-2025, Granton Medical functions as an operational unit within Sterimed rather than an independent commercial enterprise.

Name

Granton Medical

Legal name

Granton Medical Limited

Website

https://granton-medical.co.uk

Company type

Private

Founded year

1960

Operating status

Operating

Headcount range

11–50 employees

Short description

Granton Medical is a UK-based manufacturer of self-seal sterilization pouches and sterile barrier packaging for medical and dental customers, producing 100+ million pouches per year from its Sheffield cleanroom facility as a Sterimed Group subsidiary.

Ownership category

akta.pro rank

Product category

Medical Device Packaging

NAICS

Plastics Bag and Pouch Manufacturing (326111), Surgical Appliance and Supplies Manufacturing (339113)

SIC

Plastics Products, Nec (3089), Surgical & Medical Instruments & Apparatus (3841)

akta.pro primary industry

Sterile & Aseptic Medical Packaging (Pouches, Wraps, Sterile Barriers) (IMALAIAB)

akta.pro secondary industries

Medical Device Packaging (Trays, Clamshells, Kits) (IMALAIAD), Pharmaceutical & Medical Plastic Packaging Manufacturing (IMANAEAK), Sterilization Consumables & Packaging (Wraps, Pouches, Indicators, Trays/Containers) (HLAHANAC)

Keywords

• Medical device packaging
• Sterilisation pouches
• Contract packing services
• Medical grade materials
• Flexographic printing

Headquarters

HQ city

Sheffield

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Sterilisation Pouch Sales: Manufacturing and sale of Self Seal Sterilisation Pouches, Flat (heat seal) paper/film pouches, and Tyvek pouches. Over 100 million Self Seal pouches produced annually.
2. Sterilisation Reels Distribution: UK distribution of Eurosteril heat seal sterilisation reels and heat sealing machines (Euroseal 2001 Plus, Euroseal Valida).
3. Printed Rollstock Materials: Printing and supply of sterilisable medical packaging rollstock materials including medical grade papers and Tyvek. Short lead times and on time deliveries.
4. Cleanline Contract Packing Services: Sub-contract packaging services including cleanroom hand and machine packing, thermal washing, disinfection, and sterilisation process management for medical devices.
5. Disposable Medical Products: Sale of Disposable Examination Gloves, Face Masks, Tattoo Supplies, Dental Laboratory Knives, Spatulas, and Scalpels.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

Granton Medical manufactures and sells self-seal and heat-seal sterilisation pouches, sterilisation reels, and printed rollstock medical packaging materials, primarily serving medical device manufacturers and healthcare facilities. The company also operates Cleanline, a customisable medical device contract packaging and sterilisation management service delivered from an ISO Class 7 cleanroom, and supplies complementary disposable medical products such as examination gloves, face masks, tattoo supplies, and medical knives.

Product overview

Granton Medical is a UK-based medical device packaging manufacturer offering a comprehensive portfolio of sterilisation packaging solutions and medical supplies. The core product line centres on sterilisation pouches and reels (Self Seal and Heat Seal formats) for medical devices, with the company being the UK's largest volume manufacturer of Self Seal Sterilisation Pouches producing over 100 million units annually. Supporting this, they provide in-house 6-colour flexographic printing on medical grade papers and Tyvek® materials, plus the Cleanline® sub-contract packaging service offering cleanroom assembly, cleaning, and sterilisation management. The broader product range extends to disposable examination gloves (latex and nitrile), face masks, tattoo supplies, and medical knives manufactured in Sheffield. The company operated as a member of The Sterimed Group from January 2023.

Differentiator

Problem solved

Functional benefit

Brands

• Cleanline®: Sub-contract packaging and sterilisation service offering customised turnkey packaging solutions including hand packing, 4-side-seal machine packing, form-fill-seal packing, cleanroom device assembly, ultrasonic cleaning, washing and disinfection, and management of sterilisation process.

Products and services

• Sterilisation Pouches

Quantifiable outcome

• Production capacity exceeding 100 million Self Seal pouches per year
• +3 more outcomes

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Sterimed GroupcoreOthers · 1 January 2023Granton Medical has been a member of The Sterimed Group since January 2023. Sterimed Group, headquartered in France, is a global leader in medical packaging. As part of the group, Granton contributes to Sterimed being the only player in medical packaging that can manufacture multiple types of sterilisable materials and convert them into ready-to-use products. Sterimed has production and logistics facilities in the Americas, Europe and Asia.
• EurosterilminorChannel Partner/ Reseller/ DistributorGranton Medical is the UK distributor of the Eurosteril range of Heat Seal Sterilisation Reels. Eurosteril reels are designed for packaging extra-long products or creating individual pouches of special lengths.
• Ocean ReefminorGTM or Marketing PartnerGranton Medical is the exclusive UK distributor of the Aria 19 full face mask - a PPE solution developed by Ocean Reef in Italy. The mask connects to filters to provide alternative personal protection, particularly during the COVID-19 pandemic.

Scale indicators4 records

Recent moves4 records

Broad incumbents

• Cardinal Health: US healthcare distributor and manufacturer with a medical products portfolio that includes sterile packaging and gloves. Comparable in distribution scale and in adjacent disposable product lines (gloves, masks) that overlap Granton's secondary range.
• STERIS: Global leader in sterilisation and infection prevention services and consumables, with a portfolio that includes sterilisable packaging components. Comparable as a large incumbent that touches both sterilisation processing and packaging consumables used by the same customers Granton serves.
• Sterimed Group: France-headquartered global leader in medical packaging and Granton's parent company since January 2023. It is the broadest incumbent in the exact niche Granton operates in, manufacturing multiple sterilisable substrates and converting them into ready-to-use formats worldwide.
• Amcor: Global packaging conglomerate with a sizable healthcare/medical packaging division producing sterile barrier systems, pouches, and films. Comparable to Granton as a competing supplier of sterilisable medical packaging to OEMs, though at much greater scale and geographic breadth.
• Bemis (Amcor Healthcare): Now part of Amcor's Healthcare division, Bemis historically supplied sterilisation packaging, films, and coated papers to medical device manufacturers. Directly comparable product portfolio to Granton's printed rollstock and pouches.
• Cantel Medical: US-listed provider of infection prevention and sterilisation products, including sterile barrier consumables used in dental and medical settings. Comparable through overlapping infection-control packaging customers with Granton's dental and tattoo/body-art segments.

Others

• DuPont (Tyvek® Medical Packaging): Supplier of Tyvek® medical-grade substrate that Granton converts into sterilisation pouches and rollstock. It is an enabling upstream participant rather than a direct competitor, but its specifications dominate sterilisable medical packaging design and strongly shape Granton's product economics.

Direct peers

• Riverside Medical: UK-based Sterimed Group subsidiary absorbing Granton's Cleanline contract packing services. It is a direct peer in medical device contract packing and cleanroom assembly.
• Westfield Medical: UK-based manufacturer of sterilisation pouches and reels, and the Sterimed Group subsidiary now absorbing Granton's pouch and reel business. It is the most direct product overlap and is now the direct successor to Granton's pouch customers.
• Oliver Healthcare Packaging: US-based specialist manufacturer of sterile barrier packaging including pouches, header bags, and die-cut lids for medical device OEMs. Direct competitor in the same product category as Granton's Self Seal pouches, reels, and rollstock.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/GrantonMedical
• LinkedInlinkedin.com/company/granton-medical-limited

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Granton Medical