What Oseco Elfab does

OsecoElfab (legal entity Elfab Ltd) is a UK-headquartered global manufacturer of customized rupture discs, explosion vents, burst detection sensors, and integrated safety cartridge systems for industrial pressure management. The company was founded in 1965 as Elfab Ltd, rebranded in 2021 to unify the Elfab (UK) and Oseco (US) brands, and operates as a wholly-owned subsidiary of Halma plc, a FTSE 100-listed diversified safety and technology group. Core technology centers on reverse buckling rupture disc engineering (LoKr family), electron-beam welded aerospace-grade assemblies (OE5/OE6), sanitary welded cartridges for bioprocessing (Pure-Gard), and the patent-pending Dual-Gard architecture that combines a breathable membrane with a metal rupture disc in a single device for lithium-ion battery safety. Specialized sub-brands address specific verticals: OE Lion for eMobility and battery energy storage, OE Aerospace for aerospace/defense/propulsion, and OE for Pharma for pharmaceutical and bioprocessing applications.

OsecoElfab serves six primary verticals (Capital Projects/EPCs, Processing Industries, Pharmaceutical, Power and Energy Storage, Aerospace/Defense/Propulsion, and Energy) across three regions via UK HQ (North Shields), US manufacturing (Broken Arrow, ITAR-registered), and an Asia Pacific regional HQ (Singapore). The business model is enterprise B2B with a direct field sales force, regional representative network, partner portal for EPCs, and quote-based customized pricing; revenue is generated primarily through one-time product sales (rupture discs, explosion vents, sensors, holders) augmented by engineering and consulting services such as ASME flow testing, customized design, site surveys, stock rationalization, expedited orders, and training. Notable certifications include ASME XIII compliance, CE marking, ITAR registration, JOSCAR accreditation, and ISO 9001:2015 and ISO 14001:2015. Headcount at the UK facility stood at 94 employees as of May 2025, with the company having received the King's Award for Enterprise for International Trade 2025 and the North East HR&D Excellence in Apprenticeships 2025.

Name

Oseco Elfab

Legal name

Elfab Ltd

Website

https://osecoelfab.com

Company type

Private

Founded year

1965

Operating status

Operating

Headcount range

101–250 employees

Short description

OsecoElfab (Elfab Ltd), a Halma plc subsidiary, manufactures customized rupture discs, explosion vents, and burst detection sensors for industrial pressure safety across pharmaceutical, aerospace/defense, energy, battery storage, and EPC capital project customers worldwide.

Ownership category

akta.pro rank

Product category

Industrial Pressure Safety Equipment

NAICS

Other Measuring and Controlling Device Manufacturing (334519), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451), Electrical Equipment Manufacturing (33531)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Electrical Industrial Apparatus (3620), Services-Engineering Services (8711)

akta.pro primary industry

Ruggedized/Harsh-Environment Electronics Manufacturing (IP-rated, shock/vibration, wide-temp) (IMAGAGAF)

akta.pro secondary industries

Sensors & Instrumentation Electronics Manufacturing Services (Transmitters, analyzers, industrial sensors) (IMAGAGAL), Instrumentation, Controls & Automation Engineering Consulting (BPAHAIAM)

Keywords

• Rupture disc manufacturing
• Pressure relief devices
• Explosion protection systems
• Burst detection sensors
• Industrial safety equipment

Headquarters

HQ city

Wear

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Pressure Safety Products: Sale of customized rupture discs, explosion vents, burst sensors, and holders for industrial pressure management applications across diverse sectors including chemical processing, pharmaceutical, power, and energy.
2. Engineering and Consulting Services: Customized design and engineering services, ASME flow testing, site surveys, stock rationalization, and training services supporting product sales.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

Oseco Elfab designs, manufactures, and supplies customized rupture discs, explosion vents, burst detection sensors, and pressure relief assemblies for industrial customers. The company serves sectors including chemical processing, pharmaceutical, aerospace and defense, power and battery energy storage, and oil and gas through dedicated sub-brands (OE Lion, OE Aerospace, OE for Pharma). Complementary engineering services include customized design, ASME flow testing, site surveys, and training.

Product overview

OsecoElfab is a global manufacturer of customized rupture discs and explosion vents offering a comprehensive portfolio of pressure safety solutions. The product portfolio centers around core pressure relief products including the LoKr reverse buckling rupture disc family (LoKr Duo, LoKr Safety Cartridge), the Oseco Safety Cartridge, and Pure-Gard for sanitary applications. The company has developed specialized sub-brands including OE Lion for lithium-ion battery safety applications in eMobility and OE Aerospace for the aerospace, defense, and propulsion sectors. Supporting the product portfolio are engineering services including customized design and engineering, ASME flow testing, site surveys, stock rationalization, expedited orders, and training. The company operates as part of the FTSE 100 listed Halma Group.

Differentiator

Problem solved

Functional benefit

Brands

• OE Lion: Specialized pressure relief solutions brand for lithium-ion battery applications in the eMobility sector.
• OE Aerospace
• OE for Pharma

Products and services

• LoKr Duo Safety Cartridge A two-piece modular safety cartridge using the LoKr rupture disc, designed to upgrade pressure relief performance, reduce waste and emissions while providing leak-free performance with lower replacement costs and faster turnaround.
• LoKr Safety Cartridge

Quantifiable outcome

• Reduced emissions through Oseco Safety Cartridge installation as Best Available Technique for butadiene handling
• +2 more outcomes

Named customers4 records

Segments6 records

Ideal customer profiles6 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 flagship.

• MAKE UK DefencecoreStrategic or Co-development Partner · 9 December 2025National UK network supporting UK manufacturers in aerospace, defense, and security sectors. Member-owned trade association bringing together organizations across the supply chain offering insights into sector developments and opportunities for collaboration. OsecoElfab joined to strengthen existing relationships, build new partnerships, and contribute to growth and resilience of UK manufacturing.
• TDR TrainingcoreStrategic or Co-development Partner · 1 January 2022Apprenticeship program partnership for developing skilled engineers. OsecoElfab's apprenticeship program with TDR Training ensures development of capable engineers to support the company's ambitious growth plan globally. The program has been running for three years and was recognized with the Excellence in Apprenticeships award at the North East HR&D Awards 2025.
• Halma plcflagshipOthersParent company - FTSE 100 listed global group of companies. OsecoElfab (trading name of Elfab Ltd) is part of the Halma group which provides access to global networks, resources, and organizational credibility. Halma operates under a Code of Conduct relating to bribery and corruption that OsecoElfab suppliers must comply with.

Scale indicators4 records

Recent moves7 records

Expansion highlights7 records

Direct peers

• Hoerbiger: Austria-based industrial group with significant pressure relief and rupture disc operations serving process industries, oil & gas, and aerospace. Competes for similar safety-critical pressure relief applications.
• Continental Disc Corporation: US-headquartered rupture disc and pressure relief specialist serving chemical, petrochemical, oil & gas, pharmaceutical, and aerospace markets. Long-established direct peer with similar custom-engineered approach and global distribution.
• BS&B Safety Systems: Global rupture disc manufacturer with parallel product lines including reverse-acting, forward-acting, and graphite discs. Direct peer competing for the same EPC and process industry customers with comparable engineering-driven sales model.
• Fike Corporation: US-based manufacturer of rupture discs, explosion protection, and pressure relief products across chemical, pharmaceutical, oil & gas, and aerospace markets. Closest direct competitor to OsecoElfab with overlapping product portfolio, EPC focus, and custom engineering services.
• REMBE GmbH: German explosion protection and rupture disc manufacturer with strong European presence across chemical, food, and process industries. Competes head-to-head with OsecoElfab in industrial explosion protection and dust explosion venting.
• ZOOK: Specialized rupture disc and explosion vent manufacturer serving chemical, petrochemical, and oil & gas applications. Focused product line closely mirrors OsecoElfab's core rupture disc offering.

Others

• Halma plc (sister divisions): Parent group with multiple safety-focused subsidiaries (e.g., Bindicator, Palmer Wahl, Imtex Controls) serving adjacent industrial safety markets. Sibling subsidiaries share group-level resources and cross-sell opportunities with OsecoElfab.

Broad incumbents

• Baker Hughes: Global energy technology company with pressure control, pressure relief, and process safety product lines serving oil & gas, refining, and petrochemical customers. Operates at significantly larger scale with broader portfolio than OsecoElfab.
• Crane Co. Diversified industrial manufacturer with process flow and pressure relief product lines serving chemical, oil & gas, and pharmaceutical customers. Competes in adjacent industrial safety product categories.
• Emerson Automation Solutions: Diversified industrial automation giant whose pressure relief valves and process safety instrumentation compete with OsecoElfab across chemical, refining, and EPC accounts. Broader portfolio and global EPC framework agreements create pricing pressure.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/osecoelfab
• YouTubeyoutube.com/channel/UCem1yVv8PG3DUzdChsFPnBg
• Facebookfacebook.com/OsecoElfab
• LinkedInlinkedin.com/company/oseco-elfab

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

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 Oseco Elfab