International Gas Detectors

What International Gas Detectors does

International Gas Detectors (trading as IGD; legal entity Oliver IGD Ltd, UK Company Number 1044944) is a UK-based manufacturer of fixed and portable gas detection systems, control panels, sensors, and accessories, founded in 1917 in Stockport by Henry Ringrose, inventor of the world's first flammable gas detector. The company operates as part of the Safe Monitoring Group (alongside sister company Bieler+Lang) and claims over a century of continuous operation in industrial gas safety.

IGD's core technology is the Sentinel+ 2-Wire Addressable platform, which carries both power and digital communication over a single 2-core cable with polarity independence and daisy-chained topology, supporting up to 32 devices per highway and 6 highways per controller. The portfolio includes the TOC-903-X5 dual gas detector-transmitter (ATEX/IECEx/UKCA-certified), the TOCSIN 635 mounted control panel family (MICRO and PLUS variants), the MK8 pellistor sensor (tested to 100x the prescribed poison-resistance standard), the SafePark car-park solution, the BELLMINI portable single-gas detector with BELLCONNECT Bluetooth App, and the recently launched GasNet remote monitoring package. Sensors are pre-calibrated for over 700 gases and vapours and support plug-and-play auto-recognition. The product line is certified to ATEX, IECEx, UKCA, BS EN 61010-1:2010+A1:2019, and UL 61010 standards.

Revenue is generated through four streams: hardware sales (fixed and portable detectors, control panels, spares), installation and turnkey project services delivered by COMPEx-trained engineers, recurring AfterCare+ service and calibration contracts (covering IGD and third-party systems), and a spares/accessories stream. Pricing is quote-based and not publicly disclosed; sales run through a direct enterprise field sales motion (UK HQ plus regionally deployed consultants for the US and Latin America), an international distributor network spanning ~16 countries, and an event- and education-led demand-gen layer (IGD Academy, trade shows, webinars, case studies). End customers span industrial/process, healthcare and medical gas pipelines, car parks and facility management, refrigeration and cold chain, laboratories and research, fire and rescue, breweries, and emerging hydrogen energy applications, with named logos including Boston Scientific, NHS hospitals, the National Theatre, Creo International, Seaborg Technologies, and Robinsons Brewery.

Name

International Gas Detectors

Legal name

Oliver IGD Ltd

Website

https://internationalgasdetectors.com

Company type

Private

Founded year

1917

Operating status

Operating

Headcount range

11–50 employees

Short description

International Gas Detectors manufactures fixed and portable gas detection systems, control panels, and sensors for industrial, healthcare, car park, refrigeration, laboratory, and hydrogen-energy customers worldwide, sold via direct enterprise sales and an international distributor network.

Ownership category

akta.pro rank

Product category

Industrial Gas Detection Systems

NAICS

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Natural Gas Distribution (221210)

SIC

Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Natural Gas Transmisison & Distribution (4923)

akta.pro primary industry

Fixed Gas Detection & Continuous Monitoring (Sensors/IoT/Telemetry) (EUAJADAB)

akta.pro secondary industries

Process Analytical Instrumentation (Gas analyzers, spectroscopy, pH/ORP, conductivity) (IMAGAFAE), Gas Leak Detection (Natural Gas/Propane) & Combustible Gas Alarms (HSAHAGAI), Remote Monitoring/Telemetry for Regulators & Meter Stations (RTUs, Sensors) (EUAJAKAM)

Keywords

• Industrial gas detection
• Fixed gas detectors
• Portable gas monitors
• Addressable gas detection systems
• Toxic flammable gas sensors

Headquarters

HQ city

Stockport

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Gas Detection Hardware Sales: One-time sale of fixed and portable gas detectors (Sentinel+ systems, TOC-750, TOC-903-X5, BELLMINI, POLI, SafePark range, sampling detectors, control panels) for industrial, commercial and research applications. Sold via direct sales and through international distributor network.
2. Installation, Commissioning and Turnkey Project Services: Professional services spanning initial consultancy, system design, installation and full turnkey projects. Performed by COMPEx-trained engineers and dedicated projects team.
3. AfterCare+ Service & Maintenance Contracts: Ongoing traceable calibration and maintenance for IGD systems and those from other manufacturers, ranging from call outs to yearly contracts. Includes event-log-based remote monitoring via GasNet.
4. Service and Spares: Replacement sensors, accessories, and spare parts revenue stream.

Pricing tiers

Go-to-market motion4 records

Distribution channels4 records

Marketing channels8 records

Core offering

International Gas Detectors (IGD) designs, manufactures and supplies fixed and portable gas detection systems built on its proprietary Sentinel+ 2-Wire Addressable platform, along with control panels, sensors and accessories for monitoring toxic, flammable and asphyxiant gases across industrial, healthcare, car park, refrigeration, laboratory and hydrogen applications. The company also delivers turnkey project services (consultancy, design, installation, commissioning) and an AfterCare+ lifetime service and maintenance programme covering both IGD and third-party systems.

Differentiator

Problem solved

Functional benefit

Brands

• SafePark: Application-specific addressable gas detection product line for car parks, combining 2-Wire addressable technology with long-life sensors and dedicated detector, control panel and controller products.
• Sentinel+
• BELLMINI
• POLI
• GasNet
• Safe Monitoring Group

Products and services

• Sentinel+ 2-Wire Addressable Gas Detection Platform Flagship distributed gas detection platform where detectors, control panels and accessories share a single 2-core cable for both power and digital communication, polarity-independent, supporting up to 32 devices per cable highway and 6 cable highways per controller. Used by industrial, commercial, healthcare and public-sector buyers to reduce installation cost (up to 70% vs 4-wire analogue).
• SafePark Car Park Gas Detection Solution End-to-end addressable gas detection system for enclosed and underground car parks, bundling SafePark Detector (CO/NO2 sensor heads), SafePark Control Panel and SafePark Controller with traffic-light status indication and automated ventilation fan actuation. Targets property developers, car park operators and facilities management firms needing COSHH/DSEAR-compliant CO and NO2 monitoring.
• TOC-903-X5 Dual Gas Detector-Transmitter

Quantifiable outcome

• Up to 70% installation cost savings vs traditional analogue/4-wire addressable systems via Sentinel+ 2-Wire Addressable platform
• +6 more outcomes

Named customers25 records

Segments8 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

Feature7 records

Partnerships

19 partnerships are on record, tiered flagship, core and minor.

• Bieler+LangflagshipStrategic or Co-development PartnerSister company within the Safe Monitoring Group (SMG). IGD teamed up with Bieler+Lang to represent the larger group at ACHEMA 2024 in Frankfurt, jointly showcasing IGD's TOC-903-X5 alongside Bieler+Lang offerings in the instrumentation and safety wing.
• Senko (Senko SGT)coreOEM/ Whitelabel/ Licensing PartnerIGD supplies Senko SGT portable gas detectors including the SGT-P Hydrogen portable detector and the Senko O2 portable; the BELLMINI is positioned alongside the Senko product line for portable H2S and other single-gas monitoring in oil and gas.
• mPower (mPower POLI)coreOEM/ Whitelabel/ Licensing PartnerPartnership to extend the IGD portable detection portfolio; the mPower POLI multi-gas portable monitor is offered by IGD, with new sensor additions to the mPower range extending IGD's coverage into additional industry sectors.
• Insatech (Colombia)coreChannel Partner/ Reseller/ DistributorColombian specialist in gas, flame and fire detection and industrial hygiene. Joint activity focused on food and beverage, brewing, dairy and chemicals industries, with training and Aftercare+ planning.
• Sinduly LatinoaméricacoreChannel Partner/ Reseller/ DistributorPanama City-based distributor covering Central America and the Caribbean (Costa Rica, Dominican Republic, Guatemala, Honduras, El Salvador, Nicaragua) with sub-distributor network. Includes training, exhibition attendance and planned webinar calendar.
• Genbus (Costa Rica)coreChannel Partner/ Reseller/ DistributorCosta Rican setup incorporating IGD into its industrial portfolio. Training sessions delivered on gas detection fundamentals and product selection, with focus on pharmaceutical and chemical clean process applications.
• ISE Ingenieros (Peru)coreChannel Partner/ Reseller/ DistributorPeruvian partner supporting safe power generation and distribution. Presented Sentinel+ and ammonia sensors at the 9th Efficient Technologies Fair, with technical trainee sessions at the Escuela de Refrigeración del Perú.
• ACIS Process (Peru)flagshipChannel Partner/ Reseller/ DistributorOfficial Peruvian partner. 24-hour technical support engineering firm; portfolio training for sales and service engineers, and co-hosted one-hour webinar on gas detection for agribusiness covering fundamentals, common risks, IGD Academy, technologies, and after-sales model.
• Vestteknikk (Norway)coreChannel Partner/ Reseller/ DistributorNorwegian partner working closely with IGD on fixed gas detection for the onshore market, citing the 2-Wire addressable gas detection system as the future of fixed gas detection. Deployed TOCSIN 635 for Oslo Municipality.
• Coup Ostrava (Czech Republic)coreChannel Partner/ Reseller/ DistributorIGD distributor; partnership won international tender to upgrade DPO Ostrava's flammable gas detector system for CNG-powered bus garages across 3 sites using IGD's addressable systems and MK8 pellistor-based flammable gas detector.
• Creo International (Hydrogen)coreImplementation/ SI/ Consulting PartnerHydrogen Consultant integrating IGD's ultra-responsive hydrogen detection technology into client projects, ensuring safe operation of hydrogen systems. Case study: 'Protecting Hydrogen Energy Systems – Hydrogen Sensors for Creo International' (Nov 2023).
• Jigsaw ControlsminorImplementation/ SI/ Consulting PartnerProject-based collaboration for ATEX Zone 1 environment — IGD supplied the TOC-903-X5 dual gas detector transmitter to detect methane and hydrogen sulphide in habitat shelters for Jigsaw's client.
• Impactor ltd.minorChannel Partner/ Reseller/ DistributorDistributor: 'We are honoured and proud to distribute your gas detection equipment in our country' — citing IGD's 2-Wire Addressable systems as 'the most modular, easy to use and cost-effective available in the world'.
• Phares EngineeringcoreImplementation/ SI/ Consulting PartnerEngineering partner that delivered an accredited and compliant ammonia gas detection system to a Landlord for a multinational supermarket chain, with IGD supporting regulation knowledge and ammonia gas detection.
• Safe Monitoring Group (SMG) / Alder GroupflagshipStrategic or Co-development PartnerParent group context. IGD is part of the SMG group (alongside Bieler+Lang), under Alder's policy. The SMG whistleblowing policy covers all companies in the group, with reporting channel via prewoe.com/whistleblower/company/smg, aligned with EU directive 2019/1937.
• Medical Pipelines Services LtdminorImplementation/ SI/ Consulting PartnerProject team partnership; 'supported our project team all the way from product manufacturing through to technical support, becoming an IGD Aftercare partner has been an easy choice to make'.
• Junair SprayboothsminorImplementation/ SI/ Consulting PartnerPartnership for ongoing technical support, commissioning and continuous training and development, with IGD positioned as a leading industry expert.
• KONTAKT Elektro Kft (Hungary)minorChannel Partner/ Reseller/ DistributorDistributor recommending the SGT-P Hydrogen portable detector for personal hydrogen detection and leak detection in their market.
• Teknokraft (via Paul Renon, Executive Director)minorChannel Partner/ Reseller/ DistributorPartnership statement: '21 years in the gas detection business... a joy to finally find a system that is both easy to use, and provides a level of sophistication which can meet customer needs at every level of coverage. I am certain that this new partnership will not only be beneficial for us but for any customers as well.'

Scale indicators8 records

Recent moves6 records

Expansion highlights7 records

Broad incumbents

• Honeywell Analytics: Honeywell's industrial gas detection division offers fixed and portable gas detectors across flammable, toxic and oxygen hazards. It is a broad incumbent with overlapping product categories (addressable detectors, controllers, sensors) and competes with IGD across IGD's core industrial and process verticals.
• Dräger: Global German-headquartered safety and gas detection company offering fixed gas detectors, portable monitors and turnkey safety solutions for industrial, healthcare and mining markets. Direct overlap with IGD's portable (BELLMINI/POLI/Senko) and fixed (Sentinel+, TOC-903-X5) lines.
• MSA Safety: US-listed safety equipment manufacturer with a strong fixed and portable gas detection portfolio (e.g., ULTIMA, Altair). Competes directly with IGD in oil & gas, petrochemical and hydrogen end markets and has a much larger global sales footprint.
• Teledyne FLIR (Gas Detection): Through FLIR and parent Teledyne, offers optical gas imaging and complementary fixed/portable gas detection products. Competes with IGD's higher-end industrial accounts and brings significant scale and adjacent thermal/optical sensing technology.

Emerging players

• Analox Group: UK-based specialist in gas detection for commercial, military, medical and industrial markets. Closely comparable in size and geography to IGD, with overlapping customer segments (car parks, breweries, healthcare) and a similar niche positioning.
• Bieler+Lang: Sister company within Safe Monitoring Group (SMG) focused on gas, flame and fire detection and monitoring instrumentation. Not a direct competitor but operates adjacent in the same group and jointly exhibited with IGD at ACHEMA 2024.
• Sensitron: Italian gas detection manufacturer offering fixed detectors and control panels for industrial and HVAC applications. Overlaps with IGD's addressable platform concept and competes for European industrial projects.

Direct peers

• Industrial Scientific: Specialist in portable gas detection and connected safety monitoring, with a focus on wireless, real-time area monitoring and subscription SaaS (iNet). Direct competitor to IGD's portable and remote monitoring offerings (BELLMINI, GasNet) and a leader in subscription-based gas detection.
• RKI Instruments: US-Japan specialist in fixed and portable gas detection with strong presence in oil & gas and confined-space entry. Competes with IGD's TOC-903-X5 and Sentinel+ in North American and Asian industrial accounts.
• Crowcon Detection Instruments: UK-based (Oxfordshire) gas detection specialist offering fixed and portable detectors for industrial, oil & gas and laboratory applications. Closest direct competitor geographically and in product scope; both target similar end users and channel partners.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/IGD1
• Facebookfacebook.com/InternationalGasDetectors

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 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 International Gas Detectors