Job Group

What Job Group does

Job Group (JOB GmbH) is a privately held German manufacturer founded in 1971 by Eduard Job in Ahrensburg near Hamburg. The company specializes in heat-sensitive glass ampoules and thermal fuse technology for fire protection applications, holding the position of world market leader in this niche. Its core product, the JOB Thermo Bulb, is a glass ampoule that ruptures at a specific temperature threshold to activate sprinkler systems, with approximately 2 billion units cumulatively installed worldwide by all major sprinkler manufacturers.

The company's product portfolio comprises four lines: JOB Thermo Bulbs (sprinkler glass ampoules for building and automotive applications), Thermo Bulb Links (glass-based thermal fuses), E-Bulbs (fire-extinguishing thermal fuses for compact devices), and AMFE Mini Fire Extinguishers (miniature fire suppression for small volumes). All products are manufactured in Germany and certified by leading fire safety bodies including VdS Schadenverhütung GmbH and FM Global. The underlying technology relies on precision glass chemistry and proprietary thermal activation mechanics developed and patented since the company's founding.

Job Group operates a sales-led B2B go-to-market model with direct sales for Thermo Bulbs and Thermo Bulb Links to global sprinkler system OEMs, and a network of regional sales partners for AMFE and E-Bulb products across Europe (12+ countries), Americas, Asia, Africa, and Oceania. The company employs 160+ people globally, is family-managed under Bodo Müller and Philip Müller, and serves end-markets including commercial buildings (e.g., Empire State Building, Queen Mary 2), automotive, and electronic equipment manufacturers. Revenue is generated through hardware sales of proprietary fire protection components with B2B enterprise pricing; no public pricing or revenue disclosures are available.

Name

Job Group

Legal name

JOB GmbH

Website

https://job-group.com

Company type

Private

Founded year

1971

Operating status

Operating

Headcount range

101–250 employees

Ownership category

akta.pro rank

Product category

Fire Protection Equipment

NAICS

Other Pressed and Blown Glass and Glassware Manufacturing (327212)

SIC

Glass & Glassware, Pressed Or Blown (3220)

akta.pro primary industry

Fire Protection Piping & Sprinkler System Components (IMADALAJ)

akta.pro secondary industry

Heat Detectors & Specialized Detectors (e.g., Kitchen/Rate-of-Rise) (HSAHAFAE)

Keywords

• Fire sprinkler components
• Heat-sensitive glass ampoules
• Thermal fuse technology
• Mini fire extinguishers
• Fire protection hardware

Headquarters

HQ city

Ahrensburg

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Fire Protection Products: Manufacture and sale of heat-sensitive glass ampoules, thermal fuses, and mini fire extinguishers to sprinkler manufacturers and fire protection industries globally

Go-to-market motion1 record

Distribution channels2 records

Marketing channels7 records

Core offering

Job Group manufactures and globally sells heat-sensitive glass ampoules (JOB Thermo Bulbs), glass-based thermal fuses (Thermo Bulb Links), fire-extinguishing thermal fuses (E-Bulbs), and miniature fire extinguishers (AMFE). These components are integrated into sprinkler systems, automotive fire protection systems, and compact electronic devices, providing temperature-triggered fire detection and suppression for safety-critical applications.

Product overview

Job Group is a world market leader in heat-sensitive glass ampoules for fire protection, offering a unified product portfolio centered on thermal detection and fire suppression technology. The core offerings include JOB Thermo Bulbs (heat-sensitive glass ampoules for sprinkler systems and automotive applications), Thermo Bulb Links (glass-based thermal fuses), and E-Bulbs (fire-extinguishing thermal fuses for smaller devices). The portfolio is complemented by AMFE Mini Fire Extinguishers, which extend fire protection capabilities to compact applications. All products are manufactured in Germany (100% Made in Germany) and are designed for easy installation and reliability in safety-critical applications.

Differentiator

Problem solved

Functional benefit

Brands

• JOB Thermo Bulbs: Sprinkler glass ampoules - heat-sensitive glass ampoules for sprinkler systems and automotive industry. World market leader product line.
• Thermo Bulb Link
• E-Bulb
• AMFE

Products and services

• JOB Thermo Bulbs Heat-sensitive glass ampoules used in sprinkler systems and the automotive industry that rupture at specific temperatures to trigger automatic fire suppression. Sold primarily to global sprinkler manufacturers as a core fire protection component.
• Thermo Bulb Link Glass-based thermal fuse link that provides fail-safe thermal detection for fire protection systems and safety applications, designed for easy installation.
• E-Bulb Fire-extinguishing thermal fuses (E-Bulbs) designed for early fire detection and active suppression in smaller devices and compact applications, complementing the core Thermo Bulb product line.
• AMFE Mini Fire Extinguisher Miniature fire extinguisher (AMFE) for fire suppression in compact spaces and smaller equipment such as electronics, server rooms, and small-volume devices, complementing the Thermo Bulb and E-Bulb product lines.

Quantifiable outcome

• Approximately 2 billion JOB Thermo Bulbs installed worldwide

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Eleven partnerships are on record, tiered core and regional.

• VdS Schadenverhütung GmbHcoreStrategic or Co-development PartnerLong-standing quality partnership spanning over 50 years. VdS conducts audits and certifications of JOB products, validating their quality standards for fire safety applications.
• European Fire Sprinkler NetworkcoreStrategic or Co-development PartnerJOB Group supports global fire protection programs through automatic fire extinguishing systems, working with EFSN to advance sprinkler technology standards worldwide.
• FM Global / IFSAcoreStrategic or Co-development PartnerPartnership with FM Global (industrial insurance) and International Fire Sprinkler Alliance to develop global standards for fire protection systems using JOB's high-quality products.
• DERETICA (Romania)regionalChannel Partner/ Reseller/ DistributorRegional sales partner for AMFE products in Romania, Europe
• Alpol Sp. z o.o. (Poland)regionalChannel Partner/ Reseller/ DistributorRegional sales partner for AMFE products in Poland, Europe
• Carl Geisser AG (Switzerland)regionalChannel Partner/ Reseller/ DistributorRegional sales partner for AMFE products in Switzerland, Europe
• Caverion Suomi Oy (Finland)regionalChannel Partner/ Reseller/ DistributorRegional sales partner for AMFE products in Finland, Europe
• CEDiSS srl Soc. (Italy)regionalChannel Partner/ Reseller/ DistributorRegional sales partner for AMFE products in Italy, Europe
• Dekape B.V. (Benelux)regionalChannel Partner/ Reseller/ DistributorRegional sales partner for AMFE products in Belgium, Luxembourg, Netherlands
• Electronic Direct GmbH (Germany)regionalChannel Partner/ Reseller/ DistributorRegional sales partner for E-Bulb products in Germany
• Electronic Direct Inc. (Canada)regionalChannel Partner/ Reseller/ DistributorRegional sales partner for E-Bulb products in Canada, Americas

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Honeywell (Notifier by Honeywell): Global fire-alarm and life-safety brand under Honeywell Building Technologies. Overlaps with JOB in fire-detection and notification systems but serves a much broader commercial and institutional portfolio.
• Victaulic: Global leader in mechanical pipe-joining solutions for fire-protection and mechanical systems. Operates in the same fire-protection ecosystem as JOB but with a broader portfolio spanning fittings, couplings, and valves.
• Johnson Controls (Tyco Fire Protection Products): Global conglomerate encompassing Tyco Fire Protection Products, which manufactures sprinklers, suppression systems, and detection products. Overlaps with JOB as a major buyer/peer in the integrated fire-safety supply chain.
• Minimax: Germany-based fire-protection solutions provider offering detection, suppression, and extinguishing systems. Directly comparable as a European incumbent in fire protection with overlapping OEM and end-customer relationships.

Direct peers

• Viking Group: One of the world's largest manufacturers of fire sprinkler systems and a key customer of JOB's Thermo Bulbs. Operates in the same fire-protection component ecosystem with comparable OEM-supplier relationships and global distribution.
• Apollo Fire Detectors (Halma): UK-based manufacturer of fire-detection devices including heat sensors, part of Halma's safety segment. Comparable to JOB as a specialist fire-detection component maker with global distribution.
• Reliable Automatic Sprinkler Co. US-headquartered sprinkler manufacturer producing fire-protection systems for commercial, residential, and storage applications. Directly comparable as a customer and peer in the global sprinkler component supply chain.
• Globe Fire Sprinkler Corporation: Major North American sprinkler manufacturer that integrates glass-bulb thermal elements into its systems. Comparable to JOB as a participant in the global sprinkler supply chain serving commercial and industrial fire protection.
• Hochiki: Japanese-headquartered manufacturer of fire-detection and life-safety products, including heat detectors that compete with JOB's thermal-bulb technology in adjacent sensing applications.

Emerging players

• Nittan: Japanese fire-detection equipment manufacturer with growing global presence. Comparable to JOB in the heat-detection component category but smaller and focused on electronic detectors rather than mechanical bulbs.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@JOBGroup_since1971
• Facebookfacebook.com/TheJOBGroup
• LinkedInlinkedin.com/company/7478824
• Instagraminstagram.com/job_group1971

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 Job Group