Bieler + Lang
Bieler + Lang GmbH is a German manufacturer of ATEX-certified fixed gas detection and warning systems, serving industrial customers across hydrogen, laboratory, parking garage, hazardous goods, HVAC, and process industry verticals through direct sales and the Safe Monitoring Group international network.
- Company typePrivate
- Founded1970
- HeadquartersAchern, Germany
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
What Bieler + Lang does
Bieler + Lang GmbH is a German manufacturer of fixed gas detection and warning systems, headquartered in Achern in the Baden region of southern Germany, where it operates its own certified production facility and in-house electronics manufacturing. The company develops, produces, and distributes ATEX-certified gas detectors, evaluation units (controllers), and accessories used to monitor explosive, flammable, and toxic gases across industrial environments. Its product portfolio spans the ExDetector and GasMonitor detector families, the GMC controller series (including the SafePark sub-line for parking garages and the Ecoline line for heating systems), and supporting accessories such as the FBA 2018 remote gassing adapter, Calibrationbox-i, signal horns, and illuminated warning signs. Core sensing technologies include electrochemical, infrared, pellistor (catalytic bead), photoionization, and ionic sensors, with products certified for ATEX Zone 1 and Zone 2 hazardous areas.
The company serves a diverse set of industrial verticals through direct sales from its Achern headquarters and through the international Safe Monitoring Group (SMG) network. Primary application areas include the hydrogen economy (production, storage, transport, mobility, fuel cells, electrolyzers), laboratories and research institutes, hazardous goods storage, parking garages and tunnels (CO, NO, NO2 monitoring per VDI 2053 and EN50545-1:2011), heating rooms and HVAC refrigerant monitoring, LPG/LNG/CNG handling, sewage treatment, biogas production, and process industries including printing, coating, and beverage. Revenue is generated through four streams: hardware sales of gas detection systems, professional services (project planning, plant engineering, installation, commissioning), recurring maintenance contracts including a premium 24/7 tier (performed only by factory-certified electricians under BG RCI / DGUV guidelines), and customized OEM solutions. The company holds ISO 9001:2025 and ISO 14001:2015 certifications, is a GmbH registered at the Mannheim Commercial Register under HRB 220157, and operates as a member of the SMG alliance led by Alexander Larsson, with Stefan Hempel serving as Managing Director (Geschäftsführer).
The company was founded in 1967 (per firmographic records) with company history materials referencing 1970 and over 50 years of gas detection expertise, and it has recently expanded headcount and celebrated its most successful month in company history.
Bieler + Lang firmographics
Firmographics- Name
- Bieler + Lang
- Legal name
- Bieler+Lang GmbH
- Website
- https://bieler-lang.de
- Company type
- Private
- Founded year
- 1970
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Bieler + Lang GmbH is a German manufacturer of ATEX-certified fixed gas detection and warning systems, serving industrial customers across hydrogen, laboratory, parking garage, hazardous goods, HVAC, and process industry verticals through direct sales and the Safe Monitoring Group international network.
- Ownership category
- akta.pro rank
Bieler + Lang industry classification
Industry- Product category
- Industrial Gas Detection Equipment
- NAICS
- Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Analytical Laboratory Instrument Manufacturing (334516)
- SIC
- Industrial Instruments For Measurement, Display, And Control (3823)
- 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), Specialty & Calibration Gas Mixtures (IMAEACAE)
Keywords
Where Bieler + Lang is headquartered
LocationHeadquarters
- HQ city
- Achern
- HQ country
- Germany
- HQ region
- Europe
Offices1 record
Markets served
Bieler + Lang business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales
Revenue model
- Gas Detection Hardware Sales: Sale of fixed gas detection and warning systems including controllers, gas detectors/sensors, and accessories. Products are manufactured in-house at the certified production facility in Achern, Germany. One-time hardware purchase model.
- Professional Services: Project planning, plant engineering, installation and commissioning of gas warning systems. Individual system manufacturing from small enclosures to floor-standing cabinets. Factory service department handles project management, installation, and startup.
- Maintenance Contracts: System-specific maintenance contracts offered at fair conditions. Standard and Premium 24/7 maintenance contracts available. Maintenance performed according to BG RCI T023 (DGUV 213-057) and T021 (DGUV 213-056) guidelines. Only factory-certified electricians are authorized for maintenance.
- OEM Custom Solutions: Customized gas detection solutions manufactured for OEM customers, including bespoke enclosures and configurations to customer specifications.
Go-to-market motion1 record
Distribution channels4 records
Marketing channels9 records
Bieler + Lang product offering
Product offeringCore offering
Bieler + Lang GmbH manufactures fixed gas detection and warning systems for industrial and commercial applications. The company develops, produces, and distributes gas detectors, evaluation units/controllers, and accessories designed to monitor toxic, combustible, and asphyxiant gases in workplaces such as hydrogen facilities, laboratories, hazardous goods storage areas, and parking garages. In addition to hardware, the firm offers project planning, plant engineering, maintenance, training, and OEM/electronics manufacturing services.
Product overview
Bieler+Lang develops, produces, and distributes high-performance gas detection and warning systems for maximum safety and minimum risk of failure. The product portfolio centers on a modular ecosystem comprising: Controllers/Evaluation Units (GMC series including GMC 635-Plus, GMC 650, GMC 750, GMC 8032/8034, GMC 8420, GMC Ecoline 8304, SafePark GATEWAY-C/C+6, GMC 650C SafePark HMI) that process signals from Gas Detectors (ExDetector series including X5, HC 100/100K, HC 150/150K, HC 200, SC 220, ExMonitor; GasDetector IR-220; GasMonitor; GasMonitor 30; GasMonitor 30 O2; and SafePark-specific GM 750 detectors for CO, NO, NO2). These are complemented by Accessories including RK 8420 relay extension, FBA 2018 remote gassing adapter, Calibrationbox-i, Signal Horn SH 220, flashing lights, illuminated banners, and mounting brackets. The systems support multiple interfaces (2-wire BUS, 4-20mA) and ATEX certifications for various explosion hazard zones. Comprehensive services include project planning, plant engineering, installation, maintenance/repair with 24/7 premium options, OEM solutions, B+L Academy training, and certified electronics manufacturing in southern Germany. The company operates as part of the international Safe Monitoring Group (SMG) and maintains ISO 14001 and ISO 9001 certifications. Key application areas include hydrogen, laboratories, hazardous goods warehouses, boiler rooms, parking garages, LPG/LNG/CNG, sewage treatment, and biogas.
Differentiator
Problem solved
Functional benefit
Brands
- SafePark: Product line specifically designed for parking garage gas warning systems, including controllers, detectors, and illuminated signs for underground parking facilities.
- B+L Academy
Products and services
- ExDetector Gas Detector Series
- GasDetector IR-220
- GasMonitor
- GMC Evaluation Unit / Controller Series
- SafePark GATEWAY Series
- GM 750 SafePark
- FBA 2018 Accessory
- Calibrationbox-i
- Signal Horn
- Project Planning and Plant Engineering Services
- Maintenance and Service
- B+L Academy Training
- OEM and Electronics Manufacturing Services
Companies that use Bieler + Lang
Customer profileSegments11 records
Ideal customer profiles3 records
Bieler + Lang technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature8 records
Bieler + Lang partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered core and minor.
- Safe Monitoring Group (SMG)coreBieler+Lang is part of the international Safe Monitoring Group (SMG), led by Alexander Larsson. SMG unifies various companies in gas detection technology worldwide, offering fixed gas detection systems, training for users and experts, rental, distribution, and maintenance of portable gas detectors. SMG provides international reach and cross-company synergies in the gas detection industry.
- CPC (Cooperation Partner)minorInternational partner within the SMG network, providing distribution and sales support for Bieler+Lang products in certain regions.
- CSE-ToolsminorInternational partner within the SMG network for gas detection distribution and sales.
- EiUKminorInternational partner within the SMG network for gas detection distribution in UK markets.
- IGD International Gas DetectorsminorInternational partner within the SMG network for gas detection distribution.
- InduProminorInternational partner within the SMG network for gas detection distribution.
- Schick GaswarnanlagenminorInternational partner within the SMG network for gas warning systems distribution.
Scale indicators4 records
Recent moves6 records
Expansion highlights6 records
Bieler + Lang competitors and assessment
Company assessmentBroad incumbents
- MSA Safety: Global safety equipment manufacturer offering fixed gas detection systems alongside a broader safety portfolio, competing for the same industrial customers as Bieler+Lang with greater international scale.
- Honeywell Analytics: Honeywell's gas detection division offers fixed and portable gas detectors across industrial safety, oil and gas, and emerging hydrogen applications, directly competing with Bieler+Lang's core product lines.
- Emerson (Rosemount Analytical): Emerson's process analytical instrumentation portfolio includes fixed gas analyzers and detection systems for industrial process and safety applications, serving the same end-customers as Bieler+Lang in hydrogen, chemical, and process industries.
Direct peers
- Dräger (Drägerwerk): Lübeck-based global safety technology company with a large portfolio of fixed and portable gas detectors for industrial safety, directly competing with Bieler+Lang in the German Mittelstand and broader European markets.
- Riken Keiki: Japanese gas detection specialist offering fixed gas detectors and sensors for combustible and toxic gases, directly comparable to Bieler+Lang's ExDetector and GasMonitor product families.
- Industrial Scientific: Global gas detection company specializing in both fixed and portable detectors for industrial safety, overlapping with Bieler+Lang's industrial customer base in process and hazardous environment applications.
- Crowcon Detection Instruments: UK-based gas detection specialist (part of Halma plc) offering fixed and portable gas detection systems, directly competing in European industrial and laboratory safety markets.
- IGD International Gas Detectors: UK-based gas detection specialist focused on fixed gas detection for industrial safety, listed as an SMG partner and operating in overlapping European end-markets with Bieler+Lang.
- Samon: Swedish specialist in refrigerant gas detection, listed as an SMG partner, with overlapping product capabilities in fixed gas detection for cooling and refrigeration applications.
- Schick Gaswarnanlagen: German gas detection and warning systems manufacturer, listed as an SMG partner, directly comparable to Bieler+Lang in fixed gas detection for industrial and commercial applications.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Bieler + Lang social profiles
Digital presenceBieler + Lang compliance and trust
Trust signalCompliance5 records
Bieler + Lang financial estimates
Financial estimateRevenue estimate
Valuation estimate
Bieler + Lang leadership team
Management profileNumber of profiles
Profiles1 record
Bieler + Lang funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Bieler + Lang M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Bieler + Lang
What does Bieler + Lang do?
Bieler + Lang GmbH manufactures fixed gas detection and warning systems for industrial and commercial applications. The company develops, produces, and distributes gas detectors, evaluation units/controllers, and accessories designed to monitor toxic, combustible, and asphyxiant gases in workplaces such as hydrogen facilities, laboratories, hazardous goods storage areas, and parking garages. In addition to hardware, the firm offers project planning, plant engineering, maintenance, training, and OEM/electronics manufacturing services.
Is Bieler + Lang a public or private company?
Bieler + Lang is a private company. It is classified as corporate owned and is currently operating.
When was Bieler + Lang founded?
Bieler + Lang was founded in 1970. It employs 101 to 250 people.
Where is Bieler + Lang based?
Bieler + Lang is headquartered in Achern, Germany, in the Europe region.
How does Bieler + Lang make money?
Four revenue lines are on record. Gas Detection Hardware Sales are the primary driver. The others are professional Services, maintenance Contracts and OEM Custom Solutions.
Who are Bieler + Lang's main competitors?
Broad incumbents on record are MSA Safety, Honeywell Analytics and Emerson (Rosemount Analytical). Direct peers are Dräger (Drägerwerk), Riken Keiki, Industrial Scientific, Crowcon Detection Instruments, IGD International Gas Detectors, Samon and Schick Gaswarnanlagen.
Does Bieler + Lang have an API?
No public API is recorded for Bieler + Lang.
What industry is Bieler + Lang in?
Bieler + Lang's product category is Industrial Gas Detection Equipment. Its primary akta.pro industry code is EUAJADAB, Fixed Gas Detection & Continuous Monitoring (Sensors/IoT/Telemetry), with a secondary code of IMAGAFAE, Process Analytical Instrumentation (Gas analyzers, spectroscopy, pH/ORP, conductivity). Its NAICS code is 334512 and its SIC code is 3823.