Graff

What Graff does

Gräff GmbH is a third-generation, family-owned German industrial manufacturer founded in 1946 and headquartered in Troisdorf, Germany. The company designs and produces temperature measurement sensors (thermocouples, resistance thermometers), melt pressure sensors, electric heating elements, ISOMA insulation sleeves, and electronic controllers/indicators. Its underlying technology centers on proprietary membrane/sensor construction, certified for hazardous areas (ATEX/IECEx), functional safety (SIL2), food contact (FDA), and marine (DNV) environments, supporting demanding process applications.

Gräff serves B2B industrial customers across at least seven verticals — plastics processing, food and pharma, steel and furnace, automotive, glass, metalworking, construction, and textile — selling customized, configured-to-order hardware rather than commodity catalog parts. Its catalog comprises roughly 5,000 base products that can be combined into 20,000+ variants, with customers specifying parameters through a CAD-based online configurator. The ISOMA insulation sleeve line is positioned to deliver 20–50% energy-cost reduction in heating/holding applications, giving the company an efficiency-based selling proposition rather than pure sensor pricing.

The business model is project-driven B2B sales with quote-based pricing, executed through a direct sales force in Germany and an international agency partner network covering roughly eight export countries. The company does not disclose revenue, headcount is reported at 51–100 (one source indicates 100+), and it carries a broad portfolio of regulatory certifications (ISO 9001:2015, ATEX, IECEx, SIL2, FDA, CE, RoHS, DNV Marine, UL/cUL). Multiple certifications and custom-engineering capability, rather than scale or volume, are the primary commercial differentiators.

Name

Graff

Legal name

Gräff GmbH

Website

https://graeff-gmbh.com

Company type

Private

Founded year

1946

Operating status

Operating

Headcount range

1–10 employees

Short description

Gräff GmbH is a family-owned German industrial manufacturer producing custom temperature sensors, melt-pressure transducers, electric heaters, and insulation sleeves for B2B customers in plastics, food/pharma, steel, automotive, and other process industries.

Ownership category

akta.pro rank

Headquarters

HQ city

Troisdorf

HQ country

Germany

HQ region

Europe

Offices1 record

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. Temperature Sensors: Custom-manufactured thermocouples and resistance thermometers. B2B industrial sales with project-specific configurations. Delivery times of 2-3 weeks for standard products.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels3 records

Core offering

Gräff GmbH manufactures and sells high-precision temperature sensors (thermocouples and resistance thermometers), melt pressure sensors, industrial electric heating elements, thermal insulation sleeves (ISOMA), and temperature/process control electronics. All products are custom-engineered and produced at the company's Troisdorf facility in Germany for industrial B2B customers across plastics, food, steel, automotive, glass, and furnace sectors.

Product overview

Gräff GmbH is a German manufacturer of temperature, measurement, and control technology. The product portfolio consists of five core categories: (1) Temperatursensorik – over 5,000 thermocouples and resistance thermometers across the GF-7003 to GF-9000 series; (2) Massedrucksensorik – melt pressure sensors and transmitters (DA, DAI, DTA, DTAI, HPL) for the plastics industry; (3) Elektrowärmetechnik – industrial heating elements including cylinder heaters (ZHB, KHB), cartridge heaters (HLP-HP/S), and nozzle heaters (DHB); (4) Isoliermanschetten – ISOMA thermal insulation sleeves; and (5) Elektronik – temperature controllers (GTL, GTR/P), limit alarms (PR4131), and safety temperature limiters (STB/STB45, STL50). All products are manufactured in Germany at the Troisdorf facility.

Differentiator

Problem solved

Functional benefit

Brands

• ISOMA: Insulation sleeves product line - Gräff ISOMA insulating sleeve for reducing heat loss and improving thermal efficiency

Products and services

• Temperatursensorik (Temperature Sensor Technology) High-precision temperature sensors including thermocouples (Fe-CuNi/L, Fe-CuNi/J, NiCr-Ni/K) and resistance thermometers (Pt50/Pt100/Pt500/Pt1000) with over 5,000 product variants and 20,000+ configuration options. Customers can individually configure sensors via a CAD configurator and export to all common CAD formats.
• Massedrucksensorik (Melt Pressure Sensors) Melt pressure transducers and transmitters (DA, DAI, DTA, DTAI, HPL series) for plastics processing. Stainless steel construction with innovative membrane design, mercury-free, NaK-free, FDA-compliant for food and pharmaceutical applications. Pressure ranges up to 2000 bar with 0.15%/0.25%/0.50% accuracy classes.
• Elektrowärmetechnik (Electric Heating Technology) Industrial heating elements including cylinder heaters (ZHB, KHB), cartridge heaters (HLP-HP/S), flange heaters (FHK), tube heaters (RHK), nozzle heaters (DHB, DHB/K), immersion heaters (EHK), and air heaters (ELT) for industrial process heating up to 650°C.
• Isoliermanschetten (ISOMA Insulation Sleeves) ISOMA thermal insulation sleeves for cylinders and heating elements achieving 20-50% energy cost reduction. Standard temperature resistance up to 500°C, optional up to 1000°C, with thermal conductivity below 0.1 W/mK. Improves workplace safety and process efficiency.
• Elektronik (Process Control Electronics)

Quantifiable outcome

• 20-50% energy cost reduction achievable with ISOMA insulation sleeves
• +3 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Eight partnerships are on record, tiered core.

• Gary Duncan Merchanting LimitedcoreChannel Partner/ Reseller/ DistributorExclusive sales representative for United Kingdom. Located in West Moors, Dorset. Handles sales, technical support and customer service for UK customers.
• Oy Meyer vastus AbcoreChannel Partner/ Reseller/ DistributorExclusive sales representative for Finland and Scandinavia. Located in Monninkylä, Finland. Handles regional sales and support.
• K. Mösch AGcoreChannel Partner/ Reseller/ DistributorExclusive sales representative for Switzerland. Located in Mägenwil, Switzerland. Handles sales and technical support for Swiss market.
• measurement&heating (Patrick Theunissen)coreChannel Partner/ Reseller/ DistributorExclusive sales representative for Benelux region. Located in Tessenderlo, Belgium. Handles regional sales, consulting and support.
• Tekno MakinecoreChannel Partner/ Reseller/ DistributorExclusive sales representative for Turkey. Located in Istanbul, Turkey. Provides sales and technical services for Turkish market.
• Beijing ZKCX S & T Co., LtdcoreChannel Partner/ Reseller/ DistributorExclusive sales representative for China. Based in Beijing. Handles sales, distribution and technical support for Chinese market.
• GNN Co., Ltd.coreChannel Partner/ Reseller/ DistributorExclusive sales representative for Vietnam. Head office in Ho Chi Minh City. Handles sales and support for Vietnamese market.
• HD Thermoline Ltd.coreChannel Partner/ Reseller/ DistributorExclusive sales representative for Israel. Located in Haifa, Israel. Provides sales and technical services for Israeli customers.

Scale indicators8 records

Recent moves13 records

Expansion highlights6 records

Direct peers

• WIKA: WIKA Alexander Wiegand SE & Co. KG is a global German manufacturer of measurement technology for pressure, temperature, level, and flow — overlapping directly with Gräff's temperature and melt pressure sensor lines and serving similar industrial customers.
• Endress+Hauser: Endress+Hauser is a German/Swiss manufacturer of process automation instrumentation including temperature and pressure measurement. It competes with Gräff in industrial process applications, though at significantly larger scale and broader global footprint.
• ifm electronic: ifm electronic gmbh is a German manufacturer of sensors and industrial automation components for process and factory automation. It overlaps with Gräff in industrial temperature and process sensing applications, though with a stronger digital/IIoT positioning.
• JUMO: JUMO GmbH & Co. KG is a German manufacturer of industrial measurement and control technology, including temperature sensors, pressure transmitters, controllers, and recorders. It is the closest direct peer to Gräff in product portfolio, customer base, and German Mittelstand positioning.
• GHM Messtechnik: GHM Messtechnik GmbH is a German specialist in industrial sensors and measurement technology. It serves similar industrial verticals as Gräff with comparable product categories (temperature, pressure, level) and is similarly sized as a German Mittelstand sensor manufacturer.
• Bürkert: Bürkert GmbH & Co. KG is a German manufacturer of fluid control systems, sensors, and measurement technology. It competes with Gräff in process measurement for industrial fluids, plastics, and food/pharma applications.

Broad incumbents

• Beckhoff Automation: Beckhoff Automation GmbH & Co. KG is a German manufacturer of PC-based control, I/O, and automation technology. It competes with Gräff's process controller line in industrial temperature/process control, though at a much broader automation portfolio scale.
• ABB: ABB Ltd. is a global industrial automation and electrification company whose Process Automation division offers temperature and pressure instrumentation competing with Gräff in large industrial process plants and hazardous-area applications.
• Siemens: Siemens AG is a global German industrial conglomerate with a Digital Industries division that includes process instrumentation, controllers, and automation. It competes with Gräff at the high end of industrial measurement and control, especially in large process plants.
• Phoenix Contact: Phoenix Contact GmbH & Co. KG is a German manufacturer of industrial automation, connection, and interface technology. While broader than Gräff, its industrial control and connectivity portfolio overlaps with Gräff's temperature controllers and safety limiters in factory automation.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance15 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 Graff