Stego International Gmbh

What Stego International Gmbh does

Stego International GmbH (legally STEGO Elektrotechnik GmbH) is a privately held, owner-managed German industrial company founded in 1980 in Schwäbisch Hall, specializing in thermal management solutions for electrical control cabinets and enclosures. Its six-line product portfolio covers heating (convection, fan, PTC, intelligent, Touchsafe variants), cooling (Filter Fan Plus and standard filter fans), regulating (thermostats, hygrostats, hygrotherms), measuring (IO-Link smart sensors for temperature, humidity, and current), LED enclosure lighting, and accessories. Products are designed to prevent condensation, overheating, and corrosion in electronic enclosures, serving primary verticals including control cabinet construction, wind power, e-mobility charging infrastructure, energy suppliers, machine building, traffic control, and renewable energy.

The underlying technology is built on proprietary PTC heating elements, innovative flap-based filter fan designs (Filter Fan Plus), and a growing portfolio of IO-Link–native smart sensors (CSS 014 climate sensor, ESS 076 single- and three-phase current sensors, IOC 074 IO-Link converter) that enable digital condition monitoring and Industry 4.0 integration. The eightLines achtBytes corporate start-up provides a manufacturer-independent IoT/SaaS platform with cloud connectivity, device management, edge computing, dashboards, and alerts for IO-Link devices, creating a software layer on top of Stego's hardware. Products carry VDE, UL, and IP56 certifications, and Stego was the first in its industry to register products in the EPREL EU energy labelling database.

Stego monetizes through B2B hardware sales of proprietary components via a field-sales-led go-to-market: 10 wholly-owned regional subsidiaries (Germany, USA, Brazil, France, UK, Sweden, Spain, Italy, Poland, China), distributors in approximately 50 countries, and a digital self-serve layer (product finder, calculation tool, multilingual websites). Export quota exceeds 50%, with production in Germany and France. Pricing is quote-based and not publicly disclosed. The company has 220+ employees worldwide (~150 in Germany), appointed a new Managing Director in Q1 2024, acquired ~5,000 sqm of expansion property in 2024, and continues to launch smart/IO-Link products on a 2023–2026 cadence.

Name

Stego International Gmbh

Legal name

STEGO Elektrotechnik GmbH

Website

https://stego-group.com

Company type

Private

Founded year

1980

Operating status

Operating

Short description

Stego International GmbH is a privately held German manufacturer of thermal management solutions — heating, cooling, regulating, sensing, and lighting — for industrial control cabinets and enclosures, serving wind, e-mobility, energy, and machine-building OEMs across 10 subsidiaries and 50 countries.

Ownership category

akta.pro rank

Product category

Industrial Thermal Management for Enclosures

NAICS

Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (3334), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564)

akta.pro primary industry

HVAC Equipment (Heating, Cooling & Air Handling) (IMAHAKAB)

akta.pro secondary industries

Thermal Management Components (Heat sinks, TIMs, fans/blowers, thermal pads) (IMAGAJAL), Refrigeration Components & Controls (Compressors, Valves, Sensors) (IMAHAKAH)

Keywords

• Enclosure thermal management
• Control cabinet heating
• Filter fan cooling
• IO-Link industrial sensors
• LED enclosure lighting

Headquarters

HQ city

Schwäbisch Hall

HQ country

Germany

HQ region

Europe

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Product Sales: Sale of thermal management products including enclosure heaters, filter fans, thermostats, hygrostats, LED lamps, sensors, and accessories for industrial control cabinet applications. Export quota exceeds 50% with production in Germany and France.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Stego designs, manufactures, and globally distributes thermal management hardware for electrical enclosures and control cabinets, including PTC enclosure heaters, Filter Fan Plus cooling units, thermostats, hygrostats, LED enclosure lamps, and IO-Link smart sensors for temperature, humidity, and current monitoring. The portfolio enables industrial customers in control cabinet construction, wind power, e-mobility charging infrastructure, energy utilities, and machine building to protect sensitive electronics from condensation, temperature extremes, and humidity. Production is based in Germany and France, with wholly owned subsidiaries in 10 countries and distributor coverage in roughly 50 countries.

Product overview

STEGO develops and manufactures thermal management solutions for control cabinets and technical installation spaces under the brand 'Made by STEGO'. The product portfolio consists of six interconnected core lines: (1) Heating products (convection heaters, fan heaters, DC applications, integrated regulation, Touchsafe touch-protected heaters, plus specialized RC 016 and Loop series PTC heaters, and intelligent CS 032); (2) Cooling products (Filter Fan Plus series in AC/DC variants across 5 sizes with FPI/FPO configurations, plus standard Filter Fans); (3) Regulating products (KTO 111/KTS 111 thermostats, MFR 012 hygrostat, hygrotherms); (4) Measuring products (CSS 014 Smart Sensor with IO-Link for temperature/humidity, ESS 076 Smart Current Sensor in single/three-phase versions, IOC 074 IO-Link converter for analog-to-digital conversion); (5) LED Enclosure Lamps (LED 025, Varioline range up to 1,700 lumen, SL 025); and (6) Accessories (sockets, pressure compensation devices). These products work together as a complete thermal management system where sensors measure climate parameters, thermostats and hygrostats regulate heating/cooling activation, heaters and filter fans adjust temperature, and LED lamps provide workspace illumination—all contributing to fail-safe operation of electronics in enclosures.

Differentiator

Problem solved

Functional benefit

Brands

• achtBytes: IoT platform for IO-Link devices - a corporate start-up of STEGO providing manufacturer-independent IoT platform for industrial automation applications
• Filter Fan Plus
• Loop Series
• Smart Sensor CSS 014
• ESS 076

Products and services

• Enclosure Heating Products Complete range of PTC enclosure heaters (convection, fan, contact, DC, Touchsafe, and Loop Series variants) plus the CS 032 intelligent heater, designed to prevent subnormal temperatures and condensation inside control cabinets and technical installation spaces. Sold to control cabinet builders and industrial OEMs.
• Enclosure Cooling Products (Filter Fan Plus Series) Filter fans and cooling units for electrical enclosures, including Filter Fan Plus AC, Filter Fan Plus DC, and standard Filter Fan variants in sizes 1-5 with configurable airflow IN (FPI) or OUT (FPO). Delivers up to IP56 protection with hose-proof hood accessory; VDE and UL certified.
• Regulating Products (Thermostats and Hygrostats) Temperature and humidity control devices for enclosures, including KTO 111 (NC) and KTS 111 (NO) bimetal thermostats, MFR 012 hygrostat, and hygrotherm units, used to switch enclosure heaters, filter fans, and other climate equipment.
• Measuring Products (Smart Sensors and IO-Link Devices) IO-Link digital sensors for condition monitoring of control cabinets, including the CSS 014 Smart Sensor (temperature -40 to +80°C, humidity 0-100% RH), ESS 076 Smart Current Sensor (single-phase and three-phase contactless), and IOC 074 IO-Link Converter that digitizes up to three 4-20 mA analog signals. Designed for Industry 4.0 applications.
• LED Enclosure Lamps LED lamps for enclosure and control cabinet illumination, including the LED 025 (launched 2009), Varioline range (LED 021/022, LED 121/122), and SL 025. Deliver up to 1,700 lumen with 60,000-hour service life and 6,500 K color temperature.
• Enclosure Accessories Supporting accessories for thermal management installations, including sockets, pressure compensation devices, and other complementary components for control cabinets.

Quantifiable outcome

• Filter Fan Plus series with flap technology provides increased air capacity compared to traditional filter fans with filter mats
• +2 more outcomes

Segments7 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

AI capability3 records

Feature5 records

Partnerships

One partnership is on record.

• achtBytescoreTechnology or IntegrationachtBytes is a STEGO Corporate Start-up that provides an intuitive, manufacturer-independent IoT platform specifically optimized for IO-Link devices. The platform enables easy and fast entry into Industry 4.0 applications based on IO-Link carrier technology, offering cloud connectivity, device management, data management, edge computing, workflow editing, central parameterization, dashboards, alerts, and sensor-actuator control as a Software-as-a-Service (SaaS) solution.

Scale indicators5 records

Recent moves8 records

Expansion highlights6 records

Others

• Ziehl-Abegg: Ziehl-Abegg is a leading manufacturer of fans, blowers, and motors for industrial ventilation — a component supplier and adjacent player whose products often integrate into enclosure climate solutions comparable to Stego's.
• Bel Fuse: Bel Fuse manufactures magnetics, power, and protection components for industrial and networking applications — adjacent to Stego's electrical enclosure ecosystem through shared industrial customers and overlapping channel partners.

Direct peers

• Rittal: Rittal (Friedhelm Loh Group) is the global market leader in industrial enclosures and offers an integrated climate control product line (enclosure heaters, filter fans, cooling units) that directly competes with Stego inside the same customer base of panel builders.
• Pfannenberg: Pfannenberg is a German-headquartered specialist in thermal management for industrial enclosures, offering filter fans, heaters, air conditioners, and chillers — a near-direct portfolio overlap with Stego across HVAC, cooling, and thermal protection of control cabinets.
• Hammond Manufacturing: Hammond Manufacturing produces electrical enclosures and complementary thermal management products (heaters, fans, blowers), serving the same industrial OEM and control cabinet builder customer segments as Stego.
• nVent Electric (Hoffman brand): nVent's Hoffman brand supplies enclosures plus thermal management accessories (heaters, fans, air conditioners) for industrial cabinets in North America and globally, competing head-to-head with Stego in HVAC and climate-control product categories.

Broad incumbents

• Schneider Electric: Schneider Electric offers ClimaSys thermal management for enclosures as part of a broader industrial automation, power distribution, and energy management portfolio, competing with Stego through bundled solutions rather than as a pure-play.
• Eaton: Eaton's Electrical Americas segment supplies enclosure climate control products alongside a wide portfolio of power management and industrial components, competing with Stego in the same end markets at the cabinet level.

Emerging players

• Finder: Finder produces relays, timers, thermostats, and monitoring relays used in industrial control cabinets, overlapping with Stego's regulating and measuring product lines (KTO/KTS thermostats, hygrostats, IO-Link sensors) for panel builders.
• Cosmostar: Cosmostar is an Italian manufacturer specializing in filter fans and axial fans for industrial enclosures, providing overlapping product functionality with Stego's Filter Fan Plus line, particularly in the EMEA region.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries5 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 Stego International Gmbh