DEHN SE Co.KG

What DEHN SE Co.KG does

DEHN SE is a privately held, family-owned German electrical engineering company founded in 1910 and headquartered in Neumarkt, Germany. The company designs, manufactures, and sells surge protection devices (SPDs), lightning protection systems, earthing/grounding components, and electrical occupational safety equipment, organized across three principal hardware lines — Red/Line for energy technology (up to 1,000 V AC / 1,500 V DC), Yellow/Line for information technology and building automation, and a comprehensive external lightning protection and earthing portfolio including HVI high-voltage-resistant insulated downleads. DEHN holds proprietary technologies such as RAC (Rapid Arc Control), ACI (Advanced Circuit Interruption), RADAX-Flow, HVI, and Thermo-Dynamic Control, and operates a DIN EN ISO/IEC 17025-accredited in-house Test Centre plus an active role in DIN/IEC standards development that functions as a regulatory moat.

DEHN serves eight primary use-case segments: residential buildings (including prosumer installations with PV, wallboxes, and heat pumps), industrial and commercial buildings, healthcare and critical infrastructure, data centers, the energy sector (renewables, battery storage, smart grids, hydrogen), e-mobility charging infrastructure, telecommunications, and railway infrastructure, plus occupational electrical safety. Reference customers include KAMPA, INTILION, VARTA Storage, Netze BW, co.met, IDS GmbH, Charité Berlin, Klinikum Ingolstadt, Helmholtz Zentrum, FEST GmbH, and Fischer Automobile — indicating adoption across utilities, hospitals, OEMs, and research institutions.

The business model combines one-time hardware sales (DEHNguard, DEHNshield, DEHNventil, BLITZDUCTOR, DEHNcube, DEHNcare, DEHNshort, etc.) with recurring revenue from engineering services, the DEHN Test Centre, paid training through DEHNacademy (including the new DEHNplan Learning Journey subscription), and condition monitoring (DEHNrecord). Go-to-market is dual-pronged: direct field sales and engineering consulting for complex enterprise projects, supported by a direct-to-customer e-commerce storefront and an international network of eight regional subsidiaries plus distribution partners across 30+ European countries and selected markets in the Americas, Asia & Oceania, and Africa & the Middle East. Marketing leverages content (BLITZPLANER), e-learning, podcasts, YouTube, and major industry trade shows such as The smarter E Europe and A+A.

Name

DEHN SE Co.KG

Legal name

DEHN SE

Website

https://dehn.de

Company type

Private

Founded year

1910

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

DEHN SE is a German family-owned manufacturer founded in 1910, specializing in lightning protection, surge protection, earthing systems, and electrical occupational safety equipment. The company serves industrial, commercial, residential, energy, healthcare, data center, e-mobility, telecom, and rail customers globally through direct sales, e-commerce, and international subsidiaries.

Ownership category

akta.pro rank

Product category

Electrical Protection Equipment

NAICS

Electrical Equipment Manufacturing (33531), Wiring Device Manufacturing (33593), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600), Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

Circuit Protection Devices (MCBs, MCCBs, ACBs, fuses, RCD/GFCI, surge protection) (IMAGAEAB)

akta.pro secondary industries

Grounding, Bonding & Lightning Protection (grounding bars, clamps, earthing systems, lightning arrestors) (IMAGAEAJ), Power Quality, Metering & Monitoring (HDACAJAG), EMI/Shielding, Grounding & Surge Protection for Cabling Systems (HDAFALAL)

Keywords

• Surge protection devices
• Lightning protection systems
• Arc fault protection
• Earthing and grounding equipment
• Electrical safety products

Headquarters

HQ city

Neumarkt

HQ country

Germany

HQ region

Europe

Offices9 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Surge Protection Devices and Systems: DEHN generates revenue primarily through the sale of surge protection devices (SPDs), lightning protection components, earthing systems, and associated accessories. Products are sold through direct sales, online store, and channel partners globally. Revenue is one-time (product purchase) with recurring service and maintenance revenue from engineering services, testing, and inspection services.
2. Professional Services (Engineering, Testing, Training): DEHN offers fee-based engineering services for lightning protection planning, risk analysis, earthing simulation, and budget planning. The DEHNacademy provides paid seminars, e-learning, online courses, and the DEHNplan Learning Journey training program. Testing and inspection services are also offered through the DEHN Test Centre.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels8 records

Core offering

DEHN manufactures and sells surge protection devices (SPDs), lightning protection systems, earthing/grounding solutions, and occupational electrical safety equipment (PPE, arc fault protection). The portfolio covers three main hardware lines — Red/Line for energy technology surge protection up to 1,000 V AC / 1,500 V DC, Yellow/Line for information technology surge protection, and external lightning protection/earthing components. Complementary offerings include DEHNplan 2.0 BIM planning software, engineering services, accredited testing at the DEHN Test Centre, and the DEHNacademy training platform.

Product overview

DEHN SE is a family-owned electrical engineering company specializing in lightning protection, surge protection, and work safety since 1910. The product portfolio is organized into three main hardware lines: Red/Line for energy technology surge protection (systems up to 1000 V AC / 1500 V DC) featuring products like DEHNguard, DEHNventil, DEHNshield, and DEHNcube; Yellow/Line for information technology surge protection including BLITZDUCTORconnect, DEHNpatch, and DEHNbox; and a comprehensive lightning protection and earthing portfolio with HVI conductors, earth electrodes, clamps, and mounting systems. The work safety division covers DEHNcare arc-rated clothing, DEHNshort arc fault protection, DEHNsense EFD detectors, DEHNproX inspection cameras, and DEHNarX risk assessment services. Supporting the hardware portfolio is a suite of digital tools: DEHNplan 2.0 BIM-compatible planning software, DEHNproject for collaborative project management, DEHNrisk for lightning risk assessment, DEHNselect for residential building configuration, the BLITZPLANER digital reference work, and DEHNacademy training platform. Services include DEHN Engineering Services for professional planning, DEHN Test Centre for accredited testing, and Condition Monitoring via DEHNrecord.

Differentiator

Problem solved

Functional benefit

Brands

• Red/Line: Surge protection product line for energy technology applications up to 1,000 V AC / 1,500 V DC
• Yellow/Line
• DEHNcare
• DEHNplan
• DEHNrecord
• DEHNshort
• DEHNsense
• DEHNproX
• DEHNarX
• BLITZDUCTOR
• DEHNshield
• DEHNguard
• DEHNventil
• DEHNcube
• DEHNpatch
• DEHNgate
• DEHNwork
• DEHNacademy
• DEHNproject
• DEHNrisk
• DEHNselect
• DEHNiso
• BLITZPLANER

Products and services

• Red/Line Surge Protection (Energy Technology)

Quantifiable outcome

• DEHN and Celsion fire test confirmed: surge protection devices remain fully functional after exposure to over 900°C for 33 minutes in a real-fire test at MPA Universität Stuttgart.
• +1 more outcomes

Named customers12 records

Segments9 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature10 records

Partnerships

One partnership is on record.

• Celsion Brandschutzsysteme GmbHcoreStrategic or Co-development Partner · 5 March 2026DEHN and Celsion partnered to conduct a real-fire test at MPA Universität Stuttgart, exposing surge protection devices inside Celsion's CK30 fire protection housing to over 900°C for 33 minutes. The test confirmed that DEHN surge arresters combined with the Celsion CK30 housing remain fully functional under extreme fire conditions, meeting the requirements of the MLAR (Muster-Leitungsanlagen-Richtlinie) for safety-critical systems such as fire alarm systems and voice alarm systems.

Scale indicators2 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• ABB: Global broad-line electrical equipment and automation incumbent offering surge protection, power quality, and substation-level lightning protection as part of wider electrification and data-center solutions, often bundled with switchgear and transformers.
• Eaton: US-based power management company with a dedicated surge protection and power-quality division (including legacy Cutler-Hammer / Bussmann SPDs) that competes with DEHN in industrial, utility, and data-center applications.
• Legrand: Global electrical and digital building infrastructure incumbent with SPDs, UPS-adjacent protection, and wiring device portfolios competing with DEHN in residential, commercial, and data-center segments.
• Siemens: Global electrical engineering incumbent whose Smart Infrastructure division offers SPDs, lightning protection components, and power-quality solutions integrated into building, data-center, and grid portfolios competing with DEHN's project business.
• Schneider Electric: Global energy management and automation incumbent with surge protection, power monitoring, and data-center infrastructure offerings; competes with DEHN in data centers, healthcare, and energy distribution segments via bundled solutions.
• nVent Electric: Global electrical connection and protection solutions company (including ERIFLEX and nVent ERIFLEX brands) with surge protection, grounding, and enclosure thermal management offerings that overlap with DEHN's protection and earthing portfolio in industrial and infrastructure projects.

Direct peers

• Weidmüller: German specialist in industrial connectivity, electronics, and surge protection for cabinets and process applications; overlaps with DEHN's Yellow/Line data-line protection and Red/Line industrial SPD portfolios.
• Hager: German/European specialist in residential and commercial electrical installation equipment, including SPDs and protection concepts for buildings; comparable to DEHN's residential segment and SME channel approach.
• Phoenix Contact: German manufacturer of industrial electrical connectivity, automation, and surge protection devices; overlaps directly with DEHN's Red/Line and Yellow/Line SPD portfolios, especially in industrial automation, energy, and infrastructure applications.
• OBO Bettermann: German family-owned manufacturer of cable management, connection, and lightning/surge protection systems; the most direct head-to-head competitor to DEHN in European external lightning protection and SPD markets, with comparable channel and engineering-service model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@dehn1835
• LinkedInlinkedin.com/company/dehn-se-co-kg
• Facebookfacebook.com/DEHNde

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 DEHN SE Co.KG