What DEHN + SÖHNE does

DEHN SE is a German, family-owned manufacturer founded in 1910, headquartered in Neumarkt, with a manufacturing site in Mühlhausen, and a workforce of 5,001-10,000. The company designs and produces lightning protection, surge protection, and electrical-safety equipment organized into three core lines: Red/Line for power-supply surge protection, Yellow/Line for IT and telecommunications surge protection, and DEHNcare for personal protective equipment including the ArcFit arc-fault clothing line and DEHNsense voltage detectors. Underlying technology centers on overvoltage protection devices, external lightning protection systems (including the proprietary HVI high-voltage-resistant insulated conductor), earthing solutions, and increasingly condition-monitoring hardware such as DEHNrecord.

DEHN serves B2B customers across seven primary verticals: buildings and infrastructure (residential, industrial, hospitals, data centres), the energy sector (battery storage, power grids, wind, solar, hydrogen), e-mobility (wallboxes, AC/DC and high-power charging stations), photovoltaics, railway technology, mobile communications, and process industry. The business model combines one-time hardware sales, professional engineering and testing services (DEHN Engineering Services, DEHN Test Centre), and a subscription-style software product (DEHNplan, a BIM-compatible planning tool). Go-to-market is a sales-led, inquiry-based motion: direct enterprise sales for large infrastructure projects, international subsidiaries and partners for cross-border distribution, an online shop in Germany, and an inside-sales technical support function. Pricing is not publicly disclosed and is quote-based by project.

The competitive position rests on more than a century of brand history, an extensive registered trademark portfolio, deep involvement in DIN EN/IEC electrical safety standards, and a captive education channel (DEHNacademy) that trains the installers and engineers who specify protection components. The group is held through HANS DEHN Holding SE + Co KG with operating, digital (DEHN digital solutions GmbH), IP, asset, and real estate subsidiaries; ownership remains with the Dehn family under Chairman Dr. Philipp Dehn, with no external investors, no M&A, and no IPO activity disclosed.

Name

DEHN + SÖHNE

Legal name

DEHN SE

Website

https://dehn-international.com

Company type

Private

Founded year

1910

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

DEHN SE is a family-owned German manufacturer, founded in 1910, of lightning protection, surge protection, and electrical-safety equipment serving B2B customers across buildings, energy, e-mobility, railways, telecommunications, and process industries worldwide.

Ownership category

akta.pro rank

Product category

Electrical Protection Equipment

NAICS

Electrical Equipment Manufacturing (33531), Current-Carrying Wiring Device Manufacturing (335931), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Wiring Device Manufacturing (33593)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600), Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Industrial Instruments For Measurement, Display, And Control (3823), Electric Lighting & Wiring Equipment (3640)

akta.pro primary industry

Grounding, Bonding & Lightning Protection (grounding bars, clamps, earthing systems, lightning arrestors) (IMAGAEAJ)

akta.pro secondary industries

Grounding, Bonding & Lightning Protection Conductors (IMADAMAM), Surge Protectors & Power Strips (SPD) (HDACAJAB), Power Quality, Metering & Monitoring (HDACAJAG), EMI/Shielding, Grounding & Surge Protection for Cabling Systems (HDAFALAL), Testing, Inspection, Maintenance & Compliance Services (NFPA/Local Code) (HSAHAFAG)

Keywords

• Lightning protection systems
• Surge protection devices
• Electrical safety equipment
• Overvoltage protection
• Earthing solutions

Headquarters

HQ city

Neumarkt

HQ country

Germany

HQ region

Europe

Offices2 records

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. Hardware Products: Sale of physical protection devices including surge arresters, lightning protection components, safety equipment, and related accessories. Products include DEHNguard, DEHNventil, BLITZDUCTOR, DEHNcube, HVI conductors, and safety equipment like arc-fault protection clothing and voltage detectors.
2. Engineering Services: Professional services including lightning protection planning, testing, inspection, analysis, and simulation services through DEHN Engineering Services and DEHN Test Centre.
3. DEHNplan Software: BIM-compatible software for planning external lightning protection. DEHNplan allows users to create protection concepts with practical features.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

DEHN manufactures and sells comprehensive protection solutions in lightning protection, surge protection, and electrical safety equipment — including modular surge arresters, external lightning protection systems, earthing solutions, arc-fault protective clothing, voltage alarms, and condition monitoring devices. Alongside its hardware portfolio, the company provides DEHNplan BIM-compatible planning software, DEHN Engineering Services for design and planning, and DEHN Test Centre inspection/simulation/testing services for standards-compliant protection concepts.

Product overview

DEHN is a manufacturer of lightning protection, surge protection, and safety equipment for electrical systems. The company operates three core product divisions: (1) Lightning Protection and Earthing — external lightning protection systems including HVI light plus conductors and telescopic air-termination rods; (2) Surge Protection — spanning Red/Line for power supply systems and Yellow/Line for IT/telecommunication systems, with products including DEHNguard, DEHNventil, DEHNcube, BLITZDUCTORconnect, DEHNrecord condition monitoring, and DEHNpatch; (3) Safety Equipment — DEHNcare ArcFit protective clothing, DEHNsense EFD voltage alarms, inspection cameras, and voltage detectors. The company also provides DEHNplan BIM-compatible planning software, DEHN Engineering Services for protection planning, DEHN Test Centre for testing services, and DEHNacademy for professional education.

Differentiator

Problem solved

Functional benefit

Brands

• RED/LINE: Surge protection for power supply systems
• YELLOW/LINE
• DEHNcare
• DEHNrecord
• DEHNplan
• DEHNacademy
• DEHN Engineering Services
• DEHN Test Centre
• BLITZDUCTOR
• DEHNguard
• DEHNventil
• HVI

Products and services

• Red/Line surge protection Surge protection product line for power supply systems, including Type 1, Type 2, and Type 3 arresters for TT and TN systems, used by electrical installers and operators of building, energy, and e-mobility infrastructure.
• Yellow/Line surge protection Surge protection product line for information technology and telecommunication systems, including Ethernet and data line protection, used to protect IT networks and telecom interfaces from overvoltage.
• DEHNguard M DC ACI 1250 FM Modular, pluggable Type 2 surge arrester for DC charging equipment up to 1,250 V with mechanical function and fault indication, used for high-power EV charging applications.
• DEHNventil M2 TT FM Modular combined arrester providing Type 1 + Type 2 + Type 3 protection in a single device for TT and TN-S systems (3+1 configuration).
• DEHNguard MP YPV 1200 FM Multipole surge arrester for PV systems, Type 2, with plug-in protection modules and Thermo Dynamic Control for low-voltage consumer systems.
• DEHNcube 2 YPV Generator junction box for PV systems up to 1,200 V DC, protecting three MPP inputs and one string each, used in rooftop and ground-mounted PV installations.
• DEHNcube EMOB 2 16 Type 2 + Type 3 junction box for e-mobility in protection class IP 65 for universal installation upstream of wallboxes, used to protect EV charging infrastructure from overvoltage.
• DEHNpatch Class EA Universal, space-saving combined arrester with RJ45 connection system for protection of Ethernet applications including high-data-rate Class EA networks.
• DEHNbox TC B 180 Lightning current arrester for protecting IT interfaces, featuring tool-free connection and an RJ45 plug at the outlet.
• BLITZDUCTORconnect Space-saving, modular combined arrester with push-in connection terminal and status indication for protecting one pair of unearthed balanced interfaces, with signal disconnection for maintenance purposes.
• DEHNrecord condition monitoring Condition monitoring system for arresters, including DIN-rail-mounted devices with integrated visual transmitter/receiver for use with BLITZDUCTORconnect and DEHNpatch arresters.
• HVI light plus Conductor High-voltage-resistant insulated down conductor designed to maintain separation distance to electrically conductive parts, with equivalent separation distance s ≤ 60 cm (in air) and s ≤ 120 cm (solid building material).
• DEHNsense EFD Portable voltage alarm providing visual, acoustic, and haptic warnings of electrical fields, operated via the DEHNwork app as an additional safety measure on top of the 5 safety rules.
• DEHNcare ArcFit protective clothing Arc-fault-tested protective clothing forming part of PPE sets (DEHNcare) for electricians working on outdoor electrical installations and other high-risk environments.
• DEHNplan planning software BIM-compatible software for standards-compliant planning of external lightning protection, used by electrical planners, engineers, and designers to create protection concepts.
• DEHN Engineering Services Expert planning of lightning and surge protection measures delivered as partial or complete services for enterprise projects requiring custom protection concepts.
• DEHN Test Centre In-house testing, inspection, analysis, and simulation services for lightning protection, surge protection, and electrical safety products and installations.
• DEHNacademy training Educational offerings including in-person seminars, online seminars, and e-learning modules for lightning and surge protection knowledge, including the DEHNplan Learning Journey educational format.

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Scale indicators2 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Weidmüller: German connectivity and electronics specialist with a dedicated surge protection product family (VARITECTOR) for industrial automation and process industry. Closely comparable to DEHN in industrial surge protection and earthing solutions, with strong overlap in rail and process verticals.
• nVent (ERICO): nVent's ERICO brand is a long-established specialist in lightning protection, earthing, and surge protection, with global reach. Direct competitor to DEHN in external lightning protection systems, particularly in industrial and infrastructure applications worldwide.
• Phoenix Contact: German specialist in connection technology, signal conditioning, and surge protection for industrial and automation applications. Directly overlaps with DEHN's BLITZDUCTORconnect and YELLOW/LINE product lines, particularly in industrial and process-industry verticals.
• OBO Bettermann: German family-owned manufacturer directly competing with DEHN in lightning protection, surge protection, cable support, and earthing systems. Headquartered in Germany with similar Mittelstand positioning, OBO is one of the closest head-to-head competitors in DEHN's home market.
• Hager Group: Family-owned German/French electrical solutions provider with surge protection devices and lightning protection solutions under its building systems portfolio. Comparable to DEHN in buildings and infrastructure protection, particularly across European markets.

Broad incumbents

• Siemens: Siemens Smart Infrastructure offers surge protection devices and lightning protection components as part of its broader electrical infrastructure portfolio. Directly competes with DEHN in building, data centre, and rail verticals, with greater scale and integrated solutions capability.
• Eaton: Eaton's electrical business includes a complete surge protection device (SPD) line and broader power quality offerings. Overlaps with DEHN's RED/LINE (power supply) and YELLOW/LINE (IT) protection categories, while also serving data centres and industrial customers globally.
• ABB: Global electrical equipment giant with a comprehensive surge and lightning protection portfolio under its Electrification business. Comparable to DEHN as a competitor in surge arresters, though ABB operates at much larger scale and broader scope, bundling protection with switchgear, UPS, and substation equipment.
• Schneider Electric: Schneider Electric offers surge protection within its Acti9 and broader energy management portfolio, targeting similar buildings, energy, and industrial customers. A major incumbent with global reach and bundling advantages that pressure specialist players like DEHN.

Emerging players

• Raycap: Specialist manufacturer of surge protection and connectivity solutions for telecom, renewable energy, and transportation applications. Overlaps with DEHN's e-mobility, mobile communications, and energy verticals, with particular strength in DC protection and high-power charging.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/c/DEHN-International
• Facebookfacebook.com/dehninternational
• LinkedInlinkedin.com/company/dehn-se-co-kg
• Instagraminstagram.com/DEHNde

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 DEHN + SÖHNE