What DEIF does

DEIF A/S is a privately held, family-owned Danish industrial company founded in 1933 in Copenhagen and now headquartered in Skive, Denmark. The company develops intelligent energy management and power control systems, including genset and paralleling controllers, programmable automation controllers (PLCs), protection relays, power converters (iE Convert), HMI panels, and marine bridge instrumentation. Its technology platform centers on the proprietary iE controller family, the modular Multi-line 300 hardware architecture, and the PICUS configuration software with CustomLogic drag-and-drop ladder logic customization. DEIF's iE 250 Marine and iE 350 Marine controllers are the first in the maritime industry to obtain IACS UR E27 cybersecurity certification, positioning the company at the intersection of regulatory compliance and mission-critical shipboard energy control.

DEIF generates revenue primarily through hardware product sales of controllers, PLCs, protection relays, power converters, HMI panels, and instruments, complemented by software tools (with complimentary updates for registered users), professional services, repair/RMA, and DEIF Academy training programs delivered in Denmark and the USA. The go-to-market combines direct enterprise field sales with technical consultation, channel partners and distributors (Jiangsu Ferly in China, LEES Power in Australasia), and long-tenured system integrator relationships (Alewijnse since 2000). The company serves five primary verticals: land power generation (genset OEMs, rental, hybrid/microgrid, BESS manufacturers), marine & offshore (commercial vessels, ferries, offshore platforms), wind power (turbine retrofits), critical infrastructure (data centers, hospitals, telecom), and switchboard builders/system integrators.

DEIF operates globally through wholly-owned subsidiaries and offices across EMEA, Asia Pacific (13 markets via Singapore), the Americas, and Australasia, reaching customers in 90+ countries. The company has reported four consecutive years of revenue growth, reaching 766 million DKK in FY2024 (7% year-over-year). It is led by CEO Christian Nielsen with Toke Foss as Chairman and owner, and recently added Humphrey Lau to the board in April 2024. DEIF holds SBTi-validated science-based emissions reduction targets aligned with a 2050 net-zero objective and won the EY Entrepreneur of the Year 2023 in the ESG/Sustainability category.

Name

DEIF

Legal name

DEIF A/S

Website

https://deif.de

Company type

Private

Founded year

1933

Operating status

Operating

Short description

DEIF is a family-owned Danish industrial company that develops intelligent energy control systems, controllers, PLCs, and power converters for land power generation, marine & offshore, wind, and critical infrastructure customers across 90+ countries.

Ownership category

akta.pro rank

Product category

Industrial Power Control Systems

NAICS

Relay and Industrial Control Manufacturing (335314), Electrical Equipment Manufacturing (33531), Electrical Equipment, Appliance, and Component Manufacturing (335), Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600), Electrical Industrial Apparatus (3620), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Power Plant I&C / SCADA / DCS EPC (EUAEAAAN)

akta.pro secondary industries

Wind Power Plant EPC (Onshore/Offshore) (EUAEAAAF), Marine Power Generation & Energy Storage (Generators, Batteries, UPS) (IMAJAJAB), Shipboard Propulsion, Power Generation & Energy Storage (IMABAKAF), Shore Power & Electrification Systems (Cold Ironing, Charging Interfaces) (IMAJAJAM), Electrical Engineering & Power Distribution (Generation, Switchboards, Cabling, Lighting) (IMAJAGAF)

Keywords

• Power generation control
• Marine energy management
• Industrial automation controllers
• PLC and PAC systems
• Marine bridge instrumentation

Headquarters

HQ city

Bensheim

HQ country

Germany

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Product Sales: DEIF generates primary revenue from selling electronic devices and control systems including controllers (AGC, SGC series), PLCs, protection relays, power converters (iE Convert), HMI panels, instruments, and switchboard accessories. Products are sold directly and through channel partners globally.
2. Software Licenses and Updates: DEIF provides complimentary unrestricted access to software updates for registered users. Additional software tools and utilities are available for download. CODESYS add-ons and custom application development tools are offered.
3. Services and Training: DEIF generates revenue from onsite and consultancy services, premium remote and cloud services, repair/RMA services, and DEIF Academy training programs. Training is offered at academies in Denmark and USA with both standard and customized learning content.

Go-to-market motion3 records

Distribution channels4 records

Marketing channels8 records

Core offering

DEIF develops, manufactures, and sells intelligent energy control systems and instruments for power generation, marine & offshore, and wind power applications. The proprietary product portfolio includes genset and marine controllers (AGC/SGC series and iE 150/250/350 Marine), programmable automation controllers (iE 250 PLC and iE 350 PLC), protection relays, power converters (DEIF iE Convert), HMI panels (AGI 400), marine bridge instrumentation, remote monitoring systems, and supporting PICUS configuration software.

Product overview

DEIF offers a comprehensive portfolio of intelligent energy control products and services designed for power generation, marine, and industrial applications. The product line centers on advanced controllers (including the iE Marine series with iE 150/250/350 Marine variants, AGC and SGC series) and Programmable Automation Controllers (PLC/PAC) such as the iE 250 PLC and iE 350 PLC. These controllers integrate with add-on modules (Multi-line 300 modules, CIO 308 I/O), HMI panels (AGI 400), and marine instrumentation (WSS wind sensors, XDi displays). Configuration is enabled through PICUS software with CustomLogic drag-and-drop logic customization. DEIF also provides power converters, protection relays, instruments, and remote monitoring systems. The company complements its product portfolio with DEIF Academy training services and technical support.

Differentiator

Problem solved

Functional benefit

Brands

• World of DEIF: Interactive virtual experience platform showcasing DEIF products and company culture
• DEIF Academy

Products and services

• Controllers (AGC and SGC series) Core control devices including engine controllers, single genset controllers, and advanced paralleling and power management controllers for power generation and marine applications.
• iE 250 Marine Controller Versatile and cybersecure intelligent energy controller for maritime applications with IACS UR E27 certified cybersecurity, modular flexibility, and powerful processing for coastal and commercial vessels.
• iE 350 Marine Controller Highly flexible and cybersecure intelligent energy controller for advanced maritime applications with modular architecture, IACS UR E27 certified cybersecurity, and 7-inch colour touch display.
• iE 350 PLC Controller Programmable automation PLC controller with built-in 3-phase measurement, modular I/O, native EtherCAT fieldbus, open Linux software platform, IEC 61131-3 programming, and 10-year design lifetime. Functional from -40°C with superior vibration resistance.
• iE 250 PLC Controller Versatile and modular intelligent energy PLC controller combining PLC control, power management, and system integration capabilities.
• Protection Relays Protection devices for safeguarding electrical systems and equipment in power generation applications.
• DEIF iE Convert Power Converters Power converters for power conversion solutions in energy management applications.
• AGI 400 HMI Control Panel Advanced graphical interface available in 7, 10, 15, and 21-inch sizes with true glass front, capacitive multi-touch display, 3 Ethernet ports with integrated switch, OPC UA Server and Client, CODESYS V3 optional, and marine certifications.
• WSS 750 Wind Sensor Ultrasonic wind measuring device with all stainless steel construction, high power ultrasonic transducers, no moving parts, wind speed up to 65 m/s, IP66 and IP67 waterproof rating, DNV GL approved for dynamic positioning systems.
• Instruments and Switchboard Accessories Instruments and switchboard accessories for power management and monitoring applications in switchboard installations.
• Remote Monitoring Systems Remote monitoring systems for overseeing and managing power systems from distant locations.
• CIO 308 CAN Bus-based I/O Module CAN bus-based I/O module with 8 multi-functional inputs, wire break detection, CAN bus interface, LED indication, and 12/24 V DC supply.
• PICUS Configuration Software Configuration software for DEIF controllers enabling creation and maintenance of application single-line diagrams, supervision of data and information, alarm handling, system emulation, and dashboard designer.
• DEIF Academy Training Services Training services offering product training and hands-on energy management courses at facilities in Denmark and USA, with e-learning and customized content for customers and partners.

Quantifiable outcome

• Controller retrofit increased power productivity by 2%
• +2 more outcomes

Named customers7 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Four partnerships are on record, tiered core and regional.

• LEES PowercoreChannel Partner/ Reseller/ Distributor · 12 August 2025Formalized strategic partnership for Australasia region covering Australia and New Zealand markets. LEES Power serves as authorized distributor and partner for DEIF products in the region.
• AVLcoreStrategic or Co-development Partner · 2 April 2024Long-term strategic partnership to accelerate the green transition on land and at sea. Combines AVL's cutting-edge semiconductor technology with DEIF's manufacturing and application expertise to develop revolutionary power converters for net-zero shipping and power generation applications.
• Jiangsu Ferly Power Technology Co., Ltd.regionalChannel Partner/ Reseller/ DistributorDEIF dealer in China based in Taizhou. Relocated to new facility in June 2026 marking an important milestone in the partnership. Provides local sales and support for DEIF products in China.
• AlewijnsecoreImplementation/ SI/ Consulting PartnerDutch system integrator and trusted partner since 2000. Alewijnse integrates DEIF PPM 300 and PPU 300 controllers into electrification and automation solutions for marine and industrial sectors. Partnership valued for fast response, customization capabilities, and delivery performance.

Scale indicators4 records

Recent moves11 records

Expansion highlights6 records

Direct peers

• ComAp: ComAp is the closest direct competitor to DEIF, manufacturing genset controllers, marine controllers and power management products with similar controller-and-PLC architectures serving genset OEMs, marine integrators and rental fleets. The two compete head-to-head in mid-market land-power and marine power management.
• Woodward: Woodward is a US-based niche specialist in power control and energy management solutions for engines, turbines, industrial equipment and renewables — a direct comparable to DEIF in genset control, turbine governing and power conversion, with similar mid-market industrial customer profile.
• Beckhoff Automation: Beckhoff Automation is a German specialist in PC-based control, PLCs (TwinCAT), EtherCAT I/O and industrial automation — a direct peer to DEIF's PLC/PAC iE 250/350 controllers on automation architecture, EtherCAT fieldbus support and IEC 61131-3 programming, with deeper market reach in machine-building OEMs.

Broad incumbents

• ABB: ABB is a global industrial-automation and power-management incumbent offering controllers, protection relays, drives and marine digital solutions through its Motion and Process Automation businesses. It overlaps with DEIF across genset control, protection relays and marine power-electronics, with much greater R&D, geographic reach and integrated system scope.
• Siemens: Siemens provides industrial automation, power generation control and marine electrical systems via its Digital Industries and Smart Infrastructure divisions. It is a broad incumbent competing with DEIF in genset and power-plant control, SCADA-style energy management and increasingly in marine electrification portfolios.
• Schneider Electric: Schneider Electric operates a large power-management and industrial-automation business spanning controllers, relays, HMI and energy monitoring — overlapping with DEIF's genset, hybrid/microgrid, BESS and critical-infrastructure use cases. It is a broad incumbent with deeper software/services monetization than DEIF currently fields.
• Wärtsilä: Wärtsilä is a major marine and energy systems integrator building engines, hybrid propulsion, energy storage systems and vessel integration services. It is a broad incumbent that competes for the same marine and land power-generation spend that DEIF's controllers and iE Convert converters ride on.
• Kongsberg Maritime: Kongsberg Maritime supplies vessel automation, electrical and hybrid propulsion systems for commercial marine and offshore, directly overlapping DEIF's marine energy management, hybrid propulsion and IACS UR E27 cybersecurity positioning. It is a broader systems player with integrated delivery beyond standalone controllers.
• MTU / Rolls-Royce Power Systems: MTU Solutions (Rolls-Royce Power Systems) supplies engines, propulsion and integrated power systems for marine, data centers and power generation — a broad incumbent whose genset and marine solutions integrate competing energy management control layers to DEIF's controllers and converters.
• Wabtec (GE Transportation / Marine): Wabtec, with marine and industrial automation heritage (including GE's industrial control and marine portfolios), is a broad incumbent in marine electrification, control systems and energy management for vessels and rail — comparable to DEIF on marine power, drives and control systems integration at larger scale.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/deifgroup
• LinkedInlinkedin.com/company/deifgroup

Compliance4 records

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 DEIF