ETK

What ETK does

ETK GmbH Anlagentechnik und Aggregatebau (operating as ETK Berlin) is a Berlin-based specialty engineering firm founded on July 17, 1995 that designs, manufactures, installs, commissions, and services emergency power generation systems and their subsystem components. The core product line centers on Notstromaggregate (emergency power generators) ranging from 15 kVA to 5,000 kVA, complemented by Schaltanlagen (switchgear with synchronization and parallel operation), Abgasanlagen (exhaust and chimney systems), Tankanlagen (single/double-walled fuel tanks for above- and underground installation), Kühlanlagen (cooling systems), and Rußfilter (soot particle filters with up to 99% separation rate and designs meeting 1 mg/m³). Products comply with DIN VDE 0107, DIN VDE 0108, DIN 6280, and ISO 8528; ETK holds WHG (Water Resources Act) approval for tank construction, and operates its own in-house workshop for custom-engineered solutions that go beyond standard catalog products. Quality assurance includes load testing and on-site simulation of operating conditions prior to handover.

Name

ETK

Legal name

ETK GmbH Anlagentechnik und Aggregatebau

Website

https://etk-berlin.de

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

1–10 employees

Short description

ETK GmbH designs, manufactures, installs, and services emergency power generators (15–5,000 kVA) and integrated subsystems for hospitals, government, defense, airports, and industrial clients across Berlin-Brandenburg.

Ownership category

akta.pro rank

Product category

Emergency Power Generation Equipment

NAICS

Turbine and Turbine Generator Set Units Manufacturing (333611), Engine, Turbine, and Power Transmission Equipment Manufacturing (3336), Electric Power Generation (22111)

SIC

Motors & Generators (3621), Electric Services (4911)

akta.pro primary industry

Emergency & Standby Diesel Generator Power (Critical Facilities) (EUACACAH)

akta.pro secondary industries

Emissions Controls & Environmental Retrofit Services (SCR/FGD/ESP, CEMS) (EUAEALAL), Electrical & Instrumentation (E&I) Maintenance for Energy Facilities (EUAEAGAJ), Distribution System Hardening & Resilience Upgrades (EUAEACAK), Backup Power & Critical Power Systems (Generators/UPS) (IMAIABAJ), Compliance, Safety & Code-Driven Retrofit Programs (NERC CIP, arc-flash, OSHA) (EUAEALAO)

Keywords

• Emergency power generators
• Switchgear systems
• Exhaust systems manufacturing
• Backup power maintenance
• Soot filter retrofits

Headquarters

HQ city

Berlin

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Emergency Power Generator Sales: Sale of complete emergency power systems and individual functional components including generators, switchgear, cooling systems, tanks, exhaust systems, and soot filters. Custom solutions manufactured in-house workshop alongside standard products.
2. Planning and Project Engineering: Complex planning and project engineering for power generation systems including space planning, drawing creation, emission calculations, immission calculations, utility coordination, and permit acquisition.
3. Installation and Commissioning: Installation and commissioning of complete emergency power systems including functional testing and required approvals, performed by company's own installation teams.
4. Maintenance and Service Contracts: Full maintenance contracts covering all components of customer installations with regular maintenance intervals, 24-hour emergency service, troubleshooting, and repair services for all equipment regardless of manufacturer.
5. One-time Inspection and Repair Services: Single inspection services and repair work on existing emergency power systems, generators, switchgear, and electronic components.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

ETK GmbH Anlagentechnik und Aggregatebau manufactures, installs, and maintains emergency power generators in the 15–5,000 kVA range along with related subsystems including switchgear, exhaust systems, fuel tanks, cooling systems, and soot particle filters. The company provides 24-hour emergency service and multi-brand repair and maintenance for diesel and gas generator systems, primarily serving critical-infrastructure customers across the Berlin-Brandenburg region of Germany. ETK also performs custom engineering, WHG-certified tank work, and emission-control retrofits to support regulatory compliance.

Product overview

ETK GmbH offers a comprehensive portfolio of emergency power generation products and related services. The core product line centers on Notstromaggregate (emergency power generators) ranging from 15 to 5,000 kVA, supported by complementary systems including Schaltanlagen (switchgear), Abgasanlagen (exhaust systems), Tankanlagen (fuel tank systems), Kühlanlagen (cooling systems), and Rußfilter (particle filters). These products can be supplied individually or as complete turnkey systems. The company also provides integrated services encompassing Planung (planning), Montage (installation), Wartungsverträge (maintenance contracts), and Reparaturen (repairs), enabling customers to receive complete solutions from a single provider.

Differentiator

Problem solved

Functional benefit

Products and services

• Emergency Power Generators (Notstromaggregate) Diesel and gas emergency power generators in the 15–5,000 kVA range, manufactured or sourced by ETK and supplied to critical-infrastructure, industrial, and commercial customers requiring backup or standby power.
• Switchgear Systems (Schaltanlagen) Low-voltage and medium-voltage switchgear systems designed, built, and commissioned by ETK to integrate and synchronize emergency generators with facility electrical infrastructure.
• Exhaust Systems (Abgasanlagen) Custom-engineered exhaust systems supplied and installed with ETK genset packages to manage engine emissions, heat, and noise in indoor and outdoor installations.
• Soot Particle Filters (Rußpartikelfilter) Soot particle filter systems designed, supplied, and retrofitted onto emergency generator installations to bring them into compliance with German emission regulations.
• WHG-certified Fuel Tank Systems Fuel storage tank systems designed, built, and installed to WHG (Wasserhaushaltsgesetz — German Water Resources Act) standards for emergency generator installations, ensuring regulatory compliance for water-resource protection.
• Cooling Systems Cooling subsystems (radiator-based and ancillary) supplied and integrated as part of ETK generator packages to support reliable operation in indoor and outdoor installations.
• Installation, Planning and Commissioning Services Project-based engineering, planning, installation, and commissioning services delivered alongside ETK equipment sales, covering the full genset plus switchgear, exhaust, fuel, and cooling subsystems.
• Maintenance and Repair Contracts Recurring multi-brand maintenance, inspection, and repair contracts covering diesel and gas generator installations, including non-ETK equipment across the customer's installed base.
• 24-Hour Emergency Service 24-hour on-call emergency response and repair service for generator breakdowns, providing rapid regional dispatch across the Berlin-Brandenburg service area.

Quantifiable outcome

• Soot filter separation rates up to 99%, meeting 5 mg/m³ limit with special designs down to 1 mg/m³
• +1 more outcomes

Named customers15 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• A. VAN KAICKminorStrategic or Co-development PartnerListed as a contractual partner (Vertragspartner). Nature of partnership appears to be historical or project-based collaboration. No specific details on partnership scope provided.

Scale indicators2 records

Recent moves9 records

Expansion highlights4 records

Broad incumbents

• FG Wilson (Caterpillar): Caterpillar-owned brand manufacturing diesel generator sets from small to multi-megawatt ratings for standby and prime power; direct product overlap with ETK's Notstromaggregate range.
• Generac Power Systems: Large manufacturer of backup generators and power systems for residential, commercial, and industrial customers; overlaps with ETK on standby diesel generators for critical facilities.
• Caterpillar (Electric Power): Global OEM of diesel and gas generator sets (FG Wilson, Cat branded) with full lifecycle services for critical facilities; comparable product/standards overlap to ETK but at much larger scale.
• Atlas Copco Power Solutions: Supplies diesel and electric generator sets plus power solutions for industrial and critical applications; comparable to ETK in product range, though broader portfolio and global footprint.
• MTU Rolls-Royce Power Systems (Rolls-Royce Solutions): Major German-headquartered manufacturer of diesel generator systems (MTU brand) and complete backup power solutions for critical facilities; broader OEM whose products ETK integrates and services.

Direct peers

• Aggreko: Provider of temporary and permanent power solutions including diesel generators and switchgear for events, utilities, and industrial customers; comparable to ETK in emergency-power installation and service model.
• Energyst (CAT Rental Power): Rental and sale of temporary and permanent power solutions including generator sets for industrial and critical-facility customers; comparable to ETK in service/integrator model for backup power.
• Himoinsa: Manufacturer and integrator of diesel and gas generator sets with control switchgear for industrial, telecom, and standby applications; comparable product line to ETK.
• Aksa Power Generation: Global manufacturer of diesel and gas generator sets with a broad kVA range covering standby/prime power for critical facilities; directly comparable to ETK in product scope, though larger and internationally distributed.

Regional players

• MDE Dezentrale Energiesysteme GmbH: Germany-based specialist in decentralized/backup power generation systems including diesel gensets, switchgear, and tank systems; most directly comparable in scale, scope, and German-market focus to ETK.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/etk-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 ETK