Gertek Gerätetechnik GmbH

What Gertek Gerätetechnik GmbH does

Gertek Gerätetechnik GmbH, founded in 2003 and headquartered in Nürnberg, Germany, is a custom-engineered power supply systems provider serving critical infrastructure operators in the DACH region and selected EU countries. The company is a wholly-owned subsidiary of CE+T Power (Belgium) since 2019 and integrated SAS-Jonatat GmbH at the end of 2023. Under Managing Director Max Warmuth, Gertek employs enterprise field sales and event-driven go-to-market targeting railway, telecommunications, industrial, energy, data center, and maritime customers through direct project engagement and partnerships with technology integrators.

Gertek's product portfolio centers on modular, scalable power conversion systems built on double-converter VFI-SS-111 technology with galvanic isolation, integrated electronic switching units (EUE) for 0ms transfer, and SiC semiconductors for high power density. Core product platforms include Prisma (multidirectional Power Conversion System, 250kW–1MW), SIERRA (hybrid converter for AC/DC loads with renewable integration), HERCULES/FLEXA/FIDUS (modular AC-UPS systems), BRAVO (modular inverters up to 2.7MVA), and a battery portfolio spanning lead-acid (Front Terminal, OPzV, OPzS, GroE) and Li-Ion LFP systems with BACS monitoring. Key certifications include Q1 supplier status from Deutsche Bahn (railway) and ISO 9001:2015.

Revenue is generated through capital equipment sales of custom-engineered UPS, DC power, inverter, and hybrid power systems, complemented by professional services including system integration, project planning, installation, and commissioning. Long-term recurring revenue comes from maintenance contracts (Wartungsverträge) with 24/7 availability, SLA-based service, remote diagnostics, and repair services. Pricing is not publicly disclosed; all solutions are individually engineered and quoted on a project basis. The company relocated to a new 2,600 m² headquarters in Nürnberg's PAOLO Business Park on June 29, 2026, concurrently running a service center in Schwarzenbruck for nationwide German support.

Name

Gertek Gerätetechnik GmbH

Legal name

Gertek Gerätetechnik GmbH

Website

https://gertek.com

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

1–10 employees

Short description

Gertek Gerätetechnik GmbH is a German custom-engineered power supply systems provider, serving critical infrastructure operators in DACH/EU across railway, telecom, industrial, and energy sectors. It is a wholly-owned subsidiary of CE+T Power (Belgium), specializing in modular UPS, DC power, hybrid converters, and battery systems.

Ownership category

akta.pro rank

Product category

Uninterruptible Power Supply (UPS) Systems

NAICS

Switchgear and Switchboard Apparatus Manufacturing (335313), Power, Distribution, and Specialty Transformer Manufacturing (335311)

SIC

Switchgear & Switchboard Apparatus (3613), Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Medium/Low-Voltage Power Distribution (MCCs, Panels, UPS, Grounding) (EUAEAFAB)

akta.pro secondary industries

FACTS / Reactive Power & Power Quality Systems EPC (SVC/STATCOM, Capacitor Banks) (EUAEABAE), Grid Interconnection & Collector Substation EPC (Utility-Scale Renewables) (EUAEABAK), Energy Systems & Power Engineering Consulting (BPAHAIAG), Power Quality, Metering & Monitoring (HDACAJAG), Engine Generator & Microgrid Power Plant EPC (Diesel/Gas Recip) (EUAEAAAJ)

Keywords

• Modular UPS systems
• Power conversion equipment
• Battery energy storage
• DC power supply
• Hybrid power systems

Headquarters

HQ city

Nürnberg

HQ country

Germany

HQ region

Europe

Offices2 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. Power System Hardware Sales: Sale of modular UPS systems, DC power supplies, inverters, hybrid converters, and battery systems as custom-engineered or standard product lines. Revenue from equipment delivery, configuration, and commissioning.
2. System Integration & Project Services: Custom system design, engineering, project planning, installation, and commissioning services for complex energy supply projects. Includes SAN Group-type integrated energy concepts combining solar, hydrogen fuel cells, and battery storage.
3. Maintenance & Service Contracts: Long-term maintenance contracts (Wartungsverträge) including 24/7 availability, remote diagnostics, spare parts management, SLA agreements, load and battery testing, thermography, and maintenance protocols with action recommendations.
4. UPS Repair Services: Repair services for UPS systems including fault analysis, in-house and manufacturer repairs, loan UPS units during repair period, and RMA-based documentation process.
5. Training Services: Customer training programs for planning, operation, and analysis of UPS systems, tailored to specific customer requirements and applications.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Gertek engineers, manufactures, and integrates modular, scalable uninterruptible power supply (UPS) systems, DC power supply systems, hybrid power converters, modular inverters, and battery energy storage systems for critical infrastructure operators. The portfolio is built on proprietary CE+T Power platforms including Prisma multidirectional converters, SIERRA hybrid converters, AC-UPS (HERCULES, FLEXA, FIDUS), BRAVO inverters, and Li-Ion/lead-acid battery technologies. Services span custom engineering, commissioning, maintenance contracts, repair, and training across the full project lifecycle.

Product overview

Gertek Gerätetechnik GmbH offers a modular, scalable portfolio of power supply solutions for critical infrastructure, industrial applications, and renewable energy integration. The product family centers on three core technology platforms: Prisma multidirectional converters (PCS for energy storage), SIERRA hybrid converters (for AC/DC loads with renewable integration), and DC-USV systems (rectifier-based power supply). Supporting these are AC-USV products (HERCULES, FLEXA, FIDUS series) using double-conversion technology for power protection, inverter solutions (BRAVO series, FWR 150) with 0ms switching capability, and comprehensive battery technologies including lead-acid (Front Terminal, OPzV, OPzS, GroE) and Li-Ion LFP systems. The portfolio is complemented by BACS battery monitoring for system availability, plus repair and maintenance services. All systems feature modular architecture enabling scalability and redundancy (N+X).

Differentiator

Problem solved

Functional benefit

Brands

• PRISMA: Multidirectional converter / Power Conversion System (PCS) — new generation of modular and scalable power conversion systems from CE+T Power, marketed by Gertek.
• HERCULES
• FLEXA
• FIDUS
• BRAVO

Products and services

• Prisma Power Conversion System

Quantifiable outcome

• DC-USV systems achieve up to 98% efficiency, reducing energy losses and cooling costs
• +5 more outcomes

Named customers4 records

Segments6 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

Nine partnerships are on record, tiered core and minor.

• DEHNcoreStrategic or Co-development Partner · 28 November 2025Joint webinar partnership for railway infrastructure power supply. Gertek's Danijel Levicki (Sales Director) presented on reliable, modular, and standards-compliant power supply systems for railway infrastructure. Topics included DC and AC supply, surge protection concepts, and intelligent distribution architectures. Focus on safety, efficiency, and future-readiness of joint solutions.
• Rittal GmbH & Co. KGcoreStrategic or Co-development Partner · 5 June 2025Close cooperation on enclosure technology for railway DWDM systems. Gertek provides complete planning and system integration of UPS systems for railway applications. Rittal supplies specialized outdoor enclosures (Toptec series, RailwayCube) protecting sensitive electronics from weather, extreme temperatures, and mechanical vibration at trackside. Focus on maximizing reliability under extreme conditions for digital railway infrastructure.
• EatoncoreTechnology or IntegrationRailway-certified rectifier solutions integrated into Gertek's power supply systems for railway infrastructure applications. Eatons certified rectifiers complement Gertek's modular DC-USV and power conversion systems for railway customers.
• SFC EnergycoreStrategic or Co-development PartnerJoint project with Gertek for the SAN Group climate-neutral business park in Austria. SFC Energy supplied EFOY Hydrogen fuel cells (5x EFOY Cabinets as 50kW system) integrated with CE+T Sierra multidirectional converter from Gertek for emergency power and hydrogen-based energy independence. Partnership combines fuel cell and power conversion expertise for integrated hybrid energy solutions.
• CE+T Power (Belgium)coreStrategic or Co-development PartnerGertek is a 100% subsidiary of CE+T Power headquartered in Liège, Belgium. Gertek serves as both developer and manufacturer of CE+T technologies including the SIERRA multidirectional converter platform and Prisma Power Conversion System. This provides access to the full CE+T technology portfolio and international support infrastructure.
• SAS-Jonatat GmbHcoreStrategic or Co-development PartnerSAS-Jonatat GmbH was integrated into Gertek Gerätetechnik GmbH at the end of 2023, strengthening the company's portfolio of reliable power supply solutions. The seamless integration extends Gertek's expertise while continuing to develop proven solutions.
• Wasserstoffbündnis Bayern (Hydrogen Alliance Bavaria / Zentrum Wasserstoff.Bayern)minorStrategic or Co-development PartnerOfficial partner of the Hydrogen Alliance Bavaria, a strategic platform coordinated by Zentrum Wasserstoff.Bayern (H2.B) that connects over 400 stakeholders from business, science, and politics. Partnership aims to advance green hydrogen applications, create market access, and develop innovative business models in Bavaria. Gertek contributes expertise in power supply for hydrogen production and integration.
• AVENTOS GroupminorOthersAVENTOS Group developed the PAOLO Business Park in Nürnberg where Gertek relocated its headquarters in June 2026. Gertek rented approximately 2,600 m² of commercial space for production, logistics, and administration.
• aptumminorImplementation/ SI/ Consulting PartnerReal estate consulting firm that supported Gertek's headquarters relocation search process and facilitated a smooth transition to the new PAOLO Business Park location in Nürnberg.

Scale indicators6 records

Recent moves8 records

Expansion highlights8 records

Broad incumbents

• ABB: Global power and automation group with strong positions in UPS, power conversion, and railway power supply. Overlaps with Gertek on industrial UPS, modular inverters, and rail-adjacent electrification.
• Vertiv: Critical digital infrastructure power specialist offering modular UPS, lithium battery systems, and DC power solutions (e.g., Liebert ITA2/NXC, NetSure). Directly comparable to Gertek in modular AC-UPS, DC-UPS, and BESS-adjacent product lines.
• Schneider Electric: Global UPS and power infrastructure leader (Galaxy, Easy UPS, APC). Competes across the full range of Gertek's offerings — AC-UPS, DC-UPS, hybrid power — with broader channel reach in enterprise and data center segments.
• Eaton: Global power management major with a strong modular UPS portfolio (e.g., 93PM, 9PX) used in railway, telecom, and data centers. Directly competes with Gertek's HERCULES/FLEXA in 20kW–640kW modular UPS tenders and is also a named Gertek partner for railway rectifiers.
• Hitachi Energy: Global supplier of railway power supply systems, substation solutions, and grid integration products. Comparable to Gertek's railway DWDM, interlocking, and signaling power applications at the higher system-integration level.
• Siemens Mobility: Major German rail signaling and infrastructure vendor (digital interlocking, ETCS, telecommunications). Competes indirectly with Gertek for railway power supply scope and is a counterparty on many of the same Deutsche Bahn programs.

Direct peers

• AEG Power Solutions: Germany-based UPS and power conversion specialist serving industrial, railway, and energy customers. Directly comparable modular UPS, rectifier, and DC-power portfolio with strong DACH railway footprint similar to Gertek's.
• CE+T Power: Belgian parent group and co-developer of SIERRA, Prisma, HERCULES, FLEXA, BRAVO, and FIDUS platforms. Operates in the same modular UPS, inverter, and bidirectional converter space and shares engineering, product, and customer footprint with Gertek across Europe.
• Socomec: French specialist in modular UPS, power conversion, and energy storage (MODULYS, SUNSYS, DIRIS). Closely aligned with Gertek in modular architecture philosophy, DACH/EU critical-infrastructure focus, and hybrid PV-plus-storage offerings.
• Riello UPS: Italian UPS manufacturer with a broad modular and transformer-less product line (Multi Sentry, NextEnergy, Sentryum). Closely aligned with Gertek in European mid-market modular UPS, transformer-based designs, and rail/industrial verticals.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/gertek-ger%C3%A4tetechnik-gmbh

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 record

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 Gertek Gerätetechnik GmbH