POLYMA Energy Systems

What POLYMA Energy Systems does

POLYMA Energy Systems (POLYMA Energiesysteme GmbH) is a German manufacturer of mobile and stationary power generators headquartered in Kassel and operating since 1948. The company produces a full spectrum of diesel, hybrid (diesel/LiFePo battery/solar), and pure-battery generators ranging from 20 kVA compact units to 2,000 kVA industrial container systems, configured as 1-axle trailers, tandem trailers, 2-axle trailers, self-propelled units, roll-off containers, skid-mounted units, concrete stations, and building installations. Its proprietary control technologies include Automatische Stationsfreischaltung (ASF), 50Hz Plus frequency control, and Rückleistungsautomatik, which together protect generators from reverse feeding from PV installations and enable automatic grid parallel, island, and emergency-power operation. The company manufactures exclusively in Germany across three production facilities (Kassel industrial area, Kassel-Waldau service site opened 2024, and Werk 3 in Baunatal opened 2025).

POLYMA sells through a direct enterprise field-sales motion with a 7-step customization process, complemented by a branded rental fleet (Mietpark) of 20-800 kVA units, trade show presence at events such as eltefa and Interschutz, and a dense service network covering all of Germany from Kassel and Würzburg. Revenue is generated through five streams: custom hardware sales, recurring rental income, multi-year maintenance and service contracts, spare parts (including for competitor equipment), and retrofit modernization work. The customer base is concentrated in German public-sector verticals: grid operators and municipal utilities (Stadtwerke), civil protection and fire services (DRK, Feuerwehr, THW), water management (DHSV Dithmarschen), and security-relevant facilities such as data centers and hospitals, with additional exposure to film production and construction/events.

The company is privately held by the Freiherren Waitz von Eschen corporate group, which acquired it in 2005, and is managed by Dr. Friedrich von Waitz and Harald von Waitz. POLYMA holds TÜV Süd, VDE, BG ETEM, deENet, and DVS certifications, completed a full transition to Stage 5 emissions in 2021, and was recognized as an IHK-Ausbildungsbetrieb for 2024/2025. Its product roadmap has shifted notably toward hybrid and battery architectures since 2019, including the 2023 triple-hybrid system and the 2025 hybrid generator for grid operators, positioning it for the German energy transition market.

Name

POLYMA Energy Systems

Legal name

POLYMA Energiesysteme GmbH

Website

https://polyma.net

Company type

Private

Founded year

1948

Operating status

Operating

Headcount range

51–100 employees

Ownership category

akta.pro rank

Product category

Power Generation Equipment

NAICS

Motor and Generator Manufacturing (335312), Electric Power Generation (22111), Power, Distribution, and Specialty Transformer Manufacturing (335311)

SIC

Motors & Generators (3621), Switchgear & Switchboard Apparatus (3613), Engines & Turbines (3510)

akta.pro primary industry

Engine Generator & Microgrid Power Plant EPC (Diesel/Gas Recip) (EUAEAAAJ)

akta.pro secondary industries

Generator Installation & Transfer Switches (Standby/Portable Interlock) (HSAOADAF), Plant Electrical Systems Upgrades (Aux Power, MCCs, Cabling, Earthing) (EUAEALAJ), Medium/Low-Voltage Power Distribution (MCCs, Panels, UPS, Grounding) (EUAEAFAB)

Keywords

• Mobile power generators
• Stationary power generation
• Emergency power systems
• Civil protection equipment
• Hybrid generator systems

Headquarters

HQ city

Kassel

HQ country

Germany

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Power Generator Sales: POLYMA designs, manufactures, and sells custom mobile and stationary power generators including 1-axle, tandem-axle, 2-axle trailers, self-propelled units, roll-off containers, compact generators, container systems, concrete stations, and building installations. Sales are project-based with custom configuration for each customer order.
2. Rental Park (Mietpark): POLYMA operates a rental fleet ranging from 20 to 800 kVA for temporary power needs. The rental service includes delivery and pickup, operator instruction, emergency power automation connection, and accessories like distribution cabinets, cable sets, and load resistors. Rental models include named units like 'Gorilla' (400 kVA), 'Fuchs' (100 kVA), and 'Big Boss' (800 kVA).
3. Maintenance and Service: Comprehensive maintenance contracts covering mechanical and electrical work, inspections per DGUV V3 and VDE standards, functional tests, test runs with load resistors, retrofits, and modernization of emergency power concepts. Services provided on-site from service vehicles.
4. Spare Parts Supply: Replacement parts are shipped worldwide overnight from warehouse stock, supporting both POLYMA and other manufacturers' equipment.
5. Retrofit and Modernization: Conversion and upgrading of existing generators including new control cabinets, more powerful motors, and extensive maintenance to extend equipment life.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

POLYMA Energy Systems manufactures and sells custom mobile and stationary power generators ranging from 20 kVA to 2,000 kVA, including diesel, hybrid (diesel/battery), and pure battery power generation systems. The company also provides a comprehensive rental fleet, maintenance services, remote monitoring with GPS, powermanagement systems, retrofit and modernization, and worldwide spare parts supply. All products are designed, engineered, and manufactured in Germany.

Product overview

POLYMA Energy Systems is a German manufacturer specializing in mobile and stationary power generation solutions, operating since 1948. The product portfolio is organized into four main categories: Mobile Stromerzeuger (mobile generators including 1-axle, tandem-axle, 2-axle trailers, self-propelled units, roll-off containers, and battery/hybrid systems from 30 kVA to 700 kVA); Stationäre Stromerzeuger (stationary systems including container, concrete, skid-mounted, and building-installed configurations from 20 to 2000 kVA); Zivil- und Katastrophenschutz (civil protection products including compact units, large civil protection generators, 4-aggregate roll-off systems, and mobile units with storage); and Ergänzende Produkte (accessories including cable drums, connection cabinets, load resistors, and fuel tankers). The company also provides comprehensive services including rental fleet management, remote monitoring with GPS theft protection, powermanagement systems, maintenance, repair, and retrofit services. Their products serve diverse applications including disaster relief, film production, water management, energy utilities, and security-critical facilities.

Differentiator

Problem solved

Functional benefit

Brands

• POLYMA Fernüberwachung: Remote monitoring, GPS tracking, and theft protection system for generators
• POLYMA Service App
• POLYMA Mietpark

Products and services

• 1-Achser (1-Axle Mobile Generator)
• Tandem-Achs-Anhänger (Tandem-Axle Trailer)
• 2-Achs-Anhänger (2-Axle Trailer)
• Selbstfahrer (Self-Propelled Mobile Generator)
• Abrollcontainer (Roll-off Container)
• Mobile Batterie- und Hybrid-Aggregate (Mobile Battery and Hybrid Generators)
• Betonstationen (Concrete Stations)
• Container-Aggregate (Container Generators)
• Kufenanlagen (Skid-Mounted Systems)
• Gebäudeeinbau (Building Installation)
• Große KatSchutz Aggregate (Large Civil Protection Generators)
• 4-Aggregate-Abrollsysteme (4-Aggregate Roll-off Systems)
• Mobile Aggregate mit Stauraum (Mobile Generators with Storage)
• Tankwagen (Fuel Tankers)
• Lastwiderstände (Load Resistors)
• Lastwiderstände (Load Resistors)
• Mietpark (Rental Fleet)
• Wartung und Instandhaltung (Maintenance and Service)
• Reparatur (Repair)
• Retrofit
• POLYMA Fernüberwachung und Service App (Remote Monitoring and Service App)
• Powermanagement

Quantifiable outcome

• Noise reduction to 40-50 dB(A) with hybrid technology, enabling night operation in residential areas
• +4 more outcomes

Named customers7 records

Segments6 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Three partnerships are on record, tiered minor.

• JOVYAtlasminorGTM or Marketing Partner · 1 March 2025JOVYAtlas co-exhibits with POLYMA at trade shows like eltefa, presenting their DC charging station test equipment, UPS systems, and load resistors alongside POLYMA's generators.
• KSV Hessen KasselminorGTM or Marketing Partner · 1 July 2024POLYMA is sleeve partner (Gold partner) of KSV Hessen Kassel football club, a regional sports sponsorship providing brand visibility and community engagement as a Kassel-based company with 75+ year history.
• Maier Bros.minorStrategic or Co-development Partner · 1 February 2024Maier Bros. worked jointly with POLYMA at the VTFF Green Tech Day in Berlin to demonstrate the new Hybrid Generator - a super-quiet self-propelled unit with 130kVA maximum power (100kVA gas engine + 30kW battery) and 1.7 kWp solar support.

Scale indicators5 records

Recent moves9 records

Expansion highlights6 records

Broad incumbents

• Caterpillar (CAT): Caterpillar is a global manufacturer of diesel and gas generator sets, engines, and power systems through its Electric Power division. Comparable as the largest broad-line power generation incumbent, with both mobile and stationary product offerings serving utility, industrial, and emergency backup customers globally.
• Generac Holdings: Generac is a leading manufacturer of backup power generators, including residential, commercial, and industrial systems, with growing presence in battery energy storage. Comparable as a major power generation OEM focused on stationary backup and increasingly mobile/temporary power, competing in similar customer applications.
• Cummins Inc. Cummins manufactures diesel and natural gas generators, hybrid power solutions, and battery energy storage systems through its Power Generation segment. Comparable as a major global incumbent offering both mobile and stationary power generation across similar customer verticals including utilities, data centers, and emergency services.
• Rolls-Royce Power Systems (MTU): MTU/Rolls-Royce Power Systems manufactures diesel and gas gensets, containerized power systems, and hybrid solutions under the MTU and Bergen brands. Comparable as a major incumbent serving data centers, hospitals, utilities, and grid applications with stationary and mobile generator products.
• Kohler Power Systems: Kohler's Power Systems division manufactures commercial and industrial generators, transfer switches, and paralleling switchgear. Comparable as a stationary backup power OEM serving similar institutional customers (hospitals, data centers, water treatment, government facilities) with packaged power systems.

Direct peers

• Aggreko: Aggreko is a global leader in temporary power generation, specializing in rental of mobile generators, load banks, and temperature control equipment. Directly comparable to POLYMA's Mietpark (rental fleet) business model, serving construction, events, utilities, and disaster response customers with temporary power solutions.
• Wacker Neuson: Wacker Neuson manufactures mobile generators, light towers, and construction equipment including battery-powered and hybrid models. Comparable as a manufacturer of mobile power solutions serving construction, events, and rental customers, with overlapping trailer-mounted and containerized generator products.
• JCB Power Products: JCB manufactures mobile generators and light towers under its Power Products line, including the recently launched hydrogen-powered generator. Comparable as a manufacturer of mobile diesel generators for construction and rental markets, with overlapping product categories in trailer-mounted and containerized units.
• Atlas Copco: Atlas Copco's Power Technique division manufactures mobile generators, light towers, and portable compressors. Directly comparable as a manufacturer of mobile diesel and battery-powered generators with rental fleet offerings, serving construction, events, and emergency applications similar to POLYMA's mobile product lines.
• Denyo Co., Ltd. Denyo is a Japanese manufacturer of mobile engine generators, hybrid generators, and battery-powered generators for construction, events, and emergency applications. Directly comparable product portfolio with mobile/trailer generators, hybrid technology, and similar noise-reduction emphasis as POLYMA.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/polymaenergie
• LinkedInlinkedin.com/company/polyma-energiesysteme-gmbh

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 POLYMA Energy Systems