Ernst Elley GmbH & Co. KG

What Ernst Elley GmbH & Co. KG does

Ernst Elley GmbH & Co. KG is a German energy infrastructure manufacturer, now operating as a consolidated brand under GRÄPER Ahlhorn GmbH & Co. KG following the May 1, 2025 integration of Elley, Schürmann & Weber, and AKA. The group manufactures transformer stations, medium-voltage switchgear (air- and gas-insulated), compact stations up to 3,150 kVA, walkable supply stations, battery storage containers, and mobile transformer stations, with annual production capacity of approximately 4,500 stations of which 75% are fully electrically equipped and connection-ready.

The company serves enterprise customers in the Versorgungswirtschaft (utility sector), energy providers, and infrastructure operators across Germany, with international offices in Almere (Netherlands) and Žilina (Slovakia) and Europe-wide delivery capability. Service offerings span the full lifecycle: planning, manufacturing, electrical engineering, commissioning, inspection, maintenance, repair, disposal, and a 24-hour emergency hotline. An online configurator supports early-stage station planning and lead generation.

The go-to-market is direct enterprise field sales through ten regional locations that combine local delivery and technical expertise with custom engineering. Pricing is quote-based on multi-year contracts; revenue model is primarily hardware sales bundled with long-term service. Ownership is private (Mittelstand-style GmbH & Co. KG) with no disclosed venture or private equity backing and no funding rounds. The firm employs approximately 1,200 engineers and skilled workers across all locations.

Name

Ernst Elley GmbH & Co. KG

Legal name

GRÄPER Ahlhorn GmbH & Co. KG

Website

https://elley.de

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

GRÄPER (integrating Ernst Elley) is a German Mittelstand manufacturer of transformer stations, medium-voltage switchgear, and compact stations, serving utilities, energy providers, and infrastructure operators across Europe with custom-engineered hardware and full lifecycle services.

Ownership category

akta.pro rank

Product category

Transformer Stations and Electrical Infrastructure

NAICS

Switchgear and Switchboard Apparatus Manufacturing (335313), Power, Distribution, and Specialty Transformer Manufacturing (335311), Electrical Equipment Manufacturing (33531)

SIC

Electrical Industrial Apparatus (3620), Power, Distribution & Specialty Transformers (3612), Electrical Work (1731)

akta.pro primary industry

Circuit Breakers, Disconnectors, Earthing Switches & Switchgear Components (EUADACAH)

akta.pro secondary industries

High-Voltage Electrical Systems (Switchgear, Transformers, Protection & Control) (EUAEAFAA), Electrical Contracting (Commercial/Industrial) (IMAIABAC)

Keywords

• Transformer station manufacturing
• Medium voltage switchgear
• Compact substations
• Energy infrastructure services
• Electrical engineering solutions

Headquarters

HQ city

Ahlhorn

HQ country

Germany

HQ region

Europe

Offices8 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Energy Infrastructure Solutions: Comprehensive energy infrastructure solutions from planning through manufacturing, commissioning, and long-term service. Products include transformer stations, medium-voltage switchgear, compact stations, and custom solutions. Services include inspection, maintenance, repair, and disposal.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Ernst Elley GmbH & Co. KG, operating under the GRÄPER brand, manufactures transformer stations, compact stations, walkable supply stations, and medium-voltage switchgear (both air-insulated and gas-insulated) for utilities, energy providers, and infrastructure operators. The company provides end-to-end energy infrastructure solutions encompassing planning, manufacturing, electrical installation, commissioning, and long-term lifecycle services including inspection, maintenance, repair, and disposal, with approximately 1,200 engineers and skilled workers producing around 4,500 stations annually across 10 European locations.

Product overview

The source data provided is for GRÄPER (Gräper Ahlhorn GmbH & Co. KG) at https://www.graeper.de/, not for Ernst Elley GmbH & Co. KG. No product or service information specific to Ernst Elley GmbH & Co. KG is contained in the provided source data.

Differentiator

Problem solved

Functional benefit

Products and services

• Kompaktstationen (Compact Stations) Compact transformer stations up to 3,150 kVA with natural convection cooling, designed for renewable energy and e-mobility applications. Available in standard and custom configurations including the GKP S4 with green roof design.
• Begehbare Versorgungsstationen (Walkable Supply Stations) Walkable supply stations for various utility applications including electricity supply, gas and hydrogen supply, water supply, telecommunications/datacenter, and e-mobility.
• Mittelspannungsanlagen (Medium-Voltage Switchgear) Air-insulated and gas-insulated medium-voltage switchgear systems for energy distribution and grid infrastructure.
• Battery Storage Containers (Speichercontainer) Complete container conversion with battery storage systems for energy storage and grid stabilization applications.
• Mobile Transformer Stations Mobile transformer stations available for rental, providing temporary power supply for construction sites, emergencies, and backup power scenarios.
• Notstromversorgung (Emergency Power Supply) Professional emergency power supply systems for all application scenarios requiring backup power.
• Niederspannungsschaltanlagen und Steuerungstechnik (Low-Voltage Switchgear and Control Technology) Low-voltage switchgear and control technology systems for industrial and utility applications.
• Schaltschrankbau (Control Cabinet Construction) Custom control cabinet construction for industrial automation and energy distribution applications.
• Metallbau (Metal Construction) Metal construction services for transformer stations, supply stations, and custom industrial enclosures.
• Betriebsgebäude (Operating Buildings) Custom operating buildings for transformer foundations and technical building solutions for energy infrastructure.
• Trafostände (Transformer Substations) Transformer substations including new construction, conversion, and expansion of existing stations.
• Energieanlagen-Planung und Projektierung (Energy System Planning and Project Engineering) Customized energy project planning, project management, and consulting services for energy infrastructure projects including system project engineering.
• Inspection and Maintenance Services Comprehensive inspection and maintenance services for transformers, medium-voltage systems, cables, low-voltage distributions, commissioning, and fault diagnostics including protection testing.
• Instandsetzung und Entsorgung (Repair and Disposal) Dismantling of transformer stations including repair and disposal services for end-of-life energy infrastructure equipment.
• GBÜ-R2 Station Family New generation of compact transformer stations designed for diverse requirements across multiple utility applications, launched in June 2026.
• GBÜ-R3 Compact Station New high-performance compact station from GRÄPER with up to 3,150 kVA capacity, compact design with natural convection, specifically developed for renewable energies and e-mobility, launched in April 2026.
• Niederspannungsverteilung (Low-Voltage Distribution) Low-voltage distribution systems for commercial, industrial, and utility applications.
• Kabelverbindungen (Cable Connections) Cable connections and cable jointing services for medium and low-voltage power distribution systems.
• Dienstleistungen und Prüfung (Services and Testing) Electrical services and testing including inspection and certification of electrical installations.
• Automatisierung und Steuerung (Automation and Control) Automation and control systems for energy infrastructure, industrial facilities, and building management.

Quantifiable outcome

• 75% of stations produced are fully electrically equipped and ready for connection
• +2 more outcomes

Named customers3 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

Feature7 records

Partnerships

Three partnerships are on record, tiered core.

• Elley (as integrated brand)coreOthers · 1 May 2025Ernst Elley GmbH & Co. KG operates under the GRÄPER brand following integration on May 1, 2025. GRÄPER consolidates Elley, Schürmann & Weber, and AKA brands under one unified brand for holistic energy infrastructure solutions from planning through manufacturing, commissioning, and long-term service.
• Schürmann & Weber (as integrated brand)coreOthers · 1 May 2025Schürmann & Weber brand integrated under GRÄPER umbrella as of May 1, 2025
• AKA (as integrated brand)coreOthers · 1 May 2025AKA brand integrated under GRÄPER umbrella as of May 1, 2025

Scale indicators5 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• ABB Electrification: Global leader in electrification products including switchgear, transformers, and power distribution solutions. Overlaps with GRÄPER's medium-voltage switchgear and compact station offerings, with broader product range and global footprint.
• Siemens Energy: Global energy technology leader offering transformers, switchgear, and grid infrastructure across the full voltage range. Comparable to GRÄPER in the medium-voltage and transformer station space, but at much larger scale and broader portfolio.
• Hitachi Energy: Major supplier of transformers, switchgear, and grid automation solutions for utilities and industrial customers globally. Direct overlap with GRÄPER in medium-voltage substations and transformer stations, with stronger international presence.
• Schneider Electric: Multinational energy management and automation company with a significant presence in medium-voltage switchgear and distribution solutions. Comparable customer base (utilities, industrial) and similar applications in grid expansion and renewable integration.
• Eaton: Power management company with substantial electrical components and medium-voltage switchgear offerings. Competes with GRÄPER in utility and industrial power distribution applications, particularly in European markets.

Direct peers

• SGB-SMIT Group: Specialized transformer manufacturer focused on power and distribution transformers for utilities and industry. Closely comparable to GRÄPER's transformer station business in product type and customer base, with similar European Mittelstand character.
• Trench Group: Manufacturer of transformer components, instrument transformers, and coil products for power transmission and distribution. Direct overlap with GRÄPER's transformer station products serving utility customers across Europe.
• Pfiffner Group: Swiss-based manufacturer of transformers, instrument transformers, and high-voltage equipment for utilities and industry. Comparable to GRÄPER in transformer manufacturing and European utility customer base, with similar Mittelstand characteristics.

Regional players

• Wöhner GmbH & Co. KG: German manufacturer of low-voltage power distribution, switchgear, and busbar systems. Regional competitor in the German market serving similar industrial and utility customers, though focused on low-voltage rather than medium-voltage systems.

Others

• AREVA (now Framatome / New NP): Historic nuclear and electrical equipment manufacturer with grid connections. Adjacent relevance through grid infrastructure and utility customer relationships, though less direct in the medium-voltage compact station niche.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@grapergruppe7628/featured
• Facebookfacebook.com/61574866904732
• LinkedInlinkedin.com/company/ernst-elley-gmbh-&-co.-kg
• Instagraminstagram.com/graeper.de

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries3 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 Ernst Elley GmbH & Co. KG