
About Us
A strong team thrives on innovation and ideas.
Every single day.
Klotter is a company of the E.GRUPPE, which emerged in 2021 after the financial investor Gimv acquired a stake in Klotter Elektrotechnik GmbH.
The E.GRUPPE is a dynamically growing group of companies specializing in sophisticated and future-oriented electrical engineering.
The group offers diverse growth and development opportunities for the future.
Founded in 1997 by Werner Klotter and Roswitha Wiegert-Klotter, the company, which enjoys an excellent reputation in its industry, currently employs around 80 people. Almost 25 years after its founding, the founders handed over the management.
Klotter Elektrotechnik offers holistic solutions with integrated service and maintenance offerings in the areas of transformer station construction, industrial automation, distribution board construction and building technology.
The company has a particular focus on planning and execution in the electrical sector, maintaining high quality standards in terms of technical expertise and timely completion. Its clients include companies from a wide range of industries with whom it has long-standing business relationships.
The electrical engineering industry is expected to experience strong growth in the future, driven by energy transition technologies, increasing electrification and digitalization, and the modernization of production facilities to meet climate targets.
Through the partnership with Gimv, Klotter has a renowned and experienced partner for the further development of the medium-sized company, with whom further significant growth with existing and new customers and a corresponding increase in staff is being pursued.
A team of highly qualified employees, who have accumulated sound know-how and a wealth of diverse experience over many years, looks forward to the future with exciting customer projects.
Skills
Trafostationen –
Individuelle Planung und Umsetzung

Our in-house team of project engineers plans the construction and renovation of transformer substations. Using specialized software, we can perform cross-brand selectivity calculations for various switchgear brands for our clients. We also conduct pressure resistance calculations according to Pigler. A precise heat demand calculation determines the subsequent ventilation of the substation.
For industry, hospitals, data centers, photovoltaic systems, and large construction sites, we design and build not only standard transformer substations but also complex transformer substations tailored to customer requirements. We always have clever and economical solutions for our customers.
We don't look for problems, we solve them! Many of our custom solutions have amazed our customers. We bring expertise and experience to transformer substation construction, whether in a finished concrete building, in an existing building, as an industrial substation with sheet metal enclosure, or on large construction sites.



Switchgear and distribution systems –
Construction of standard-compliant and tested switchgear

In implementing our solutions, we work with components from renowned manufacturers such as:
ABB / Striebel & John
Eaton
Hager
Rittal
Schneider Electric
Sedotec
Siemens
Every project is unique.
Our strength lies in the meticulous planning and design of customized control cabinets and distribution systems, regardless of whether parts of existing systems are to be modified or integrated, or entirely new systems are to be built. We prioritize reliability and personal safety.
Planning is carried out using state-of-the-art software such as EPlan P8. All distribution boards and control cabinets are built in the company's own workshop, tested according to current DIN EN standards before delivery, documented and receive a manufacturer's declaration.
Our specialists offer reliable solutions in the following areas:
Switchgear with a rated current up to 5000A
Switch and control cabinets for machines
Construction and wiring of building installation distribution boards
Control technology and automation –
Optimization of production facilities

Automation means optimizing production. In the increasingly intelligent factory, machines support and relieve the burden on people. Automation also means higher quality and greater safety for employees. Klotter develops future-proof and customized concepts with extensive expertise – even when things get tricky. From simple safety controls and PLC controls to process control systems, we create expert solutions.
From pharmaceuticals and the automotive industry to the paper industry, sawmills, gravel pits, hydroelectric power plants, and aircraft manufacturing, we increase the level of automation. We work across industries. We are also competent partners for drive technology with direct current, alternating current, and servo motors, handling planning, manufacturing, implementation, programming, and assembly.
Building technology – Electrical power supply
in industrial and commercial construction

With our building technology division, we have increasingly established ourselves in the market. We are a general contractor for complete electrical power supply in industrial and commercial buildings. From lighting and cabling to network technology, transformer stations, and distribution boards, we provide comprehensive services. As our customer, you receive everything from a single source. The project development and implementation of the entire electrical engineering system is carried out in close collaboration with the architect and construction management team.



Service and maintenance –
Fast and efficient

Our breakdown service for industry, commerce, trade, and shipbuilding is available 24/7, 365 days a year. Our specialists arrive quickly on-site, analyze the problem, and resolve it.
DGUV V3 measurements and tests: Every company is obligated to subject electrical equipment to recurring inspections. We test everything from drills to coffee machines.
Live Working: Our specialists clean transformer stations and switchgear while live. Cleaning and maintenance are also carried out with the equipment switched off, including an inspection report for the customer.
TEAM
Enthusiasm, knowledge and courage
award experts.
Electricity. Energy. Innovation.
Klotter is excellent.

Craft business owner of the year

Nomination for the Grand Prize for Medium-Sized Businesses

Best Employer of the Year in German SMEs

Entrepreneur of the Year

Best training company in the Kehl district
contact
Electricity. Energy. Innovation.
Economical solutions for our customers. Innovation in daily use.
Address:
Im Salmenkopf 6
77866 Rheinau-Freistett
Contact:
Fax +49 7844 9939-59

Together we are strong. You've come to the right place!
In our view, a group of established companies will achieve disproportionate growth and success in the currently highly fragmented electrical engineering market. The group's companies will benefit disproportionately from joint activities and synergies – together, we can better overcome challenges such as recruitment, digitalization, and increasing complexity. Furthermore, we can consolidate purchasing and commercial activities, share best practices, and improve together. For this reason, we are building a strong, agile, entrepreneurial network with leading companies in German-speaking countries.
We want to cover all trades in electrical engineering, such as telecommunications construction, energy technology and distribution, building technology, network and data technology, security technology, control technology, automation.
The group of companies is consolidated under the E.GROUP name in each country.
Are you looking for a succession solution or are you an ambitious entrepreneur?
For this joint project, we are specifically seeking other established companies in the electrical engineering sector whose owners (if desired) and management, together with us—an entrepreneurial and financially strong partner—want to lay the foundation for the next growth phase of their company. Together, we aim to further expand your company's significant market position in this strategically attractive market.
















