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Collage of Rehlko energy solutions featuring backup power, battery storage, industrial power generation, engineering expertise, and resilient energy infrastructure.

Who we are

Our purpose: Creating an energy resilient world for a better future​.

Rehlko is a global leader in energy resilience, delivering the solutions critical to sustain and improve life. By putting control over where energy is sourced, and where it goes, into more hands– homeowners, hospital administrators, business leaders– our solutions give people the resilience they need to keep building a brighter future, together.
For more than 100 years, our teams have excelled, reliably meeting today’s energy needs while planning for tomorrow’s. And as we look to the future, our priorities are global priorities: the stability that comes from steady energy sources and reliable back-ups. The power to be able to harness energy, and the freedom of not being dependent on an aging centralized grid. The confidence that clean energy solutions offer when it comes to a sustainable world, and the commitment to keep innovating towards greater impact.
With a diverse portfolio of businesses—including Power Systems, Clarke Energy, Uninterruptible Power, Home Energy and Engines—Rehlko delivers the reliable energy solutions that communities and industries depend on. Together, these businesses empower people, support critical infrastructure, and help ensure energy is always within reach. By integrating innovation with purpose, we’re building a more dependable, sustainable energy future for everyone.

Powering progress since 1920

Rehlko's journey into the power industry began in the wake of World War I, driven by a bold vision and a spirit of innovation. Recognizing the growing need for electricity on farms, the company combined its mastery of cast iron with inventive thinking to introduce the groundbreaking Kohler Automatic Power & Light “power plant” in 1920. From energizing Admiral Byrd’s daring expedition to the South Pole, to lighting up Hollywood and supporting the monumental Hoover Dam, Rehlko has spent over a century pushing boundaries and powering progress.

Residential standby generator installed beside a home, delivering reliable backup power, energy resilience, and automatic protection during utility outages, severe weather, and unexpected power disruptions.

Our businesses

We deliver the energy resilience solutions that support and sustain life.

Rehlko Who We Are Tabs Row Industrial Card 1

Rehlko power generation systems installed at a commercial facility, providing reliable backup power, energy resilience, and critical infrastructure support for mission-critical operations.

Power systems

We're world leaders in engineering, installing, and maintaining critical energy solutions. We provide an unbeatable end-to-end experience and custom systems design to integrate with diverse systems.

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Clarke Energy distributed energy facility featuring advanced generation equipment, supporting efficient power production, energy reliability, and sustainable industrial operations.

Clarke Energy

As engineers, we provide dedicated teams globally to support customers through development and installation of distributed energy solutions, and best-in-class maintenance services.

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Rehlko uninterruptible power supply systems designed to deliver continuous, conditioned power for data centers, critical facilities, and mission-critical applications.

Uninterruptible power

We provide a conditioned, uninterruptible supply of energy to vital systems, ensuring power disturbances do not become data disturbances and if the mains supply fails, energy continues to flow.

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Our company values

Rehlko Who We Are Card Core Values

Employee reviewing documents in a modern office, representing curiosity, continuous learning, innovation, and problem-solving to address evolving energy challenges and support professional growth.

Curiosity

Curiosity can unlock opportunities to solve tomorrow’s energy challenges and to enable our own teams to grow.

Team members participating in a workplace event, highlighting trust, collaboration, employee engagement, and a shared commitment to achieving goals through teamwork and mutual support.

Trust

Trust enables us to be confident, to own our decisions, and to solve challenges together.

Service technician operating power equipment, representing focus, efficiency, operational excellence, and the ability to prioritize work that delivers reliable energy solutions for customers.

Pace

A laser focus on pace and priority helps us make informed choices about the work that matters most, and to identify the support we need to achieve it together.

Employee coordinating service activities in an industrial environment, showcasing technical expertise, customer support, operational excellence, and a commitment to delivering high-quality energy solutions.

Excellence

Whether we’re finding ways to partner with one another or delivering a solution for our customers, we always strive to find the win in our work.

Person overlooking a mountain landscape, representing energy resilience, long-term progress, sustainability, and the vision of building a more reliable future through resilient energy solutions and community impact.
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Creating an energy resilient world for a better future

Powering Impact™ guides our purpose of enabling resilience. We focus on the pillars of operational excellence, resilient products and services, and engaging communities.

Join the Rehlko team

Build what matters and shape the future of energy resilience.

Employees collaborating at a modern workplace reception area, highlighting career opportunities, teamwork, professional growth, workplace culture, and innovation in support of resilient energy solutions.