Company

We have the experience, you have the peace of mind.

Over 70 years of experience combined with the highest reliability. Passion paired with deep expertise: at CAS, we are your trusted partner for sourcing electronic components and IT hardware.

Our mission is to optimize our customers’ procurement and support them in their journey toward growth. Always a partnership on equal footing, we focus on tailored solutions that go far beyond basic sourcing. With an emphasis on customer satisfaction, flexibility, and innovation, we aim to become the most customer-focused distributor in Europe.

Managing Director:
Martina Zillner
Managing Director:
Dominik Zillner
Managing Director:
Thomas Zillner

Our History: Tradition and Future

The story of Components at Service GmbH (CAS) begins with a vision dating back to the early days of modern electronics. It all started in 1949 when Wilhelm Zillner, a pioneer in the post-war electronics industry, founded Zillner Elektronik GmbH. Wilhelm was not only a trailblazer in the emerging industry but also a co-founder of the renowned electronica trade fair, which remains a central platform for electronics innovation today. His company quickly grew into a leading distributor for passive and electromechanical components in germany.

In 1997, Thomas Zillner took over the leadership of Zillner Elektronik. However, as demand for components grew, customer requests also increased that could not be met due to strict contractual limitations. Customers sought more flexibility, variety, and a holistic approach to their project needs.

 

Our History: Tradition and Future

The story of Components at Service GmbH (CAS) begins with a vision dating back to the early days of modern electronics. It all started in 1949 when Wilhelm Zillner, a pioneer in the post-war electronics industry, founded Zillner Elektronik GmbH. Wilhelm was not only a trailblazer in the emerging industry but also a co-founder of the renowned electronica trade fair, which remains a central platform for electronics innovation today. His company quickly grew into a leading distributor for passive and electromechanical components in germany.

In 1997, Thomas Zillner took over the leadership of Zillner Elektronik. However, as demand for components grew, customer requests also increased that could not be met due to strict contractual limitations. Customers sought more flexibility, variety, and a holistic approach to their project needs.

 

These challenges sparked a pivotal idea: in 2000, Martina Zillner founded Components at Service GmbH (CAS). As an independent distributor of electronic components, CAS could now flexibly meet customer needs, providing exactly the parts they required—free from the constraints of Zillner Elektronik’s existing contracts.

The founding of CAS was more than a response to market demand; it was a fusion of two worlds: the extensive experience and reliability of Zillner Elektronik with the agility and independence of a new company. Since then, CAS has grown into an essential partner, consistently supplying customers worldwide with the components needed for their projects, always with a forward-looking vision and commitment to long-term success. Today, CAS stands for service, flexibility, and customer proximity, with the Zillner family’s DNA present in every component and customer relationship.

Vision & Mission

Our mission is to elevate our customers’ procurement processes to the next level and serve as an indispensable, long-term partner for electronic components. We place the highest value on customer satisfaction, offering customized solutions that go beyond mere component sourcing. Our goal is to become the most customer-centric distributor in Europe by combining reliability, flexibility, and innovative strength.

Vision & Mission

Our mission is to elevate our customers’ procurement processes to the next level and serve as an indispensable, long-term partner for electronic components. We place the highest value on customer satisfaction, offering customized solutions that go beyond mere component sourcing. Our goal is to become the most customer-centric distributor in Europe by combining reliability, flexibility, and innovative strength.

Our DNA

As a family business, our values are deeply embedded in our DNA: family, commitment, reliability, and sustainability shape our actions. Although we have been established in the market for decades, we maintain the flexible and innovative spirit of a startup. This dynamic enables us to adapt continuously to the ever-changing demands of the market, elevating our customers’ procurement to a whole new level.

We are business consultants, problem-solvers, quality controllers, logistics managers, and buyers who can quickly adjust to any market situation.

Components Key facts:

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Headquarters: Oberhaching (near Munich), Germany

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Additional Location: Busto Arsizio, Italy

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Expertise: Independent, internationally active trading company for electronic components and IT hardware

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Number of Employees: 30

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Ownership Structure: 100% privately owned

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Financial Strength: High equity ratio, well-positioned for handling large volumes

As a family business, we value community-oriented values and a culture rooted in those principles.

The five values of family, commitment, reliability, independence, and sustainability form the DNA of our daily actions and are reflected in our work and company policy.

We practice open communication and remain grounded in our roots. As a family business, respect and appreciation are paramount—whether for employees, customers, suppliers, or partners.

As a family business, we value community-oriented values and a culture rooted in those principles.

The five values of family, commitment, reliability, independence, and sustainability form the DNA of our daily actions and are reflected in our work and company policy.

We practice open communication and remain grounded in our roots. As a family business, respect and appreciation are paramount—whether for employees, customers, suppliers, or partners.

Our values: We stand for family, commitment, reliability, independence and sustainability

Family

As a family business, this is where our roots lie.

Each of our employees, customers, suppliers and partners is respected and treated with utmost respect and appreciation. Open communication is consciously practised through our internal action processes.

Engagement

We are intrinsically motivated to engage with all issues and concerns. Each task we confront represents a new challenge.

Our company name is what we’re all about – because Components at Service GmbH stands for exceptional service.

Reliability

We promise stable prices, reliable deliveries and quality products.

To make these promises come true, we audit our suppliers annually and cooperate with certified external test laboratories.

Independence

As an independent distributor, we have unrestricted market access and are free to act as needed.

Lean corporate processes and flat hierarchies enable us to respond to and fulfil individual customer requirements quickly.

Sustainability

We consider it our mission to operate in the interest of the common good, which is why CAS acts ethically, steadfastly and responsibly in all of its processes and decision-making.

We focus our attention on the ecological, regional and social development of our environment and our surroundings.

Our management team

Martina Zillner
Managing Director & Owner

Thomas Zillner
Managing Director & Owner

Dominik Zillner
Managing Director & Owner

Max Münch
Authorized Signatory, Head of Finance
& HR

References

Today, CAS has become the trusted partner for Europe’s key industries for reliable supply of forward-looking components. Our strength is particularly evident in the automotive industry, where over 120 companies rely on our expertise. Additionally, customers in sensitive fields such as medical technology, energy, and security technology benefit from our know-how. In 2024, components supplied by us even reached space with the Ariane 6. What connects all these projects? The highest quality, reliability, and safety.

All Industries – One Partner for All Requirements

Manufacturing Industry

  • Automation & Control
  • Connectivity
  • Instrumentation & Measurement
  • Lighting Technology
  • Machinery
  • Motor Control & Inverters
  • Power Supply & Management
  • Telematics & Tracking

Household Appliances

  • Connectivity
  • HMI & Steuerung
  • Heating
  • Motor Control & Inverters
  • Power Supply & Management
  • Sensors

Entertainment Electronics

  • Audio & Entertainment
  • Connectivity
  • HMI & Control
  • Power Supply & Management
  • Wearables

Networking & Connectivity

  • Power Supply & Management
  • Processing & Control
  • Wired
  • Wireless

Industry 4.0

  • Automation & Control
  • Connectivity
  • Instrumentation & Measurement
  • Lighting Technology
  • Machinery
  • Motion Control & Inverters
  • Power Supply & Management
  • Telematic & Tracking

Automotive Industry

  • Comfort & Safety
  • HVAC
  • Infotainment & Audio
  • Lighting Technology
  • Motor Control & Inverters
  • Drive
  • Power Supply & Management
  • Telematics & Connectivity

Security Technology

  • Switches & Switchgear
  • Connectivity
  • HMI & Control
  • Power Supply & Management
  • Sensors
  • Surveillance
  • Locking Devices
  • Controls

Aerospace Industry

  • Radar Technologye
  • Connectivity
  • Entertainment Systems
  • Motor Control & Inverters
  • Power Supply & Management
  • Traffic Management & Control
  • Sensors
  • Lighting Technology

Medical Technology

  • Battery Charging & Management
  • Connectivity
  • HMI
  • Motor Control
  • Power Supply
  • Sensors
  • Load Cells
  • Medication Pumps

Computing / AI

  • Connectivity
  • Power Supply & Management
  • Processors
  • Displays
  • Memory

Energy / Renewable Energies

  • HMI & Control
  • Inverters
  • Motor Control
  • Power Supply & Management
  • Sensors
  • Smart Meter
  • Lighting Technology
  • Heating & Cooling

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For a Sustainably Better Future

We embody sustainability. As a reliable partner, we take responsibility for our customers, suppliers, employees, and society. Our actions are based on an ethical foundation that considers both economic and social concerns. For years, we have taken responsibility for our operations, maintaining a clear stance on emissions control and the efficient use of energy, water, and raw materials.

Our ambitious goal: by 2030, we aim to become the most sustainable distributor of electronic components in the German market. We work towards this daily, with a spirit of innovation and accountability.

For a Sustainably Better Future

We embody sustainability. As a reliable partner, we take responsibility for our customers, suppliers, employees, and society. Our actions are based on an ethical foundation that considers both economic and social concerns. For years, we have taken responsibility for our operations, maintaining a clear stance on emissions control and the efficient use of energy, water, and raw materials.

Our ambitious goal: by 2030, we aim to become the most sustainable distributor of electronic components in the German market. We work towards this daily, with a spirit of innovation and accountability.

As a provider of electronic components, Components at Service GmbH is committed to the following processes:
Our Milestones:
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Emissions control
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Efficient use of energy, water, and raw materials
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Reduction and recycling of packaging
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Proper waste disposal
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Logistics optimization
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CO2 Neutrality: Since 2022, we have reduced our carbon footprint by 100%.
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Recycling Champion: 100% of our cardboard and packaging materials are recycled.
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Certified Quality: We are certified according to DIN EN ISO 14001:2015.
Careers
Interested in working with us?
Find information and apply here:

BMW Isetta

How a BMW Isetta became the inspiration for Components at Service.

Find out more about it here:

Location

Keltenring 15
82041 Oberhaching

Telephone

Tel: +49 (0) 89 58 80 431 00
Fax: +49 (0) 89 58 80 431 99
Inquiry
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