Siewert & Kau
Siewert & Kau
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Siewert & Kau – A strong partner by your side

Distribution is our passion

Siewert & Kau has been active on the market in the IT trade sector since 1994. With around 400 employees and an annual turnover of over 700 million euros, we are one of Germany’s largest and most successful IT distributors. The head office is located in Bergheim near Cologne. In addition, we have further sales offices in Braunschweig, Halle (Saale), Paderborn, Soest, Hengelo (Netherlands) and Premià de Mar (Barcelona/Spain).

The special thing:
Our company has decades of industry expertise and is one of the pioneers in the trade of selected IT products. For this reason, it goes without saying that we also make ourknow-how available to our partners and customers.

While Siewert & Kau Logistics handles the complete range of logistics services including warehousing and cargo, Siewert & Kau Services offers our partners a competent all-round service in the areas of software, marketing and accounting.

You would like to know more about us?

See our company presentation:

Siewert & Kau – Roll the film!

Your advantages with Siewert & Kau


Fast, reliable and individual distribution


Optimum IT product availability at all times


Unbeatable prices


Personal contacts for all customers


Same-day delivery


Support and consultancy


Modular service tailored to your needs


Consultancy in all financing matters


Rollout, installation and IT support

More information

Managing Directors/Company Founders

Siewert & Kau is a founder-managed company. And that pays off. Since its foundation in 1994, it has been managed and shaped by Björn Siewert, Holger Kau and Oliver Kau. In their hands lies the strategic company orientation as well as the conception for the development of new business fields.

Of course, the founders are more than just managing directors – they are still involved in the day-to-day operations and thus ensure that the pioneering spirit and passion to keep reinventing themselves is preserved. Like all employees, they are available every day and work as a team for your success.

Since 2016, in addition to the company’s founders, Markus Hollerbaum has been part of the management team at Siewert & Kau Services GmbH

Global IT distribution

We operate in the world’s major distribution markets with trading partners in 65 countries. Thanks to our international workforce, we are not faced with any language or cultural barriers – and can thus individually address the needs of each market.

Our highly-qualified employees and our contact to the leading manufacturers and logistics services suppliers make us the ideal partner in international IT distribution.

Outstanding performance

In addition to our numerous platinum, gold and silver manufacturer and partner awards, we are also regularly recognised by renowned IT trade journals.

At the center of our action is a close relationship to our customers and business partners. This is based on mutual trust.
Through knowledge, experience and behavior as well as through concentrating on the common daily business, we deepen and strengthen this trust continuously.

Business conducted by people for people
Working for and with each other is an integral component of the corporate culture we bring to life. That’s why we foster the creativity and development of our employees, regardless of gender, religion or nationality.

Training and further education are part of what we do. We think in generations and ensure the sustainable development of our highly motivated team as a guarantee for the continuity and quality of our services.

Welcome to Siewert & Kau

Do you have questions about our activities and services? Would you like to learn more about us? We look forward to getting to know you.