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March 2005

Peter Liebetrau founds Liebetrau Listservice GmbH. As a pure list manager, we specialise in the marketing of mailing lists. Lars Mühlschlegel is an employee since the very beginning. We take up premises in Leostrasse in Cologne-Ehrenfeld.

April 2005

The team receives support from a second employee. adreko GmbH, which renders services relating to data protection, relocates from Cologne-Bayenthal to Ehrenfeld to share office space with us.

September 2005

We take on our first apprentice, who is undergoing training as an office clerk.

January 2006

For the first time, we act as broker for mailing lists and parcel inserts that are not exclusively marketed by us – our debut with list broking.

June 2008

We coordinate for the first time the compilation of a voucher booklet involving a cooperation between several mail order companies. This voucher booklet, which has been produced virtually every year since then, is distributed through parcel inserts with the participating mail order companies and offers a low-price possibility to win new customers.

January 2009

Entry into the French market. Over the following months and years, we have gained in-depth knowledge of the specifics of the market and have made numerous direct contacts to list owners, mailers and service providers in France.

March 2010 GmbH, which offers professional search engine marketing and places its focus on customers from the mail order sector, joins our office sharing arrangement.

May 2010

In order to meet the growing demands of our customers in France, we create a dedicated position.

July 2010

Wealth Overlay by Major Giving Solutions enables us to offer German non-profit organisations the possibility of identifying donors with a major financial potential from within their own databases.

March 2012

For the first time, we broker e-mail addresses for our customers and advise them on how to implement their campaigns. As an unbiased advisor, we have access to the most important e-mail mailing lists which we can book at favourable terms.

January 2013

Lars Mühlschlegel becomes one of the general managers of Liebetrau Listservice GmbH.

May 2018

After a few successful years where we placed some address and insert bookings in Great Britain, we now have a client that put his complete budget allocation for Great Britain into our hands.

February 2020

After 15 years we leave our office in Leostreet and move into modern and bright office rooms at the southside of Cologne.

Since 2005, Liebetrau Listservice has been a member of Deutscher Dialogmarketing Verband e.V. (German Dialogue Marketing Association – DDV) and participates in the DDV’s Competence-Center Targetgroup-Marketing. We have been certified with the QualitySeal Listbroking for exemplary quality and services. Within the DDV, Peter Liebetrau has been working for several years now to develop a practicable approach to data protection.

Since 2010, Liebetrau Listservice has also been a member of Deutscher Fundraising Verband e.V. (German Fundraising Association).