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The crew

Here is a brief portrait. We are looking forward to our personal contact with you.

Carsten Siers — Carsten Siers

Managing Partner
Competence Centre Analysis and Conception

+49 211 / 828 057 20
carsten.siers@siers-collegen.com
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Carsten Siers

Carsten Siers

Trained bank clerk
International studies of Business Administration with main focus on Marketing and Sales in Aachen and San Francisco (Business Graduate)
Various international sales and management stations (assistant to the management, development of international sales companies, strategic account manager)
Active for 15 years in the areas:
– Implementation consulting sales
– Development of corporate cultures
– Change management
Editor of the studies:

Sales – “Vertriebskompass” in co-operation with the technical college of Aachen 
Culture – “Kulturlotse” in co-operation with the University of Jena

Author of the book “Culture Guide – Harmonizing Benefit and Values

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Arne Borrmann — Arne Borrmann

Competence Centre Implementation and Qualification

+49 211 / 828 057 20
arne.borrmann@siers-collegen.com
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Arne Borrmann

Arne Borrmann

Studied Business Administration with the main focus on Leadership and Rhetoric
Stations as head of sales in retailing and the building industry
Long-lasting occupation in the training of heads of sales and trainers (examination board of the Chamber of Industry and Commerce)
BDVT-certified trainer and consultant, trained Business Coach
Numerous formations and further trainings with certificate in training and coaching
Over 10 years of experience as project leader, trainer and coach in the areas:
– Implementation consulting sales
– Development of corporate cultures
– Change management
Author of the book “Culture Guide – Harmonizing Benefit and Values”

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Tina Schepull — Tina Schepull

Competence Centre Internal Processes

+49 211 / 828 057 20
tina.schepull@siers-collegen.com

Tina Schepull

Tina Schepull

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Siers & Collegen GmbH
Reisholzer Werftstraße 31
40589 Düsseldorf

+49 211 / 828 057 20
info@siers-collegen.com

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