Consultancy

Axel Kellermann

Axel Kellermann

CEO
The graduate in business administration with an MBA in Entrepreneurship and International Change Management (Helsinki School of Economics) ended his successful international career with the Aral/BP Group in 2010 to become an independent interim manager (covering Program- and project-management, restructuring and post-merger integration). In 2014, along with other interim managers he founded project & change experts, the predecessor company of today’s proINject GmbH. Under this brand and their motto “From interim Mangers for Interim Managers”, Axel Kellermann and founding partner Alexander Mauer, have been placing managers on a temporary or permanent basis. Axel Kellermann’s expertise is sales as well as human resources and transformation management.
Alexander Mauer

Alexander Mauer

CEO
The lawyer with a master’s degree in organisational management spent 20 successful years with the Aral/BP Group on a national and international basis. He was involved in various projects and assumed roles as executive and managing director. His tasks ranged from organisational and product development to commercial and sales roles, as well as future conscious tasks concerning CO2 management. As strategic consultant for the predecessor company project & change experts, he has been familiar with the interim management market since 2014. In 2017, he founded proINject – Interim Network together with Axel Kellermann. In addition to the relevant legal topics, the Bochum native specializes in communication and technology.

Council of Experts

Our expert network consists of C-level executives from a wide range of industries. Each member has excellent contacts to decision-makers in industry and mid-sized companies. The result is an expansive and solid network that identifies needs at an early stage and supports companies throughout all project phases, from the initial desire for change to the final project success.

Das proINject Team

Kerstin Beyreis

Kerstin Beyreis

Head of Interim Network
The BA with a degree in business and cultural studies spent 14 years in a managerial function at the Munich-based interim provider ZMM, where she gained an excellent reputation in the industry. In 2018, she joined proINject, where she is now responsible for the expert pool and acts as contact person for both interested parties and members.
Ralf Sumfleth

Ralf Sumfleth

Business Development
The business graduate has previously assumed various roles in the consumer goods and shipping industry and found success as an independent consultant. Sumfleth is an expert in marketing and logistics.
Kirsten Kellermann

Kirsten Kellermann

Organisation
The industrial management assistant and graduate translator is responsible for organisation and administration at proINject.

Any questions?

Please send an e-mail to info@proinject.de.
You can also reach us by phone at +49 (0)234 / 61039707.