
Siempelkamp Industrial Fans is a medium-sized, ISO 9001 certified company that is committed to always responding flexibly to the individual wishes of its customers. We employ a qualified and motivated team that is available at all times to realize projects cost-effectively and on schedule. If desired, we are happy to assist with advice and action right from the planning phase regarding questions of design and implementation of the respective project.
Based on our many years of experience with customers from the most diverse industrial segments, we can offer innovative and cost-effective proposed solutions. Seriousness and reliability characterize the relationships between us, our customers, and our suppliers. This has led to special contacts and appreciation, which secure us a leading position in competition with other providers of the product groups we represent. Continuous product evaluation, state-of-the-art manufacturing techniques, and a team of highly qualified specialists and managers are the best foundation for our success in the coming years.
Vision

Global Presence
Thanks to our international orientation and strong partnerships, we are connected worldwide. This enables us to respond flexibly to the demands of global markets and provide reliable support to customers everywhere.

Sustainability
Sustainable thinking and responsible action are at the heart of our company. We focus on environmentally friendly processes, resource-efficient solutions, and long-term responsibility for future generations.

Innovation
We develop modern, future-oriented solutions that combine quality, efficiency, and progress. Through creative ideas and innovative technologies, we create lasting value for our customers.
We see ourselves as a reliable partner for holistic process air solutions, offering our customers comprehensive, single-source service—efficient, reliable, and sustainable.
Expertise, research, and development form the foundation of our organization. Through continuous innovation, we create tailored solutions for forward-looking technologies that meet the highest standards of quality and performance.
Our corporate culture is rooted in clear values, a sense of responsibility toward the environment and society, and appreciation for our employees. We foster a work environment characterized by open communication, transparency, and honest feedback at all levels.
Your Contacts
Together, we will find the right solution
Sales
Kordian van der Moolen, M. Eng.
Project Management
Service
Detlef Kallisch
Michael Zittrich
Vanessa Allermann
International Representations

Thomas Neukirch
+49 172 530 690 2

KOCH Global Consulting GmbH
+49 40 351 50 200

Aleksander Koszembar
+48 506 390 164

William Wang
+49 171 279 6221
Siempelkamp Group (worldwide)
Siempelkamp Industrial Fans GmbH, a company of Siempelkamp Maschinen- und Anlagenbau GmbH.
Made in Germany. In use worldwide.
Membership in the VDMA: Commitment to German Engineering
Siempelkamp Industrial Fans is a proud member of the VDMA (German Engineering Federation). This membership underscores our deep commitment to German engineering tradition, the highest quality standards, and the continuous development of our products and processes in industrial process air technology. As part of the VDMA, we actively contribute to strengthening mechanical engineering in Germany and are committed to sustainable and innovative solutions.
History
2026
New website
2025
Rebranding
2024
Introduction to Lean Management
2024
Focus on full-service solutions
2018
EAC Certification
2015
Laser investment
2012
Siempelkamp subsidiary
2007
ISO 9001 certification
1972
Founding

In May 2025, VENTAPP GmbH was officially renamed Siempelkamp Industrial Fans GmbH. This step marks the consistent further development of our brand within the Siempelkamp Group. Continuity is maintained for our customers and partners: All existing contracts, contact persons, and our usual high quality ‘Made in Germany’ remain unchanged under the new company name.