03 Feb

About Ralf Rottmann

Ralf RottmannMy name is Ralf Rottmann.

I’m a serial entrepreneur who sold his last company to Alcatel-Lucent and now serves as the Managing Partner (“Geschäftsführender Gesellschafter”) at grandcentrix which I co-founded. As a Member of the Board of Directors at IOTA Foundation I help growing one of the most fascinating Distributed Ledger Technologies of our time and enterprises to apply it to real-world use cases.

Incorporated in 2009 with my long-term business partner in crime, Martin Willnow, grandcentrix has become Germany’s largest system integrator focussing entirely on large scale digital products and the Internet of Things.

At grandcentrix I run Technology, R&D & Sales.

Our team comprising 150+ full-time members (March 2018) is specialized in

  • Design Thinking and User Experience Design
  • Electronics and Embedded Development with a focus on connectivity and cyber physical systems security
  • Internet of Things Platforms for Sensor Networks, Smart Products and Industrial Automation
  • Edge Intelligence and Machine Learning
  • Android, iOS and Web Development
  • 24×7 carrier-grade cloud native operation (Kubernetes, Docker)

At grandcentrix, we help clients like Viessmann, Reifenhäuser, Miele, Leica, GIRA, Migros, German Telekom, Roche, AXA and many other market leaders to address the challenges of the Digital Transformation by designing, building and integrating Digital Products and Business Models. I’m frequently having the privilege to meet C-level members of these companies and getting deeply involved into their digital transformation strategy discussions.

I also co-founded the inspirational fashion shopping startup AMAZE which we sold to Zalando in May 2016.

As the Managing Partner of Rottmann Willnow Ventures GmbH Martin and I occasionally invest into handpicked digital ideas.

In 2010, Germany’s renowned WirtschaftsWoche put me on it’s List of Best Known Serial Entrepreneurs.

Ad a former Editor for The Next Web, one of the World’s leading Technology Blogs, I published articles with a focus on technology startups up until the end of 2008.

Prior to all of the above, I served as the Head of Information Technology at 1&1 (now United Internet) which was my last professional engagement prior to my journey as an entrepreneur.

I’m mostly known as an expert on all things IoT Cloud Platforms and love the Open Web, Business and Culture.

Find me: Twitter (@ralf), LinkedIn, Facebook and Google+, where I have a combined following of roughly 90.000 technology-loving people.

I am very happily married to Jintana, who shows me that there is an awesome life beyond the screen, every single day. ;-) We live in Dortmund, North Rhine-Westphalia, the fourth greenest city with a 500k+ population in Germany.


I had the pleasure to work with some brilliant folks over the years. Here is what some are saying about me. (All recommendations are also publicly available through my LinkedIn profile.)

Brian Galvin, Chief Technology Officer (CTO) at Nuance Communications, Inc.:

“Ralf is an extremely gifted and visionary developer. He was essential to the success of his last two companies, and we considered him personally to be a strategic partner of Genesys. Ralf is also a well-read, enthusiastic explorer of ideas and experiences, and he easily builds rapport with all whom he meets. He is very strong in customer-facing situations, and he is equally adept at ‘delivering the goods’ – a great engineering leader!”

David van Everen, VP, Digital Marketing at Five9:

“Ralf is an extremely capable strategic thinker and product development/management professional. We collaborated on innovative new user applications that made complex call center functionality both easier to use and more powerful. I highly recommend Ralf for senior positions in developing advanced call center software.”

Robert (Bob) Lowry, President at On Demand Power, Inc.:

“Ralf is an outstanding strategist. He has both the ability to envision the needs of the future and the technical skills to develop the solutions. In addition to those attributes, he also has very strong communication skills to clearly get the points across to any level of audience members. His enthusiasm for his work is unparalleled and contagious. I truly have enjoyed working with him in the past and look forward to future projects that will give me the opportunity again in the future.”

Fred Sedlacek, Internationally Experienced Services Executive:

“Ralf is truly a master of his domain. With his technical expertise and under his leadership, he and his team created a a product which not only enhanced our portfolio but also created new market opportunities for us. He is passionate, dedicated and a committed partner. Ralf has the perfect blend of technical expertise and business acumen. It has been an honor to have worked with Ralf in creating not only the next generation product but also a very significant and fruitful relationship.”

Elliot Danziger, Chief Technology Officer (CTO) at Genesys Telecommunications, Inc.:

“I have known and worked with Ralf for many years and have found him to be exceptional in many areas. He has a unique blend of detailed technical knowledge combined with a strong business intuition. His drive and enthusiasm are infectious and he adds a degree of excitement to those around him. He is also a strong team leader and business manager that can drive toward achieving the goals of even aggressive business plans. I would strongly recommend Ralf as a key executive for companies that want to drive leading edge technology forward.”

Dr. Helmut Reisinger, Senior Vice President (SVP) at Orange Business Services:

“Excellent professional with hi-level seniority in all domains of call/contact center and voice application matters. Trustworthy.”

Monique Bozeman, Senior Manager Product Marketing at Genesys Telecommunications, Inc.:

“Ralf has worked with Genesys both as a customer and partner, not that those two are ever mutually exclusive. His technical and market knowledge, expertise and ability to use, improve upon and create and effectively demonstrate market leading, user friendly products is impressive.”

James Stuart, UK General Manager at twenty4help Knowledge Service AG:

“[…] I remember Ralf very well indeed from when we were both in 1&1. Our working relationship was relatively brief… but it had a significant impact on me. I found Ralf to be knowledgeable, helpful and with a high level of integrity – and if I recall correctly, he ate all the biscuits from my office. I am so pleased Ralf is being recognized for his obvious talents and skills. This just shows there is justice in the world. Well done Ralf. One day we will meet up again. I look forward to it. My very best regards. James Stuart.”

© Copyright 2017 by Ralf Rottmann.