We are VIER🚀
Your team
at VIER
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Management
Rainer Holler, CEO
Rainer Holler is CEO of VIER GmbH and is rethinking customer dialog and communication. The business graduate and EMBA wants to set the new European standard for AI-supported customer interaction with the German software company. To achieve this, Rainer Holler attaches great importance to mutual trust, cooperation and transparency. Rainer Holler is a passionate campaigner for the idea of symbiosis between humans and AI and sees the combination of the best capabilities of human and artificial intelligence as the basis for a successful economic future.
Rainer Holler, CEO
Rainer Holler is CEO of VIER GmbH and is rethinking customer dialog and communication. The business graduate and EMBA wants to set the new European standard for AI-supported customer interaction with the German software company. To achieve this, Rainer Holler attaches great importance to mutual trust, cooperation and transparency. Rainer Holler is a passionate campaigner for the idea of symbiosis between humans and AI and sees the combination of the best capabilities of human and artificial intelligence as the basis for a successful economic future.
Carsten Fiegler, Vice President Business Communications
As Vice President of Business Communications, Carsten Fiegler is responsible for the successful expansion of the company's business with intelligent, AI-based contact center solutions. He has been successful in IT and sales for over 20 years.
Before joining VIER, he was Strategic Global Alliances Director at Genesys Cloud Solutions, where he was responsible for GSI partners in Germany. Previous career positions include Oracle, Veritas Software, and Attensity/Sematell.
Daniel Krantz, Vice President AI
As VIER Vice President AI, Daniel Krantz focuses on the orientation and expansion of AI activities, the further development of the VIER product portfolio, the development of new business areas and the expansion of strategic partnerships. Daniel Krantz has a degree in business administration and previously worked at Otto Group and Freenet, among others.
Steffen Langstädtler, Vice President Cloud & Platform Services
Steffen has been VIER Vice President Cloud & Platform Services since August 2021. For Steffen, topics such as technological scaling, stability, high availability, reliability and security are the linchpins of his work and for the continued success of the technology company VIER. Before joining VIER, he worked at Sartorius AG and STI Group.
The team
We are VIER!
Get to know the people and colleagues who make VIER a successful company and great place to work.
Founder and owner
Olav Vier gen. Strawe
Olav Vier gen.Strawe, born in 1962, studied business administration and business informatics in Cologne and at Pennsylvania State University.
He has been dealing with customer communication and voice processing for almost 30 years now and initiallly founded his company 4Com in the early 1990s. Following the acquisitions of the technology companies voiXen, parlamind, Lindenbaum, PRECIRE and cognesys, the company VIER was created in 2021 from the merge.
In addition, Olav publishes the trade journal "TeleTalk" and the handbook "Call Center Management". Olav is married and, as a citizen of the world, feels at home in Germany as well as in the USA and Japan.
Olav Vier gen.Strawe, born in 1962, studied business administration and business informatics in Cologne and at Pennsylvania State University.
He has been dealing with customer communication and voice processing for almost 30 years now and initiallly founded his company 4Com in the early 1990s. Following the acquisitions of the technology companies voiXen, parlamind, Lindenbaum, PRECIRE and cognesys, the company VIER was created in 2021 from the merge.
In addition, Olav publishes the trade journal "TeleTalk" and the handbook "Call Center Management". Olav is married and, as a citizen of the world, feels at home in Germany as well as in the USA and Japan.
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