Dennis ZimmerFounder

United States - Houston, Texas,

Dennis Zimmer is a renowned virtualization expert with a special focus on Server virtualization of large environments.
Working for over 25 years in the IT industry, he has a strong reputation as technology visionary across the Globe with lots of experience in sales management.
He is a published author of best-selling books, articles and training videos for virtualization technologies and a popular keynote speaker for industry events, including VMworld Europe, where his session was awarded best of show and most attended (3 sessions, ~1000 attendees).

Awarded a VMware vExpert for 13 years, he is a thought leader within the Virtualization Community.

Dennis is CTO and Co-founder of Codenotary Inc. in Houston, TX, USA the company behind the highly popular Open Source immutable database immudb. Codenotary offers software to prevent and mitigate damage from harmful components in a DevOps environment. Codenotary Cloud is an all-in-one solution that provides code signing, SBOM lifecycle management, vulnerability scanning and runtime enforcement.

In 2012, he co-founded opvizor Inc., offering a completely new in-depth Virtualization monitoring and analytics solution that helps to predict issues and find bottlenecks in a virtual infrastructure before they cause downtimes or damage. Today, opvizor helps more than 1,000 system administrators and consultants in global enterprises avoid costly damage and optimize their virtual environments (VMware vSphere, VMware vCenter) including ESXi hosts and virtual machines.

Prior to establishing opvizor, Dennis co-founded icomasoft AG in Switzerland and worked on a wide range of high-profile projects in the virtualization field, including spearheading consulting projects for companies such as Siemens, OBI, Deutsche Bank, Migros, Unicredit, and more. During this time he also developed a successful product, VI PowerScripter, which was later sold to DevFarm. Prior to going independent, Dennis worked for companies such as Pillar Data Systems and Mightycare Solutions (VMware Premier Partner).

Dennis is a thought-leader and pioneer in his space. In 2006 he founded the first VMware usergroup in Germany and in 2010, he founded the NetApp usergroup Switzerland. Through his blogging and writing efforts, he has been awarded the title of VMware vExpert ten years running, an honor only 50 people worldwide have achieved. He has published 10 books total, 6 of which have been bestsellers.
Dennis graduated from Advanced Technical and Business College in Germany at the age of 18.