Regional Executives

Larry Hoelzeman
Vice President, Americas Sales

Larry Hoelzeman was appointed the position of Vice President of Sales, North America in 2006.  He is a 21 year HPC industry veteran and has served in a variety of sales and presales roles at Cray Research, SGI, and Cray Inc.  Mr. Hoelzeman holds a B.S. in Computer Science from the University of Central Arkansas.

Mamoru Nakano
President, Cray Japan

Mamoru Nakano joined Cray in January of 2005 as President of Cray Japan.  Previously, he held the position of general manager for HPC and Linux in the Japan and the Asia-Pacific region, including Japan, for Hewlett Packard.  Mr. Nakano started out 23 years ago in a research position with Mitsubishi Heavy Industry, and has held a series of increasingly responsible management positions in Japan with Digital Equipment Corporation and that firm's new parent, Compaq, before the latter company was acquired by Hewlett Packard.  He has demonstrated notable leadership in growing market share for DEC, Compaq and Hewlett Packard and introducing the companies' products to new customers and new market segments.  His management experience includes sales, marketing and service, all in the technical computing market in which Cray also competes.

Robert (Bob) Pencek
Director, Intelligence Accounts

Bob Pencek, with more than 20 years experience in the HPC industry, joined Cray in 2006 as Director of the Cray Intelligence business. Previously, he worked at SGI Federal as the Director of Strategic Relationships where he was responsible for the executive relationship with a major U.S. systems integrator. Prior to that, Mr. Pencek managed a team of more than 100 pres-sales technical engineers as the Director of North America Systems Engineering. He also served in a number of sales, technical and engineering roles at Silicon Graphics and Westinghouse Electric Corporation. He received a B.S. in electrical engineering and a M.S. in computer science from the Johns Hopkins University.

Ulla Thiel
Vice President, Europe

Ulla Thiel serves as Vice President for  Europe, the Middle East and Africa (EMEA).  Before joining Cray in February 2004, she was the director of HPC Sales EMEA in IBM. Prior to that assignment she held increasingly responsible management positions at IBM since joining that company in 1989, including roles in HPC marketing, sales, and sales support. Dr. Thiel received her doctorate in mathematics from Saarbruecken University (Germany), she also studied at the University of Edinburgh (UK), and has held various research positions at Universities in Heidelberg, Germany and Madrid, Spain.

Andrew Wyatt
Vice President, Asia Pacific South

Andrew Wyatt joined Cray in September 2007 as Vice President for Asia-Pacific (not including Japan).  His 30-year career in High Performance Computing (HPC) has included roles with Cray Research subsidiaries in Australia as Director, with SGI as Asia-Pacific Director for HPC Strategic Relationships, and with GEIS/Honeywell in Sales and Marketing. Mr. Wyatt has had extended residential postings across Asia-Pacific including India, China, Korea, Singapore and Taiwan during his HPC career. He has also had postings with the SAS Institute as the Australian Academic Program Director and with Ringier Trade Publishing (RTP) in Shanghai, China as Director of Conference and Events.  He graduated from Monash University, Melbourne, Australia in Civil Engineering.