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Regional Executives

Management Team | Board of Directors

Larry Hoelzeman

Vice President, Americas Sales

Larry Hoelzeman

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

Mamoru Nakano joined Cray in January 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.

Dominik Ulmer

Director, EMEA Operations

Dominik Ulmer

Dominik Ulmer joined Cray in September 2013 as Director, Europe, Middle East and Asia (EMEA) Operations. He joined Cray from CSCS, the Swiss National Supercomputing Centre, where he was general manager, and before that, chief operating officer. As general manager he successfully implemented the Swiss National Strategy for High-Performance Computing, building one of the largest “green” supercomputing centers worldwide that hosts TOP10 HPC systems. Since February 2012 Mr. Ulmer has also served as an expert evaluator and reviewer for HPC research project proposals submitted to the European Commission. He has held leadership positions in IT management and worked as a research scientist. Mr. Ulmer holds a graduate degree in geology from Albert-Ludwigs-Universität, Freiburg im Breisgau, Germany.

Andrew Wyatt

Vice President, Asia-Pacific

Andrew Wyatt

Andrew Wyatt joined Cray in September 2007 as Vice President for Asia-Pacific (not including Japan). His 30-year career in 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. 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.

Larry Hoelzeman

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

Mamoru Nakano joined Cray in January 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.

Dominik Ulmer

Dominik Ulmer joined Cray in September 2013 as Director, Europe, Middle East and Asia (EMEA) Operations. He joined Cray from CSCS, the Swiss National Supercomputing Centre, where he was general manager, and before that, chief operating officer. As general manager he successfully implemented the Swiss National Strategy for High-Performance Computing, building one of the largest “green” supercomputing centers worldwide that hosts TOP10 HPC systems. Since February 2012 Mr. Ulmer has also served as an expert evaluator and reviewer for HPC research project proposals submitted to the European Commission. He has held leadership positions in IT management and worked as a research scientist. Mr. Ulmer holds a graduate degree in geology from Albert-Ludwigs-Universität, Freiburg im Breisgau, Germany.

Andrew Wyatt

Andrew Wyatt joined Cray in September 2007 as Vice President for Asia-Pacific (not including Japan). His 30-year career in 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. 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.