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Executive profiles

Get to know our leadership team

Kazuhisa Kamiyama

Chairman & CEO, Christie Digital Systems, Inc.

Kazuhisa Kamiyama is the Chairman and CEO of the Christie holding company, Christie Digital Systems, Inc. He has held numerous positions with Christie, and its parent company, Ushio Inc., most recently as Chief Financial Officer of Christie.

Kazuhisa joined Christie’s parent company Ushio Inc. in 1995 in Accounting and Corporate Management, and led the acquisition of Electrohome Projection Systems in 1999. He became CFO of Ushio America in 2003 and was named General Manager of Accounting in 2011, and General Manager, Corporate Management, in 2013. He became Executive Officer, General Manager of Ushio’s Corporate Headquarters (parent company of Christie and Ushio America) in 2016, overseeing company financials that included investor and bank relations, and Mergers & Acquisitions. In 2018, Kazuhisa was named Chief Financial Officer of Christie.

Kazuhisa holds an MBA from the Int​ernational University of Japan.

Zoran Veselic

President and COO, Christie Digital Systems, Inc.

Zoran’s 20-plus years of global experience with a range of business and technological assignments in the AV industry spans the worlds of engineering, product quality, strategic business unit management, sales and product management. He brings a customer-centric approach to business that has contributed to Christie’s reputation for delivering quality, award-winning products and solutions backed by an unprecedented level of customer support.

As President and COO, Christie Digital Systems, Inc., Zoran is responsible for Christie’s strategic product line direction, managing the development of new products and system solutions by adopting core technologies for a rapidly changing global marketplace.

Zoran has a Bachelor of Applied Sciences in Computers and Automation and a Master of Business Administration degree. He holds a professional engineering designation from the Association of Professional Engineers Ontario and a certificate in system engineering from Marconi College in Chelmsford, England.

Michael Phipps

CFO Christie Digital Systems, Inc.

​As CFO, Mike Phipps is responsible for the Global financial operations and the consolidated financial reporting for Christie. His responsibilities include accounting operations, financial planning and sales support functions such as contract administration and revenue recognition.

Mike joined Christie in 2008 as an Assistant Controller and has since held roles as Vice President Finance, USA Controller and Corporate Controller.

Prior to joining Christie, Mike worked with Sara Lee as a Plant Financial Manager and Hayes Lammerz International as Plant Controller. Mike holds a BA in Finance from Michigan State University and is a California Certified Public Accountant.

David Doyle

CIO Christie Digital Systems, Inc.

David Doyle has enjoyed over thirty-five years in the movie exhibition industry, having held positions in Information Technology, Operations and Marketing. David's career has revolved around the customer experience and innovative uses of technology.

David joined Christie in December of 2018. Prior to Christie, David worked for 16 years at Regal Entertainment Group, where he held positions including Vice President of IT Business Planning and Chief Information Officer.

Prior to Regal, David was the Executive Director and Vice President of Sales & Marketing at a world-leading syndicator of movie and cinema information.

David started his career at Mann Theatres, where he worked his way up from usher to General Manager, having managed some of the most prominent cinemas in Colorado and California.

David resides in Knoxville, Tennessee with his wife and two daughters.

Michael Bosworth

Executive Vice President, Enterprise

Michael’s incredible 30+ years of AV industry experience started in the UK at a rental staging company that supplied the West End theatres in London. After moving into a business development role, he moved back to Australia and worked as a general manager with Staging Connections in Brisbane. His next move? Creating his own design visualization solutions company, VR Solutions Pty Ltd. (VRS), which grew to include offices in Australia, India, and Malaysia. When Christie acquired VRS in 2013, Michael managed the Christie Australia office and served as head of Asia Pacific sales for the enterprise division.

With significant experience that spans rental staging, theme park and visitor attractions, control rooms, and product distribution markets, Michael is well-positioned in his role as EVP, enterprise. In this role, Michael leads a division that creates innovative AV solutions for many customer markets, from control rooms, government solutions, and education, to rental and staging, museums, giant screens and planetariums, and more.

Sean James

Executive Vice President, Professional Services

Sean James is responsible for Christie's Global Professional Services (GPS) division. Prior to this role, Sean led the global Enterprise team.

The GPS team is a solutions focused team which supports Christie’s clients with: project architecture, technology and software selection, interactive programming as well as deployment and post-launch support. These services are provided for a variety of applications including professional AV, simulation, visualization, digital signage and many others.

In 2005, he helped to develop and deploy the world’s first scale digital cinema deployment of nearly 4000 screens across the United States. He also led the development of Christie’s first NOC in 2002, its successor in 2009 and additional NOCs in China, Russia and Australia.

Sean joined Christie® in 1997 and was instrumental in developing support programs and relationships with many leading studios in Hollywood as they began transitioning to digital cinema. He successfully won and developed one of the company’s first major service and network operations contracts.

Sean plays a key role in driving Christie’s expansion in the industry. His insights into Christie’s goals and vision have been crucial in enhancing Christie’s reputation as a global leader in digital services and systems integration.

Clark Williams

Executive Vice President, Ventures

As Executive Vice President, Content Management and Processing, Clark Williams is responsible for all engineering and product management resources for Christie’s content management and processing products—including Christie® Spyder, Christie Phoenix​, Christie Brio and Christie Pandoras Box.

Building on the success of Christie’s content management and image processing portfolios, Clark’s team accelerates the number and range of customer applications in this area, and meets the growing need for unified, application-specific solutions.

In July 2007, Clark became Vice President, Windowing and Compositing Solutions, after Christie acquired his company, Vista System, Corp. This acquisition allowed him to focus on high-end image processing products while taking advantage of Christie’s sales strength and global footprint. In October 2016, following a successful consulting period, he re-joined Christie as Executive Vice President, Content Management and Processing.

Clark started Vista Systems, Corp., in 1996 in Phoenix, Arizona when he realized there was a huge demand for the hardware tools he’d developed as part of his technical consulting business.

Brian Gifford

Executive Vice President, Global Human Resources

Brian Gifford is the Executive Vice President of Global Human Resources. He was most recently the Senior Vice President of Human Resources at Signode Industrial Group (Industrial Packaging) since January 2015. Brian's career has spanned more than 39 years, much of that with the oilfield services industry, leading the Global HR function with companies such as Lufkin Industries, Schlumberger and Ensco International.

His expertise knows no borders, as he has lived and worked worldwide, including the Americas, South and East Asia and Canada. Being a dual citizen of the United States and Canada, Brian has worked, lived and traveled extensively in Canada, the US and internationally. Brian is a graduate of the University of Windsor, where he received a BA in Psychology. He has studied at the Levinson Institute and is a strong proponent of Accountability Management.​​

Bret Tracey

President, Nationwide Video

As President of Nationwide Video (Nationwide), Bret Tracey is responsible for directing the Nationwide wholesale subrental sales and operations in North America. Nationwide is a leader in creative, alternative video equipment rental solutions – from unique time-saving gear casing solutions to freight-free shipping – for the Pro Av Industry.

Acquired in 2003, Nationwide now operates as a wholly owned subsidiary of Christie®. Nationwide is a leading wholesale subrental video equipment supplier to the rental and staging industry and operates in all 50 States, and Canada. They provide rental equipment, 24/7/365 customer and technical support, and offer technical training to AV staging professionals.

Bret joined Nationwide in 1999, as the director of sales, marketing and business development and became vice-president in 2003. He was promoted to president in 2009. Bret has seen Nationwide grow from a two-man operation in a 1,200 square foot office to a 40-employee organization with six offices across the U.S. His detailed attention to operational improvements, staff growth and improved inventorying have seen Nationwide revenues increase by at least 30 percent year over year.

Bret graduated with Honors and Distinction, Honorable Discharge Hospital Corps., U.S. Navy (Naval School of Health Sciences, San Diego California) and attended Ferris State University (Big Rapids, Michigan, USA).

Global Vice Presidents

Clint Carter - Vice President, Global Quality
Brian Claypool - Vice President, Product Management, Global Cinema
Kening Zhang - Vice President, Global Manufacturing
Mike Esch - Vice President, Global Engineering
Robert Ranucci - Vice President, General Counsel & Secretary, Christie Group Companies
Greg Shepherd - Vice President and Associate General Counsel, Christie Digital Systems Canada Inc.
Susie Beiersdorf - Vice President Sales, Cinema – Americas
Lin Yu - Vice President of Sales, Asia Pacific, Christie Digital Systems USA, Inc.