Advanced Energy(R) Earns Top Ratings From VLSIresearch Customer Satisfaction Survey, THE BEST SUPPLIERS OF 2015

Advanced Energy Industries, Inc. (Nasdaq:AEIS) announced today that it has been named one of the world's best suppliers in the VLSIresearch 2015 Customer Satisfaction Survey. Ranked among the top subsystem suppliers in THE BEST awards with an overall 8.53 rating, Advanced Energy (AE) led the process power segment as the #1 supplier of power-delivery solutions.

VLSIresearch, an independent organization dedicated to market research and analysis for the semiconductor, nanotechnology and related industries, named the standout companies on May 20 after the annual international survey results were released. In the only publicly available opportunity to provide feedback about their suppliers, customers responded to a two-page survey questionnaire, available in five different languages, rating suppliers on a 10-point scale among 15 categories. The highest rated categories for Advanced Energy included:

• Technical Leadership
• Recommend Supplier

With 34 years of innovation development, Advanced Energy is a recognized world leader in precision power conversion technology, and THE BEST award places AE in a distinguished position. As the survey results are based solely on customer feedback, the award is a testament to AE's agile approach to customer engagement.

"The semiconductor industry demands rapid technological development, and suppliers must keep pace," said Yuval Wasserman, president and CEO of Advanced Energy. "AE is a recognized and valued partner, providing reliable, efficient and highly-engineered, mission-critical, precision power conversion solutions to our global customers, and these survey results validate that our customers continue to rely upon us to power their innovations."

Advanced Energy critical subsystems have been designed into the leading semiconductor and nanotechnology systems around the world for 34 years.

About the 2015 Customer Satisfaction Survey

VLSIresearch received feedback from more than 96% of the chip market, 82% of the subsystems market, and 32% of the solar market for this year's survey. The survey spanned two and half months and covered five languages. Worldwide participants were asked to rate equipment suppliers among fifteen categories based on three key factors: supplier performance, customer service, and product performance. 3,842 suppliers were rated, resulting in 57,207 total responses.

The VLSIresearch annual Customer Satisfaction Survey is the only publicly available opportunity since 1988 for customers to provide feedback for suppliers of: semiconductor equipment, solar equipment, and subsystems. The 10 BEST and THE BEST awards provide special recognition to suppliers that are rated highest by their customers.

10 BEST awards recognize each chip making equipment supplier as a whole, regardless of product type:

• Fab, Test, and Assembly equipment ratings are grouped together for an overall rating for each supplier
• Each supplier is then listed in one of two categories based on a three-year average of total revenues for all its market segments: Large and Focused

THE BEST awards recognize the more detailed markets for chip making equipment suppliers, as well as suppliers in adjacent markets:

• Fab, Test, and Assembly
• Subsystems and Other Markets

Click here for more details on the survey.

About Advanced Energy

Advanced Energy (Nasdaq:AEIS) is a global leader in innovative power and control technologies for high-growth, precision power conversion solutions. Advanced Energy is headquartered in Fort Collins, Colorado, with dedicated support and service locations around the world. For more information, go to www.advanced-energy.com.

About VLSIresearch

VLSIresearch is an award-winning provider of market research and economic analysis on the technical, business, and economic aspects within semiconductor, nanotechnology, and related industries. VLSIresearch provides intelligence for faster and better decision making in the areas of semiconductors, photovoltaics, LEDs, manufacturing, materials, and critical subsystems. VLSIresearch was founded in 1976.

CONTACT: Bates Marshall
         Senior Vice President
         Global Sales, Marketing and Service
         Advanced Energy Industries, Inc.
         +1.408.574.2534