About us

Founded in 1974, with headquarters in Sweden and operations in 15 countries across four continents, Powerbox serves customers all around the globe. The company focuses on four major markets – industrial, medical, transportation/railway and defense – for which it designs and markets premium quality power conversion systems for demanding applications. Powerbox’s mission is to use its expertise to increase customers’ competitiveness by meeting all of their power needs. Every aspect of the company’s business is focused on that goal, from the design of advanced components that go into products, through to high levels of customer service. Powerbox is recognized for technical innovations that reduce energy consumption and its ability to manage full product lifecycles while minimizing environmental impact. Powerbox is a Cosel Group Company.

About COSEL
Established in Japan 1969, COSEL is one of the world’s leading designers and manufacturers of high performance AC-DC Power Supplies, DC-DC Converters and EMI Filters. With quality, reliability & flexibility as our main focus, we pride ourselves on developing some of the highest quality and most reliable products seen anywhere in the world today. COSEL is a $284m global company employing some 790 staff with sales offices throughout Japan, Asia, Europe and North America.