Prime Strategy Co., Ltd. is a Tokyo-based technology company specializing in cloud integration services and web performance optimization solutions. Founded in 2007, the company develops and provides the “KUSANAGI Stack,” a web acceleration solution that includes an ultra-fast virtual machine for CMS platforms like WordPress, delivering speed improvements up to 2,330 times faster with page caching. It also offers WEXAL®, an acceleration engine designed to enhance Core Web Vitals and PageSpeed Insight scores, and David, a strategy AI that automates web acceleration tuning to reduce operational costs. The company supports cloud platform system integration, cloud management services, website acceleration, and system integration across domestic and international markets including Japan, the US, Singapore, and Indonesia.
Prime Strategy operates through partnerships with major cloud providers and serves clients that include webmasters, information systems departments, and web production companies, helping solve CMS operation challenges such as high load handling, security, speed improvement, and cost reduction. Geographically, it maintains offices in Tokyo, New York, Singapore, and Jakarta, focusing on expanding cloud computing solutions across Asia and globally.
A major recent change is the announcement in late 2025 of a strategic capital and business alliance with GMO Internet Group, Inc., a leading Japanese technology conglomerate. GMO Internet Group proposed to acquire a 59.99% stake in Prime Strategy for approximately ¥3.5 billion through a tender offer expected to close in December 2025, aiming to make Prime Strategy a consolidated subsidiary. This acquisition marks a significant step in Prime Strategy’s growth and transformation, consolidating its position in Japan’s digital economy and enabling expanded cloud and acceleration services under the GMO Internet Group umbrella.