Fujitsu Limited
CorpDigest
Fujitsu Limited
Company History
Founded 1935 in Tokyo, Japan
Last reviewed: 2026-06-10 · By Swet Parvadiya
Founded in 1935 by the Furukawa Zaibatsu and Siemens & Halske in Tokyo, Japan, the company has evolved from a telecommunications hardware manufacturer into a highly focused engine for digital transformation and sustainable technology, driven by a ruthless divestiture strategy that eliminated its legacy hardware businesses. The origin of Fujitsu Limited is a profound tale of visionary engineering, entrepreneurial resilience, and the relentless pursuit of telecommunications modernization, rooted in the bustling, resource-rich industrial corridors of early 20th-century Japan. The Furukawa family, in a joint venture with the German technology giant Siemens & Halske, founded the Fuji Telecommunications Equipment Manufacturing Co. Ltd. with a radical vision: to design and manufacture advanced, domestically produced telecommunications equipment tailored specifically to the unique operational challenges of the Japanese national network. The origin story of Fujitsu is not just a history of a company; it is a mirror of the evolution of the Japanese industrial economy, reflecting the shift from basic telecommunications to heavy manufacturing, and eventually to advanced electronics and digital systems.
From the early days of building telephone switching systems in a small manufacturing plant to the complex deployment of multi-billion-dollar AI platforms and global managed services networks, the journey of Fujitsu is a profound demonstration of the power of strategic vision, engineering excellence, and the relentless pursuit of dominating the foundational technologies of the information age.
The Furukawa Zaibatsu founded the entity that would become Fujitsu Limited in 1935 in Tokyo, Japan, starting as a joint venture with Siemens & Halske to manufacture advanced telecommunications equipment. A visionary industrial conglomerate with a deep understanding of electrical systems and national infrastructure, Furukawa understood that the rapid industrialization of Japan required a massive build-out of domestic telecommunications infrastructure that the foreign-dominated market was ill-equipped to provide efficiently. It pioneered the model of the integrated Japanese technology manufacturer, developing the country's first advanced telephone switching systems, carrier transmission equipment, and eventually early electronic computers, rapidly building a national footprint that could support the expansion of the Japanese national communications grid and the national power grid. Furukawa's vision transformed the business from a local manufacturing plant into a critical component of the Japanese industrial ecosystem, establishing the operational standards and engineering discipline that would guide the company through the devastation of World War II, the post-war economic miracle, and its eventual dominance as a global digital and IT services conglomerate. Its leadership established the foundational DNA of the company, prioritizing domestic self-sufficiency, rigorous physical engineering, and the relentless pursuit of dominating the foundational technologies of the information age.
Siemens & Halske co-founded the entity that would become Fujitsu Limited in 1935 in Tokyo, Japan, partnering with the Furukawa Zaibatsu to build the first major domestic telecommunications equipment manufacturer in Japan. While Furukawa focused on the capital investment, domestic market access, and operational management, Siemens' strength lay in the advanced electrical engineering, technological transfer, and strategic planning that kept the company at the forefront of global telecommunications technology. Its focus on maintaining rigorous European engineering standards provided the company with the technical credibility required to secure major contracts from the Japanese national railway and the national telecommunications monopoly. Siemens' technological discipline and strategic foresight helped stabilize the business during its formative years, laying the technical foundation that allowed the company to eventually develop its own proprietary technologies, including the FACOM computer series, and thrive as a publicly traded global technology conglomerate. Its legacy of engineering excellence and technological rigor remains deeply embedded in the corporate culture of Fujitsu today.
The Furukawa Zaibatsu and Siemens & Halske establish Fuji Telecommunications Equipment Manufacturing, developing advanced telephone switching systems and establishing the foundation for the company's dominance in Japanese telecommunications.
Fujitsu develops the FACOM 100, Japan's first electronic computer, marking the company's strategic entry into the information technology sector and laying the groundwork for its future dominance in core banking and government systems.
The company aggressively expands into semiconductor manufacturing and advanced networking equipment, establishing a deep, institutionalized relationship with the Japanese national telecommunications network (NTT) that would evolve into its modern telecommunications business.
Fujitsu initiates its early cloud transformation strategy, focusing on the integration of IT and physical products, setting the stage for the eventual development of the Kozuchi co-creation platform and managed services business.
Following massive write-downs in the hardware sector, Fujitsu initiates a ruthless divestiture strategy, beginning the process of selling off low-margin, cyclical hardware assets to concentrate entirely on high-return IT services and software.
Fujitsu sells its remaining 49% stake in Fujitsu Client Computing Limited to Lenovo, completing its exit from the personal computer market and redeploying the capital into advanced AI, cybersecurity, and managed services.
Takashi Tokita assumes the role of President and CEO, continuing the aggressive execution of the Medium-Term Management Plan focused on AI-driven managed services, cybersecurity, and maximizing shareholder value through disciplined capital allocation.
To instantly establish Fujitsu as a top-tier global cybersecurity and advanced AI provider, acquiring deep expertise in threat detection, automated security operations, and industry-specific AI applications to accelerate its digital transformation capabilities.
To execute a massive strategic consolidation of the company's portfolio, completely exiting the low-margin, highly cyclical personal computer market to redeploy capital into high-return managed services and software.
Fujitsu began in 1935 as Fuji Tsushinki Seizo (Fuji Telecommunications Equipment Manufacturing), carved out of Fuji Electric to focus specifically on telephone switching equipment. Fuji Electric had itself been formed in 1923 as a joint venture between Japan's Furukawa Electric and Germany's Siemens, so the new telecom unit inherited that engineering pedigree. The spin-off let the company concentrate on Japan's fast-growing telephone network market.
In June 2020 Fujitsu's Fugaku system, built for the RIKEN research institute, was ranked the world's fastest supercomputer on the TOP500 list, a title it held for roughly two years until 2022. Fugaku ran on Fujitsu's own Arm-based A64FX processors rather than off-the-shelf chips. The machine reinforced Fujitsu's advanced-computing credibility decades after it built Japan's first electronic computer.
In 1954 Fujitsu produced the FACOM 100, one of Japan's first electronic computers, extending the company well beyond its original 1935 telecommunications roots. This entry into computing laid the foundation for its later dominance in core banking and government systems. The FACOM mainframe line grew into a business that competed directly with IBM in the following decades.
Fujitsu built and maintained the Horizon accounting system that the UK Post Office rolled out from 1999, and faults in that software contributed to the wrongful prosecution of more than 900 subpostmasters. A public statutory inquiry examining the failures continued through 2024, with Fujitsu executives giving evidence. The company has publicly stated it has a moral obligation to contribute to compensation for those affected.
In 2023 Fujitsu sold its remaining 49% stake in Fujitsu Client Computing to Lenovo, completing a withdrawal from the low-margin PC market that had begun with a majority sale in 2018. The move extended a divestiture strategy started around 2015 after heavy hardware write-downs. Proceeds were redeployed into higher-margin managed services, AI, and cybersecurity.