Sony

Sony Group Corporation—often just called Sony—is a Japanese multinational conglomerate based in Minato, Tokyo, at the Sony City building. The group’s operations span electronics, imaging and sensing (through Sony Semiconductor Solutions), film and television (Sony Pictures Entertainment), music (Sony Music Group and Sony Music Entertainment Japan), video games (Sony Interactive Entertainment), and other areas.

The company got its start in 1946 as Tokyo Tsushin Kogyo K.K., founded by Masaru Ibuka and Akio Morita. It changed its name to Sony Corporation in 1958. Originally an electronics firm, it made a name for itself early on with products like the TR-55 transistor radio and the CV-2000 home video tape recorder, playing a notable part in Japan’s post-war economic recovery. After Ibuka retired in the 1970s, Morita served as chairman until 1994, guiding Sony’s growth into a globally recognized brand known for consumer electronics breakthroughs. Key products included the Trinitron color television, the Walkman portable audio player, and the jointly developed compact disc.

Sony moved beyond electronics by buying CBS Records in 1988 and Columbia Pictures Entertainment in 1989. It also entered the home video game console market with the PlayStation’s launch in 1994. In Japan, the company diversified further by setting up a financial services division in 2001, which was spun off into a separate company in September 2025, with Sony keeping a 20% stake. In 2021, the company was renamed Sony Group Corporation as it shifted to a holding company structure, while its electronics business continued under the name Sony Corporation.

By 2020, Sony held 55% of the global image sensor market, making it the largest image sensor manufacturer. It was also the second largest camera maker, a semiconductor sales leader, and the world’s third-largest television manufacturer by sales.

Though not part of a traditional keiretsu, Sony has historical ties to the Sumitomo Mitsui Financial Group, dating back to the 1950s when it relied solely on Mitsui Bank for financing. Sony trades publicly on the Tokyo Stock Exchange (as a component of the Nikkei 225 and TOPIX Core30 indices) and has American depositary receipts on the New York Stock Exchange, where it has been listed since 1961. As of 2021, it ranked 88th on the Fortune Global 500 and 57th on the 2023 Forbes Global 2000 list.

**History**

**Tokyo Tsushin Kogyo**

Sony’s origins trace to the aftermath of World War II. In 1946, Masaru Ibuka opened an electronics shop in a department store building in Tokyo’s Nihonbashi area, the Shirokiya. The venture began with ¥190,000 in capital and eight employees. On 7 May 1946, Akio Morita joined Ibuka to form a company called Tokyo Tsushin Kogyo (Tokyo Telecommunications Engineering Corporation). It built Japan’s first tape recorder, the Type-G. In 1958, the company changed its name to “Sony.”

**Name**

Founders Morita and Ibuka understood that to succeed and grow, their business needed to reach global markets, which meant giving their products a short, easy brand name. They initially considered using their initials, TTK, but dropped the idea because the railway company Tokyo Kyuko was already known as TTK. In Japan, the company sometimes used the syllabic acronym “Totsuko,” but Morita found during a U.S. visit that Americans struggled to pronounce it. Another early attempt, “Tokyo Teletech,” was abandoned after Morita learned an American company already used Teletech as a brand.

The name “Sony” was created by blending two words: the Latin “sonus,” the root of sonic and sound, and “sonny,” a common 1950s American slang term for a young boy. In 1950s Japan, “sonny boys” was a loanword that suggested smart, presentable young men—a self-image Morita and Ibuka shared. The first product to carry the Sony brand was the TR-55 transistor radio in 1955, but the company itself did not adopt the name Sony until January 1958. At the time, it was unusual for a Japanese company to use Roman letters instead of kanji for its name. The change faced opposition: Mitsui, Sony’s main bank, pushed for names like Sony Electronic Industries or Sony Teletech. Morita held firm, not wanting the company name tied to any specific industry. Eventually, both Ibuka and Mitsui Bank’s chairman gave their approval.

**Globalization**

**1950s–2000s**

According to Schiffer, Sony’s TR-63 radio “cracked open the U.S. market and launched the new industry of consumer microelectronics.” By the mid-1950s, American teenagers were buying portable transistor radios in huge numbers, helping the fledgling industry grow from an estimated 100,000 units in 1955 to 5 million by the end of 1968. Sony co-founder Akio Morita established Sony Corporation of America in 1960. During this process, he was struck by how freely employees moved between American companies—something unheard of in Japan at the time. When he returned to Japan, he encouraged experienced, middle-aged workers from other companies to consider joining Sony. The company filled many positions this way, and other Japanese firms followed suit. Sony also played a major role in Japan’s rise as a powerful exporter during the 1960s, 1970s, and 1980s, supplying bomb parts to the U.S. military for use in the Vietnam War. It helped significantly improve American perceptions of “made in Japan” products. Known for its production quality, Sony was able to charge above-market prices.