MOS Burger

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MOS Food Services, Inc.
Public KK
Traded as TYO: 8153
Industry Foodservice
Founded Tokyo, Japan (July 21, 1972 (1972-07-21))
Founder Atsushi Sakurada (櫻田 厚 Sakurada Atsushi?)
Headquarters ThinkPark Tower
2-1-1 Osaki, Shinagawa-ku, Tokyo, 141-6029 Japan
Key people
Atsushi Sakurada, (CEO and President)

$ 663 million (FY 2012)

(¥ 62.371 billion) (FY 2012)

$ 16 million (FY 2012)

(¥ 1.52 billion) (FY 2012)
Number of employees
1,166 (as of March 2013)
Subsidiaries 9
Website Official website
Footnotes / references

MOS Food Services, Inc. (株式会社モスフードサービス Kabushiki-kaisha Mosu Fūdo Sābisu?), doing business as MOS Burger (モスバーガー Mosu bāgā?) (Japanese, "MOS" [mosɯ̥] or "Mountain Ocean Sun"[3]), is a fast-food restaurant chain (fast-casual) that originated in Japan.

It is now the second-largest fast-food franchise in Japan after McDonald's Japan, and owns numerous overseas outlets over East Asia, including Taiwan, Singapore, Hong Kong, Thailand, Indonesia, Australia, South Korea and, until 2005, Hawaii. It is also the name of the standard hamburger offered by the restaurant, being its first product when it opened in 1972.

Its headquarters are in the ThinkPark Tower in Ōsaki, Shinagawa, Tokyo.[1] At one time its headquarters were in Shinjuku, Tokyo.[4][5]

As of February 2014 the publicly traded company runs 1,730 MOS BURGER and several AEN, Chef's V and GREEN GRILL stores. One slogan used within its stores is "Japanese Fine Burger and Coffee".[1]

In April 2011, MOS Burger opened its first store at Sunnybank Plaza, in Brisbane, Queensland Australia. As of May 2016, the company had six stores in Australia.[6]

Unique burgers[edit]

Mos Rice Burger

MOS Rice Burger[edit]

The MOS Rice Burger uses a bun made of rice mixed with barley and millet.

Rice was first used as a bun in 1987, when the restaurant served the Tsukune Rice Burger, filled with ground chicken and daikon, and seasoned with soy sauce. The Tsukune Rice Burger is no longer on the menu in Japan.

The MOS Rice Burgers currently include the 'kaisen kakiage rice burger' ('fresh seafood shrimp fritter rice burger'), the 'kinpira rice burger' ('fried burdock and carrot rice burger'), and the 'buta shōga yaki rice burger' ('grilled pork and ginger rice burger'). There used to be a 'yakiniku rice burger' ('grilled strips of beef rice burger') (available in Hong Kong, Singapore, Taiwan and Brisbane Australia branches).

The MOS Rice Burger has been imitated by the Taiwanese division of McDonalds,[7] where the rice bun was pan-seared, but it remains a MOS-exclusive item in Japan and other markets.

Takumi Burger[edit]

In 2003, MOS Burger introduced an ultra-premium Takumi Burger (meaning artisan taste) series, which was expanded further in 2004.[8] The 'Nippon's Burger Takumi' hamburger was made with Tasmanian beef and ten toppings, including sliced avocado, grated wasabi, and other gourmet, seasonal ingredients. It was available for a limited time and cost 1,000 yen (9.14 euros or 11.72 USD at the time), making it one of the most expensive burgers offered by a fast-food chain. The 'Nippon's Burger Takumi Lettuce' was added in 2004, with lettuce instead of buns to sandwich the hamburger.[9]

Origin of the Company[edit]

The company name is styled in all caps: MOS Burger. Currently the company website explains that the origin of the name is the phrase "Mountain, Ocean, Sun." However, originally the company was a spin-off of Atsushi Sakurada's previous company, Merchandising Organizing System.[10] Later the company began to use playful English phrases in point-of-purchase marketing materials to explain the name, including "MOSt delicious burger," finally settling on "Mountain, Ocean, Sun." Earlier rumors in Japan speculated that the name came from the initials of three founders, two of which were bought out and written out of the company's history (Messrs. "M" and "O"), but this appears not to be the case with MOS Burger, although it may be that Merchandising Organizing System was itself a backronym.

Mr. Sakurada worked in Los Angeles at an investment company in the early 1960s, and during that time he frequented the iconic Los Angeles chili burger chain, Tommy's.[11] Wanting to strike out on his own after returning to Japan he decided to adapt the cook-to-order hamburger concept used by Tommy's, down to the meat sauce, albeit slightly less greasy and messy than the original. He also developed the MOS rice burger as an alternative to the hamburger, although its prominence on the menu has decreased over the years.


Former MOS headquarters, Shinjuku, Tokyo 
ThinkPark Tower, the headquarters of MOS Burger 
MOS Burger Suminodo shop 
MOS Burger in Singapore 
A MOS Teriyaki Burger 


  1. ^ a b c "Corporate Profile". Retrieved March 29, 2014. 
  2. ^ "Financial Statements". Retrieved March 29, 2014. 
  3. ^
  4. ^ "Company Outline". April 17, 2001. Archived from the original on April 17, 2001. Retrieved January 6, 2011. 
  5. ^ "Map in Japanese". Archived from the original on December 5, 2000. Retrieved March 29, 2014. 
  6. ^ "Mos Burger Website - Australia Store Information". MOS Food Services, Inc. Retrieved May 13, 2016. 
  7. ^ Taipei Times
  8. ^ Uranaka, Taiga (July 24, 2003). "Mos to woo consumers with higher prices". The Japan Times (English version, cached). Retrieved March 29, 2013. 
  9. ^ "Mos Food Services - Interview with the CEO" (PDF). Mos Food Services. May 1, 2004. Retrieved March 29, 2013. 
  10. ^ "モスバーガーの「モス」の由来は何ですか?". Yahoo!知恵袋 (in Japanese). Retrieved 2016-08-30. 
  11. ^ "About MOS :: Origins". Retrieved 2016-08-30. 

External links[edit]