kmG Auto Assist

kmG Auto Assist Co., Ltd. (株式会社kmGオートアシスト) is a Japanese automotive maintenance company and a member of the Kokusai Motorcars (km) Group, one of Tokyo's major taxi and hire-car operators. The company was established on 1 October 2020, when Kokusai Motorcars spun off its maintenance division into a separate legal entity. Its core mission is to support transport operators — chiefly the hire, taxi and bus companies within and affiliated with the km Group — by handling vehicle inspections (shaken), periodic servicing, day-to-day maintenance, body repair and painting, and the supply of vehicle equipment and consumables. The company operates a network of service locations across Tokyo and Yokohama. As of its corporate profile, it runs ten service bases, including designated (指定) inspection garages in Shinonome, Haneda, Taito, Itabashi, Mitaka, Setagaya and Omori, and certified (認証) garages in Shinagawa, Yokohama and Edogawa. It also operates four LPG autogas stations — Setagaya, Haneda, Asakusa and Toyotama — serving LPG-powered vehicles, a fuel type widely used by Japanese taxis. Its head office functions are located in the km Akasaka Building in Minato, Tokyo. Beyond maintenance, kmG Auto Assist develops and sells products aimed specifically at taxi operators. Its best-known offering is the "Miracle Mirror" (ミラクルミラー), a large fender mirror designed for the Toyota JPN Taxi, which it began selling to the general market in March 2023. Other products include the "Miracle Guard L" droplet-blocking anti-crime partition, the "Miracle Kirakira" wheel-cap refurbishing service for the JPN Taxi, and km Hassepper Water, a sterilising water. The company also runs a members-only e-commerce site for taxi supplies, an insurance agency business, and a wrapping/printing operation. As a group company, kmG Auto Assist is not independently listed; it is a subsidiary of Kokusai Motorcars Co., Ltd. Its representative director and president is Yukio Hanasaka. The company reported capital of 10 million yen and 136 employees as of March 2025. Its positioning is that of a hospitality-driven, transport-operator-focused service company — "Hospitality Driving km" — combining maintenance, parts, fuel, insurance and supplies under one roof for professional passenger-transport fleets.

kmG Auto Assist was established on 1 October 2020, when Kokusai Motorcars Co., Ltd. (km Group) spun off its vehicle maintenance division into a separate company. The new entity inherited the group's in-house maintenance functions and was tasked with serving not only the km Group's own hire, taxi and bus fleets but also affiliated transport operators. In its first full year, the company expanded through mergers and new services. On 1 February 2021 it absorbed Techno Motors (テクノモータース). On 30 April 2021 it launched "Miracle Guard L," a droplet-blocking anti-crime partition. On 13 May 2021 it opened a taxi meter inspection facility at its Taito Factory. On 1 July 2021 it merged with km Leasing (ケイエムリーシング), acquiring an insurance agency business. In 2022 the company continued to grow. On 26 May 2022 it began field trials of the "Miracle Mirror," a large fender mirror designed for the Toyota JPN Taxi, across vehicles belonging to km Group companies. On 1 October 2022 it took over the Asakusa and Toyotama autogas stations from Tokyo Autogas (a company in the Iwatani group, under EneLife). On 11 October 2022 it acquired the maintenance business of Edogawa Sogyo (the Oinuma group), a business partner of Kokusai Motorcars, and established the Edogawa Factory. In 2023 the company brought its flagship taxi products to the open market. On 23 March 2023 it began general sales of the JPN Taxi "Miracle Mirror." On 14 June 2023 it launched "Miracle Kirakira," a wheel-cap refurbishing service for the JPN Taxi. The company also continued to invest in its LPG station facilities, renewing a rest area in March 2024 and adding a women-only restroom in December 2023. In 2025 it announced installation work for an Asakusa Hydrogen Station, signalling a move toward next-generation fuel infrastructure. As of March 2025 the company reported 136 employees and capital of 10 million yen. It operates ten service locations across Tokyo and Yokohama, including seven designated inspection garages and three certified garages, plus four LPG autogas stations. Its representative director and president is Yukio Hanasaka.

• Company established as a spin-off of Kokusai Motorcars' maintenance division.

• Merged with Techno Motors.

• Launched "Miracle Guard L" droplet-blocking anti-crime partition.

• Opened taxi meter inspection facility at Taito Factory.

• Merged with km Leasing, acquiring insurance agency business.

• Began field trials of "Miracle Mirror" for Toyota JPN Taxi.

• Took over Asakusa and Toyotama autogas stations from Tokyo Autogas.

• Acquired maintenance business of Edogawa Sogyo; established Edogawa Factory.

• Began general sales of JPN Taxi "Miracle Mirror."

• Launched "Miracle Kirakira" wheel-cap refurbishing service.

• Installed women-only restroom at LPG stand.

• Renewed LPG stand rest area.

• Four employees received Chairman's Award from Tokyo LP Gas Stand Association.

• Announced Asakusa Hydrogen Station installation work.

A transport-operator-focused maintenance and support company within the km Group, offering integrated vehicle maintenance, fuel, supplies, insurance and equipment services under the motto "Hospitality Driving km".

• Miracle Mirror

  Large fender mirror exclusively for Toyota JPN Taxi; began general sales March 2023.

• Miracle Guard L

  Droplet-blocking anti-crime partition launched April 2021.

• Miracle Kirakira

  Wheel-cap refurbishing service for Toyota JPN Taxi, launched June 2023.

• km Hassepper Water

  Sterilising water made from diluted sodium hypochlorite, hydrochloric acid and water.

1. 1kmGオートアシスト 公式サイトkmg-aa.tokyo
2. 2会社概要 - 株式会社kmGオートアシストkmg-aa.tokyo
3. 3車検・整備・板金塗装東京・横浜10ヶ所の整備工場・サービス拠点kmg-aa.tokyo
4. 4KmGオートアシスト - Wikipediaja.wikipedia.org
5. 5kmG Auto Assist - Wikidatawikidata.org