February 1978
Used car distribution complex established as Osaka Nanko Used Car Cooperative
1st Manual Auction started
October 1984
Completed construction of an auction venue at the current location.
Implemented a computerized POS auction system.
February 1992
The current office building was completed.
April 1998
Established a fully visual 2-lane auction
January 2000
Auction division business name changed from "Osaka Nanko Auto Auction (ONAA)" to "Bay Auction"
and proprietary network renamed to "Bay Net"
December 2000
Partnership with Auto Server Co., Ltd. (ASNET connection started)
April 2001
Partnership with Aucnet Co., Ltd. (AUCNET Live connection started)
November 2001
Bay Net real-time bidding system established
June 2002
Partnership with i-Auc Co., Ltd. (i-Auc connection started)
September 2002
Nanko Car City Co., Ltd. changed its name to Bay Auction Co., Ltd.
Partnership with JU Corporation Co., Ltd. (JU Bidding Net connection started)
October 2002
Partnership with USS Co., Ltd.
(GLOBENETWORK connection started)
April 2005
Bay Auction Co., Ltd. acquired the business rights for the auction from the cooperative
Multi-functional POS terminals with Bay Net installed in all seats
August 2005
Started mutual internet membership with Arai Shoji Co., Ltd.
December 2005
Partnership with Sigma Networks Co., Ltd.
(Gensha Kaijo.NET connection started)
January 2007
Began common membership with Arai Shoji Co., Ltd.
March 2008
Partnership with Car Quest Co., Ltd. (CIS Information Service connection started)
March 2009
Partnership with Toyota U-Zec Co., Ltd. (T-web connection started)
November 2009
Began mutual membership with Toyota U-Zec Co., Ltd.
January 2010
Began mutual membership with CAA Co., Ltd.
May 2010
Full video 4-lane auction construction
February 2018
Acquired new yard "North Yard" in Nanko-Minami, Suminoe-ku, Osaka City
May 2019
Introduced Tablet Inspection System
February 2021
First in the AA industry: Started "360-degree video shooting" of vehicle interior and exterior
August 2022
Implemented treasury stock retirement; Capital reduced to 95.8 million yen
July 2025
BAY-OSAKA MACHINE AA Corner started











