First year of modern business.

Predecessor of Koizumi Sanyo Corporation established.

Name changed to Koizumi Sangyo Corporation Operations. Began manufacturing and wholesale of electric, gas, and kerosene appliances.

Full-scale entry into the lighting market.

Opened showroom for “Hikari” brand lighting fixtures, allowing customers to experience both design and quality beyond catalogue exploration.

Launched “ilum”, a series of decorative lighting fixtures imported from Europe.

Established in-house design group, Lighting Creative Room (LCR).

Launched “Light Caravan Mobile Showroom”.

Started Koizumi International Lighting Design Competition for Students, which ran for over 25 years and attracted more than 33,000 students from 42 countries.

Opened showroom “Koizumi Lighting Theatre / IZM”, featuring product displays and laboratories where visitors could experience the effects and ambiance of light.

Opened Koizumi Technology Development Center. Established Koizumi Lighting Corporation, directly managing lighting fixture manufacturing.

Launched a series of lighting fixtures with unique distribution-controlled designs aimed at creating comfortable living environments with harmonious lighting.

Opened office in Dongguan, China.

Achieved ISO 9001 and ISO 14001 certification.

Established Koizumi Sangyo (HK) Co., Ltd.

Launched “D-Action”, a collaborative project series with established designers worldwide.

Opened and renewed showrooms in Osaka, Nagoya and Fukuoka.
Opened new showroom space in Tokyo “OBAL (Organize Business with Advanced Lighting)”.

Launched LED Lighting fixture brand “cledy”

Established Dongguan Koizumi Lighting Corp.

Opened new showroom in Osaka, “KLOS”.

Established Koizumi Lighting Singapore Pte. Ltd.

Opening of Koizumi Lighting Technology R&D Centre in Osaka, Japan

Modernisation of Dongguan Factory.