3M Japan Ltd.

All Nippon Airways Co., Ltd.

Atré Co., Ltd.

Bandai Namco Entertainment Inc.

Canon Medical Systems Corporation

Deloitte Tohmatsu Consulting Co., Ltd.

DeNa Co., Ltd.

East Nippon Expressway Co., Ltd.

Ericsson Japan

Ernst & Young ShinNihon LLC

Fujitsu Ltd.

Google Japan

Gulliver International Co., Ltd.

Hermes Japon

Hitachi Systems

KDDI Corporation

Lawson, Inc.

Maruha Nichiro Co., Ltd.

Milbon Co., Ltd.

Mitsubishi Denki Building Techno Service Co., Ltd.

NEC Nexsolutions (Labor Union)

NHK Spring Co., Ltd.

Nissan Motor Co., Ltd.

Nissei Computer Corporation

Nitto Kasei Corporation

Ogilvy & Mather Japan Group

Pacific Consultants Co., Ltd.

RECRUIT Co., Ltd. N. Kanto Marketing

Samsung Japan

Sendai Girls' Pro Wrestling

Seven Eleven Japan

Shiseido Co., Ltd. (Labor Union)

SONY MUSIC Entertainment

Sumitomo Corporation (Labor Union)

Sumitomo Mitsui Trust Bank, Ltd. Labor Union

Sumitomo Rubber Industries, Ltd.

Sumitomo Wiring Systems Co., Ltd.

Suntory Beverage Solution Limited

Tama Home

TIPNESS Limited

UUUM Co., Ltd.

Venture Bank Co., Ltd.