OptoSigma Southeast Asia Pte Ltd

83 Science Park Drive, #02-01, The Curie, Singapore 118258
Email: sales@optosigma-sea.com
Phone:  (65) 6909 9318    &    (65) 6909 9330
Mobile : (65) 92323 999

Sigma Koki Co. Ltd. (Headquarter)

1-19-9,  Midori, Sumida-ku,Tokyo, 130-0021, JAPAN
Email: international@sigma-koki.com
Phone: (81) 3 5638 8228
Website : https://www.global-optosigma.com/en_jp/

OptoSigma Europe S.A.S

6 Avenue des Andes, 91940 Les Ulis, Essonne, FRANCE
Email: sales@optosigma-europe.com
Phone: (33) 1 6918 1700
Website: https://europe.optosigma.com/

OptoSigma Corporation (US)

3210 S.Croddy Way, Santa Ana,California 92704 USA
Email: sales@optosigma.com
Phone: (1) 949 851 5881
Website: https://america.optosigma.com/