Sep. 2004, awarded by Okayama local authority for Sigma’s technology as Excellent skill.
Mar. 2006, received Technological Award from Chugoku Shikoku Branch of The Japan Society for Precision Engineering.
Sep. 2007, certified by ISO9001.
Apr. 2009, selected in Chugoku area as one of "300 medium and smaller enterprises active at manufacturing" by Ministry of Economy, Trade and Industry.
Mar. 2014, Technology Contribution Prize is awarded from The Japan Society of Mechanical Engineers(JSME).
May. 2012, Sigma’s engineer has been awarded from Japan Testing machinery Association.