The top rating also acknowledges Epson as being "Outstanding" in Sustainable Procurement and highlights its excellent achievement in labor & human rights and for its actions to preserve the environment.
The overall results show a 5% increase on the previous year with a significant score increase in labor & human rights, placing Epson in the top 2% for CSR in its industry.
"Corporate Social Responsibility is at the heart of everything we do at Epson and this excellent achievement in CSR is as important and valuable to our business as financial success," said Minoru Usui, global president of Epson.
"Epson's aim is to be an indispensable company, which means we must create unique, long term value by producing excellent products that exceed our customers' expectations, address societal needs and, importantly, sustain our environment. As a business, we have aligned all our activities to the Sustainable Development Goals of the United Nations and we are committed, above all else, to creating a better and more sustainable future."