Description Dash Optimization offers Xpress-MP, an optimization component suite for software developers. The product includes model building tools, including libraries and a visual development environment. Dash also offers Xpress-XL, an optimization tool for users of Microsoft's Excel spreadsheet software. Dash has distribution partnerships with Artelys in France and Gamma-F Asia in the Philippines, Hong Kong, Singapore, and Taiwan. The company was founded in 1983 as a partnership between officers Robert Ashford and Robert Daniel, who each own 50% of the company, originally called Dash Associates. Dash Optimization has offices in Japan, the UK, and the US.