Sigma AB was founded by Swedish entrepreneur Dan Olofsson in 1986 as a technical consultancy company, and was introduced on the Stockholm Stock Exchange in 1997. The company is currently listed on the Small Cap list of the Stockholm Stock Exchange. The Sigma Group has 1,600 employees in 11 countries and its turnover in 2009 was 130 million euro.
The company won the prize of Dataföreningens Diamant for being the IT company with Best Understanding of Customer's Needs. They support the South Africa based Star for Life project, aimed at preventing the spread of hiv/aids. 
- Sigma AB Facts and figures about the Sigma Group, accessed on February 12, 2014
- Sigma: About Sigma: History, accessed on January 16, 2010
- Sigma AB
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