Danbury-based Praxair has been named one of the best U-S employers for women by Forbes. The list was compiled based on the results of an independent survey of 40,000 people across the country, working at companies with at least 1,000 employees. Employees were asked to provide anonymous feedback and to rate their organizations on criteria such as working conditions, diversity and how likely they would be to recommend their employer to others. Forbes then asked female respondents to rate their employers on factors such as parental leave, discrimination and pay equity. The final list includes the 300 employers that both scored the highest on the survey and have the most gender diverse boards and executive ranks.