National Instruments could not be immediately reached to comment on the ranking. The Austin, Texas-based company, however, does provide a dedicated training professional within each major business function, who works with supervisors and employees to drive development opportunities and career satisfaction, according to the company's website.
Meanwhile, Yahoo, at number 16, made the list for the first time. Yahoo CEO Marissa Mayer made headlines last year with a change in policy that prevented employees from working from home. But maternity and paternity benefits were recently extended at Yahoo to give mothers four months of paid leave and fathers two months.
Technology's growing ability to keep people connected 24/7 is making it tougher to maintain a healthy work-life balance, a Glassdoor spokeswoman said.
The company's data support that argument -- the average work-life balance rating on the site has dropped from 3.5 in 2009, to a 3.4 in 2011, to a 3.2 thus far in 2013, the spokeswoman said.
Technology giants Apple, Google and Facebook did not make the list.
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