What does Acuity, a nationally recognized company specializingin property and casualty insurance, with $1 billion in annualrevenue have in common with Google, Wegman’s Food Markets andGenentech? Its employees rated it as one of the best companies towork for, earning it the number three spot on the 2015 list of100 companies, just behind Google (No. 1) and the BostonConsulting Group (No. 2).

This is Fortune’s 18th year of partnering with Great Place to Work to conduct the survey. Accordingto Fortune, Google ranks No.1 for the sixth time, and 16 newcompanies make impressive debuts, including Acuity (No. 3), Twitter(No. 24), and Riot Games (No. 13).

According to Great Place to Work, Acuity’s employees describethe company as “generous.” The employees use the word to describethe company’s charitable endeavors as well as its employeebenefits. A look at the benefits shows a company committed toemployees: no limit on tuition reimbursement, no cap on paid sickdays for full time employees, and a 401(k) plan with c companycontribution of 8% of pay every quarter. All this plus a “fun” workenvironment results in full-time turnover of only 1%.