Adults working full-time in the United States spend about a third of their waking life at work — and often much more. Because work has such a central role in our lives, job satisfaction is crucial to our well-being. And given the ability to choose, many of us would prefer to work in a place that offers satisfying work, favorable conditions, and generous compensation.

Job satisfaction is contingent on a multitude of factors — quantifiable and otherwise. In addition to the nature of the job itself, co-workers, bosses, salary, benefits, and other such factors can greatly boost or detract from job satisfaction. Many of these factors depend on the company and how it treats its employees.

Based on employee reviews posted on Glassdoor, 24/7 Wall St. identified the best large companies to work for. Out of a universe of hundreds, only 34 sufficiently large companies received a score of 4 out of 5 stars or higher.

Click here to see America’s best companies to work for.
Click here to see detailed findings and methodology.