1. Facebook

One reviewer, an engineer, loves the "intense but rewarding" nature of the work at Facebook, as well as the highly collaborative environment. Another writes: "The workplace is full of energy; it keeps you on your toes. The personnel are all well experienced and extremely capable. The management is firm but helpful. It is also imperative to work together; teamwork is paramount."

5. Costco Wholesale

"They pay their employees well above the national rate by way of comparison," one reviewer writes. "Costco believes that employees are the most important assets in the company. The management staff truly believe in leading from the front and do a great job of instilling ownership and confidence into every employee. Work and life balance is not an issue with this company at all. Health insurance and holiday benefits are second to none."

Another reviewer writes that the most enjoyable thing about working for the company is "the way that they take care of their employees with salary and yearly bonuses."

4. Delta

Employees at Delta praise the "great group of people, supervisors, as well as managers" who make sure the employees are treated with respect. A flight attendant who worked for eight years at Delta describes being surrounded by hardworking and fun people and said the variety of destinations flown made for a wonderful experience.

"Management had an open-door policy, and there was a lot of transparency," the reviewer writes. "Profit-sharing happened when the years were good, and I felt the company went out of its way to be generous to employees."

3. Salesforce

"It lives up to the hype of being a top place to work," writes one employee. "A great mix of fast paced, challenging projects and smart people along with a cool, fun culture. You are allowed to have a voice and an opinion regardless of title or rank, and despite the crazy work schedule, the 'fun' vibe balances things out." Another reviewer writes, "The company is also committed to providing employees six days a year to volunteer in our communities and around the globe, which makes it a very fulfilling job all around."

2. Southwest Airlines

One employee praises the "wonderful management, awesome coworkers, and excellent benefits," adding that Southwest "encourages individuality" and that there are "many options for advancement." Another reviewer highlights the "great team collaboration" and praises the environment as "productive," "interesting" and "fun."

1. Facebook

One reviewer, an engineer, loves the "intense but rewarding" nature of the work at Facebook, as well as the highly collaborative environment. Another writes: "The workplace is full of energy; it keeps you on your toes. The personnel are all well experienced and extremely capable. The management is firm but helpful. It is also imperative to work together; teamwork is paramount."