Earlier this year, CareerBliss created a list of the 50 happiest companies in America. To determine which companies made the grade, CareerBliss reviewed thousands of company reviews from visitors to its website--grading such things as work-life balance, relationship with boss and co-workers, work environment, compensation, growth opportunities, company culture, and more.

Says Heidi Golledge, CareerBliss CEO and chief happiness officer, "This year we saw a surge of STEM-related companies [Science, Technology, Engineering, and Math] ranking in the top 10. As we evaluate the factors that impact happiness, such as growth opportunity and company culture, it is also important to understand what type of industries are creating happier work environments overall."

Expert Market reviewed these findings and noticed some interesting trends:

• 26 of the 50 happiest companies in the U.S. are based in California
• 14 percent of the 50 happiest companies have female CEOs
• The average salary for those working in the 50 happiest companies is $67,200

Here, then, are the 50 happiest companies in the U.S. Did your company make the list?

1. Johnson & Johnson

2. Broadcom

3. Chevron

4. Texas Instruments

5. McAfee

6. Google

7. Intuit

8. Adobe

9. Amgen

10. SAP AG

11. Fidelity Investments

12. Qualcomm

13. Advanced Micro Devices

14. FedEx

15. Visa

16. Farmers Insurance

17. Intel

18. DirecTV

19. Wellpoint (Anthem)

20. Bank of America

21. Microsoft

22. Medtronic

23. Accenture

24. Flextronics

25. Chrysler

26. PepsiCo

27. NetApp

28. Honeywell

29. Nationwide Insurance

30. NBCUniversal

31. Sabre Holdings

32. Thomson Reuters

33. Walt Disney Company

34. Abbott Laboratories

35. Union Bank

36. Yahoo

37. Citibank

38. Nokia

39. Kaiser Permanente

40. Boeing

41. Cisco Systems

42. Ford Motor

43. Parker Hannifin

44. Juniper Networks

45. Caterpillar

46. General Dynamics

47. Oracle

48. eBay

49. PayPal

50. Apple