At this Big 4 firm, career development is a big focus. Each employee is assigned a counselor, coupled with built-in career development plans and "counseling families," which are small discussion groups led by EY partners and other leaders.

The company is also big on experiences beyond the office. EY lets employees volunteer with entrepreneurs in emerging markets and even spend up to 6 months in low-income countries to help job-creating small businesses solve local problems.

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