This consulting firm is all about getting right to high impact work as soon as an employee joins the company. But it's also about doing meaningful work as a team, according to Matt Krentz, global people team chairman at BCG.

"People come in and not only see they can get involved in work that's impactful, but they feel they're around people who want to help them grow," he said. "They feel they can really jumpstart their career as a result."

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