Headquarters: Boston
Billable Consultants: 10,500 (total employees)
Type of Consulting Service: Focus on Strategy, but Multi-Service
Client Industries: Virtually all
It's two years running for The Boston Consulting Group as the No. 1 firm in Consulting's annual Best Firms to Work For ranking. The top-dog ranking continues a unprecedented run of success for BCG—It's the only firm to appear on the list all 15 years since the survey began back in 2001. And if that wasn't extraordinary enough, BCG has never been ranked outside of the Top 5.