McKinsey ranked as the top firm in 8 of Vault's 15 category. This dominance extends to Energy Consulting, 37.6% of consultants surveyed cited McKinsey among the best in the field. The Top 10 fielded the same companies, though Deloitte leapfrogged to 4th with a 5-point improvement. IBM lost the most ground, falling from 7th to 9th overall.