Recently scored: Mastercard Incorporated, Visa Inc., Vinted, Dentsu
Sector Rankings

Most Sustainable Consulting / Professional Services Companies 2026

8 Consulting / Professional Services companies ranked 0–100 on real environmental impact using SINK's open, physics-first formula.

8
Companies ranked
57
Sector average
62
Sector best (PricewaterhouseCoopers (PwC))
Full ranking
1
🏢PricewaterhouseCoopers (PwC)Leading practice
62
2
🏢DeloitteMaking progress
59
3
💼AccentureMaking progress
59
4
🏢Ernst & Young Global Limited (EY)Making progress
58
5
🌍Bioregional DevelopmentMaking progress
57
6
💻International Business Machines CorporationMaking progress
56
7
🏔️Protect Our WintersMaking progress
52
8
💼McKinsey & CompanyMaking progress
52
Frequently asked

Consulting / Professional Services sustainability, answered.

Which Consulting / Professional Services company is the most sustainable?

PricewaterhouseCoopers (PwC) is the highest-scoring Consulting / Professional Services company on SINK with a score of 62/100 (Leading practice).

What is the average sustainability score for Consulting / Professional Services companies?

The average SINK score across 8 Consulting / Professional Services companies is 57/100. The global average across all scored companies is 38/100.

How does SINK rate Consulting / Professional Services companies?

SINK scores Consulting / Professional Services companies on 10 questions using public data: Scope 1/2/3 carbon footprint, energy source, nature and biodiversity, resource use, water impact, emissions trajectory, science-based targets, transparency, and major controversies. The formula adjusts for the industry's inherent environmental footprint and company scale.

Which Consulting / Professional Services company has the worst sustainability score?

McKinsey & Company has the lowest SINK score among Consulting / Professional Services companies at 52/100 (Making progress).

Compare across all sectors in the full leaderboard.

View full leaderboard →