Top Sustainability consulting firms in the UK 2025

What are the leading consulting firms in the UK for Sustainability services? The top Sustainability consulting firms in the UK ranking presents the region’s most trusted, expert and influential consultancy firms in the domain for the year 2025.

The capabilities of consulting firms is based on the views of executives and consultants active in Sustainability, as well as on assessments of Sustainability capabilities, company reputation, analyst benchmarks, industry recognitions, thought leadership and more (see the methodology for details).

View all rankings: Top consulting firms in the UK 2025.

The top consulting firms in the UK for Sustainability services:

2025 ranking
List view
Over 500+ consulting firms were assessed for the Sustainability ranking in 2025, of which 55 qualify as a top player:

Diamond level

Platinum level

EY
The company profile of EY on Consultancy.uk is currently not activated....
FTI Consulting
The company profile of FTI Consulting on Consultancy.uk is not active....
3Keel
The Company profile of 3Keel on Consultancy.uk is currently not activated....
Anthesis
The Company profile of Anthesis on Consultancy.uk is currently not activated....
SLR Consulting
The company profile of SLR Consulting on Consultancy.uk is currently not activated....
Baringa
The company profile of Baringa is not activated on Consultancy.uk....
Oliver Wyman
Oliver Wyman is a global leader in management consulting. With offices in over 70 cities across 30 countries, we combine deep industry knowledge with specialized expertise in strategy, operations, risk management, and organization transformation. Our more than 7,000 pr...
Kearney
The company profile of Kearney on Consultancy.uk is currently not activated....
PA Consulting
We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our diverse teams of experts combine innovative thinking and breakthrough technologies to progress further...
South Pole
The profile of South Pole on Consultancy.uk is not active....
Guidehouse
The company profile of Guidehouse on Consultancy.uk is currently not activated....
BIP
BIP is the international consultancy for the 21st century with over 5,500 consultants globally daring to make a difference. Operating at the intersection of business and technology BIP design, develop, and deliver sustainable solutions at pace and scale creating greate...
dss+
With over 900 professionals in 40 countries, we are a world-class operations management consulting firm with a purpose of saving lives and creating a sustainable future. From our solid legacy as DuPont Sustainable Solutions, we have evolved and enhanced our capabilitie...
L.E.K. Consulting
We’re L.E.K. Consulting, a global strategy consultancy working with business leaders to seize competitive advantage and amplify growth. Our insights are catalysts that reshape the trajectory of our clients’ businesses, uncovering opportunities and empowering them to ma...
The Carbon Trust
The Carbon Trust does not have an active company profile on Consultancy.uk....
Roland Berger
Roland Berger Strategy Consultants, founded in 1967, is one of the world's leading strategy consultancies. With around 2,700 employees working in 51 offices in 36 countries worldwide, we have successful operations in all major international markets. Roland Berger Strat...

Gold level

IBM Consulting
The company profile of IBM on Consultancy.uk is currently not activated....
Arthur D. Little
The company profile of Arthur D. Little on Consultancy.uk is currently not activated....
Capgemini Invent
Capgemini Invent is Capgemini Group’s innovation, design, and transformation powerhouse, accelerating ideas into prototypes and scalable real-world solutions that help our clients get the future they want. Disruption is everywhere, intensifying the need for businesses ...
BearingPoint
BearingPoint is an independent management and technology consultancy with European roots and a global reach. The company operates in three business units: Consulting, Products, and Capital. Consulting covers the advisory business with a clear focus on selected business...
AFRY Management Consulting
The company profile of AFRY Management Consulting is not active....
Palladium
Palladium does not have an active company profile on Consultancy.uk....
Alvarez & Marsal
Companies, investors and government entities around the world turn to Alvarez & Marsal (A&M) for leadership, action and results. Privately held since its founding in 1983, A&M is a leading global professional services firm that provides advisory, business performance i...
BDO
The Company profile of BDO on Consultancy.uk is currently not activated....
Twentyfifty
The Company profile of Twentyfifty on Consultancy.uk is currently not activated....
Thomson Environmental Consultants
The profile of Thomson Environmental Consultants on Consultancy.uk is not active....
Simply Sustainable
The company profile of Simply Sustainable on Consultancy.uk is currently not activated....
Eight Versa
The company profile of Eight Versa on Consultancy.uk is currently not activated....
Systemiq
The profile of Systemiq on Consultancy.uk is not active....
AlixPartners
The company profile of AlixPartners on Consultancy.uk is currently not activated....
Kroll
The Company profile of Kroll on Consultancy.uk is currently not activated....
Sia
The Company profile of Sia Partners on Consultancy.uk is currently not activated....
AccountAbility
The Company profile of AccountAbility on Consultancy.uk is currently not activated....

Silver level

Bronze level

View all 2025 rankings

About the Top consulting firms ranking

Our ranking sets out to answer one basic question: what are the top consulting firms in the UK?

The consulting industry of the UK is home to hundreds of consulting firms – large, mid-sized, boutique and niche consultancies – serving clients across all industries and segments, and specialised in every conceivable area of expertise. Our guide of top consulting firms showcases the industry’s leading players based on the region’s most extensive database of industry insights.

The ranking consists of top consulting firm lists across 30+ areas of expertise (strategy, management, finance, supply chain, sustainability, etc) and 30+ sectors (financial services, public sector, energy, consumer goods, industry, etc), as well as a number of topic-oriented rankings.