Here are the top environmental and sustainability consulting firms. Environmental Analyst lays out the top firms according to revenues and Verdantix ranks firms based on the results of a survey conducted with leading companies.
Top Revenues (Environmental Analyst)
According to Environmental Analyst, the top ten firms ranked in terms of gross global EC revenues are: CH2M Hill, Tetra Tech Inc, URS Corporation, Golder Associates, AECOM, Environmental Resources Management (ERM), Arcadis, AMEC Environment & Infrastructure, MWH Global and Cardno. The next twelve are: Grontmij NV, RPS Group, SKM Consulting, ENVIRON, WorleyParsons, WSP Environment and Energy/GENIVAR, Parsons Brinckerhoff, ICF International, Mott MacDonald, ATKINS, SLR and Coffey International.
Top Ranked by Survey (Verdantix)
As reviewed in a Verdantix survey, Ernst & Young is the best sustainability consulting company as rated by other companies followed by KPMG, Deloitte and PricewaterhouseCoopers. Microsoft is the leader in the sustainability management software category, followed by SAP, Oracle and IBM. KPMG achieved the highest preference score in the sustainability assurance market followed by Ernst & Young and Bureau Veritas. Accenture was tops in the management consulting firms category followed by McKinsey and Bain. The Global Reporting Initiative was the leader among the non-profits followed by the Carbon Disclosure Project, the World Wildlife Fund (WWF) and the UN Environment Program.