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M&A Due Diligence Assessments

Delivering full M&A due diligence assessments across the full range of environmental, social and governance (ESG) and EHS issues

risk horizon

RiskHorizon, designed by Anthesis, is a purpose made tool for use in the environmental due diligence (EDD) process. It is specifically aimed at helping legal advisors, investors, acquirers, finance professionals and deal makers identify the material ESG risks and opportunities at an early stage of the deal cycle and take full account of the relevant issues throughout the transaction life cycle.

In an increasingly complex and regulated world, where sustainability issues present both risks and opportunities, transactional due diligence needs a deal-specific approach that addresses both conventional compliance and legacy liabilities, as well as sustainability performance and preparedness for the future.

Our M&A Due Diligence services

We deliver full M&A due diligence assessments for both vendors and acquirers. Our offer spans from the traditional environmental, health and safety (EHS) risks such as contaminated land, across the full range of environmental, social and governance (ESG) issues.

Our experience is global, covering nearly all commercial and industrial sectors from software to oil and gas, and ranges from advising on small single-site, bolt-on transactions to complex multi-site, multi-jurisdictional businesses.

We understand the differing approaches required depending on the deal structure, for instance the nuances of how to interact with the other side depending on whether the transaction is exclusive or a competitive auction.

Our advice is always commercially astute, seeking to contextualise the issues identified with narrative on the likelihood of the issue arising, timescales and the potential cost implications. Where an issue presents a potential hurdle to the smooth completion of the transaction, we will always seek to identify solutions.

Our advice is also always backed by appropriate levels of professional indemnity insurance cover, disclosure and reliance arrangements.

How we carry out your M&A due diligence assessments

  • Faster and more comprehensive early phase ESG screening assessments, combining our extensive professional experience and the Anthesis designed RiskHorizon software solution.
  • Complete transactional deal support, both buy and sell side, from data room reviews, desk based analysis and Q&A to full on-site EHS audits and investigations.
  • Using sustainability data where required, such as Sustainanalytics, CSR Hub, CDP and DJSI, to derive deeper insights.
  • Real focus on identifying opportunity areas, assessing their feasibility, cost and payback.
  • Using Tableau software to enhance data visualisation.
  • Planning post-acquisition integration, liability risk abatement and ESG improvement key performance indicators (KPIs) and target setting.

We help clients determine an ESG improvement strategy after assessing their M&A due diligence.

Find our more about our ESG improvement strategies


I have worked with Anthesis for many years. They have a depth of ESG understanding and expertise, allowing real analysis and advice on the emerging issues that are becoming increasingly material to our clients. What sets them apart is their willingness and ability to apply this, together with technology solutions, to enhance the quality and speed of their reporting.

Paul Davies
Partner, Latham & Watkins
Latham & Watkins

We wanted the ESG screen as we were keen to understand the definition of ESG and to see the criteria you would be using. We were also interested to see how others would view us through this lens. The Anthesis screen provided us a with a “mirror”. The value to Neste was that it confirmed we are on a right track to addressing ESG issues. It also helped us to identify some potential improvement opportunities, several of which we are working on, and others that warrant further evaluation.

Employee, Neste
Neste Corporation

The supply chain report produced by Anthesis was a key element of the success of the initial public offering (IPO) of In The Style. The report ensured investor confidence in ITS and set out a clear roadmap to guide progress.


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Anthesis has offices in the U.S., Canada, UK, France, the Netherlands, Belgium, South Africa, Ireland, Italy, Germany, Sweden, Spain, Portugal, Andorra, Finland, Colombia, Brazil, China, the Philippines and the Middle East.