Gary Grantham

Gary Grantham

Gary Grantham, BSc, CIWEM, CIWM is a principal consultant based in the United Kingdom.  He brings 30 years of experience in environmental consulting with a focus on environmental liability assessment and management. He has particular experience in the waste and energy, chemical, food and drink and real estate sectors. Gary has been involved with the CAT Alliance since its inception over 15 years ago, and has advised on numerous national and international transactions, managing and working as part of global project teams.


Office: +44 (0) 845 0550 575
Mobile:+44 (0) 781 784 8029
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Selected references

Innospec Speciality Chemicals (formerly Associated Octel): acquisition due diligence for sites in UK, France, Germany, Sweden and USA. Evaluation of financial provisions for operational and closed facilities.

Vion Foods: technical and strategic support during the acquisition of Grampian Foods farms, slaughterhouses and food processing business throughout UK and Asia, and vendor due diligence in support of the sale of their food additives business to Darling International.

Brambles Industries (Australia): vendor due diligence for £650m sale of UK Cleanaway waste management business to Veolia. Portfolio included 4 operational and 65 legacy landfills, waste incinerator, waste transfer stations and associated assets.

ECI Partners: vendor and acquisition due diligence associated with sale and purchase of a number of industrial and retail portfolios, including Racal Acoustics, Bargain Booze and retail food outlets Café Rouge and Bella Pasta.

ICI/Uniqema: Vendor due diligence of Uniqema business comprising chemical processing sites in 14 countries and 3 continents.

Industrious Asset Management: due diligence in support of the acquisition of 64 industrial and commercial trading estates. Follow up work included development of system to track and manage on-going liabilities.

Viridis Capital Partners: technical and environmental due diligence during acquisition of gas utilisation assets from EnerG, including verification of gas yield predictions.

Environmental Protection Agency, Ireland: Review and verification of financial provisions associated with licensed industrial and waste businesses across Ireland, including detailed assessment of liabilities at selected landfills, timber treatment and manufacturing sites and determination of liabilities at the abandoned 30 ha Kerdiffstown landfill and waste processing facility.

Other clients where transaction support has been provided

Amcol, Amcor, BP, Bridgpoint Capital, Centrica, Ciba Chemicals, Desch Plantpak, GE Real Estate, Icopal, Macquarie, Merseyside Waste Disposal Authority, Rothschild, Sullivan Street Partners, Teesland/IOG, Tata Steel, Valad.

About Us

CAT Alliance Ltd. is an international business consultancy, supporting global transactions and other corporate assessments of environmental, engineering, and other risks services from Europe, the Americas, and Asia. Meeting the challenges of business in the current financial climate requires a responsive and technically grounded approach focused on the needs of your organization.

Contact Information

The following individuals represent the CAT Alliance Ltd. Management Group.  Please contact any one of them for more information about your project:

Mike Berman
1220 19th Street
Suite 210
Washington, DC 20036
+1 202 370 4348

Sebastian Katsch
Richard-Löchel-Straße 9
47441 Moers
+49 (28) 41 14 90 21

Des Kelly
Bevis Marks House
24 Bevis Marks
London EC3A 7JB
United Kingdom
+44 0203 725 8128

Søren Viegand
Parallelvej 2
DK-2800 Kongens Lyngby
+45 56 40 22 69