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At DunhamTrimmer LLC, we focus exclusively on the global biological and natural product plant protection and plant health market sector. We are experienced marketing professionals who can bring you information on this growing market–information you can find nowhere else.

Mark_headshot_04Mark Trimmer has more than 30 years of experience in research, product development, registration, technical service, and technology licensing in the crop protection industry. Mark led international product development at American Cyanamid and successfully delivered numerous new product registrations. At BASF, he led new technology acquisition for the agriculture division and successfully negotiated development agreements on several new products. Most recently, Mark led R&D efforts at a biological startup company, NutraPark, and successfully developed novel biological PGR’s for enhancing fresh market fruits and vegetables. In 2006, Mark established his own company providing new technology assessment, R&D strategy, regulatory, and product development services to clients in the global agricultural chemical and biological markets. In April of 2013, DunhamTrimmer and New Ag International jointly launched 2BMonthly The Global Biocontrol & Biostimulants E-Newsletter, providing the latest news on the biopesticide/biostimulant industries. Connect with Mark on LinkedIn.



_SUS4282-encuadreManel Cervera Comabella has more than 15 years of experience in marketing and sales of specialty fertilizers and biostimulants. He was responsible in Sustainable Agro Solutions for product and business strategy development in more than 40 countries, managing commercial teams and dealing with the constant improvement of product differentiation from a technical and commercial point of view. Manel was focused on new market research and development in a period of rapid growth of the market. Most recently, in Biovert, he was responsible for the rethinking of their commercial and marketing strategy to improve access to the market, and as Assistant Manager in the strategic definition and business management. Manel launched his own business to help small and medium companies to succeed in adding value to their commercial and  marketing strategic planning. In 2017, he entered DunhamTrimmer as International Business Director based in Europe. Connect with Manel on LinkedIn.


WCD-photoWilliam Dunham has 44 years of experience in the seed and crop protection industries with more than 17 years in the biological ag markets, 12 of which have been with his own companies, including nine years with DunhamTrimmer LLC.  Bill’s experience has been focused around sales and marketing, with more than 40 years working in international business and market planning. As of January 1, 2019, Bill has commenced the process of stepping back from DunhamTrimmer, with the goal of retiring to pursue new activities.  For 2019, Bill is providing support to DunhamTrimmer, with client work as needed, and is focusing on positioning DunhamTrimmer for the future.  Bill plans to step down from his position of Managing Partner in mid-2019. He will remain as a Founding Partner for the foreseeable future.  Bill will be available to share his experience, and his knowledge for the benefit of DunhamTrimmer’s numerous clients. At DunhamTrimmer, service to our clients is our most paramount enterprise.

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