Copy of AgriMetis Team


Discover. Develop. Deliver. 

Steven Tuttle | CEO

Steven Tuttle

  • President & CEO

Steven comes with more than 25 years of global agricultural business experience and expertise. His experience includes building, running, developing and leading global businesses. Specifically, within the Agricultural Segment he has held several sales, marketing and commercial management roles. He has been global business director for the insecticides and fungicide portfolios within Dow AgroSciences. In addition, responsibility as global business director for the Bioscience platform, Ventures & Business development and Alternative Energy Business (AEB) within The Dow Chemical Company. Steve served as President and Chief Executive Officer of Dow Kokam LLC. He has traveled globally since 1994 and lived for 6 years in Tokyo Japan. Steve will be accountable for building out the team that will shape and accelerate AgriMetis’s approach to develop and deliver new innovated molecules to the global agricultural market. He earned a bachelor's degree in Agricultural Engineering from The Ohio State University.

Dorsey, Lauren-update.jpg

Lauren Dorsey

  • Research associate

Lauren joined the AgriMetis team following completion of a Master of Engineering in Chemical and Biomolecular Engineering from the University of Delaware, where she conducted research in biomedical diagnostics tools development.  Before studying at the University of Delaware, she received a Bachelor of Science in Chemical and Biomolecular Engineering from the University of Maryland at College Park.  She has professional experience in process development from an internship at DuPont Crop Protection.

Simon Aspland | VP of Business Development

Danielle Estridge 

  • Research assistant

Before joining AgriMetis in 2014, Danielle studied at University of Maryland College Park and Montgomery College, earning degrees in Cellular Biology & Molecular Genetics and Biotechnology. Danielle’s professional experience includes an internship at the National Institute of Standards and Technology (NIST), participating in research funded by the American Dental Association (ADA) Foundation on the use of 3D airbrushed polymer nanofiber scaffolds as grafts for the regeneration of damaged periodontal tissues.

Stephen Fields, Ph.D.

  •  Director of Chemistry

Stephen began his career at Dow AgroSciences where he spent 19 years in Discovery Research with an emphasis on Natural Products and developing methodology, design and synthesis of small chemical entities such as the picolinic herbicides.  He then moved to Lexington Pharmaceuticals where he worked with Heartland Sweeteners in advancing the knowledge of complex carbohydrate chemistry, ultimately providing a new process for the production of sucralose, as well as providing chemical support for other companies.  From there he moved on to one of the largest Contract Research Organizations (CROs) in the world, WuXi Apptec in Shanghai China, where he spent 3 years as Senior Director leading groups working with major international pharmaceutical clients. He received his Bachelor of Science degree in 1985 with Harold Pinnick and his doctorate degree from the University of Wisconsin-Madison in Synthetic Organic chemistry, under the supervision of Prof. Ed Vedejs in 1989.  He has authored dozens of peer-reviewed articles and patents.

Brian Green, ph.d. Director of Biology 

Brian Green, Ph.D.

  • VP of ReSearch and Development  

Brian is a co-founder of AgriMetis. Previously, while at Acidophil, he was involved in various aspects of company creation and management, including leading the research programs of ZuvaChem (merged with BioSyntha). Earlier in his career, he conducted postdoctoral work focused on the fungal pathogen Candida glabrata at Johns Hopkins University.  He received his doctorate from the University of California, San Francisco in Genetics where he studied genomic damage and rearrangements associated with cancer progression.  He has authored peer-reviewed articles published in numerous journals, including Science.


Ronna Grossman-Schenker, MA, CPA

  • Director of Finance

Ronna is a Certified Public Accountant and holds a Masters in Finance from Johns Hopkins University. She possesses expertise in valuations, financial planning and accounting.  She has served in pre-IPO VC funded organizations as well a large company where she built a finance and reporting function for a local Fortune 250 energy company.  Ronna started her career with Westinghouse Electric and served in various capacities including Vice President of Finance for KAO (Goldwell), Director of Financial Planning for Constellation Energy and provided consulting services for various start-ups and non-profits in Maryland, Virginia and DC.

Matthew Oberholzer, Ph.D.

  • VP of Technical Operations

Matt joined AgriMetis after thirteen years with DuPont Crop Protection where he worked with colleagues to develop and scale up the chemical synthesis of novel pesticides, including Rynaxypyr® and Cyazypyr®.  Prior to his work in agricultural chemicals, Matt worked for six years in chemical process research and development for several pharmaceutical companies, including Novartis Pharmaceuticals and Bristol-Myers Squibb.  Matt earned a B.S. in chemical engineering from The Johns Hopkins University and a Ph.D. in chemical engineering from the University of Delaware.

Nadejda Pavlova, Ph.D.

  • Research Scientist

Nadya is a scientist with extensive research experience in different areas including biochemistry, enzymology, molecular biology, assay development and protein purification. She joined AgriMetis in 2015 after working 3 years for Acidophil. Previously she worked in both academia (Tulane University in New Orleans and University of Maryland) and industry (Fidelity Systems).  Her professional experience includes complete development of novel commercial chimeric DNA polymerases for PCR (TopoTaq and TopoTaq HF). Nadya received her doctorate in Chemistry from the Lomonosov Moscow State University, Russia and has authored peer-reviewed articles published in numerous journals and books.

Murray Spruill, J.D., Ph.D.

  •  IP COUNseL

Murray has extensive experience strategically developing patent portfolios, including drafting and prosecution, in- and out-licensing, and providing opinions on freedom to operate and patent-ability. He is a retired partner at Alston & Bird, LLP, where was a co-leader of the Intellectual Property Patent Group and the leader of the Biotechnology, Chemical and Pharmaceutical Team. On multiple occasions Murray has earned the Raleigh-Durham Area Lawyer of the Year Award for Biotechnology Law and he is listed in Best Lawyers in America in the areas of Intellectual Property and Biotechnology Law. Murray received his Ph.D. in Genetics from North Carolina State University and his J.D. from The George Washington University Law School.