bioWALL, LLC is a privately-held New York-based bio-protection technology company leveraging over two decades of experience developing and deploying bio-response, hazardous materials sterilization and large-scale remediation. Led by a seasoned management and scientific team with expertise in managing biological, chemical and other environmental issues, bioWALL is well-positioned to partner with governments, corporations and communities to identify and address the distinct risks and threats they face. We help prepare for, prevent, and efficiently remediate biological and chemical contamination events.

With proven science at its core, bioWALL leverages protocols and processes developed by its affiliates, the Sabre Companies and Sabre Intellectual Property Holdings, to ensure our clients are able to prepare for and rapidly address critical high-risk events. We also take concrete steps with our clients to prevent future outbreaks

Whether utilized to treat naturally occurring pathogens or to clean industrial and municipal wastewater, pure ClO2, as generated and applied in Sabre DiKlor® treatment services, is the most powerful broad-spectrum biocide available anywhere.

Setting the standard for effective, efficient and safe large-scale decontamination processes and protocols, bioWALL is proud of its strong relationships and validation from key government agencies including the Environmental Protection Agency, the U.S. Department of Agriculture, and the National Academy of Science.


Mr. Mason founded the chlorine dioxide panel on the American Chemistry Council in 1988 to develop standards for the chlorine dioxide industry for disinfection of drinking water and food, and for industrial applications. This group developed the data required for chlorine dioxide use as a primary disinfectant for drinking water in the United States and continues to support EPA in the development of regulations and standards for municipal water and wastewater disinfection. He is regarded as a national leading expert in response solutions to complex emergencies related to environmental contamination and human health risk. Further, he is recognized by the EPA, U.S. congressional committees, Department of Homeland Security, and other major parties as a leading authority on chlorine dioxide. Mr. Mason has been the lead technical advisor to governmental agencies and commercial businesses on numerous events, ranging from the US Capitol anthrax attack, to large biopharmaceutical and agribusiness viral contaminations, to biosecurity protocols and on-site evaluation of former Soviet Union weapons facilities.

Mr. Mason also has extensive experience in the oil & gas industry, providing treatment services for almost twenty years. Mr. Mason’s experience in the chemical industry is extensive, with duties including design and operation of chemical manufacturing facilities, health and safety audits, chemical and industrial accident investigation, determination and remediation of gas, liquid, and solid chemical releases, and the development of analytical methods.
Mr. Brennan brings over 25 years of experience spanning public and private sector positions in leadership. He joined bioWALL in 2015 during the HPAI outbreak in the Midwest and has contributed to the growth of the company in business development, strategy and government relations.
Mr. Mason joined Sabre/bioWALL’s R&D division following the 2015 avian influenza outbreak. Through 2017 he was heavily involved with chemical efficacy and microbiological studies. Since then, Mason has continued to leverage his technical background in consultation for clients and project management.
Mr. Crowell brings twenty years of experience in venture capital, economic development and C-level financial leadership in the manufacturing, government and health care industries. He joined bioWALL after serving for eight years as the Treasurer of Otsego County's $100 million operations in upstate New York. Prior to that, Mr. Crowell worked for the World Bank's International Finance Corporation, cultivating their portfolio of "social venture capital" investments in Asia. He has also served as a board member and consultant to several Value Based Payment initiatives in the health care field, as well as the Administrator/Director of a 1,200 member self-insured health care plan for eight years.

Mr. Crowell has a BA from Gettysburg College, an MSc in Economics from the London School of Economics and was a Fulbright Scholar. He continues to serve as a Major in the U.S. Army Reserve's Civil Affairs Command, and prior to that was branch Infantry and is Airborne qualified.
Dr. Gottselig brings over twenty combined years of experience in scientific research and intellectual property law. After earning a Ph.D. from University of Iowa, she conducted research at the Institute of Pharmacology & Toxicology at the University of Zurich and at Brigham & Women’s Hospital and Harvard Medical School. Her research was awarded fellowships from the National Institute of Mental Health and the National Heart, Lung, and Blood Institute and has been published in numerous peer-reviewed journals. Dr. Gottselig was awarded a Full Tuition Merit Scholarship to study law at New England Law Boston and graduated valedictorian. Before joining bioWALL, she worked at Boston area law firms for clients ranging from start-ups to global pharmaceutical companies, managing intellectual property portfolios relating to a variety of technologies in chemical, energy and life sciences. Dr. Gottselig’s expertise includes intellectual property assessment and management, patent drafting, worldwide patent prosecution, negotiating business transactions, and conducting analyses that inform strategies for R&D, investment, licensing, and commercialization.
Before joining bioWALL, Mr. Massey was in a technology leadership position at Baker Hughes, Inc. during their most recent entry into the chlorine dioxide sector. He was responsible for all aspects of their chlorine dioxide surface water applications. Prior to Baker Hughes, he worked for Ashland Water Technologies, which is a global water treatment service company. Mr. Massey has over 25 years of experience with water treatment in a variety of markets and applications.
Mr. Williams has been with Sabre for 10 years and oversees all engineering and design aspects of bioWALL’s equipment and implementation of technology. He was the Managing Director of Vernagene, a UK-based company specializing in chlorine dioxide, and is now the Managing Director of bioWALL UK. Mr. Williams studied mechanical engineering and has over 25 years experience working exclusively with chlorine dioxide. He has designed the equipment required for infrastructure decontamination with gaseous chlorine dioxide and for the safe application of chlorine dioxide solution in the oilfield for both down hole and fracking operations. Further, Mr. Williams has managed many major infrastructure decontamination projects, including infrastructure contaminated with weaponized biological agents. He has assisted in writing many patents for chlorine dioxide application and has a patent issued in his name.


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