As Chairman, Barry brings a wealth of knowledge and deep business background to the BioProtectors™ Team.  With more than four decades of experience in the Real Estate Industry, in particular the steel industry as the President and CEO of Koenig Iron Works, Inc., a structural and ornamental steel company (  headquartered in Long Island City, N.Y. Barry has also been an owner and managing member of several real estate development companies, with acquisition and development projects in New York City, Florida, and the Hamptons.

For the past fifteen years, Barry has served as a Director on the Board of the publicly traded Nathan’s Famous Hotdogs. As a true entrepreneur, Barry is actively involved in five start-up companies, as an angel investor and member of their respective boards. Lastly, for the past ten plus years, Barry and BioProtectors™ President & CEO, Paul Spagnoletti, have also been partners in Lionheart Maintenance ( , further connecting him to the Facilities Services Industry.

Prior to his esteemed business career, Barry graduated from C.W. Post University with a BS degree in Science.


As President & CEO of BioProtectors™, Paul’s responsibilities include developing strategic objectives to advance the company’s mission, specifically  Business Development, Marketing and Customer Retention. Paul’s 25-years of industry experience, while holding senior executive positions for nearly two decades of his accomplished career, demonstrates a reputation as a proven industry leader. Paul has built an esteemed client list based on the philosophy of personalized, responsible and “hands-on” service delivery. In his career, Paul has worked on some of the most intricate client projects and contract implementations on a national scale.

Paul divides his time accordingly, while also serving as President & CEO of Lionheart Maintenance ( and sharing Partnership duties with Barry Leistner.  Being a “real estate enthusiast” and remaining actively involved in the “trades”, Paul participates in a number of service provider associations, BOMA, and ISSA, achieving the designation of ISSA Certified Expert in 2019. Prior to his career at BioProtectors™, Paul attended St. Lawrence University where he graduated with a Bachelor of Science degree in Economics. Additionally, Paul successfully earned a Master of Science in Real Estate Degree from NYU.


As the Executive Vice President BioProtectors™, Leslie has an array of responsibilities across several departments within the organization, as well as, vital interaction with our Client base. Leslie’s dynamic management skills, leadership, fiscal management experience, and ability to effectively delegate, all help BioProtectors™ achieve outstanding service delivery and Client experiences. Leslie’s responsibilities include corporate infrastructure, development and adherence of corporate policies & procedures, as well as, overseeing the firm’s technological initiatives to advance efficiencies.  Leslie divides her time effectively, while also serving as the E.V.P. of Lionheart Maintenance ( and sharing executive duties with Paul Spagnoletti.

Throughout her career, Leslie has worked in all facets of the maintenance industry and her diverse background provides substantive depth to our BioProtectors™ Team.  Leslie also achieved the designation of ISSA Certified Expert in 2019. Prior to her career at BioProtectors™, Leslie attended Kean University where she graduated with a Bachelor of Arts degree in Criminal Justice. Additionally, Leslie successfully completed an ABA approved Paralegal Studies Certification for the State of New Jersey at Fairleigh Dickinson University.


As the Business Manager and Product & Training Expert, Ron has several roles of high importance for our BioProtectors™ Team. With more than 15-years of hands-on industry experience, Ron is widely known for his substantive and dynamic teaching ability, which sets him apart as a proven industry leader.  Ron has an amazing depth of Product/Chemical knowledge, along with extensive spraying/applicating experience.  This Product & Training Expertise provide both our BioProtectors™ Clients and our Field Technicians, tremendous insight with project preparation, estimating and onsite applicating methods.  Ultimately Ron’s resourceful background are highly valuable in achieving maximum targeted results. 

Prior to joining the BioProtectors™ team, Ron was the Director of National Training at ViaClean Technologies for both in-house and outsourced sales and service organizations. His combination of sales and distribution experience, as well as, decades of front-line field disinfecting services, make Ron a valuable asset to our BioProtectors™ Team and its’ Clients.