Mark Warner is the National Sales Manager for The Bullen Companies and has over 30 years of experience in the cleaning industry. He previously served as Education Manager for ISSA’s Cleaning Management Institute, where he led nationwide training seminars and developed the globally recognized Certified Custodial Technician programs. A former ISSA Board member and a CIMS Certified Expert since its inception, Mark has also chaired the IICRC’s Hard Surface Division and served as president of the Low Moisture Carpet Cleaners Association. He is an expert in infectious disease control and has worked with organizations such as the U.S. Dept. of Homeland Security, FEMA, and the U.S. Military. Mark is currently involved in the development of IICRC/ANSI cleaning and infection control standards.

Jeff Cross is the Executive Editor of Cleanfax, the leading media brand for the combined carpet cleaning and disaster restoration industries. Although his career early in life was in the media as a reporter and photographer for a daily newspaper, he decided at the prompting of a close friend to start his own cleaning and restoration company and then sold it years later to return to journalism and take a position as editor.

Cross calls his work with Cleanfax “a perfect fit” as he can relate to the industry because he has “made every single mistake there is with cleaning and restoration” and can help his audience avoid those same mistakes. In addition to his work with Cleanfax, he is also an IICRC-approved technical trainer for the categories of carpet cleaning, furniture cleaning and color repair.

Cross is the creator of Totally Booked University, which provides cleaning and restoration business owners with marketing solutions for their companies. He is also a partner in the MarketingZoo, a content-generating service for cleaning and restoration websites, social media sites and other marketing platforms.

Neal Duffy is a 40+ year veteran of the Janitorial / Sanitary Maintenance (Jan San) industry with extensive industry experience on both the manufacturing and distribution sides of the business.

Neal’s background includes many years of experience in consulting with facility managers in the development of, training towards, and the implementation of; custodial best practices, ‘healthy – high performance cleaning’ processes, professional decontamination and disinfection, sustainable cleaning practices and “high productivity” cleaning concepts.

Neal has practiced as a registered Environmental Health Specialist, Registered Sanitarian and is an ISSA Certified Expert in Cleaning Industry Management Standards – Green Buildings (CIMS – GB), a GBAC Forensic Restoration Technician and an ISSA Certified Professional Trainer (CPT). Neal is a past board member of the USGBC Upstate NY Chapter, and has completed the Ashkin Group’s: “Green Cleaning” University.

Neal’s passion for the industry has been centered around the transfer of proper cleaning knowledge. Helping industry professionals grow and develop their skills has been his greatest reward.

Mark W. Exner began his career in the cleaning industry in 1974. While working towards a degree in law enforcement, he took a job in a hospital environmental services department. Performing all tasks from commode cleaning to sterilizing surgical rooms, Mark found the work hard but very rewarding. Unable to find a job opening in law enforcement, Mark continued to clean and eventually started his own cleaning business. Shortly after that, Mark took some professional courses on cleaning just to see what he might not know about cleaning. His instructor amazed him on all the many important elements he had never been taught before, and he soon realized just how valuable the knowledge really was.

He quickly learned the value of formal education in cleaning and realized that if the knowledge could help him that much, then he would like to instruct and inspire others, as well. Shortly after that, Mark took some professional courses on cleaning just to see what he might not know about cleaning. His instructor amazed him on all the many important elements he had never been taught before, and he soon realized just how valuable the knowledge really was. He quickly learned the value of formal education in cleaning and realized that if the knowledge could help him that much, then he would like to instruct and inspire others, as well.

Currently, Mark instructs CMI’s Certified Custodial Technician and Train the Trainer programs, as well as courses in Carpet Cleaning, Upholstery Cleaning, and more. Mark’s warm and simple approach has inspired many, and his deep respect for his students has set a good example for the industry. Mark has gone on to become an educational product developer for the cleaning industry and he graciously welcomes your ideas for new course development.

Brant Insero brings 15+ years of professional training on Jan/San, telecomm, sales, leadership, management & business development. Brant oversees ISSA’s global portfolio of training programs. Brant is passionate about innovating the entire cleaning industry through education.

Bill McGarvey is the Director of Training and Sustainability for Imperial Dade, the leading independent distributor of foodservice packaging as well as facility maintenance supplies and equipment in the U.S., Puerto Rico, and the Caribbean. With over 40 years’ experience in the commercial cleaning industry, McGarvey is responsible for all aspects of customer training through the Imperial Dade Cleaning Institute, virtual as well as on site workshops, regulatory compliance seminars, and equipment in-service programs.

Additional customer support is provided through activities such as troubleshooting and problem resolution, job assignment development, cost justifications, and program recommendations. Also, within this role, McGarvey monitors industry trends to develop new training or revise existing programs. From 2010 through 2019, Bill delivered training to over 14,000 front line custodians, supervisors, and managers. McGarvey is a CMI Master Trainer for the CMI Custodial Technician Certification Program and is certified as an official ISSA CIMS and CIMS-GB Certification Expert. In the sustainability arena, McGarvey is a LEED Green Associate. He has conducted green cleaning awareness seminars for countless cleaning professionals and numerous green cleaning surveys for customers while helping develop pilot programs to move their operation in a more sustainable direction.

McGarvey has authored or contributed to numerous industry articles over the past two decades. Earlier in his career, McGarvey worked for a major international contracted service provider, rising from an entry level position into management roles. Bill has also owned his own commercial cleaning and consulting firm.

Matt Moberg has over 14 years of industry experience with in-house service providers, building service contractors, and consulting work with CMI/CMM. Over his tenure in the industry, he has supported distribution partners as a Regional Manager for Kaivac Cleaning Systems. Matt is a graduate of Siena College and SUNY with an MBA focused on Project Management.

Derek Oliveira has been in the housekeeping business for 20 years.  His sense of innovation, resourcefulness and efficiency quickly earned him major mandates, first as supervisor and then director. Over time, he has successfully managed the hygiene and sanitation of important buildings for several large companies from various industries, such as pharmaceuticals, office towers, transport.

Derek holds several important and highly regarded industry certifications:​

• Industry Cleaning Expert Management Standard, by CIMS
• Certified Professional Trainer, by ISSA
• Green Building Assessor, by ISSA-CIMS
• Certified Workloading Specialist, by CMI-ISSA
• Accredited Auditing Professional, by CMI-ISSA

​ValkarTech is therefore the only housekeeping consulting firm in Quebec to have these renowned certifications.

Senior Director at ValkarTech, Derek Oliveira specializes in quality control and as a certified auditor by the Mouvement québécois de la qualité he audits several buildings from various industries every week. Offering innovative solutions focused on performance and quality, he delivers results that exceed the expectations of its customers.

Perry Shimanoff is a former U.S. Marine Corps Infantry Officer (served during the Vietnam conflict). He has worked as a maintenance and operations cleaning consultant for the past 36 years, primarily with school districts, community colleges, universities, cities, and charter schools throughout the United States. Shimanoff has consulted with more than 500 clients, providing audit services, staffing assistance, and of course custodial training programs.

Shimanoff has completed a three-year tenure as the Vice-President of the International Custodial Advisory Network (ICAN), and participates as a member of the “Ask the Experts” forum for CMI. From 1995 through 2009, Shimanoff (with Griffin) was selected to be the custodial trainer for the California Association of School Business Officials (CASBO), with more than 15,000 custodians attending these workshops and seminars. Shimanoff has contributed articles to a variety of trade journals (Cleaning and Maintenance Magazine, American School & University, Turf Maintenance, CASBO Quarterly Journal of Business, etc.) and is the author of two novels.

As the founder of Management and Communication Consultants, his company has developed maintenance and custodial software used by hundreds of organizations. His approach to training is very simple: Clean Smarter, Not Harder.

Stanley Quentin Hulin is a member of the cleaning industry since 1975, he has over four decades of cleaning industry related, services, training, sales/marketing, and management experience. As president and CEO of Future Floor Technology, Inc., he has designed and implemented cleaning and maintenance programs for building service contractor companies such as American Building Maintenance, DuPont Flooring Systems, milliCare Carpet, as well as independent contractors. As national and international consultant he has conducted cleaning and hard floor maintenance seminars throughout the United States as well as the Netherlands, France, Belgium, Egypt, and Japan. Most recently he has acted as a consultant for government bodies to evaluate and develop comprehensive cleaning programs as well as work with the cleaning companies that service them.

International Trainers

Lourdes Sousa Combe has earned a Master’s in Business Administration and a Bachelor’s in Hospitality Management at ESDAI-UP, as well as a Specialization in Hospitality Services in Mexico. Her ample professional education also includes different foreign courses: a Specialization in Hotel Business and Restaurant Management at Cornell University, USA. A Specialization at the Hotel and Tourism School “Spermalie” in Bruges, Belgium. Specialized training in General Services at the Methodist Hospital, in Houston, Texas. A Hospital Cleaning Course at the Navarra University in Spain and in APPA (Institute for Facilities Management), USA.

For more than 45 years, she has been a professor, researcher, trainer, auditor, and advisor in the hospitality industry in Latin America. Her lines of research and development include customer services, housekeeping, food and beverages, hotel laundry and dry cleaning, restaurants, schools, universities, and hospitals, in North America, Central and South America. She has participated in radio and TV programs and collaborated in diverse specialized magazines.

Lourdes is the co-author of the book: “El Servicio de Limpieza: Ciencia y Administración” (The Cleaning Services: Science and Administration), Limusa Editorial, and author of the following books: “Lavado y Cuidado de Ropa y Textiles” (Laundry Care and Textiles); “Limpieza Profesional” (Professional Cleaning); “Lavandería y Tintorería Profesional” (Professional Laundry and Dry Cleaning) and “Limpieza Verde” (Green Cleaning), Trillas Editorial.

Since 2006, Lourdes has participated as a Speaker and Trainer for ISSA members in Latin America and USA. She is the current Spanish-speaking Master Trainer for CMI at ISSA.