Glenn Brandon, Chief Executive Officer and one of the founding members of SentrySciences LLC, brings 30+ years of sales and service experience serving both the High Technology Electronics and Pharmaceutical Markets. Prior to SentrySciences (f/k/a PMT), Glenn was the Global VP of Sales and Service for Particle Measuring Systems, Inc., responsible for a global network of sales and service offices focused on the Semiconductor, Data Storage and Pharmaceutical Markets. In this capacity, he oversaw both direct and indirect sales and service resources and was responsible for the development and execution of global sales and service strategies.
Erik Haugen, Chief Operating Officer for SentrySciences, has close to 30 years of experience in instrumentation development, manufacturing, service, sales, and support. Throughout his career at Particle Measuring Systems, he spent time in Manufacturing (assembly, final test & calibration) and Service & Repair (in-house and global on-site calibrations, and technical writing). Entering the business side of the business, he worked as Inside Sales Engineer, Direct Sales Representative and Global Account Manager. At Anton Paar, he was Territory Manager overseeing sales and service functions for the Rheology and Zeta Potential product lines. Erik has been with SentrySciences LLC since 2013 making good use of all his expertise. Erik has an A.A.S. in Electronics and a B.S. in Business Management.
In his spare time he enjoys RVing, customizing his old truck, and, at work and home; mechanical design and 3D printing.
Dan Knollenberg, Chief Financial Officer, has been in the microcontamination industry for close to 50 years in operations, finance and board involvement with Particle Measuring Systems, Research Electro-Optics, Particle Metrics Inc., TSI and, since 2011, SentrySciences LLC. He brings a wealth of knowledge to every facet of SentrySciences' business!
Dan has a B.S. in Business from Eastern Illinois University.
Mark Berdovich, Director of Sales, has over 25 years of experience solving customer problems related to particles and other unwanted sources of contamination. Starting in 1995 with Micro Measurement Labs, a particle testing laboratory and particle standards manufacturer, Mark received his GMP training and spent 6 years developing products and test methods for customers and in support of a sister company distributing particle counting and sizing instruments. In 2001, he was offered an opportunity to move to Florida to launch a new Southeast Territory for a design-build cleanroom construction contractor. After successfully building a multi-million-dollar territory from zero, he accepted an opportunity to move to Colorado in 2008 to manage the systems installation and validation services group at Particle Measuring Systems. He joined the SentrySciences team in 2017 and is proud to be leveraging his GMP and Project Management experience to serve customer’s monitoring system needs. Mark has a B.S. in Mechanical Engineering from the University of Illinois at Urbana-Champaign.
Sandy Hutchison, Global Director - ParticleSentryᴬᴵ, joined Sentry Sciences in 2020. She has 30+ years of experience in high technology operations, sales and marketing. Before joining SentrySciences, Sandy was VP of Operations for Research Electro-Optics, responsible for manufacturing strategy and execution, customer support, supply chain and inventory control. Her experience in contamination control began at Particle Measuring Systems, where she held managerial and executive roles in Supply Chain, Global Account Management, Sales & Operations and finally, Global Marketing. In these roles, she applied her knowledge of environmental control to new product development, market strategy and client support for products targeted at the Pharmaceutical, Semiconductor, and Data Storage markets. Sandy is a collaborative, flexible leader who holds herself and others accountable to achieve results. In our business, she is always willing to jump in to help get things done.
Mark Cowley, Systems Integration Manager is originally from Johannesburg, South Africa. He received an Information Technology extraordinary ability visa (EB-1) to the United States and relocated to Colorado in 1998. Since 2015 he has worked in various capacities at SentrySciences in support of customer installations of cleanroom monitoring systems. Currently Mark leads Systems Integrations and Validations for SentrySciences. Mark’s technical profile is ideally suited to SQL database management, design and implementation of instrumentation software drivers and OPC integration with third party software packages. As a pastime he enjoys gardening and restoring classic cars and motorcycles.
Taylor Dunlop, Service & Quality Manager, joined SentrySciences in November of 2018. Before joining SentrySciences, he worked as a Premium Auditor for The Hartford, working as a remote on-site auditor for the entire state of Colorado and parts of Kansas. There he honed his skills of Quality Reporting, Customer Service, and Account Management. He brings technical expertise from his time as a Fire Control Technician in Navy (Honorably Discharged Veteran), and as a Field Engineer for Halliburton. At SentrySciences, Taylor took over all calibration services, quadrupling service sales in 3 years, and the ISO 9001 quality program where he led the company through (2) ISO recertifications and an update from ISO 9001:2008 to the new ISO 9001:2015. He graduated Summa Cum Laude from Regis University with B.S. in Finance.
Nancy Yocum, Marketing Communications Specialist, brings several years of experience with print, commercial and social media advertising to SentrySciences. Responsible for driving demand by developing and executing marketing campaigns, expanding brand awareness, managing the virtual and live tradeshow process, and measuring the effectiveness of the marketing program.
Prior to SentrySciences, Nancy was an Account Manager for Procter and Gamble Business to Business Advertising for Colgate Toothpaste. Nancy holds a B.S. in Advertising from the University of Illinois.
Don Pfeffer, Product Marketing - Biodecontamination Products, founded Accurate Reimbursement Solutions, Inc. a healthcare revenue cycle management company in July 1996. As president and chief executive officer, he was responsible for managing the company's overall direction, market strategy and business development. He retired from Accurate Reimbursement Solutions in July of 2019 and joined SentrySciences to put his healthcare and clinical experience to use developing applications and strategies for SentrySciences' Bioreset and other biodecontamination products. Don received his bachelor's degree from Ohio University and his MBA from the University of Phoenix.
Don enjoys work on, and riding, all types of motorcycles.