Steve Prebble - President Appriss Retail


Steve Prebble

Steve Prebble serves as the president of Appriss Retail and is responsible for all aspects its operations, joining the business in the summer of 2019.

Prior to Appriss Retail, Steve led several marketing service provider companies, including directing the growth of SaaS engagements for EYC and Aztec (acquired by IRi), and more recently driving significant growth of the digital load-to-card promotions ecosystem at Catalina for 100+ US retailers and CPG brands, serving offers to over 50 million shoppers nationally.

Earlier, Steve held senior roles with global food retail businesses across store operations, merchandising and marketing for leading retailers including Sainsburys, Shaw’s Supermarkets, Albertsons, and Tesco Lotus (Thailand). Steve has led the design and launch of two retail loyalty marketing programs and the creation of CRM engagement programs and the supporting insights and analytics infrastructures.

Steve earned his MBA from the Heriot-Watt University, Edinburgh, Scotland.

Cheryl Blake

VICE PRESIDENT, global client success

Cheryl Blake

Cheryl Blake is vice president of Global Client Success. She joined Appriss Retail via acquisition in 2019 and oversees the client services and product development for four solution modules.

Cheryl balanced her 40+ year career between hands-on retail experience and software solution providers in retail loss prevention. Cheryl began her LP/AP profession as a store detective in Detroit and progressed through increasingly responsible positions at Lord & Taylor, Toys R Us, Kids R Us, Clador, Funcoland, and GameStop. Later, she used that experience to enhance solution development, implementation, and support at Aspect Loss Prevention and Verisk Retail. Well known in the industry, she has been called on to speak as a Loss Prevention authority at numerous industry events presented by NRF, RILA, RLPSA and NAFCI. Cheryl holds degrees in Criminal Justice and Psychology from Michigan State University.

Vice President, operations and development

Geoff Lyle

Geoff Lyle is the vice president of Operations and Development for Appriss Retail. Geoff has over twenty years of experience delivering successful technology driven solutions for retail clients. He manages the professional services, program management, and development teams responsible for the delivery of Appriss Retail solutions internationally.

Prior to joining Appriss Retail, Geoff developed his retail and consulting experience as a management consultant with IBM Business Consulting Services and PriceWaterhouseCoopers. Geoff is a graduate of the University of Southern California with a Bachelor of Science degree in Economics and Public Policy.

Brian Oldham


Brian Oldham

Brian Oldham joined Appriss in 2000 and currently serves as Chief Information Officer. Brian is responsible for setting the technology vision for Appriss and enterprise-class scalability for the services delivered to customers. He leads the Enterprise IT and Security organizations. Brian has more than 25 years of experience in leading technology organizations at large and high growth companies.

Prior to being CIO, Brian was responsible for product engineering and technical operations for Appriss, leading the engineering efforts for all products. Brian has led initiatives such as Agile Development, DevOps, and AWS migration. Prior to Appriss, Brian held technology leadership positions at GE and Providian/Aegon Insurance.

Brian is a member of the Industrial Advisory Board for the University of Louisville’s J.B. Speed School of Engineering, Computer Science department. Brian received a Bachelor of Science degree from Purdue University and is IT Service Management Foundations certified and Six Sigma trained.

Vishal Patel, PhD


Vishal Patel, PhD

Dr. Vishal Patel is the vice president of Engineering for Appriss Retail. In this role he is responsible for all engineering functions, building and supporting the product suite, and helping bring new products to market that better serve Appriss Retail’s customers. He has more than a decade of software and programming experience working with a variety of different technology stacks, database solutions, and cloud providers. Previously, as the director of data science R&D for Appriss he was responsible for building and deploying data application and machine learning models for retail clients as well as customers of Appriss Health and Appriss Insights.

Vishal has a PhD in Computer Science from University of California, Irvine where he focused on machine learning and data integration challenges and published more than a dozen peer reviewed research papers. He has also taught professional classes in data science.

Vice PResident, Marketing

Tom Rittman

Tom Rittman is the vice president of Marketing for Appriss Retail. In this role, he is responsible for the organization’s branding, demand generation, marketing research and communications, as well as product marketing and business development.

Prior to joining Appriss Retail, Tom served as the vice president of marketing for Datavantage, a retail technology company that is now part of Oracle, where he was responsible for the organization’s marketing strategy, development, and execution. Prior to that, he held various marketing leadership positions with TMW Systems and Roadway Express.

Tom is active in the Loss Prevention Foundation (LPF) and holds his bachelor’s degree in Marketing from the University of Akron.

Senior Vice President, ProductS

Nathan Smith

As senior vice president of Products, Nathan Smith is responsible for delivering and supporting products for Appriss Retail’s clients.

Nathan launched his career on the retail side of the business, starting at Safeway in the UK. He worked for several high-profile retailers such as Marks & Spencer and Tesco, performing roles as diverse as cashier, store manager, and enterprise software architect. This broad range of retail experience and knowledge enables Nathan to have great insight into the challenges facing retailers today. He went on to co-found Sysrepublic (now part of Appriss Retail).

Nathan has a degree in Information Technology for Business and over the last decade has presented at major retail events and trade shows around the globe highlighting how technology can be used more effectively to deliver value for retail businesses.

chief data scientist

David B. Speights, PhD

Dr. David Speights is the chief data scientist for Appriss. He has more than 25 years of experience developing and deploying analytical solutions for some of the world’s largest companies. Throughout his career, he has managed massive amounts of data using big data tools. He is responsible for analytical modeling and managing POS data from retailers around the globe for Appriss Retail as well as overseeing the development of analytical models for other Appriss business units. In 2017 he co-authored a book about retail analytics.

Before joining the company in 2000, David was first vice president of Mortgage Credit Risk Modeling at Washington Mutual and chief statistician at HNC Software. He consults on projects within a number of industries. Speights holds a PhD in Biostatistics from the UCLA and has several patents.


Senior Vice President, Sales

Bob Walters

Bob Walters is the senior vice president of Sales for Appriss Retail. In this position he is responsible for managing the global sales team.

Prior to joining Appriss Retail, he served as the vice president of Sales for IntelliVid. Before that, he was the executive vice president of Sales and Marketing for Datavantage, a software development/service company that is now part of Oracle. Bob also held executive positions with both Callos Technology Partners and Entre Consulting.

Bob holds a bachelor’s degree in Management Information Systems from Youngstown State University.