Mark Horne

Executive Chairman

Mark Horne brings 35 years of business leadership experience to his role as Executive Chairman at Global GRAB.


Mark started his career as a CPA with Price Waterhouse, where he worked in a variety of industries including manufacturing, oil & gas, advertising, and real estate management.


Later Mark worked for several large privately owned manufacturing businesses with senior management roles in finance and operations.


During his tenure as VP Finance for Opex Corporation, the company grew revenues by a factor of 10X and Mark led the accounting team, implemented an ERP system, assisted with international expansion in Europe, and managed the site selection and construction of the firm’s corporate headquarters and manufacturing facility.


As CFO of Midwest Stamping, a tier one automotive supplier, Mark led a financial and operational turnaround, improved their ERP systems, and participated in the roll out of Lean Manufacturing across their three manufacturing facilities in Ohio, Kentucky and South Carolina.


Most recently Mark served as Operating Partner for Plymouth Growth, a private equity firm based in Ann Arbor, MI.  Plymouth invests in growth stage businesses in the central US and is the majority owner of Global GRAB. Mark has a strong track record of helping build strong, sustainable businesses across Plymouth’s portfolio and joined the GRAB management team full time in late December 2021.


Mark has degrees in accounting and finance from Cedarville University in Ohio; and an MBA from Widener University in Philadelphia.


our process

Best Practices Consult

Based on a consult, we formulate recommendations and discover potential security gaps as we identify solutions that others might miss and solve operational challenges that seem unsolvable.

Design & Engineer

Our innovative team designs new perimeter security products, solutions and technology to fulfill the functional obligations and requirements of a customer’s specific security goals.

Construct & Integrate

A key differentiation of Global GRAB is our experience in fabrication, manufacturing, construction and the design of custom controls while leveraging integration efficiencies.

Maintain & Service

We deliver a maintenance, service and warranty program designed to meet the challenges and service-level agreement requirements of mission critical organizations.