Senior Leadership

Clive Nation is the CEO of the Cennox Group, a portfolio of innovative companies which span the globe. From head offices in Surrey, Cennox has a network of strategic operation and sales offices across Europe and the United States.

Formally Managing Director at Travelex, for 13 years, Clive’s wealth of experience in managing customer estates, steering efficient operational growth, and delivering new security products to market, has made Clive an authoritative speaker and recognized figure at industry events around the world.

Cennox also provides our clients with a suite of managed Field Services as well as the supply of new, used, and refurbished parts. Our own in-house signage division also designs, manufactures, and installs custom signage, to organizations across all industries.

Clive has energized the Cennox Group’s rapid growth through a mix of strategic acquisitions of businesses that will complement our core services and build leverage within key markets, as well as the organic growth through a number of our in-house products and services.

Cennox has been one of only a small number of organisations to have successfully been listed on the Sunday Times, Virgin Fast Track 100, three years running. The coveted list details the fastest growing businesses in the United Kingdom. This achievment was replicated when Cennox was also ranked in the Sunday Times International Track 200, a list detailing the top 200 UK private companies with the fastest growing international sales. 

Nick Cockett is the Chief Operations Officer at The Cennox Group. A familiar face at many of the industry events around the world, either as a guest speaker, or exhibiting, Nick is an authoritative voice within the Financial, Retail & Gaming Industry.

With almost two decades experience, Nick has held senior directorships at the hugely successful ATM Parts Company, Travelex, CashZone and British Airways.

Tracy Heiner joined Cennox in 2015, an excellent communicator with a proven ability to affect change and lead an organization through substantial transformation.

In the last two decades Tracy has orchestrated turnaround of under-performing sales organizations, positioned the business for growth, and accelerated sales effectiveness to improve strategic relationships, grow revenues and improve profits. Tracy’s customer focus and innovative approach to solving business issues has garnered him respect in numerous industries.

Tracy has significant corporate executive experience previously leading teams with Brinks, Inc., Loomis, & Waste Management.  

Nick Armstrong joined Cennox in 2014 as the Director of ATM Division, following the successful acquisition of PSSI, a Project Management, Electronic Security and Installation company. Nick has successfully developed as an organizational leader within the Cennox team, moving into a Senior Vice President position. Nick’s past experience in Project Management, Director of ATM Division and Managing Director enable him to lead the Projects Division to further expand our full services and products to our customers across the United States.

Dan Kessler has extensive experience and knowledge in corporate business across a variety of industries, including security and alarm, financial institutions, hospitality and casinos.  Dan joined Cennox in 2013 as the President, following Cennox's successful acquisition of Sterling Bank Services. Dan's current role as Emeritus President serves as an advisor, providing guidance and expertise as a knowledgeable member of the Board of Directors.

Gary is the President of the Cennox US operations. With over three decades of experience in the industry, Gary's knowledge and understanding of the business prooves to be a valuable asset to the Cennox team and our customers.

Dori Johnston joined Cennox in December of 2014. As the Chief Financial Officer, Dori is responsible for the overall financial strategy and direction of the US operations, managing the company's finances.

Dori has an extensive career in corporate business, spanning nearly 30 years as Corporate Controller, CFO, and VP of Finance and Operations in service industries including IT, Healthcare, Benefit Communications, Trucking and Banking Services.

Les is an accomplished sales and operations executive with 25+ years’ experience driving profitability and market share for various Telecom, Computer Software, Membership, and Banking Service companies.

In partnership with the executive management team, Les creates leading-edge customer support solutions in support of the organization’s mission and goals while providing best-in-class products and services for banking and commercial institutions across the U.S.

Prior to the post of VP Operations, Les held a number of increasingly responsible roles in executive and general management with P&L responsibility of $50M and delivering exponential contribution to cash flow.

Birch Harrison is the Chief Product Officer at Cennox, leading the division at our Atlanta, Georgia facility. Joining the Cennox team in 2016 after the successful acquisition of Bankers Exchange, Birch has been immersed in the ATM retail and parts industry for 23 years.

Birch is an accomplished, strategic and result-driven professional, with years of sales and business development, which is beneficial to managing key accounts and our products team.