Executive Leadership

Our Executive Leadership Team has the vision, passion and expertise of end-to end service supply chains needed to forge innovative solutions that keep the world connected.

Leadership Team

Our Executive Leadership Team has the vision, passion and expertise of end-to end service supply chains needed to forge innovative solutions that keep the world connected.

Executive Leadership Sam Mikles

Sam Mikles


As President and CEO of Flash Global, Sam Mikles is a visionary who led the company’s transformation from a traditional (transaction-based) 3PL to a world-class provider of service supply chain (integrated) solutions. Sam brings a unique blend of 25 years of experience in effectively leading growth, change, and ensuring long-term profitable results across global service and logistics organizations.

As an accomplished and impactful leader, Sam works closely with Flash management to ensure value is realized by customers, employees, partners, and shareholders. He is the leading executive on Flash Global’s Board of Directors, formulating the absolute best-in-class strategies and solutions for some of the world’s largest organizations. He continues to play an active role in leading Flash’s global teams that are strategically positioned around the globe in five regional customer response centers, with 700+ forward stocking locations and 15 multi-client distribution centers found across six continents in 140+ countries.

Sam has a wealth of business acumen and brings over two decades of experience in the global service logistics industry, having designed, built, and implemented global service and support solutions for some of the world’s most recognizable OEMs in the high-tech space. Under his leadership at Hitachi Data Systems, Symantec previously Blue Coat Systems, and Dell previously EMC, Sam was able to guide his team of employees to design, build, and implement global leading-edge service and support solutions that supply superior performance and directly contribute to the company’s revenue acceleration, profitability growth and ultimate customer satisfaction.

As a pioneer in the logistics and supply chain industries, Sam continues to inspire Flash to create innovative solutions that drive impactful results for our customers. Building upon the momentum of the company’s transformational growth, Sam and his executive leadership team continue working to drive value, accelerate profitable growth and improve the service portfolio of the Flash network.

Greg Castello

Gregory Castello

Chief Financial Officer

Greg Castello brings more than 25 years of financial and operational acumen with a number of successfully viable private and public global organizations to Flash Global, where he has led the finance and administration transformation. Throughout his successful career, he has demonstrated his ability to guide strategic focus, reporting, planning and analysis while optimizing those organization’s achievements and potential.

Greg’s financial stewardship is inspired by his success in numerous CFO roles in both domestic and international business climates driving corporate growth, profitability, and operational improvement. Over the course of his career and leadership, Greg has efficiently engineered several notable M&A transactions and new investments across multiple industries, including telecommunications, software, financial services, and logistics.

During his tenure at Flash, Greg spearheaded the development of treasury management, budgeting, financial planning and reporting strategies to improve business health, visibility, profitability, and return on investment. He looks forward to continuing to collaborate on the company’s achievements and accelerating its growth. Greg is a CPA and holds a Six Sigma Green Belt certification.

Denise MacDonell

Chief Technology & Marketing Officer

Denise MacDonell, an expert in change management with a proven track record of shaping software applications to drive value-added services to customers, took over as Chief Technology Officer in 2016. Denise’s strategies, vision and ability to leverage technology and people to create a collaborative, efficient environment that always puts the customer first — after all, Flash is in the services business —is crucial to our success.

Throughout her 15-year career, Denise has led and worked in turnaround and startup efforts with small, midsize and Fortune 100 companies. As vice president of Product Management for This Technology, Denise led the company’s transformation from an engineering-driven organization into one driven by product and software innovation. That successful evolution led Comcast Corporation to acquire This Technology in 2015 and Denise was appointed VP of Advertising Software, a role she held until coming to Flash.

Dan Silva

Chief Customer Officer

Dan began working at Flash Global in 2015 and brings more than 20 years of business acumen from previous leadership roles with renowned original equipment manufacturers (OEMs) and prominent aftermarket service organizations. Initially, Silva was tasked with developing what is now known as Flash’s Customer Care Team and he was additionally responsible for developing the company’s customer experience business strategy. He has helped Flash drive client intimacy through technology and the optimization of tools and resources that help drive a proactive client service model.

Within a three-year timeframe, Dan’s blueprint adopted business intelligence technology and implemented a customer-centric consultant business model to advance the Customer Satisfaction (CSAT) and Net Promoter Scores (NPS) to the highest in Flash’s history. Moreover, he worked to create a best-in-class status across the global transportation and logistics industries for the organization.

Dan’s previous experience with service enterprises, operations strategy and key account management helped him to successfully lead business teams focused on customer experience strategies for international organizations. In these earlier roles, Silva’s responsibilities included establishing repair inventory planning applications and operations for enterprise and consumer service models.

During his career with Flash, Dan intends to explore new methodologies and build upon his prior experience by creating a customer-centric organization that leverages data analytics to drive proactive support options for customers that add value across the global service supply chain.

In his spare time, Dan enjoys golfing, gardening, and hiking. He also finds pleasure in spending time with family and friends and being a volunteer with the Special Olympics.

Kris Michel

Chief Operating Officer

Kris Michel joined Flash in 2019 as Chief Operating Officer to oversee the company’s operations and lead major business initiatives. With a consistent track record for driving organizational revenue acceleration and EBITDA growth, her career has spanned several high-profile roles from Fortune 100 to turnaround mid-sized companies. In every role she has held – from CFO to COO – Kris has a keen instinct for leading teams to implement and execute effective programs and solutions, coupled with her entrepreneurial spirit and global business perspective.

Throughout her tenured and accomplished career, Kris has frequently provided guidance to large scale change management initiatives, that directly resulted in step-function improvements in operational performance, margin enhancements, and increased revenues. In her past positions, Kris has been a pioneer in creating a global support organization, by transforming call center and customer service center operations, and identifying cost saving measures to aid in an exceptional customer experience.

Kris’ approach to being a successful leader blends her strategic vision with her tenacity and sharp business acumen. She welcomes the opportunities and challenges that await as Flash guides each customer through the ever-changing landscape of the global service supply chain.

Discover Solutions

Take a look at our end-to-end solutions for your after-sales service supply chain!

Global Solutions, Locally Fueled

140+ countries served
700+ forward stocking locations
100k same-day deliveries annually
450k next-day deliveries annually

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