Rick Haviland has served as president of MarketSource since 2009 and has been instrumental in developing the company’s relationship-driven culture grounded in high-performance teams, advanced technology, and thought leadership. 

Haviland has spent over 20 years within Allegis Group’s family of brands, holding strategic leadership positions at Aerotek, TEKsystems, and Allegis Global Solutions (AGS). During his time at AGS, he served as president, where he was responsible for building a strong corporate culture and played a crucial role in the creation of the global workforce management company it is today.

At MarketSource, Haviland is a firm believer in building mutually beneficial, long-term relationships with team members and clients. His strategic vision and innovative thinking continue to position MarketSource as an industry leader in sales outsourcing.

Mark Mueller serves as chief financial officer, providing strategic leadership through the planning, analysis and management of MarketSource’s financial performance, investments and capital allocation.

Mueller is responsible for the business functions of accounting, business planning, investments, budgeting, legal, compliance, risk management, technology and administration. The strategic mindset and creative thinking he has brought to MarketSource over the last eight years have led to increased operational efficiency and financial growth for the company.

Prior to joining MarketSource, Mueller spent over 10 years in various financial roles within Allegis Group’s family of brands.

Vinay Nayak serves as vice president of retail and is responsible for the development and execution of MarketSource’s retail sales and operations. He joined MarketSource after spending 24 years at Aerotek, a fellow Allegis Group company, working with a variety of Fortune 500 clients.

Nayak began his career as a recruiter at Aerotek and then moved into an account management role to start Aerotek’s clinical staffing division in New Jersey. He has subsequently held various leadership roles, most recently as vice president of strategic sales and operations, where he was responsible for overseeing the strategic initiatives and business development efforts for Aerotek’s largest national customer accounts.

Shelton Guinn serves as vice president of human resources (HR), delivering an organizational strategy that attracts talent; engages and retains employees; and develops future leaders. He oversees HR, employee training, talent development, corporate social responsibility, communications, and diversity and inclusion (D&I).

Guinn began his career at Aerotek—an Allegis Group company—over 20 years ago, where he was key in establishing and building the D&I program. His various leadership roles within Allegis Group demonstrate his ability to drive strategies that support MarketSource’s employees and clients today.

He is a member of the National Association of African-Americans in Human Resources; serves on the planning committee for the Black Engineer of the Year Awards; is on the board of directors for Junior Achievement; is a member of PEER150 and serves on executive advisory boards for the National HBCU Business Deans Roundtable and Bowie State University.