MCI USA is a global marketing and engagement agency that provides strategic solutions and professional services to corporations, associations, and nonprofits through event management, strategic planning, marketing and communications, housing and registration services, and technology. "MCI has been around a little more than 35 years, and we're a global engagement company with 60 offices in 31 countries around the globe," offers Chris Williams, Senior Vice President of Registration and Housing. MCI's offers end-to-end services for events of all sizes, from small meetings to large-scale conferences and trade shows.