Delta Air Lines has again earned a spot among the world’s leading brands after being named today as one Most Admired Companies for the fifth consecutive year.

Among its competitors, Delta was named Most Admired Airline, rated No. 1 on the industry list for the seventh time in the past eight years.

Delta CEO Ed Bastian credited the award to the dedication of the airline’s 80,000-person workforce. “Your hard work has earned Delta a reputation for world-class customer service, unmatched operational excellence and a culture that puts people first,” he wrote in a memo to all employees.

The airline rankings are based on the results of a global survey of industry executives, boards of directors and analysts who are asked to rate companies in their industry based on criteria including innovation, investment value and global competitiveness.

Most Admired Companies is just the latest accolade for Delta. The airline was recently named the Wall Street Journal’s top U.S. airline, 2017’s Most On-Time Global Airline, a Fortune Blue Ribbon Company, Glassdoor Employees Choice employer and more.

What makes Delta a most admired company?

Companies are ranked by leaders across industries on the following attributes, as well as their overall reputation.

Delta ranked #1 in seven of the eight categories among airlines:

• Innovation
• People Management
• Use of Corporate Assets
• Quality of Management
• Social Responsibility
• Financial Soundness
• Long-Term Investment Value
• Quality of Products and Services
• Global Competitiveness