DIAGEO Demand has been named the Best Large Workplace in Ireland for the first time, pushing four-time winner Microsoft into second place.
The awards were presented by Minister for European Affairs Lucinda Creighton in the Burlington Hotel in Dublin.
Alan Cox, the managing director of Core Media, a media buying group, was named Ireland's Most Trusted Leader at the 11th Best Workplace Awards.
Ms Creighton commended the organisations for "creating high-trust workplaces". She said this leads to "a clear competitive advantage – especially when trading internationally".
The Great Place to Work list "highlights organisations that create and maintain an environment of trust in the workplace", according to a spokesman.
Confectionery giant Mars Ireland won the Best Medium-sized Workplace award while estate agent Jones Lang LaSalle was Best Small Workplace.