The nursery employees, who have completed NVQ level four management qualifications, were presented with certificates by Otley principal Philip Winfield.
John Woods managing director John Lord said: "Training makes organisations more effective, productive and competitive. It helps staff feel more valued and gives them the skills that they need to progress.
"I would like to thank Otley for both this event and the training. We look forward to continuing to work with them for many years to come."
Winfield said the college worked with thousands of students from hundreds of local businesses.
"Every time a student successfully completes a qualification it is a great reason to celebrate as far as we are concerned," he added.
John Woods honorary president and former Otley governor Charles Notcutt also took to the stage to congratulate the staff.