Q-Park GB, which is based on Merrion Street in Leeds, has gained the Investors in People Silver status award.
The award to the European car park company, which is accredited by the UK Commission for Employment and Skills, was attained after a six day assessment via interviews involving 47 employees from the Leeds head office and other sites across the UK.
The company met a further 87 evidence requirements above the Standard award to obtain the Silver status.
Adam Bidder, managing director of Q-Park GB, said: "The whole of the Q-Park team see this as recognition of our hard-working teams across the UK.
"The higher level of accreditation we have achieved since our last award is testament to the success of our business and people management strategies."