The 52-year-old woman, who lives in Littleover, was awarded Her Majesty’s title for her transportation services during the Covid-19 pandemic.
Karen volunteered to work through the pandemic and was praised for helping her fellow drivers through the crisis.
The bus driver said it was “an absolute honor” to receive the award.
“And that’s really a thank you to everyone who worked,” she said.
“This is for the team that worked so well together and recognizes everything we have done to get our customers where they need to be. ”
Karen, who is halfway through her mental health and wellness training, said it has been gratifying to help her colleagues through a difficult time.
“It was good to be able to help my fellow pilots,” she said.
“They know they can come talk to me and we can share what we’ve been through. ”
Jeff Counsell, chief executive of trentbarton, said it was a well-deserved award.
“It’s a huge reward for Karen,” he said.
“She epitomizes all that is great about our drivers, who have diligently served their communities throughout the coronavirus pandemic.
“Karen was really there for her clients when they needed her the most. And she was there for her fellow drivers as well, supporting them throughout the lockdown and beyond.
“During the pandemic, everyone at trentbarton has played and continues to play their role in ensuring that we are there when our community needs us and that our key workers have been protected.
“It was wonderful to see the whole team come together, including the driving team, engineers, back office staff and local depot teams. We couldn’t be more proud of Karen and the whole team. “