A fleet management and leasing firm is expanding its base on Blythe Valley Park in Solihull.
Zenith has agreed a ten-year deal for 20,635 sq ft in One Central Boulevard which is currently is undergoing a £5 million refurbishment.
The addition adds an extra 5,500 sq ft to its existing space.
Chief executive Tim Buchan said: "It's essential for us as a business to be able to bring our clients in by rail, bus and car.
"The decision to extend our lease at Blythe follows a range of recent decisions that we have made about the future of our office space."
A phased programme of refurbishment work is being carried out at One Central Boulevard by contractor Overbury while the wider Blythe Valley Park is the subject of a major extension which will include a new hotel and around 750 homes.
Rob Hemus, asset manager at the park's owner IM Properties, said: "Blythe forms a significant part of IMP's portfolio in the Midlands and, as a local property company, we all take a great deal of pride in the development of the business park and its success.
"Zenith's decision to remain at the business park and expand its offices is extremely important to us.
"They have been part of our journey to deliver first class facilities since we took over the park in 2014."