Leidos has taken 21,000 sq ft at Monarch Court, Emersons Green, Bristol.
The firm, which is set to deliver logistics services to the Ministry of Defence, has signed for a term of 13 years. Quoting rent at the site is £16.50 per sq ft.
Leidos is currently fitting out the office space and will open the site in July.
Hannah Waterhouse, associate director at JLL’s Bristol office, said: “The site is well placed for not only the MoD, but for Bristol Parkway station, Bristol & Bath Science Park and the motorway network at a time when out-of-town supply is diminishing.”
JLL acted for Leidos and the landlord, Sterling House Estates.
