Amersham Biosciences Corp. leased 25,000 square feet of flex space at 14 Walkup Drive in Westborough, MA, for 10 years. This lease allows the company to expand to the full measure of the building -- 100,000 square feet of flex space on one main level. The building features eight loading docks, 17' ceilings and heavy power. Amersham develops solutions for disease research, drug discovery, drug development and drug manufacture. The corporation signed a lease to occupy 75,000 square feet at this location in June of last year. Marc Verreault, Bob Bowen and Chris Hannon of Carruth Capital LLC represented the company in-house as the landlord. Tim Lescalleet and Jeff Walker, both formerly with The Codman Co., represented the tenant. Walker is currently with The Staubach Co.