Baxter Healthcare will occupy 9,700 sq ft of office space at the 20 Kingston Road.
20 Kingston Road is a 45,000 sq ft office development in Staines town centre.
Baxter Healthcare is medical, biotechnology and pharmaceutical company and will take space across the fourth and fifth floors.
The property, which has been owned by M&G Real Estate since April, is also home to Centrica.
Baxter Healthcare was represented by JLL.
M&G Real Estate was advised by New Ballerino and CBRE.