The building will become the UK and distribution headquarters for American-owned Reiser.
The building, in Maidstone Road, Kingston, has been completed by regional real estate developer Hampton Brook. It is a key part of Reiser’s growth programme.
Reiser has supplied processing and packaging equipment to the sausage, meat, poultry, seafood, prepared food, bakery and cheese industries for nearly 60 years.
Its high-quality equipment and innovative engineering has taken the company to market leader status and led to the move to larger premises at Kingston, Mr Watson said.
The bespoke facility is the result of a shortage of quality available property, said Hampton Brook development director Ian Jackson.
He added: “With other competing locations across the UK looking to attract inward investment, we are excited that through our ability to deliver a bespoke facility for Reiser, we have been able to retain yet another international firm in Milton Keynes.”
Reiser’s decision to expand within Milton Keynes has been welcomed by the council. Head of economy and culture Pam Gosal said: “It is great to see significant US inward investments into Milton Keynes, enabling the city to continue to deliver good quality employment opportunities.”