Street Eats is creating 300 jobs at its new £4m 40,000 sq m sandwich factory due to open in West Drayton by June.
The new factory, which is situated on the Stockley Close business estate, is set to boost capacity and enable the company to distribute across the UK.
Chief executive Paul Bates said, “The new factory represents a very significant investment and really serves to underline the commitment of our investment partners to developing the Street Eats Food to Go business.
“Our factory in Chester is operating at almost full capacity and as we continue to win new business we have been looking for a new site for some time. Stockley Close is ideally located, just off the M4 and M25 and within minutes of Heathrow and this fantastic new facility gives us a very strong platform for growth over the years ahead.”