Oxigen Environmental say they are making every effort to retain the 120 jobs at their West Dublin base.
The waste management and recycling company said it is "business as usual" as a fire at the Ballymount plant continues to smoulder.
The Dublin fire brigade has been working at the scene since the early hours of yesterday morning.
The Environmental Protection Agency has launched its own investigation with a number of senior EPA officials on site.
Martin Harrell, director of human resources and communications for Oxigen Environmental, said they are making every effort to retain jobs.
Mr Harrell said: "We do have people that work in the building that was damaged by the fire and we have 25 different locations around the country.
"Every effort will be made to re-locate people as much as possible."
The recycling company currently services nine counties: Cavan, Laois, Offaly, Dublin, Louth, Waterford, Kildare, Meath and Westmeath.