Exhibit 21.1 Subsidiaries Lionbridge Technologies, Inc. Subsidiaries - ------------------------------------------------------------------------------------------------------------ Name Jurisdiction of Name under which Subsidiary Incorporation or Organization does Business - ------------------------------------------------------------------------------------------------------------ Lionbridge Technologies Holdings, B.V. Netherlands Lionbridge Technologies - ------------------------------------------------------------------------------------------------------------ Lionbridge Technologies, B.V. Netherlands Lionbridge Technologies - ------------------------------------------------------------------------------------------------------------ Lionbridge Technologies, S.A.R.L. France Lionbridge Technologies - ------------------------------------------------------------------------------------------------------------ Lionbridge Technologies Ireland Ireland Lionbridge Technologies - ------------------------------------------------------------------------------------------------------------ Lionbridge Japan K.K. Japan Lionbridge Technologies - ------------------------------------------------------------------------------------------------------------ Lionbridge Technologies Canada Inc. Quebec, Canada Lionbridge Technologies - ------------------------------------------------------------------------------------------------------------ Lionbridge do Brasil Brazil Lionbridge Technologies - ------------------------------------------------------------------------------------------------------------ Lionbridge US, Inc. Delaware Lionbridge Technologies - ------------------------------------------------------------------------------------------------------------ VeriTest, Inc. Delaware VeriTest - ------------------------------------------------------------------------------------------------------------ HuanQui TongLian China VeriTest - ------------------------------------------------------------------------------------------------------------ Lionbridge Technologies Deutschland Germany Lionbridge Technologies GmbH - ------------------------------------------------------------------------------------------------------------ Lionbridge Technologies Ireland Ltd Ireland Lionbridge Technologies - ------------------------------------------------------------------------------------------------------------ Lionbridge Technologies VeriTest UK UK Lionbridge Technologies Ltd - ------------------------------------------------------------------------------------------------------------