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Exhibit 8.1


Subsidiaries of the Registrant
Legal Name of the Subsidiary
Jurisdiction of Organization
weekengo GmbH
Germany
trivago Hong Kong Ltd.
Hong Kong
Trivago Hotel Relations Spain S.L.U
Spain
trivago Ltd
UK
trivago Deals Ltd.
Israel
Holisto Inc.
Delaware, USA
Holisto UK Limited
UK
HLST Ireland Limited
Ireland
Holisto Philippines Inc.
Philippines
Holisto Canada Ltd.
Canada