Exhibit 8.1

LIST OF SUBSIDIARIES

Company Name            Jurisdiction of Incorporation

Similarweb Inc.            Delaware

Similarweb UK Ltd.            United Kingdom

Similarweb Japan K.K.        Japan

Similarweb Australia Pty Ltd.        Australia

Similarweb Germany Gmbh        Germany

Similarweb France SAS        France

Similarweb SG Pte Ltd.        Singapore

Embee Mobile Inc.            Delaware