EXHIBIT 8.1

Subsidiaries

    JURISDICTION OF
    INCORPORATION
ENTITY   OR ORGANIZATION
MakerBot Industries, LLC   New York
Stratasys Solutions Ltd.   England
Stratasys AP Limited   Hong Kong
Stratasys Direct, Inc.   California
Stratasys GMBH   Germany
Stratasys, Inc.   Delaware
Stratasys Japan Co. Ltd.   Japan
Stratasys Korea Ltd.   Korea
Stratasys Latin America Representacao De Equipamentos Ltd.,   Brazil
Stratasys Mexico S.A. de C.V.   Mexico
Stratasys Shanghai Ltd.   China
Stratasys Powder Production Aps.   Denmark
RP Support Ltd.   United Kingdom