Millipore Sigma

United States

SIGMA COMPANY LIMITED

Australia

Sigma Tau I.f.r S.p.a.

SIGMA-TAU RESEARCH INC

United States

Sigma-Aldrich Production GmbH

Switzerland

SIGMA-ALDRICH PTE. LTD.

Singapore

Sigma-Aldrich Co. Ltd.

United Kingdom

Sigma-Tau Research Switzerland SA

Switzerland

Sigma-Tau Industrie Farmaceutiche Riunite SpA

Italy

Robert Brummer

Germany