1854
S&H receives an order to supply a railway telegraph to Philadelphia.
1886
Henry Villard becomes the first agent.
1892
S&H founds Electric Co. of America in Chicago; two years later the factories are destroyed by fire.
1904
Liquidation of Electric Co. of America.
1908
An information office is founded under the direction of K.G. Frank.
1919
Siemens’ interests are represented by Frank’s New York company Techno Service Corp.
1921
Adlanco Industrial Products Corp. is founded as a Siemens agency.
1924
The first exchange of experience contract is signed with Westinghouse.
1933
The office is renamed Siemens Inc.
1954
Siemens Inc. is renamed Siemens New York Inc.
1962
Siemens New York Inc. is renamed Siemens America Inc. (SAI).
1963
SRW founds Siemens Medical of America Inc.
1970
SAI and Siemens Medical of America Inc. merge to form Siemens Corp. with headquarters in Iselin, New Jersey
1972
A major order is received from Western Union Telegraph for electronic switching equipment.
1982
Siemens Corp. splits up into Siemens-Allis, Siemens Components and Siemens Medical Systems.
1986
A joint venture is formed with General Telephone & Electronics Corp. (GTE).
1989
The sales company Rolm is formed as a joint venture with IBM for the sale of private communication systems.
1992
Four U.S. power plant companies merge to form Siemens Power Corp.
1998
Siemens takes over the power plant business of Westinghouse.
2001
Siemens shares are sold for the first time on the New York stock exchange.
2002
Four Siemens Groups join to equip Houston's Reliant Stadium with communication systems, fiber-optic switching gear, building automation, fire protection, security systems and light rail.
2004
The acquisition of USFilter, the leader in water and wastewater systems, brings Siemens into a new industry.
2005
Disney and Siemens form a 12-year strategic alliance.
2006
Siemens purchases Diagnostics Products Corporation (DPC) and Bayer Diagnostics, making the US unit of Siemens Medical Solutions the world's first full service diagnostics company.