Hammarlund was founded in the 1920s, by Oscar Hammarlund in Manhattan.

Sold to Telechrome in the late 50s

Sold to Giannini Scientific.

In the late 60s, Giannini sold the company to Electronic Assistance Corporation

Sold to Cardwell Capacitor Corporation.

The factory closed around 1972.

Hammarlund Manufacturing Company
A Giannini Scientific Company

Historical Address:
Hammarlund Manufacturing Company
73-88 Hammarlund Drive
Mars Hill, North Carolina 28754

Hammarlund Manufacturing Company – Export Division
13 E. 40th Street
New York, New York 10016