Knopp Inc. is a design and manufacturing company located in Emeryville, California, USA (alongside beautiful San Francisco Bay). We have been in business since 1928 -- if you're counting, that makes 2016 our 88th year. Our primary products are transformer test equipment, precision voltage and current transformers, and electrical instruments. Our customers include electric utilities; manufacturers of transformers and electric motors; government (federal, state, and municipal); and professional electricians.

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