Electro Technik Industries, Inc. (ETI) is a forty-two year old, privately held company that specializes in the design and manufacture of passive electronic components. ETI owns and operates several subsidiary companies in the passive component field. They are organized into three distinct business groups that focus on capacitors/filters & resistors (wirewound & metal film), RF/microwave components, and magnetics/transformers. ETI is registered to ISO 9001 at all of its manufacturing/design facilities.