Niwa, Inc. is conveniently located in the heart of Silicon Valley, the high tech capital of the world. We are located south of the beautiful city of San Francisco. We are also close to Napa Valley - the largest producer of fine wines in the world, city of Monterey/Carmel and Lake Tahoe. We can be reached in any of the following ways: Contact Us Niwa, Inc. P O Box 666 Los Altos, CA 94023 USA Email: info at niwainc.com