The most Santa Clara County, California businesses for sale listings including franchises, opportunities and businesses. Browse 263 businesses for sale in Santa Clara County, CA on BizBuySell.Buy Or sell A Santa Clara Business On BizBen. Browse 3 Santa Clara, CA business assets for sale on BizQuest. Buy or sell your Business Assets with BizQuest, the Original Business for Sale Website. You must submit a paper filing and a supplemental form to the Assessor's Office. Both forms are on our e-filing site. The purchase and sale agreement for the business entity or assets is a vital document.