SJW Corp. is a holding company. The Company has four subsidiaries: San Jose Water Company, SJWTX, Inc., SJW Land Company and Texas Water Alliance Limited (TWA), collectively referred as Water Utility Services. The Company has two business segments; Water Utility Services, which is engaged in the business of production, purchase, storage, purification, distribution, wholesale, and retail sale of water through its subsidiaries, San Jose Water Company, SJWTX,Inc. and Texas Water Alliance. SJW Corp.'s real estate investment activity is conducted through SJW Land Company. SJW Land Company owns undeveloped land and owns and operates a portfolio of commercial buildings in the states of California, Texas, Arizona and Tennessee.