Based in the Western United States, Hill Brothers Chemical Company sales in recent years have been in excess of $45 million. Hill Brothers provides a variety of chemical products to the industrial and construction markets. Its specialty is the marketing and sales of specialty and/or commodity products into a variety of markets. Hill Brothers supports and is a member, both regionally and at a corporate level, of a variety of trade associations, including Chemical Industry Council of California, Chemical Marketing Association and Ammonia Safety Training Institute. Hill Brothers was established in 1923. Headquartered in Orange, Calif., Hill Brothers Chemical Company operates from facilities in Arizona, California and Utah.