Vanguard AG was created to support Tulare AG Products, Irrigation Matters and Cal GAP by revolutionizing the way in which the companies organize themselves, work and give information to growers.

Vanguard AG is made up of five companies (retail & wholesale) focused on providing growers with the best products, services, recommendations, and equipment available in the marketplace. Each company operates and specializes in a specific area of agriculture, but work closely together to ensure that decisions made are what is best for the grower and the future of the farming industry.

As the foundation of the TAP Family of Companies, Tulare Ag Products’ retail division was founded to provide growers with sound agronomic advice and innovative fertilizers. Our services, branded fertilizers, and proprietary products have consistently helped growers improve crop yield and quality in both conventional and certified organics. We provide full service delivery and application support within our service area.


Irrigation products, services and equipment to support California growers dealing with poor water quality, irrigation maintenance and water management.

Source To Source is a unique wholesale company because it is an entity of a retail company. Our product line is based on agronomic and economic returns through years of using the products in our retail business. We have experienced the results of our products first-hand, and have created our products in order to meet the high expectations of our growers. This experience is passed on to our Source To Source dealers.

CAL G.A.P. was established to provide information for growers to implement Good Agricultural Practices.  From soil, tissue and water sampling to EC Soil Mapping to Soil Solution Monitoring, we provide you with the services and information to grow quality crops with improved fertilizer and irrigation efficiency, reducing waste and expenses.