


Welcome to A1 Associates, a trusted name in the electrical sales industry. With a rich heritage as the successor of Diset Import Export Corporation established in 1982, we have been serving the Utilities industry and acting as a reliable purchasing agent for a select clientele. With over 40 years of solid experience, we are dedicated to meeting the diverse needs of your company.
At A1 Associates, we are proud to be the authorized seller of United TRS Electric Transformers, the industry leader in electric transformer manufacturing. Our extensive range of high-quality electrical transformers is available for sale in the United States and Mexico, ensuring reliable and efficient power distribution.
In addition to our exceptional transformer offerings, we specialize in fulfilling the specific parts and equipment requirements of various sectors, including power generation and transmission, water treatment, mining equipment, gas and petroleum exploration, as well as refineries. Our extensive network enables us to source top-notch petrochemical solutions and products from around the world, serving clients globally.
Partner with A1 Associates for all your electrical sales needs. Experience our unparalleled commitment to quality, reliability, and customer satisfaction. Contact us today to explore our comprehensive range of products and discover how we can power your success.

Our reach extended far and wide, serving esteemed clients across multiple countries and industries. We have had the privilege of working with important industry players such as Altos Hornos de México, S.A.B. de C.V. (AHMSA), Abocol, Amocar, Ecopetrol, Cementos Caribe, Corelca, Electransa, Electricaribe, Empresas Públicas de Medellín, Empresa de Energía de Bogotá, Emcali, Monómeros Colombo Venezolanos, Promigas, Quintal, Shell & Union Carbide Zona Franca, Sideboyacá, Sidepacífico, Tebsa, Termocartagena, Terpel, Unial, Concoto, AFD Associates Food Distributors, Minera Nicaragüense Greenstone, BID – Banco Interamericano de Desarrollo Paraguay, Tecnoelectric, Proyectos & Montajes, US Embassy Paraguay, Southern Peru - Compañía Minera del Sur, Standard Metals Recycling, Shelmet Corporation, Gulf Coast Recycling, Bauxilum, CVG – Corporación Valle Guayana, among others.
Our commitment to empowering industries knows no boundaries. Through our extensive network and partnerships, we have provided comprehensive solutions and support to companies across the globe, including those in mining and energy sectors, where our mining equipment and electrical transformers play a crucial role. From public utilities to petrochemical solutions, our expertise has been instrumental in driving success and facilitating growth for our valued partners.
Partner with us and experience the advantages of our trusted relationships, industry knowledge, and proven track record. Contact us today to explore how we can collaborate and power your industry's success on a global scale.
Open today | 09:00 am – 05:00 pm |
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