(956) 722-0075 - HOLT CAT is Laredo’s authorized Caterpillar dealer for Cat equipment sales, service, parts and rentals. Established in 1933, HOLT CAT sells, services and rents heavy equipment, engines and generators for construction, earthmoving, mining, industrial, petroleum and agriculture. HOLT CAT Laredo sells and services a full line of agricultural machinery, accessories and parts.