What is the phone number for customer support for enterprise services? 1-888-812-2591 Connect with our Enterprise support team for billing questions or technical support needs Client support available 8:00 a.m. to 9:00 p.m. ET, Monday - Friday Technical Support 24/7How do i contact enterprise for car rental? In addition to car rental, Enterprise also oversees commercial fleet management, used car sales, and commercial truck rental operations. Email Customer Care on [email protected] How do i contact enterenterprise fleet management? Enterprise Fleet Management. 1-877-233-5338; Maintenance Program Information. 1-800-325-8838