CDK Global - CDK Global provides integrated computing solutions to auto, truck, motorcycle, marine, and recreational vehicle dealers.

Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.

MPK Automotive Systems - Car Dealer

Chargebee - Chargebee lets you manage subscriptions and payments at scale, handle custom recurring billing scenarios, reduce subscription churn and simplify accounting.

SYS&GO - SYSANDGO Software Ltd. is a software development company that has developed a modern intelligent Dealer Management System (DMS) for car dealers.

Killbill - Open-Source Subscription Billing and Payment Platform