Arc builds voice AI agents purpose-built for drive-thru ordering, handling accents, background noise and customizations. Its platform adds an intelligence layer with AI-powered upselling, A/B testing across locations and an analytics dashboard, integrating directly with POS systems. Arc reports 95%+ order accuracy, 3-7% lifts in average order value and 5-10% improvements in order accuracy from live deployments. Founded by Square and Cash App veterans Mike MacLennan and Ali Hussain, the company raised a $10.76M seed round led by Andreessen Horowitz.