SubBase is a construction procurement software designed to simplify the intricate processes involved in managing materials and equipment across various teams, including field, purchasing, accounting, operations, and warehouse management. Users in the field can easily request materials from any device, utilizing preloaded catalogs, conversational AI, or even by submitting pictures of handwritten lists, with cost codes predetermined for convenience. The purchasing team benefits from the ability to send out requests for quotations (RFQs) to several suppliers, enabling them to compare live pricing, automatically standardize quotes, divide orders, generate purchase orders, and dispatch these to chosen suppliers within mere seconds. By introducing live logs and a centralized messaging system, SubBase replaces the need for disjointed communication methods such as emails, texts, calls, and spreadsheets, thereby ensuring that field crews, administrative personnel, and vendors remain synchronized. Additionally, a mobile-first approach to delivery tracking allows for real-time receipt captures and employs automated processes to identify discrepancies against purchase orders. The invoice reconciliation process is further enhanced by integrating a centralized accounts payable inbox, AI-driven line-item matching, cost-code verification, and customizable approval workflows, which streamline financial oversight and accountability. Overall, SubBase significantly enhances the efficiency of construction procurement, allowing teams to focus more on their core tasks and less on administrative burdens.