AOS by Saqara is a digital construction tendering and procurement management platform designed for real estate developers, general contractors, architects, and subcontractors. The software provides a centralized environment for creating, distributing, tracking, and evaluating construction tenders. Project owners can organize tender packages, upload specifications and pricing documents, invite qualified contractors, and monitor submission deadlines. Its contractor directory helps procurement teams discover construction companies based on their capabilities, project experience, and relevant trades. Automated notifications inform project participants about new invitations, updated documents, submitted proposals, and other tender activities. Bid comparison tools generate editable Excel reports that enable users to evaluate contractor proposals by individual work package or across an entire project. Construction companies can download tender documents, submit quotations, upload supporting records, and review their bidding history through dedicated accounts. Collaboration features include project dashboards, centralized messaging, configurable user permissions, secure document storage, and electronic signatures for construction contracts. AOS by Saqara supports the full tender lifecycle, helping construction stakeholders coordinate procurement activities, maintain organized records, and manage communications with project partners.