ClaimStack - 2026 Pricing, Features, Reviews & Alternatives

ClaimStack is a cloud-based, SaaS commercial management platform built for the construction industry. It captures commercial events once and keeps procurement, contracts, variations, payment claims, cashflow forecasting, cost reporting, and document management connected across a single unified workflow. Fixed, cost-plus, and open-book contract models are supported, making the platform applicable across head contractors, subcontractors, consultants, clients, and developers of all business sizes. A free collaborator tier allows invited subcontractors, clients, consultants, and suppliers to participate without additional licensing cost. Xero integration is available for financial data connectivity.

ClaimStack consolidates tendering and estimating, purchase orders, subcontracts, invoices, variations management, payment claims, timesheets, approvals, and company financials into one connected system. Documents including drawings, correspondence, and transmittals are versioned and tied directly to contracts and commercial events, eliminating fragmented data across disconnected tools. Cost reports and forecasts update in real time as events occur, replacing end-of-month reporting cycles with continuous commercial visibility.

An AI layer operates on top of the platform's live, connected commercial data. ClaimStack Assistant is included natively, while MCP integration allows approved external AI assistants to read live commercial context. BYO AI support lets construction businesses connect preferred AI tools without rebuilding the underlying data layer. Workflow automation enables the system to follow up on tasks based on known workflow state, and AI-powered insights allow querying across procurement, claims, and forecast data for operational and financial decision-making.