From scattered project records to traceable contract control
CASAI is a Construction Contract Intelligence platform. It connects quantities, supporting evidence, reviews, decisions, commercial outcomes and history in one traceable workflow, giving project teams clearer accountability, stronger commercial control and better decision support.
Trusted by organisations across construction and infrastructure
When information is disconnected, governance becomes reactive
Scattered evidence
Bills of Quantities, calculation records and comments live in multiple files, versions and email threads.
Unclear decision history
It is hard to show afterwards who approved what, when and on what evidence.
Late approvals and variances
Outstanding items, follow ups and financial variances are discovered only after they have grown.
Weak portfolio overview
Management gets a late and simplified picture of the projects, and learning between projects is limited.
Follow the whole chain from quantity to commercial decision
Quantity
The Bill of Quantities and the contract items form the base. Submissions are registered against the right item.
Evidence
Calculation records and supporting evidence are linked to every submission and item.
Review
The parties involved review the same evidence, with clear roles and status.
Decision
Decisions are documented with a timestamp, an accountable person and the underlying evidence.
Financials
Approved, remaining and deviating value is followed continuously as the basis for forecasts and payment documentation.
History
The whole chain is preserved and can be followed long after the work was carried out.
Better control in the project. Stronger governance across the portfolio.
Traceable documentation
Evidence, comments, changes and decisions are linked to the right item and preserved over time.
Verifiable commercial settlement
It is clear what evidence is required before a quantity or cost can be approved.
Clearer accountability
Roles, status and history make it clear who needs to act and what decision is required.
Portfolio insight
Structured project data can be used for comparison, risk indicators and management information.
See what is pending, what has changed and why the decision was made
Follow the contract sum, changes and forecast in the same view. Behind every figure there is evidence, a review and a decision that can be followed and explained.
Modules in CASAI
Contract Regulation
Bring the Bill of Quantities, measurement submissions, supporting evidence, reviews, decisions and financials together in one traceable workflow.
- Valuation against the Bill of Quantities
- Measurement submissions with verifiable evidence
- Traceable history and financial overview
Notices & Decisions
Structure contractual notices, responses and decisions in a clear status workflow with a preserved history. Compatible with FIDIC based contracts.
- Clear roles and accountability
- Decisions linked to supporting evidence
- Compatible with FIDIC based contracts
BI
Turn structured project data into insight for follow up, comparison and portfolio governance, with AI assisted analysis as decision support.
- Dashboards at project and portfolio level
- Comparable key figures
- AI assistant for analysis, accountable people make the decisions
Mass portal
Share and coordinate excavated masses between projects. A separate module in beta, with a pilot project planned with a larger municipality in autumn 2026.
- A shared list of available masses
- Project, address, material type and time period
- A basis for circular mass management
The same base data. Different governance needs.
Clients
Create a consistent and auditable workflow for commercial contract administration across projects and portfolios.
Contractors
Submit measured work with clear supporting evidence, follow review status and build a stronger basis for timely valuation and payment.
Project management
See status, variances and accountability earlier, without rebuilding the reporting every month.
Executives
Turn structured project data into portfolio insight, early risk signals and more consistent commercial governance.
From fragmented to traceable
Without a shared workflow
- Evidence in different versions, files and email threads
- Decisions and comments scattered across emails and minutes
- Forecasts built on manual compilation
With CASAI
- One shared and traceable workflow
- Decisions documented with evidence, owner and timestamp
- Follow up and forecasts on the same data
Frequently asked questions
What is CASAI?
CASAI is a Construction Contract Intelligence platform for construction and infrastructure projects. It connects quantities, supporting evidence, reviews, decisions, commercial outcomes and history in one traceable workflow.
Who is behind CASAI?
CASAI is developed by Diagona AB, a Swedish specialist company in quantity measurement, commercial contract management and technical project controls for construction and infrastructure projects.
Who uses CASAI?
CASAI is used by public and private clients, contractors and consultants in construction and infrastructure projects, from individual projects to portfolio wide programmes.
How do we get started?
A common first step is a walkthrough or demo based on your projects and contracts. After that, you can start with a single project or a limited pilot before scaling up.
Does CASAI replace Excel and our existing systems?
No, CASAI does not replace every existing tool. The problem is rarely a single file, but that quantities, evidence, comments, decisions and financials cannot be followed as one connected chain. CASAI structures the contract related process where the information needs to stay connected.
How does CASAI use AI?
CASAI uses structured project data as the basis for AI assisted analysis in the BI module. Users can ask questions, summarise information and identify patterns. Accountable people review the material and make the decisions.
Start with one project, a data review or a portfolio walkthrough
We start from your projects, contracts and ways of working and show how CASAI can be used in your organisation.