Contract intelligence for construction

Your contract live: In action. Connected.

Every obligation. Every notice. Every deadline. Always.

Ostrena reads the entire contract you actually signed — special conditions, annexures and all — and in real time connects the project team to ensure you always comply with the contract, never miss a deadline, and never miss an entitlement.

See what it does ↓

The problem

Hundreds of clauses. Information overload. Not enough time in the day.

Phone calls, emails, messages, site changes, meeting minutes, subbie claims, supplier delays, weather events, design changes, interface changes, and the laws and standards moving underneath all of it. Every one of them can trigger a contract obligation or entitlement, and they all could have a time, cost or risk impact.

It's not a competence problem. It's a capacity problem, in an industry short of experienced people.

Right now it's managed from memory, spreadsheets and inbox history.

33.4%of contract budgets in dispute

65.8%of planned schedule claimed as extensions of time

5–10 daystypical notice window before a time bar under amended Australian contracts

HKA, CRUX Insight, 8th annual report, 2,200+ projects in 114 countries. Notice windows reflect common amended AS 4000 and AS 2124 practice.

What Ostrena does

Not a repository. Not a chatbot. A system of record for the contract you actually signed.

1. Reads the whole contract.

Conditions, special conditions, annexures, schedules and incorporated documents, from the executed terms alone. It never assumes a standard clause is there or works the standard way.

2. Tracks every notice and time bar.

Each regime mapped with its trigger, timeframe, required content and recipient. Deadlines counted from the day the event happens, not the day someone checks.

3. Shows its working.

Every answer cites the clause it relies on, is verified before it is used, and says so when the contract is silent or unclear.

Who it's for

Built for the people administering the contract, not the people who drafted it.

Head contractors

Commercial teams stretched across multiple projects and dozens of subcontracts.

Subcontractors

Back-to-back time bars, no contracts staff, and the most to lose.

Consultants and project teams

Engineers and site managers asked to administer a legal document they didn't write.

Works with AS 4000, AS 2124, AS 4902, GC21, NZS 3910, FIDIC, NEC and bespoke forms, amended or not.

Built for commercially sensitive data

Your contract data stays yours, and stays in Australia.

Australian data residencyHosted in Sydney. Encrypted in transit and at rest.

Full audit trailEvery user action and system output logged and version-controlled.

Least-privilege accessRow-level security by organisation, project and role.

Enterprise-ready by designBuilt toward SOC 2 and ISO 27001 readiness.

Built by a commercial manager who has spent 25 years administering exactly these contracts.

Pilot places open ahead of launch.

Australian contractors get first access. One email when your place is available. No newsletter.

Your details are used only to contact you about Ostrena. Data held in Australia.