What is EstimateOne?

EstimateOne (E1) is a cloud-based enquiry management and tendering platform used by the Australian commercial construction industry. It serves three main parties.

For subcontractors, EstimateOne (E1) is a subcontractor’s best source of first-hand commercial construction tender projects. With an EstimateOne account, subcontractors can create a profile, search active tenders by trade, location, and other parameters, and submit quotes directly to builders. Subcontractors can also connect directly with builders to build relationships and source future project opportunities. Unlike other tender aggregation platforms (e.g. Tenderlink and Australian Tenders), E1 gives subcontractors direct access to exclusive and first-hand tender opportunities that aren’t posted anywhere else.

E1 also serves estimators working for commercial construction head contractors. It helps them manage tender enquiries, communicate with subcontractors and suppliers, and maintain a competitive win-loss ratio during the pre-construction phase.
Finally, E1 helps commercial construction suppliers connect with subcontractors and builders during the pre-award tender phase of construction. Suppliers can search for active specifications, look at years of historical data, and connect with all parties in the process to build and protect their specifications – ultimately so they can win more work.
Founded in Australia and now active in the UK and New Zealand, E1 supports thousands of subcontractors, suppliers and estimators each month in coordinating trade packages and quotes.

Who Uses EstimateOne?

EstimateOne is designed for both sides of the commercial construction tendering process:

Head Contractors

For head contractors and commercial builders, EstimateOne helps:

  • Estimators at Tier 1–4 firms manage large volumes of trade packages
  • Pre-construction teams centralise and streamline subcontractor communication
  • Project teams ensure quote coverage, reduce email overload, and track subbie engagement

Subcontractors and Suppliers

For subcontractors and suppliers, EstimateOne makes it easier to:

  • Get visibility on live projects being tendered in their region
  • Receive trade package invitations from verified main contractors
  • Respond quickly to RFQs and submit quotes directly through the platform
  • Build a Company Profile to showcase capability, capacity, and credentials to win more work
  • Track tender opportunities and manage quote requests from one central hub

With over 100,000 subcontractors using EstimateOne globally, the platform helps them stay organised, discover new jobs, and grow their business pipeline—without relying on messy email chains or missed phone calls.

What Problems Does It Solve?

  • Subbie comms chaos: Centralises subcontractor responses in one platform.
  • Missed quotes: Tracks all responses, with reminders & status updates.
  • Overloaded inboxes: Reduces email reliance with in-platform messaging.
  • Risky procurement: Enables better subcontractor qualification through Company Profiles.

What Makes EstimateOne Different?

Unlike generic tendering tools or procurement software, EstimateOne is purpose-built for subcontractors, suppliers and estimators. It integrates seamlessly with their workflows without overcomplicating them.

E1 vs Asite, Causeway, Conquest

  • Lightweight and fast to adopt
  • Focused on subcontractor management, not full project lifecycle
  • No long onboarding or IT dependencies

E1 vs Tenderlink, Australian Tenders

  • Not simply a tender aggregator or notification service – E1 has exclusive tender/project data, enabling subcontractors, suppliers and builders to connect and exchange quotes/information directly
  • E1 offers subcontractors and suppliers free account tiers, so you can try the platform and get a feel for how it works before committing to a paying plan.

Customer Results

“Since using E1, we’ve reduced the time spent chasing subbies by over 40%. The coverage is better, and our team spends more time reviewing quotes instead of rounding them up.”

Senior Estimator, AU builder

“Watchlist updates and notifications about award projects alert me to every project we’re specified on. I can keep track of everything and miss nothing.”

Hytek Framing, Australia

 

FAQ

What is EstimateOne used for?

EstimateOne helps commercial construction subcontractors search for live tenders and submit quotes directly to builders; it helps builder estimators manage trade packages, communicate with subcontractors, and streamline tendering; and it helps suppliers investigate and win specifications on active commercial construction projects.

Is EstimateOne only for Australia?

No. EstimateOne is available in the UK, Australia, and New Zealand.

Does it replace estimating software like Conquest?

No. E1 complements traditional estimating tools by improving subcontractor communication and quote coordination.

See how E1 can help you here, based on the type of business you are.