How do I benchmark subcontractors and suppliers?

Selecting and managing subcontractors well is one of the highest-leverage decisions on any construction project, but most organisations make those decisions based on gut feel and a tender price rather than systematic performance data from past contracts.

Bildstak turns your historical project records into a supplier intelligence layer:

Performance dimensions Bildstak tracks per subcontractor:

• Cost — actual unit rates delivered vs. tendered, and variation frequency as a share of subcontract value.
• Schedule — programme adherence: did activities under their scope finish on time? What was the average delay?
• Quality / coordination — BCF clash count attributable to their packages; RFI volume they generated vs. volume they caused.
• Claims — how often did they submit claims or disputes, and at what quantum relative to contract value?

How to use it:

1. Connect completed-project data — cost ledgers, P6 schedules, Procore/Aconex RFI registers, BCF exports. 2. Tag expenditure and activities to the relevant subcontractor (via cost codes or WBS node). 3. Ask "rank our concrete subcontractors by cost performance across the last five projects" — Bildstak returns a cited comparison table. 4. Filter by project type, region or contract value bracket to make the comparison like-for-like.

The output feeds directly into tender evaluation: a subcontractor's past performance in your own portfolio is more reliable than a reference letter. It also supports supplier performance reviews during the contract, surfacing early signals of underperformance before they become claims.