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Bildstak

Project intelligence for AEC

Ask the question that spans your whole project.

BIM models, contracts, schedule, cost, RFI register, specifications, and documents. All connected. One question in plain language. One cited answer.

The problem

A typical project has data in twelve places.

Twelve systems, one question.

BIM in Revit or Speckle. Coordination in BCF. Cost in Maconomy or SAP. RFIs in Procore. Documents in SharePoint. Schedule in Primavera. Answering a simple project health question means logging into six tools and reconciling them by hand.

The data team is six months out.

Most AEC firms do not have one. The ones that do are buried in backlog. Every new dashboard is three weeks of waiting.

The cost is real.

McKinsey, KPMG, and Dodge Construction Network independently put the cost of information bottlenecks at 8 to 15 percent of project value. On a $100M project, that is $8M to $15M.

Sources: McKinsey, Reinventing construction through a productivity revolution (2017); KPMG, Global Construction Survey (2023); Dodge Construction Network, Industry Insights (2022).

What Bildstak does

Nine modules. One platform.

Each module solves a specific pain. Together they share one data layer.

Claims Builder

Building a variation or EOT claim means cross-referencing RFIs, schedule slippage, contract clauses, and cost across five systems by hand.

Assembles the cause, RFI notice trail, schedule slippage evidence, entitlement clauses, and cost quantum into one cited package.

A defensible claim in minutes.

Cost-loaded schedule and EVM

The schedule says 60% complete. The cost says 72% spent. Nobody knows which number is right.

Roll BoQ pay-item rates onto P6 activities. Earned value and cost variance update as actuals flow in.

Live project health. No manual reconciliation.

RFI and instruction register

RFIs sit across Procore, email, and a tracking spreadsheet. Nothing flags what is overdue or who has the ball.

A live register with overdue flags, ball-in-court tracking, and a full audit trail of every status change and instruction.

Nothing slips. Every instruction is logged.

Specification tracker

The head contract specifies C30/37 concrete. A supply contract says C25/30. The conflict surfaces on pour day.

Track specifications component by component across all contracts. Flag where contracts disagree before the conflict becomes an RFI.

Catch conflicts weeks before construction.

Submittal schedule generator

Submittal deadlines are calculated manually from milestone dates with lead time buffers nobody keeps current.

Back-calculate submit-by dates from your programme and agreed lead times. Regenerate when milestones move.

A defensible, re-plannable submittal schedule.

Portfolio performance

Project directors review six separate dashboards to find the project that needs attention.

Rank every project by cost variance, overdue RFIs, and claim exposure in one view. Benchmark supplier delivery rates across projects.

See the worst project and supplier at a glance.

Estimation

Unit rate estimation relies on memory or a spreadsheet from three projects ago.

Benchmark pay-item unit rates from your own completed projects. Confidence ranges from actual data, not gut feel.

Estimate from what you actually paid.

3D model and Element Inspector

The model exists. The cost data exists. The RFI exists. Finding the connection takes an hour.

Click any element in the 3D viewer. The Inspector surfaces every linked row from every source: BCF clashes, Procore RFIs, COBie entries, cost actuals.

The model becomes a queryable index of the whole project.

AI-assisted reporting

The Monday morning status report is assembled by hand from five sources every week.

Ask for a project health cockpit. Bildstak assembles it. Schedule the PDF to land in inboxes before 7am.

The report builds and sends itself.

How it works

Cause. RFI. Slippage. Clause. Cost. Connected.

The Claims Builder shows this most clearly. A piling delay is discovered on site. The RFI is raised in Procore. The schedule impact appears in Primavera. The contract clause is in the PDF. The cost is in Maconomy. Bildstak traces the chain from cause to quantum in one question, citing every source.

Underneath, every BIM element carries a stable IFC GlobalID. Bildstak indexes your whole project by it. When BCF references an element, when Maconomy ties a cost line to a component, when Procore raises an RFI against a wall, Bildstak joins them. Click a wall in the 3D viewer and the Element Inspector surfaces every linked row across every source.

Read the federation whitepaper
BIM modelBCF issuesERP costGlobalIDAnswer

Built for your project type

Two project types. One platform.

Vertical building and BIM

For VDC managers, BIM coordinators, and project controls teams on building projects. Element Inspector across IFC, BCF, IDS, and COBie. Speckle and Autodesk APS native. Clash tracking, handover quality scoring, and submittal management built in.

See it for building projects
Heavy civil and infrastructure

No BIM model required. Bildstak connects your P6 schedule, Maconomy or SAP cost data, Procore or Aconex project management, and contract documents. Claims Builder, cost-loaded EVM, and RFI register purpose-built for civil and infrastructure delivery.

See it for civil projects

How it works

Connect. Ask. Act.

  1. Connect every source.

    Native connectors for IFC, Speckle, Autodesk APS, BCF, IDS, COBie, Procore, Aconex, Maconomy, SAP, Google Sheets, Excel, PostGIS, and your project document library. Thirty-plus source types. No middleware required.

    Diagram of Bildstak connectors linking BIM, coordination, cost, ERP, and document sources

  2. Ask in plain language.

    Bildstak reads the question, pulls from every connected source at once, and returns the answer as text, a chart, a table, a map, or a highlighted element in the 3D model. Every answer cites its sources.

    DisciplineElementStatus
    MechanicalDUCT-L3-014Open
    StructuralBEAM-S2-118Open
    ElectricalTRAY-L2-077Resolved
    PlumbingPIPE-L1-042Resolved
  3. Act on the answer.

    Pin the answer to a dashboard. Build a claim package. Schedule a report to land in inboxes at 7am. Export to PDF, Excel, or CSV. Every action is logged to the audit trail.

Deployment and security

Cloud, customer-VPC, or air-gapped. Same product.

Cloud SaaS.

Multi-tenant. Hosted in AWS Canada Central or Hetzner Helsinki. Data residency is set per customer.

Customer-VPC.

Single-tenant in your AWS or Azure account. Your data never leaves your infrastructure. SOC 2 evidence available.

Air-gapped on-premises.

Runs entirely on your own machines, with the AI model on-site. For classified, defence, and regulated environments. Same chat experience, fully offline.

Built on AEC standards

If buildingSMART maintains it, we support it.

Bildstak is a contributing buildingSMART member.

IFCBCFIDSCOBieSpeckle

Security and compliance

Procurement-ready from day one.

  • SOC 2 Type I attestation, Q4 2026. Type II in progress.
  • GDPR aligned. PIPEDA aligned. Data residency in Canada and the EU.
  • Role and persona-based access control. Project-level and portfolio-level permissions. Every action logged to an immutable audit trail.
  • SSO via SAML and OIDC. Encryption at rest and in transit.
  • Customer-VPC and air-gapped deployment for the security teams who need them.
Read the full security posture

See it on your stack.

Bring your IFC, your BCF export, and your cost data. We will run the demo on your real project.