For Developers · Owner Reps · Government Project Sponsors

Stop trusting the GC's word.

12 projects in parallel. Monthly reports arrive stale and contractor-narrated. Variations stack up. The delay claim looks plausible — but is it? An independent forensic workforce audits every tender, validates every schedule slip, risk-scores every redline before you sign.

A developer's office: pipeline pinboard and pitch deck on the left, Vonbuild's portfolio P&L dashboard on the right

Left — the monthly report assembled by the GC · Right — the independent audit Vonbuild produces

Today vs tomorrow

Information-asymmetric today. Equipped tomorrow.

Today

The GC controls the narrative.

Every project status comes from the GC. Every cost report. Every delay justification. They have the site, the staff, the data. You have monthly traffic-light dashboards three weeks after the fact. When a 30% overrun arrives in month 12, forensic reconstruction takes your team six weeks of senior time.
Steering committee Wednesday: you defend a line you can't independently verify.
With Vonbuild

You audit in real time.

The workforce ingests the GC's P6 schedule, their daily reports, their invoice batches, their proposed redlines — and runs independent forensic analysis across all 12 projects. Their narrative meets your data. The conversation moves from "trust me" to "the workforce found three claims you under-billed and one delay you should not own."
Steering Wednesday 7am: independent portfolio brief on your screen. You walk in with the most current picture in the room.
The cross-functional superpower

Three Masters. One verified version of the truth.

The GC's tender. The GC's schedule. The GC's redlines. Three Masters, three independent audits, one consolidated brief — before the next steering.
01
Master Procurement

Forensics on the 5 GC tenders.

5 GCs responded. Master Procurement runs bid-rigging forensics across the 24-month history — coordinated pricing patterns, suspicious withdrawals, capacity-share signals. Flags 2 bidders worth interrogating. Trigger: tender closing Monday.
02
Master Operations

Independent delay analysis.

The winning GC claims 47 days of EOT due to "owner-caused delay." Master Operations ingests their P6, runs forensic windowed delay analysis against the as-planned baseline, identifies that 31 of those days are GC-attributable. Defensible counter-position assembled. Elapsed: 2 days vs 2 weeks senior.
03
Master Legal

Risk-scores every redline.

The GC sends back their proposed contract redlines. Master Legal scores every change against your house standard — flags the limitation-of-liability cap that's been quietly halved, the consequential damages waiver, the indemnity carve-out. Defensible counter-redlines drafted. Elapsed: 4 hours.
Result · One brief, three independent audits
vs. 3 weeks of consultants

The conversation with the GC just changed.

Tender risk · independent delay attribution · contract risk-score — assembled into one decision brief for steering. You walk in with the audit. The GC walks in knowing they walk in with the audit. €2.4M in disputed exposure recovered. Future redlines pre-negotiated. Margin protected.

Live process · Cascade

One signal. Five masters. One decision.

From a single revised drawing on OneDrive to a fully reconciled, evidence-backed decision in your hands. Three minutes. Zero meetings.

Signal

14:32 — a revised structural drawing lands in OneDrive.

The structural engineer uploads rev 3.2 of the plan for beam P-12. The section changed from B22 to B25. Nobody emails you. Nobody schedules a meeting. The system detects the event and wakes up.

Source: OneDrive · rev_3.2_structure_beam-P12.pdf
Routing

The system reads the drawing. Identifies 5 impacts. Dispatches.

The plan change affects structural loads, cost estimation, material procurement, contract eligibility, and project planning. Each department receives its specific sub-task — automatically. No human decided who should work on what. No email chain. 312 milliseconds.

5 departments activated · 312 ms · 0 human input
5 departments. In parallel.

Each one produces a concrete deliverable.

Sales recalculates the bill of quantities. Operations updates the Gantt and finds the slip. Procurement flags the steel order to re-consult. Engineering runs the EC3 verification inside Robot. Legal checks amendment eligibility and drafts the notification letter. Five outputs. Three minutes. All sourced.

MASTER
Sales
+€48K
DPGF delta — gros œuvre +€12.4K, fondations +€3.8K
dpgf-delta-rev3.xlsx
MASTER
Operations
+11 days
Critical-path tasks T-12 (formwork) and T-15 (pour) impacted
planning-rev3-delta.gantt
MASTER
Procurement
Reorder
PO-23-447 — S355 steel lot LV-3, 3 suppliers to reconsult
procurement-impact-rev3.md
MASTER
Engineering
EC3 ✓
Beam P-12 section B25 verified, utilization 68%
calc-poutre-P12.report.pdf
MASTER
Legal
VC-024
Variation eligible — CCAP Art 9.2, notification by May 19
avenant-rev3-draft.docx
5 deliverables produced · all traceable · all sourced
Convergence

5 analyses. One impact note. Ready to validate.

The outputs converge into a single cross-domain impact note: +18% structural loads on foundation FF-3 · +€48,300 total (gros œuvre + fondations) · Amendment eligible under CCAP Art 9.2 — 15-day notification window · +11 working days on critical path · Steel lot LV-3 must be reordered. Every line is sourced. Every document is linked. Every number is traceable to the agent that produced it and the tool that computed it.

1 consolidated impact note · 5 evidence chains
Validation

You open your laptop. The analysis is already done.

Three minutes after the drawing landed in OneDrive, the complete cross-domain impact note is waiting for you. Engineering verified. Cost recalculated. Contract eligibility checked. Planning updated. Notification letter drafted. You read the summary. Check the evidence links. Click Approve. The notification letter goes out. The timeline logs the decision. The procurement agent starts the reorder process.

3 minutes · signal to decision · 45 seconds of human time
7 days later. No human involved.

Tuesday, May 13. You forgot about this. The system didn't.

During the original analysis, the Sales department noticed the subcontractor had not acknowledged the variation claim. It scheduled a follow-up: check acknowledgement in 7 days. Seven days pass. You are on a different project, a different floor, a different problem. At 09:00 on May 13, the system wakes itself up. It checks whether an acknowledgement email has arrived. It has not. The agent drafts a follow-up letter, attaches the original claim reference, and submits it for your approval. You did not set a reminder. You did not write a post-it. The system remembered because that is what it does.

T+3minT+7 DAYS LATER · auto-fired
Auto-fired · T+7 days · 0 human reminders · 0 missed deadlines
Admissible · Provable · Defensible

How to sleep at night.

You hold investor capital. The audit needs to hold. Four guarantees that survive the board meeting and the post-incident review.
Guarantee 1 · No made-up numbers

Zero hallucination on financials.

If the agent can't reconcile a line, it reports back — never fabricates. Every overrun number traces to source invoice + BOQ line + site measurement. Defensible in front of investors and auditors.
Guarantee 2 · Independent audit trail

Hashed. Logged. Stand-alone.

Your portfolio audit is your audit — not derived from GC narratives. Every input document, every analysis step, every figure produced — SHA-256 hashed, timestamped, JSON-exportable for forensic review.
Guarantee 3 · Human in the loop

The AI prepares. You decide.

No external email to the GC fires without your approval. No redline counter-position leaves without your sign-off. The workforce assembles the position; the decision is yours. Liability stays with your team.
Guarantee 4 · Your tenant, your boundary

Portfolio data never leaks.

Tenant-resident execution inside your M365 / Google Workspace. Your cap-stack data, your investor pipeline, your acquisition pipeline — never leaves your boundary. On-prem option for the most sensitive funds.
Live demo · Guarantee 3 in motion

This is what "you counter the GC" looks like.

Independent forensic audit complete. Counter-position drafted. The GC's address is pre-filled. The modal blocks. Your click sends it. The agent assembles the receipts; the negotiation is yours to lead.
Works where you work

No new portal for your team to maintain.

The workforce ingests what your GCs already send and operates the systems your investment team already trusts.
Operates inside your stack
Microsoft 365SharePointPower BIProject OnlineSalesforceProcorePrimavera P6Plus custom MCP (SAP / Navision / in-house)
Ingest the GC's data
P6 schedules, monthly reports, invoice batches arrive in your SharePoint. The workforce ingests automatically.
Steering deck output
Consolidated portfolio brief lands in Power BI / your board template. Same format you ship to investors today.
Enterprise MCP
Custom connectors to your fund accounting system, capital tracker, in-house ERP. Built by our architects, audited per call.
For your investment committee

How to justify Vonbuild to the IC.

Don't pitch an AI subscription. Pitch a yield-protection layer. Three bullets your CFO can repeat.
Bullet 1 · Overrun catch
3–5%
of project value typically lost

"We catch overruns at month 3 instead of month 12."

Industry pattern: 3–5% of project value lost to untracked variations, supplier overbilling, schedule-slip claims the GC under-attributes. With continuous workforce audit: caught early, contested in time, recovered. One avoided 5% overrun on a €100M project covers the platform for a decade.
Bullet 2 · IC velocity
20 min
portfolio brief vs 3 days

"We walk into IC with the current picture, not last month's."

The consolidated portfolio brief — every project's schedule, cost, risk, change-order status, reconciled and time-stamped — assembles on the morning of the steering meeting. Decisions are made on data that's hours old, not weeks. Acquisitions move faster. Disposals get re-priced before the market does.
Bullet 3 · GC leverage
×2–3
disputed exposure recovered

"The GC negotiates differently when they know we can verify."

When the GC submits a 47-day EOT claim, they used to walk away with most of it because contesting cost more than conceding. With independent forensic analysis ready in 2 days, the negotiation shifts. Aggressive claims get withdrawn. Reasonable ones get settled fairly. The asymmetry inverts.
Live demo · Independent audit graph

12 projects. One independent view.

Every GC's submitted schedule, every cost report, every redline — audited in parallel against the as-planned baseline. The view your IC reads at month-end, not your GC's monthly narrative.

3 contributors · 3 SharePoint departments · 1 shared project graph

Each user uploads their own folder. The Vonbuild knowledge graph stitches everything together — automatically, with cognitive confidentiality.

Numbers are industry benchmarks (Monograph 2025, Part3 2025, claim-recovery industry consensus). Calibrated to your portfolio in the demo.

Start with the project that's quietly slipping.

The one where the GC's monthly report says "on track" but your gut says otherwise. Drop the project folder. The independent forensic audit lands tomorrow morning.