Selection
Which tender criteria are supported by bidder evidence, and which remain unresolved?
Construction / AEC / Vietnam
VN Tender
From Tender to Payment.
Every Decision Grounded in Evidence.
AI-assisted procurement and construction project intelligence for owners, consultants and project-management teams in Vietnam.
Connect tender evidence, design / BIM, quantities, cost and schedule with acceptance and payment checks across one construction project.
Currently under internal development. BIM integrations are on the roadmap.
- Tender AICriteria · Bid evidence · Selection
- Design & BIM AIDesign · Models · BOQ connections — roadmap
- Project Control AIQuantity · Cost · Schedule · Field progress
- Payment AIContract · Acceptance · Payment checks
Developed by DOAN NGUYEN COMPANY LIMITEDVietnam · Founded 2023
01 / What VN Tender does
Different records.
The same project.
Tender criteria, drawing revisions, BOQ, site reports and payment requests describe the same project. VN Tender is developing workflows to compare these records using their source evidence, versions and applicable rules.
Project control
Do executed quantities, reported progress and cost records tell a consistent story?
Payment
Is the requested amount supported by the contract, accepted work and previous payments?
Who this work is for
For project owners and developers, procurement and project management consultants, construction management teams, infrastructure investors and foreign-invested enterprises operating in Vietnam.
The development direction draws on procurement and construction workflows: procurement consulting in Vietnam, tender consulting, contractor selection, investor selection and construction project management.
02 / From tender to payment
One project.
One evidence trail.
One evidence trail across the project lifecycle.
- Tender
- Design / BIM — roadmap
- Project Control
- Acceptance / Payment
The development goal is to carry the same project evidence across stages, rather than re-entering data and interpreting it independently at every handover. Design / BIM connections remain roadmap work.
03 / AI project intelligence
Four pillars.
Connected project control.
Currently under internal development
Four connected product pillars under internal development or on the roadmap. Project Control connects BOQ, quantity, cost, schedule and field evidence to acceptance and payment.
Current development
Tender AI
Turn complex tender documents into structured, verifiable decision workflows.
From criteria to selection
- Understand tender / RFP / HSMT / HSYC documents; extract structured criteria and bidder qualifications with evidence.
- Support contractor selection, investor selection and bid evaluation workflows with tender compliance and rule checks.
- Cross-check related documents, detect missing or conflicting evidence, and link conclusions to source documents.
- Support procurement planning, tender document preparation, procurement review, evaluation and appraisal documents, and contract documentation.
Roadmap / future workflows
Design & BIM AI
Connect design and model information with commercial and project-control data.
Document connections — roadmap
- Design-document intelligence, drawing / document organization and design revision / version traceability.
- Link design information with BOQ and project records.
Model connections — roadmap
- Model metadata extraction, BIM-linked quantities and BIM-to-BOQ comparison.
- Project-document / model search, issue and clash intelligence.
- 4D schedule linkage, 5D cost linkage and model → quantity → schedule → payment traceability.
Current development
Project Control AI
Control quantity, cost and schedule from the same evidence base.
Quantity / BOQ
- Parse BOQ and estimate data into work items, units, quantities and prices; compare BOQ versions and detect unusual quantities or values.
- Compare contract quantity with actual and accepted quantities, track quantity variance for BOQ verification.
Cost / contract
- Track contract value and amendments / variations, plus actual cost data when available.
- Compare cost variance and prepare cost forecasting / risk indicators for professional review; support cost control and contract management.
Schedule / progress
- Structure planned schedule activities, actual progress, delayed activities, milestones and schedule variance; use dependencies where the data supports them.
- Connect progress to quantities and field records: site records, progress reports, minutes and related evidence; support progress monitoring and project documentation.
Cross-control / review
- Compare quantity progress with schedule progress, and actual progress with reported progress.
- Surface quantity / cost / schedule inconsistencies and early-warning indicators for review.
- Carry executed and accepted quantities with their evidence into acceptance documentation and payment verification. Human professionals decide cost or schedule adjustments.
Current development
Payment AI
Verify each payment against contract, quantity and acceptance evidence.
Terms / quantities / cumulative payment
- Extract contract terms and payment conditions; connect contract scope with BOQ, contract value and amendments.
- Compare accepted quantities with payment requests, cumulative quantities, previous payment and the current payment request; flag potential overpayment and contract-value overrun.
- Check supporting-document completeness.
- Track advance payment, recovery of advance, retention and warranty / security-related records where applicable.
Product direction / roadmap: cash-flow forecasting from available contract, progress and payment records.
04 / Evidence-grounded verification
A conclusion you can
trace to its source.
Critical project decisions should be traceable back to source evidence.
- Source documents / project data
- Structured extraction
- Evidence linking
- Rule validation
- Cross-document verification
- Human review
- Output / decision support
No evidence, no conclusion.
Important conclusions must remain traceable to supporting evidence. Missing or conflicting information stays open for professional review.
AI supports extraction, document understanding, classification, summarization, cross-document reasoning and structured generation.
Deterministic rules validate numerical values, thresholds, date logic, quantities, contract values, payment checks and applicable compliance rules.
Human professionals review critical conclusions and remain responsible for final decisions.
Evidence-first
Retain the source document, page, table or relevant record.
Rules + AI
Use deterministic checks where critical conditions can be defined.
Cross-document verification
Compare related documents and surface inconsistent information.
Human-in-the-loop
Keep professional judgment responsible for decisions.
Auditability
Follow a conclusion back to the rule, data and source evidence.
05 / Core workflows
Connected records.
Verifiable work.
Conceptual workflows that carry source evidence from selection through project control to payment review and controlled deliverables.
Cross-document information
Tender documents · Bids / proposals · Contracts · Drawings · BIM · BOQ · Schedules · Site records · Acceptance records · Payment documents
Target source coverage. BIM and model-linked checks are planned development.
Tender evidence review
Compare structured tender criteria with bidder qualifications and source evidence for contractor or investor selection. Record gaps and contradictions before supporting evaluation and appraisal workflows.
- Tender requirement
- Bid evidence
- Rule + cross-check
- Human review
Construction payment verification
Project Control supplies the actual and accepted quantities. Payment review compares the current request with the contract, BOQ, acceptance evidence and previous cumulative payment. Human professionals approve the outcome.
- Contract
- BOQ
- Actual quantity
- Accepted quantity
- Payment request
- Previous cumulative payment
- Validation
- Human approval
Document automation
Product direction: structured data → reusable templates → Word / Excel deliverables.
- Structured data
- Reusable templates
- Word / Excel drafts
Tender documents, evaluation reports, appraisal reports, contracts, acceptance records, payment records and project reports.
Generated drafts retain their source references and require professional review.
06 / About
A Vietnam-based initiative.
A transparent foundation.
VN Tender is a Vietnam-based initiative focused on procurement and construction project intelligence.
Developed by DOAN NGUYEN COMPANY LIMITED, Vietnam.
Company details below use the owner-provided information. Confirm the exact registered English name and complete the missing registration details before publication.
- Developed by
- DOAN NGUYEN COMPANY LIMITED
- Founded
- 2023
- Country
- Vietnam
- Legal English name confirmation
- [CẦN BỔ SUNG]
- Tax code
- [CẦN BỔ SUNG]
- Registered address
- [CẦN BỔ SUNG]
07 / Contact
Let’s discuss the work
behind your project.
Discuss your tender evaluation, quantity / cost / schedule controls or payment evidence workflow with the VN Tender team.
Contact links open your email application. This static website has no contact form, accounts or document uploads; its source includes no analytics or tracking scripts.