Pillar 9 · Subcontracting
Manage your subcontractors and suppliers paperlessly
Purchase orders, subcontractor timesheets, supplier invoices, compliance documents and supplier portal — all centralised in one tool.
Numbered
Each purchase order receives a unique, unalterable sequential number
Automatic
PO-supplier invoice matching with amount discrepancy detection
Portal
Self-service supplier portal to view POs and submit invoices
The problem
Why subcontractor management in construction remains a headache
Paper purchase orders, pencil timesheets, scattered compliance documents — traditional tools create gaps in the subcontracting chain.
Paper purchase orders lost or unsigned on site
No subcontractor timesheet tracking — disputes at every payment application
Compliance documents (certificates, insurance) scattered across emails
Supplier invoices lost — payment delays and penalties
Key features
Everything you need to manage your subcontractors and suppliers
From purchase order to timesheet, every step of subcontracting is tracked, digitised and compliant.
Subcontractor management
Create and manage your subcontractor database with detailed profiles, trades, qualifications and intervention history.
Supplier RFQ & bid comparison
Send one price request (RFQ) to several suppliers at once; each replies through their own portal and the comparison flags the lowest bid to convert into a purchase order.
Digital purchase orders
Create structured purchase orders per lot with automatic numbering, online approval and real-time delivery tracking.
Supplier management
Centralise your suppliers with pricing terms, product catalogues and quality ratings. Compare offers before every order.
Subcontractor timesheets
Record your subcontractor hours by site and day. Site manager validation and automatic export for invoicing.
Purchase invoices
Receive, match and validate supplier invoices by automatically linking them to purchase orders. Alerts on amount discrepancies.
Site-level assignments
Assign your subcontractors to each site with defined periods, amounts and lots. Consolidated view of subcontracting load per project.
Compliance documents
Centralise URSSAF certificates, decennial insurance and Kbis of your subcontractors. Automatic alerts before expiry.
Supplier portal
Give your subcontractors a dedicated portal to view their purchase orders, submit invoices and track payments.
Your week with Constrigo
A typical week: from purchase order to supplier control
Discover how Constrigo structures your subcontracting management day by day, from purchase order to supplier portal.
- Monday
Create a purchase order (PO) for your subcontractor with lots and amounts
Each PO is structured by lot with automatic sequential numbering
- Tuesday
The subcontractor clocks in via mobile, the site manager validates the timesheet
Hours are tracked per site and per day, exportable for invoicing
- Wednesday
Receive and control supplier invoices by matching them against POs
Automatic PO-invoice matching detects amount discrepancies
- Thursday
Check your subcontractors' compliance documents (KBIS, decennial, URSSAF)
Automatic alerts warn you before each document expires
- Friday
The subcontractor views POs and submits invoices via the supplier portal
The self-service portal eliminates paper exchanges and manual follow-ups
Comparison
Constrigo vs traditional subcontractor management methods
| Competitor | Limitation | Constrigo |
|---|---|---|
| Papier / Fax | Paper purchase orders, no delivery tracking, no traceability | Digital purchase orders with online approval and real-time tracking |
| Batigest | No subcontractor timesheets or dedicated supplier portal | Site-level timesheets + supplier portal with invoice submission |
| Outils achat generiques | Not adapted to construction: no lots, no subcontracting compliance, no site link | Built for construction: lots, site assignments, URSSAF and insurance compliance built in |
General contractor director
- DC4 and subcontracting agreements pre-filled from the supplier file — no more copy-pasting between Word and Excel
- Real-time compliance dashboard: ten-year insurance, Kbis, URSSAF, Qualibat — with 30-day expiry alerts
- Retention automatically calculated on each progress payment: 5% deducted, release date tracked
Contracts & legal manager
- Regulatory checklist per subcontractor: prevention plan, URSSAF vigilance certificate, DC4 — nothing falls through the cracks
- Complete history of amendments and service orders: each change tracked, dated, e-signed
- Self-service subcontractor portal: the subcontractor uploads their own documents, you validate in one click
Site manager
- On-site subcontractor time tracking from mobile: hours, zone, task — all geolocated
- Supplier purchase order created in 3 taps: item, quantity, site — emailed to the supplier right away
- Supplier invoice automatically matched to purchase order: variance > 5% flagged before approval
Interface preview
Masonry
- Pre-filled DC4 for each rebar or formwork subcontractor — SIRET, amount, lots entered in 2 minutes
- Daily concrete timesheet: volume poured, crew present, weather — automatic reconciliation with monthly progress payment
- 5% retention tracked per lot with 13-month release date — automatic alert at D-30
I manage my subcontractors by phone and email
One undetected expired document = EUR 15,000 URSSAF fine during an inspection. Constrigo alerts 30 days before each expiry and blocks non-compliant subcontractor site assignments.
DC4 paperwork and prevention plans — way too time-consuming
The DC4 auto-fills from the subcontractor file in 2 minutes. The prevention plan generates from a template and is co-signed electronically. Your subcontractors upload their own documents via the portal.
My subcontractors aren't comfortable with digital tools
The subcontractor portal works like online banking: upload a document, sign a plan, check payment status. 78% of tradespeople already use mobile banking — same logic, same simplicity.
Verified integrations
Pappers
SIRET verification
INSEE
Business registry
Yousign
Subcontractor e-signature
Factur-X
E-invoicing
“DC4 forms, URSSAF certificates, insurance — before it was a paper binder and email chasers. Now the subcontractor uploads documents to the portal, we get alerts when a certificate expires. No more nasty surprises during an inspection.”
Conducteur de travaux
General contractor · Hauts-de-France
Frequently asked questions about construction subcontracting
Everything you need to know about Constrigo's subcontracting module.
Constrigo automatically generates the DC4 subcontracting declaration form from the subcontractor's data (SIRET, KBIS, decennial cover). The document is signed online via Yousign in under 5 minutes and archived in the project folder.
Constrigo automatically generates the DC4 subcontracting declaration form from the subcontractor's data (SIRET, KBIS, decennial cover). The document is signed online via Yousign in under 5 minutes and archived in the project folder.
Yes. Constrigo automatically checks each subcontractor's INSEE/URSSAF compliance every 6 months. Renewal alerts warn you before the KBIS, decennial insurance or mandatory certificates expire.
Yes. Constrigo automatically checks each subcontractor's INSEE/URSSAF compliance every 6 months. Renewal alerts warn you before the KBIS, decennial insurance or mandatory certificates expire.
Constrigo automatically generates a multi-trade prevention plan from the risks identified on site and the trades present. The document is pre-filled and only requires validation from the SPS coordinator.
Constrigo automatically generates a multi-trade prevention plan from the risks identified on site and the trades present. The document is pre-filled and only requires validation from the SPS coordinator.
Yes. Each subcontractor receives a per-site rating based on work quality, deadline compliance and payment history. This rating helps you choose the best partners for your next projects.
Yes. Each subcontractor receives a per-site rating based on work quality, deadline compliance and payment history. This rating helps you choose the best partners for your next projects.
Constrigo centralises all your subcontractors' compliance documents (decennial insurance, Kbis, URSSAF certificate) in a single profile. Automatic alerts warn you before each document expires, and non-compliant subcontractors are blocked from site assignment until their documents are up to date.
Constrigo centralises all your subcontractors' compliance documents (decennial insurance, Kbis, URSSAF certificate) in a single profile. Automatic alerts warn you before each document expires, and non-compliant subcontractors are blocked from site assignment until their documents are up to date.
À propos de Constrigo
Construction subcontracting management: automated DC4, URSSAF compliance and prevention plans
Subcontracting management in construction is a nest of administrative problems: DC4 forms to fill out for every subcontractor on every site, URSSAF checks to carry out, decennial insurance and KBIS certificates to monitor, prevention plans to draft. Constrigo's Subcontracting module automates all of these processes to make you audit-proof.
The DC4 is generated and signed online in under 5 minutes from the subcontractor's data. INSEE/URSSAF checks are performed automatically every 6 months, and renewal alerts warn you before the KBIS, decennial insurance or any mandatory certificate expires. The multi-trade prevention plan is generated automatically from identified risks.
Per-site subcontractor ratings (quality, deadlines, payments) let you select the best partners for each new project. All documentation is archived and accessible in case of an audit. Whether you manage 2 or 20 subcontractors, Constrigo guarantees permanent compliance and protects you against URSSAF penalties.
Simplify your subcontractor management
Purchase orders, timesheets, supplier invoices and compliance — Constrigo centralises the entire subcontracting chain in one digital tool.