Cosuno
Construction tendering instead of a hundred emails - European alternative based in Germany
Quick Overview
| Company | Cosuno |
|---|---|
| Category | Construction Management Software |
| Headquarters | Berlin, Germany |
| EU/European | Yes - Germany |
| GDPR Compliant | Yes |
| Main Features | Tendering & bid management, Subcontractor network, Bid comparison |
| Pricing | Subscription by company size |
| Best For | Contractors and developers running subcontractor tenders |
| Replaces | Procore bid management, BuildingConnected, email and spreadsheets |
Detailed Review
Cosuno is a Berlin platform for the tendering phase specifically: packaging the work, inviting subcontractors, collecting and comparing bids, and awarding — the part of construction still largely run through email attachments and spreadsheets.
What Makes Cosuno Stand Out
Cosuno targets the stage where the money is actually decided. Its subcontractor network means invitations reach firms outside the buyer's usual list, and structured bid comparison makes it visible when the cheapest offer has excluded half the scope.
What the Platform Covers
Tender package creation and distribution, a network of subcontractors by trade and region, structured bid collection and side-by-side comparison, award workflows and an audit trail of the whole procurement.
European Practice and Jurisdiction
Cosuno is based in Berlin with German hosting. Tender data is commercially sensitive on both sides — prices, margins, capacity — which makes vendor jurisdiction a competition question, not only a privacy one.
Construction software holds evidence. Site diaries, defect records and progress data are what a liability dispute or a payment claim is argued from years later, and the format a European client or court expects is not the format an American product produces by default.
Pricing
Subscription scaled by company size and tender volume; subcontractors participate without a licence, which is what makes the network work.
Cosuno vs Procore and the US Platforms
Against Procore bid management, BuildingConnected, email and spreadsheets, the European case is fit rather than scale. Documentation obligations, tender practice and handover expectations differ by country, and a platform built inside those conventions produces output that is accepted rather than output that then has to be rewritten.
Who Should Use Cosuno
Cosuno fits contractors, developers and project managers who tender work regularly and currently do it by email.
Pros and Cons
Pros
- Covers the tendering stage specifically
- Subcontractor network beyond your usual list
- Structured side-by-side bid comparison
- Audit trail across the procurement
- Subcontractors participate without a licence
Cons
- Does nothing once the site starts
- German market focus
- Value depends on network coverage in your trades
- Subscription scaled by tender volume
Alternatives to Cosuno
Looking for other European construction platforms? Here are the alternatives worth comparing:
Frequently Asked Questions
Cosuno is based in Germany and operates under European data-protection rules including the GDPR. Site records name individual workers and subcontractors, so that jurisdiction covers personal data as well as commercial documentation.
Cosuno is based in Germany. We list European construction platforms because the documentation they hold is evidence in disputes governed by European law.
Tender package creation and distribution, a network of subcontractors by trade and region, structured bid collection and side-by-side comparison, award workflows and an audit trail of the whole procurement.
Subscription scaled by company size and tender volume; subcontractors participate without a licence, which is what makes the network work.
Cosuno is a European alternative to Procore bid management, BuildingConnected, email and spreadsheets, built around European documentation and tender practice rather than adapted to it.
Offline capability is the first thing to test in this category, because half a building has no signal in it. PlanRadar and BulldozAIR are both built for capture without a connection and sync afterwards. Whatever you shortlist, trial it in a basement rather than in the office.