12Build
12Build is a Netherlands-based cloud SaaS platform that digitizes pre-construction tendering, bidding, and quotation management, connecting general contractors, subcontractors, and suppliers across Europe with AI-powered document and quote analysis.
- Company typePrivate
- Founded2007
- HeadquartersNijverdal, Netherlands
- Headcount51–100
- GTM typeB2B
- OfferingSoftware
What 12Build does
12Build is a Netherlands-headquartered cloud SaaS platform that digitizes the pre-construction tendering and bidding workflow for the European construction industry. The platform connects three primary personas — general contractors, subcontractors, and suppliers — enabling general contractors to issue and manage tender invitations, compare quotations across work packages, and track bid status in real time, while subcontractors discover projects, respond to structured quote requests, and manage bids across lifecycle stages (Received, In Progress, Calculation, Sent, Rejected, Awarded). Suppliers gain visibility into brand mentions and partner usage in active projects. The platform is built on Amazon Web Services infrastructure (Frankfurt region), is ISO 27001 certified, and supports multilingual access across English, Dutch, Danish, and German.
The underlying technology combines native workflow tooling (12Build Marketplace, Bid Board, 12Build Evaluator, Bill of Quantities with budget rules, Sending Matrix, SSO) with an AI layer built on OpenAI large language models and the Qdrant vector database. Deployed AI capabilities include AI Document Analysis (technical specification summarization), AI Quote Analysis (extraction of price, exclusions, and deviating terms to improve win ratios), AI Project Fit, and Slimme Matching/Slimme Notificaties for proactive subcontractor-to-project routing. The platform integrates with 80+ construction software partners across ERP (SAP, 4PS, Exact Online Bouw, AFAS, Syntess Atrium), BIM (Autodesk Construction Cloud, BIM 360, Bimsync), document management (SharePoint, Dropbox, ByondFiles), identity (Azure AD, Google SSO), and BI (Power BI, Tableau).
The business model is a tiered SaaS subscription. Subcontractors access the platform via a Free tier (limited functionality), a one-time Activation tier at €100 (enhanced profile and visibility), and the Connection tier at €240.75/month or €2,600/year (full AI features and smart notifications). General contractor pricing is custom and undisclosed, implying an enterprise sales motion with annual contracts. Distribution combines self-serve onboarding for subcontractors with a direct sales motion for general contractors, supplemented by an 80-partner integration ecosystem. In January 2026, 12Build was acquired by Australia's E1 (formerly EstimateOne), backed by private equity firm Potentia Capital, operating independently within a combined group that spans Australia, New Zealand, the UK, and Europe. The company reports 83,000+ active users across Europe and 51–100 employees, with headquarters in Nijverdal, Netherlands, under the legal entity 12Build Sales B.V.
12Build firmographics
Firmographics- Name
- 12Build
- Legal name
- 12Build Sales B.V.
- Website
- https://www.12build.com/
- Company type
- Private
- Founded year
- 2007
- Operating status
- Acquired
- Headcount range
- 51–100 employees
- Short description
- 12Build is a Netherlands-based cloud SaaS platform that digitizes pre-construction tendering, bidding, and quotation management, connecting general contractors, subcontractors, and suppliers across Europe with AI-powered document and quote analysis.
- Ownership category
- akta.pro rank
12Build industry classification
Industry- Product category
- Construction Tendering Software
- NAICS
- Business Support Services (5614)
- SIC
- Services-Prepackaged Software (7372)
- akta.pro primary industry
- Procurement Platforms, Catalogs & Contract Purchasing (Co-ops, GPOs, eProcurement) (EDAEAIAO)
Keywords
Where 12Build is headquartered
LocationHeadquarters
- HQ city
- Nijverdal
- HQ country
- Netherlands
- HQ region
- Europe
Offices1 record
Markets served
12Build business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Infrastructure, Marketing or Sales, Operations
Revenue model
- SaaS Subscription - Subcontractor Plans: 12Build generates revenue primarily through SaaS subscription tiers targeting subcontractors and suppliers. The Free tier provides basic access with limited features. The Activation tier is a one-time fee of €100 for enhanced visibility. The Connection tier at €240.75/month (or €2,600/year) includes full AI features and smart notifications. General contractor pricing is custom/quote-based.
- SaaS Subscription - General Contractor: Revenue from general contractors is generated through custom subscription plans, with pricing available upon request. These plans include document management, communication management, subcontractor management, tender management, and marketplace access.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Monthly | Free tier for subcontractors to receive quote requests and respond to published projects |
| Subscription | Multi-year contract | One-time activation fee for enhanced company profile and visibility |
| Subscription | Annual | Full-featured subscription with AI and smart notifications |
Go-to-market motion2 records
Distribution channels4 records
Marketing channels8 records
12Build product offering
Product offeringCore offering
12Build provides a cloud-based SaaS construction tendering and quotation management platform that connects general contractors, subcontractors, and suppliers. The platform centralizes the pre-construction process, including project creation, tender/bid management, document management, quotation comparison, supplier evaluation, and real-time communication. It operates as Europe's largest construction marketplace with 83,000+ active users and integrates AI-powered document and quote analysis tools.
Differentiator
Problem solved
Functional benefit
Products and services
- 12Build Platform (Cloud Tendering Platform) A cloud-based SaaS platform for the construction industry that centralizes tender management, bid management, document management, supplier management, and real-time communication. The platform serves general contractors, subcontractors, and suppliers across Europe with multilingual support (English, Dutch, Danish, German), built on Amazon Web Services with ISO 27001 certification.
- 12Build Marketplace Europe's largest construction marketplace connecting general contractors with subcontractors and suppliers, enabling partner discovery, company profiling, and visibility management. The marketplace supports search for new subcontractors, management of trusted partners, and brand visibility for suppliers.
- AI Document Analysis AI-powered digital assistant that scans technical specifications and documents, generating personalized summaries and extracting key information such as price, exclusions, and deviating terms instantly. Reduces administrative burden by 78% during pilot phase.
- AI Quote Analysis AI tool that analyzes quotations to extract relevant information, helping subcontractors improve win ratios by 21% through better-informed decision-making during the pilot phase.
- 12Build Tender Management Comprehensive tender management solution for general contractors to create projects, manage work items and documents, send offer requests to permanent and new parties, and compare received bids in real time. Includes Publications feature to give projects a stage and attract subcontractor attention.
- 12Build Bid Management Central platform for subcontractors to manage quotation requests across stages (Received, In Progress, Calculation, Sent, Rejected, Awarded), respond to requests, create quotations with budget rules, and respond to public projects via Publications. Provides instant visibility into quotation status.
- 12Build Evaluator Evaluation tool enabling general contractors to assess and review subcontractor collaborations, with automatic supplier profile updates. Provides valuable information from past collaborations to inform future partner selection.
- 12Build Publications Feature that gives general contractors' projects a stage by publishing them publicly to attract subcontractor attention, while enabling subcontractors to view public projects and easily respond to opportunities.
- AI Project Fit (Slimme Matching) AI capabilities that automatically analyze project content to determine whether a project matches a subcontractor's expertise (AI Project Fit) and automatically suggest the most suitable subcontractors or suppliers for a project based on requirements and historical data (Slimme Matching / Smart Matching). Also includes AI-powered Smart Notifications (Slimme Notificaties) that alert users at the right moment to take action.
Quantifiable outcome
- 78% reduction in administrative burden during AI Document and Quote Analysis pilot phase
- +3 more outcomes
Companies that use 12Build
Customer profileNamed customers11 records
Segments3 records
Ideal customer profiles3 records
12Build technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration74 records
Feature14 records
12Build partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- E1 (formerly EstimateOne)coreE1, Australia's and New Zealand's leading tender management platform, acquired 12Build with support from Potentia Capital. The deal brings together two established platforms built on similar principles, enabling shared learnings, increased investment in AI-driven product innovation, and technology capabilities while preserving 12Build's independent identity and leadership team. The combined entity aims to accelerate product innovation and expand into BIM analysis and digital take-offs.
Scale indicators7 records
Recent moves6 records
Expansion highlights6 records
12Build competitors and assessment
Company assessmentBroad incumbents
- Autodesk Construction Cloud: Autodesk Construction Cloud bundles BIM, project management, and bidding (via BuildingConnected and TradeTapp) into a broad platform. As 12Build integrates with BIM 360, Autodesk is both a partner and a broader competitive threat.
- RIB Software (Schneider Electric): RIB iTWO is a major European construction ERP and tendering platform with deep roots in DACH markets where 12Build also operates. It is a broader incumbent with overlapping pre-construction capabilities.
- Procore Technologies: Procore is the leading construction project management platform with bid management as one feature among many. It is a broad incumbent that competes with 12Build for general contractor wallet share but serves a much wider workflow.
Direct peers
- ConstructConnect: ConstructConnect is a leading North American construction procurement platform providing project information, bid management, and prequalification services to general contractors and subcontractors - a direct functional peer to 12Build.
- SmartBid (ConstructConnect): SmartBid is a construction bid management platform focused on invitation-to-bid workflows for general contractors and subcontractors, comparable to 12Build's bid board and tendering features.
- iSqFt (ConstructConnect): iSqFt is a commercial construction bid management platform that helps subcontractors find projects and submit quotations, comparable in workflow to 12Build's bid management features.
- E1 (formerly EstimateOne): E1 is Australia/NZ's leading construction tender management platform and acquired 12Build in January 2026. Both platforms share nearly identical DNA - connecting general contractors with subcontractors for tendering - making E1 the most directly comparable peer and now 12Build's parent.
- BuildingConnected (Autodesk): BuildingConnected is a construction bidding network that connects general contractors with subcontractors for tender invitations, closely mirroring 12Build's marketplace model. Acquired by Autodesk in 2021, it represents the largest North American competitor in the tendering network category.
- PlanHub: PlanHub is a construction bid management platform connecting general contractors with subcontractors through a marketplace-style network, with similar functionality to 12Build's bidding workflow.
- TradeTapp (Autodesk): TradeTapp is a subcontractor prequalification and risk analysis platform, addressing the same supplier evaluation and risk management workflows that 12Build supports through its Evaluator and GraydonCreditsafe integration.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
12Build social profiles
Digital presence12Build financial estimates
Financial estimateRevenue estimate
Valuation estimate
12Build leadership team
Management profileNumber of profiles
Profiles2 records
12Build funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
12Build M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about 12Build
What does 12Build do?
12Build provides a cloud-based SaaS construction tendering and quotation management platform that connects general contractors, subcontractors, and suppliers. The platform centralizes the pre-construction process, including project creation, tender/bid management, document management, quotation comparison, supplier evaluation, and real-time communication. It operates as Europe's largest construction marketplace with 83,000+ active users and integrates AI-powered document and quote analysis tools.
Is 12Build a public or private company?
12Build is a private company. It is classified as private equity controlled and is currently acquired.
When was 12Build founded?
12Build was founded in 2007. It employs 51 to 100 people.
Where is 12Build based?
12Build is headquartered in Nijverdal, Netherlands, in the Europe region.
How does 12Build make money?
Two revenue lines are on record. SaaS Subscription - Subcontractor Plans are the primary driver. The others are saaS Subscription - General Contractor.
Who are 12Build's main competitors?
Broad incumbents on record are Autodesk Construction Cloud, RIB Software (Schneider Electric) and Procore Technologies. Direct peers are ConstructConnect, SmartBid (ConstructConnect), iSqFt (ConstructConnect), E1 (formerly EstimateOne), BuildingConnected (Autodesk), PlanHub and TradeTapp (Autodesk).
Does 12Build have an API?
No public API is recorded for 12Build.
What industry is 12Build in?
12Build's product category is Construction Tendering Software. Its primary akta.pro industry code is EDAEAIAO, Procurement Platforms, Catalogs & Contract Purchasing (Co-ops, GPOs, eProcurement). Its NAICS code is 5614 and its SIC code is 7372.