Annual losses to communication and documentation errors, as cited by Callobra.
THE AI PLATFORM FOR CONSTRUCTION
Build together.
Move as one.
Automated contract and resource collaboration AI management
Your people, resources and offers.
Finally working on the same project.
AI Platform · Collaboration · Resource management · Offer management · Contract management
✓
One change. Everyone aligned.From 30 manual actions to one click.
THE CALLOBRA WORKSPACE
One platform.
Zero app fatigue.
Built for the people who build.
THE COST OF DISCONNECTION
Small gaps.
Industry-sized consequences.
Per person, per day lost to administration, as cited by Callobra.
Disputed value across 2,200 projects in 114 countries, cited from HKA CRUX 2025.
LESS FRICTION. MORE FORWARD.
30 → 1
Manual actions to one confirmation
5–12
Disconnected systems to bring together
90 days
To build deeper project intelligence
5
Application languages: EN, DE, ES, PT, HU
One AI platform for your construction project.
Great engineers.
Now, the right system.
Construction doesn't happen in one inbox. It happens between people. Callobra connects the conversations, commitments and resources that keep a project moving.
YOUR ENTIRE PROJECT, IN SYNC
One workspace.
Every moving part.
From the first conversation to the next decision.
A shared view of what matters.
01 / PROJECT COLLABORATION
A clear view.
A connected team.
Bring projects, people and decisions into one shared workspace. Keep every stakeholder close to the information that moves work forward.
- Project portfolio at a glance
- Tasks, documents and conversations
- Shared visibility across the team
02 / RESOURCE MANAGEMENT
The right resources.
Ready for what’s next.
Coordinate your people and equipment with a clear view of availability. See capacity, identify conflicts and plan the next stage with confidence.
- Worker and equipment availability
- Capacity and allocation planning
- Conflicts and procurement visibility
03 / OFFER MANAGEMENT
Every offer.
A better-informed decision.
Keep supplier bids, line items and project context together. Understand the breakdown before your team makes the next commitment.
- Supplier bids organised by project
- Material and labour cost breakdowns
- AI-assisted offer comparison
CONTRACT MANAGER
Prepared for your project.
Ready for your lawyer.
Callobra’s Contract Manager prepares contract drafts for your lawyer to review. Bring the preparation into your project workflow, then hand the draft to your legal professional for review and finalisation.
Explore Contract Manager ↗- 01
Prepare the draft
Use Contract Manager to prepare the contract for your project.
- 02
Send it for legal review
Your lawyer reviews the draft and makes the necessary adjustments.
- 03
Finalise with confidence
Contract preparation supports the process; legal review and final approval remain with your lawyer and the parties.
INTELLIGENCE THAT CONNECTS THE DOTS
One email.
A whole project
in motion.
You stay in control.
Callobra connects what comes next.
The update arrives.
A supplier emails: the windows will arrive two weeks late. It starts in the communication channel your team already uses.
EMAIL → PROJECT CONTEXT
The impact becomes clear.
Callobra's cascade-aware approach connects the change to dependent work packages, schedules and the stakeholders who need to know.
ONE CHANGE → UP TO 30 STAKEHOLDERS
You confirm. Work moves.
Human judgment stays at the centre. The platform is designed to route approved updates across connected systems and keep a structured record.
ONE CONFIRMATION → A SHARED SOURCE OF TRUTH
A SHARED PLATFORM. A PLAN FOR YOUR ROLE.
Built around
your part of the project.
Published Callobra pricing.
Talk with the team about access and availability.
Homeowner
$90/ month
One flat package. 2 seats included.
Let's talk ↗- AI email organiser
- Project document vault
- Contractor portal
- You and your partner, connected
$1,080 / year · Extra architect seat at additional cost
Subcontractor
$199/ seat / month
For companies with 5–25 staff.
Connect your team ↗- Multi-project overview
- Invoice tracking
- Single entry across connected systems
- Structured project history
~$19,100 / year · 8 seats on average
General contractor
$499/ seat / month
For mid-market operations teams.
Talk to the team ↗- Portfolio finance dashboard
- Full cascade intelligence
- ERP integrations
- Estimators, PMs and controllers
~$180K / year · 30 seats on average
BUILT FROM EXPERIENCE
For the people
who actually build.
Founded by Dr. Gabor Toldy. Architecture, law, economics, data science and systems engineering — brought together by real construction experience.
Meet the founder ↗20+years in construction
100+delivered projects
30+countries
A FEW THINGS, CLEARED UP
Good questions.
Clear answers.
What is Callobra?+
Callobra is an AI platform for construction collaboration, resource management, offer management and contract management. Contract Manager prepares drafts for your lawyer to review; AI suggestions remain subject to human confirmation.
Does Callobra replace human decisions?+
No. The published architecture keeps people in control: AI suggests, and the user confirms. Those confirmed interactions build a structured project knowledge base.
Can I see the application?+
Yes. Open the live MVP or book a 30-minute meeting with the Callobra team to explore it.
What is available now, and what is planned?+
The MVP is live. Callobra's published roadmap starts with Cascade Email Intelligence, followed by a materials marketplace in year 2 and embedded micro-banking in year 3+. Ask the team about current production features and integration availability.
Where can I find the financial and market figures?+
The investor overview preserves the published pricing, market sizes, industry evidence, funding ask and milestone projections. Targets describe the plan, not achieved revenue.