From specification
to priced offer.
Together, in one flow.
Calqi keeps tender information connected for architects and turns pricing history into a head start for contractors.
The information already exists.
It just lives everywhere.
Specifications, measurement sheets, PDFs, emails, ERP exports, old offers and supplier prices. The work is finding, connecting and reusing what is already there.
One tender · two sides · one connected workflow
Architects structure it.
Contractors price it.
For architects
Keep the tender
connected.
Specifications, quantities, price requests and incoming offers stay part of the same project.
For contractors
Your next offer should not
start from zero.
Turn previous offers and price files into your own price library, then use it as a head start on the next bill of quantities.
Explore Calqi for contractors
Useful from day one.
Smarter with every offer after.
Your own price history gives you a starting point. Aggregated observations add context around it. Your company data stays private.
Built inside the real
tender workflow.
Architects are already building tenders in Calqi. Contractors are already bringing their pricing history into the same network.

200
architects
07.21.10 · LSQ
Flat roof, bitumen on PIR 140 mm
1,768.00 m²

500+
contractor companies

© Mapbox © OpenStreetMap
1,500+
projects
Architect
VD Architecture saves 30% of its time on tenders with Calqi.

Lara Borremans
Architect
·
VD Architecture
Contractor
“Most of our prices were already in old offers. Now they show up in the next bill of quantities, and we still decide what goes out.”

Ruben Struyf
Estimator
·
Struyf Building
See Calqi in your work.
Choose your role and see how Calqi fits the way you tender or price construction projects.
For architects
Keep every
tender connected.
Create specifications and quantities together, request prices and compare incoming offers on the same structure.
07.21.10 · LSQ · m²
Flat roof, bitumen on PIR 140 mm
Quantity
1,768.00 m²
Offers
DM
PD
DV
For contractors
Start the next offer with
what you already know.
Turn your pricing history into a reusable price library and use it as a head start on the next bill of quantities.
Your price memory · 07.21.10
2026
Rijnkaai Tower
€71.20
2025
Residentie Zuidpark
€69.40
2024
School extension Lier
€72.10
Your range
€68.50–74.00


