Calqi
Calqi

From specification
to priced offer.
Without starting over.

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.

01

Create once

Specification and measurement are one project, not a Word file and an Excel file.

02

Tender clearly

Send the same lot, items and quantities to the contractors you choose.

03

Compare apples to apples

Offers come back onto the same items, ready to compare.

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

Old offers sorted into clean price tokens

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.

30,000+
price points in the network, and growing
30,000+
price points in the network, and growing
30,000+
price points in the network, and growing

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

A full room at the Calqi contractor launch in Zoersel

500+

contractor companies

© Mapbox © OpenStreetMap

1,000+

projects

Rijnkaai Tower

Residentie Zuidpark

Kiel School Campus

Architect

“We write the specification once, and the offers come back on the same items. Comparing three roofers now takes an afternoon instead of a week.”

Sofie Claes

Project architect

·

Studio Noord

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.”

Pieter Stuyf

Estimator

·

Stuyf 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

Same item

€71.20 / m²

Build together.
Price with context.

MADE IN BELGIUM · HOSTED IN THE EU

Calqi

From specification to priced offer.

Build Together

© 2026 Calqi BV · Hoge Weg 129, 2940 Stabroek · BE0783.944.892 · info@calqi.be

Made in Belgium 🇧🇪 · Hosted in the EU