For teams that answer tenders
From tender to priced bid in minutes, not days.
For manufacturers and trade contractors that receive GAEB, PDF or Excel tenders from general contractors, architects and public clients. DatumOS reads every position, matches it to your catalog, prices it by your rules, and hands back a branded quote plus a GAEB X84 you can submit. Your estimators review only what is uncertain.
Estimating today
The tender is due Friday. The retyping starts Monday.
Every bid begins with skilled people copying a bill of quantities into Excel or the ERP before a single price can be set. That is where the days go.
Three hundred positions, typed by hand
A GAEB X83 or a 90-page PDF lands. Someone transcribes quantities, units and long texts line by line — and the first pricing question is still hours away.
“As per position 2.510, except…”
Inherited specifications, alternative and contingency positions, a competitor’s product named as the reference — the details that decide the margin are buried in prose.
Three tenders, one estimator
When several requests arrive at once, the last one goes out unchecked or not at all. Deadlines, not judgment, decide which bids your company wins.
How it works
Upload the tender. Review what is uncertain. Send.
Upload
GAEB X83 is parsed exactly by our open-source engine. PDF, Excel and Word go through an AI reading pipeline. One drop zone, any format.
Extract
Every position with quantities, units, dimensions, materials and performance classes. References like “as position 2.510” are resolved automatically.
Match and price
Each position is matched to your product catalog with a confidence score and priced by your rules: base price, size adjustments, upgrades, totals.
Review and send
Only uncertain lines ask for your judgment, side by side with the original page. Then you get the internal quote, the client PDF and the GAEB X84.
What comes back
Everything you need to submit, nothing to retype.
GAEB X84 bid
For GAEB tenders, the priced bid is written back into the original file structure, ready for the client’s AVA software.
Branded client quote
A clean PDF in your layout with your terms, generated from the same reviewed positions.
Internal version with flags
Every automated decision carries a confidence score, so your team sees exactly which lines were reviewed and which flowed through.
Who it is for
Built with the teams that answer tenders.
Manufacturers that quote from tenders
Developed with window and door makers, so dimensions, glazing packages, acoustic and security classes and U-values are modelled in depth. Your own catalog and pricing rules make it fit your product.
Trade contractors and subcontractors
Answering packages from general contractors under deadline pressure: alternative positions, lot structures and framework contracts are handled as GAEB defines them.
Software teams that need GAEB
If you build your own tools, the engine under DatumOS is open source: pyGAEB parses, validates, converts and writes every GAEB DA XML version.
Explore pyGAEB →Why teams trust it
Exact where it can be. Reviewed where it must be.
GAEB parsed, not guessed
Structured tenders are read deterministically by pyGAEB, whose DA XML 3.3 output validates against the official GAEB schemas. AI is used only for PDFs, prose and catalog matching.
A human gate on every uncertain call
Nothing is priced silently. Low-confidence matches surface for review; your corrections stay traceable in the quote.
Your tenders stay yours
EU-hosted infrastructure, no training on your data, data processing agreement on request, deletion on demand.
pyGAEB
The open-source GAEB engine we build DatumOS on: every DA XML version and exchange phase, validated against the official schemas, MIT-licensed. Used by developers across the German construction software scene.
$ pip install pyGAEB Pilot
Run it on your next three tenders.
We are onboarding a small group of pilot companies. You bring real tenders, we set up your catalog and rules with you, and you see your own bids come back.
- Free for four to six weeks, on your real tenders
- Hands-on setup by the people who build the product
- NDA as standard, hosted in the EU
- Founder rate fixed for twelve months if you continue
Prefer email? hello@datumos.build