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SigmaCPM

Construction project management where AI reads the tender and shows its work.

Type
Our product
Status
Early access
Platforms
Web, API, Chrome extension
Live at
sigmacpm.com
sigmacpm.comEarly access
SigmaCPM homepage showing a tender item traced from extraction to progress billing

The problem

Estimators re-key the same line items from tender PDFs into spreadsheets, bond forms, and quote requests. An AI that guesses a number in a bid is worse than no AI at all.

One project record for civil contractors, from tender to closeout: bids, contracts, RFIs, vendor quotes, and drawings. The AI pulls line items and bond terms out of tender PDFs and cites the page for every value.

What we built

  1. 01

    Tender intake that refuses to guess

    Every value the model extracts must come with a quote, and that quote must be found on the cited page. If it is not there, the value is dropped.

  2. 02

    A second, adversarial pass

    Bond terms are re-checked by a second model run. Disagreements land in a disputed state for a person to resolve.

  3. 03

    OCR for scanned tenders

    Scanned pages go through OCR with retry handling before extraction, so old tender packages work too.

  4. 04

    One platform, several products

    A multi-tenant backend with organizations, seats, and per-module entitlements, shared with a sibling password-sharing product and its Chrome extension.

Engineering notes

  • A Postgres-backed job queue with leases, orphan reclaim, and skip-locked selection. No extra broker to run.
  • Token and cost recorded on every LLM call.
  • Page-targeted retrieval of candidate pages before extraction, so the model reads the right pages instead of the whole package.
  • Marketing site on Cloudflare Workers with a D1-backed wait list and Turnstile.

Stack

By the numbers

Every value
Cited to a page
Status
Early access

Services in this project

For your industry

Building something like this?

We built SigmaCPM. We can build yours.

Thirty minutes on how the work happens today. You leave with a written plan: scope, timeline, and a number.

Start a conversation

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contact@acasalabs.com

More work