Company

Built for one contractor, on purpose

BidCaliper was built for a Winnipeg mechanical contractor who was reading nine hundred public tenders to find the four that were open to him.

It is still being built for him. Everything here has to hold up in front of somebody who will notice if it is wrong.

How it started

With one estimator’s morning

Public tenders are open to everyone and hard to get through. A ten-person shop gets the same list as a national contractor. Finding the four jobs that are open to them falls on whoever has the least time.

Every alerting tool on the market solves this with keywords. We measured what that does: 44 past Manitoba contracts match the word “heating”, and most of them are deliveries of heating fuel on winter roads. That is what happens when software matches words instead of reading what the job is.

August 2026

First live version. Federal and Québec tenders, the requirement checks, the cost model.

August 2026

Tested on real Manitoba tender documents, not made-up ones. It read a third of the requirements correctly. We rebuilt it around what the test showed, and that took it to nearly all of them.

August 2026

Addendums: what changed, what it superseded, and what of yours is now out of date.

Now

Looking for the next few companies to build it with. That is the whole plan.

How it is built

Four things this will not do

These are rules built into the software.

Never an answer without a reason

Every finding shows its reason and the sentence it came from. Every number shows where it came from and what would change it.

Never make up a figure

When something is missing it says so. If it is unclear, it is “worth a look”, never “clear to bid”. A wrong “yes, bid it” costs you two days.

Never submit anything

There is no button or setting that submits for you. You sign and you send.

Never share your documents

What you upload stays inside your company. An automatic test plants a dummy document and fails if another company can ever reach it.

Where it is

Still early

No funding round, no head count, no customer logos. This is all of it. When there is more to report, it will come with a number beside it.

Aug 2026
live since
and running every six hours since
4
public sources read directly
federal, all of Québec, the City of Toronto and the Government of Yukon
2,094
open tenders checked
as at 20 October 2026
57,627
past awards read for buyer history
28,759 federal · 20,969 Québec · 6,578 Nova Scotia · 1,321 Toronto

There are no customer logos or testimonials on this site because we do not have any yet. When we do, they will have names on them.

Who

One person, in Winnipeg

BidCaliper is built and run by James Worthing, carrying on business as BidCaliper. His day job is safety and compliance: writing the programs and running the audits that contractors need for public work. That is why the record of what you decided, and why, gets so much attention here.

Tell us what it got wrong

If it turned away a job you could have bid, tell us. That is the most useful thing anyone can send us.

May we count this visit? We use Google Analytics on these public pages to see whether contractors are finding us. Nothing inside your account is ever measured. What we hold