Contractors
Cornerstone Excavating Corp.
Heavy Civil · Toronto, ON · Toronto office · AM Marcus Webb
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Bids & consents YTD
2
1 bid · 1 consent
Successful tenders
0
marked Low Bid
% successful
0%
Low Bid of 3 decided
Open exposure
$46.9M
49% of $95.0M
Facility utilization — bid vs. final exposure
Single entity · live49%of $95.0M own facility
$46.9M drawnFinal-bond exposure
$29.2M
cost-to-complete + bonded since 2026-04-05
Bid exposure
$17.7M
open tenders as of today · est. price
Available
$48.1M
remaining capacity
Latest WOH as of 2026-04-05 · final bonds since 2026-04-05 · outstanding bids as of today · current utilization as of today.
Working authoritySingle job $46.0MAggregate $95.0Msurety since 2012
Derived live from the bond store — marking a bid Unsuccessful or Expired removes it from bid exposure in real time.
Exposure report
Issued bonds · penalty at risk
Total surety exposure — sum of issued bond penalties$950K
Bid bonds2 bonds
| Project | Bid date | Validity | Penalty (exposure) |
|---|---|---|---|
| Transit Agency — Civic Centre Build Metrolinx · 10% bid bond on $3.5M tender | 2025-02-14 | — | $350K |
| Province — Arena Retrofit Minister of National Revenue (Canada Revenue Agency) · 10% bid bond on $6.0M tender | 2025-06-03 | — | $600K |
| Bid bonds subtotal | $950K | ||
Final bonds — Performance & Payment0 bonds
| Project | Completion date | Penalty (exposure) |
|---|---|---|
| No issued final bonds. | ||
Penalty at risk: bid bonds at their bid % of the tender (e.g. 10% of a $5M job = $500K); final bonds at the full contract (Performance 50% + L&M 50% = 100%). Issued bonds only — lost, expired, draft, and pending bonds are excluded.
Account team
Surety company
Trisura Guarantee Insurance Company
Underwriter
N. Fournier
platform Account Executive
Rachel Kwan
platform Account Manager
Marcus Webb