Insurance Endorsement Verification for Subcontractor and Vendor COIs
A ticked box on a certificate is a claim. The endorsement form is the cover. TrackMyVendor reads the form.
Your subcontract asks for additional insured, a waiver of subrogation and primary and non-contributory wording. The certificate says yes to all three — because the agent ticked the boxes. Endorsement verification reads the endorsement forms themselves, identifies each one by its ISO form number, and checks it against what you require, the moment your sub uploads it.
Starts a 30-day Pro trial. Endorsement verification is on Pro.

How endorsement verification works
Endorsement review usually means opening a twenty-page PDF behind every certificate. Here it is three steps, and only the first one involves anyone.
Ask for the endorsements, not just the certificate
Require the endorsements on the sub's checklist and their upload link asks for them by name. The endorsement pages can come behind the certificate in one PDF or as separate files — the reader works out which it received. No account, no portal: most subs finish from a phone in under two minutes.
Every form is identified by its ISO number
Carriers title endorsements however they like; form numbers are a fixed vocabulary. Each endorsement is classified by its form number first — so a CG 20 01 is read as primary and non-contributory even when the cover sheet calls it "additional insured" — along with its edition, the policy it amends and its dates.
Checked against what you require
Each required endorsement reads as met, expiring, expired or missing on the sub's checklist. A ticked ADDL INSD box on the certificate never satisfies it on its own — only the form does. Set requirements per job.
The four endorsements it reads
Ordered the way a hiring party reads them: who is covered, who can't be sued, who pays first, and who gets told when it ends.
Additional Insured
AIForms: CG 20 10, CG 20 37, CG 20 26 and the rest of the CG 20 family; CA 20 48 for auto
Blanket or scheduled; ongoing operations, completed operations, or both; the names printed on a scheduled form.
Waiver of Subrogation
WOSForms: CG 24 04 for general liability, CA 04 44 for auto, WC 00 03 13 for workers' comp
Which coverage it amends — so a waiver on general liability isn't mistaken for one on workers' comp.
Primary & Non-Contributory
PNCForms: CG 20 01 — the one CG 20 form that is not an additional insured endorsement
Read by form number, which wins when a carrier's cover sheet calls it "Additional Insured".
Notice of Cancellation
NOCForms: CG 02 24, IL 02 70, IL 09 85 and carrier equivalents
How many days of notice the insurer owes before the policy is cancelled.
What you see on the sub's record
Every endorsement on file, next to the certificate it came with — and the requirement it answers, or the one still open.
Endorsements
Apex Drywall LLC · general liability
Required documents
Apex Drywall LLC
- Certificate of insuranceOn file
- Additional insured endorsementOn file
- Primary & non-contributoryOn file
-
Waiver of subrogationExpired
Required by Riverside Medical Office Building
The sub's upload link asks for the renewed waiver, and nothing they have already sent.
The certificate says yes. The endorsement says whether it's true.
An ACORD 25 is a summary the agent writes. Its ADDL INSD and SUBR WVD boxes are a statement that an endorsement exists — useful, and not the same thing as the endorsement.
From the certificate
- –A ticked box per coverage line
- –Free text in Description of Operations
- –No form number, no edition, no names
- –Recorded as a claim, never as cover
From the endorsement form
- ✓The ISO form number and edition
- ✓Blanket or scheduled, and the names on a scheduled form
- ✓Ongoing operations, completed operations, or both
- ✓Its own dates, and the coverage it amends
The difference matters most at the moment of a claim. See certificate holder vs. additional insured for why being on the certificate is not being on the policy.
What it checks, and what stays with you
Many endorsement review services put a person on every PDF and charge for it. This is automatic, instant and included in Pro — which is why it's worth being exact about where it stops.
Checked for you
- ✓Which endorsements are on file, by form number
- ✓Whether each one is current, expiring or expired
- ✓Whether each required endorsement is met or missing
- ✓Blanket vs. scheduled, ongoing vs. completed operations
Yours to decide
- –Whether a scheduled form names your exact legal entity — we show the names
- –Whether an edition or wording satisfies your prime contract
- –Anything that needs a legal opinion — that's your broker or counsel
Simple, transparent pricing
Endorsement verification is on Pro. Free and Starter read the certificate itself; on Starter the checklist can still require an endorsement, answered by the endorsement document uploaded against it.
Free
Free forever. No credit card. No expiration date on the free tier.
- ✓AI COI parsing and AI W-9 parsing — carrier, limits, policy dates, name, TIN and tax classification read for you
- ✓Any other document, filed by category — contracts, financials, licensing, insurance
- ✓License tracking in all 50 states, plus automated daily state-database verification
- ✓Magic link uploads — your subs send documents without an account
- ✓Expiration tracking across every license, certificate and W-9
- ✓Weekly compliance digest by email
- ✓Timestamped audit trail
Starter
Solo GC or property manager tired of chasing renewals manually — less than the cost of discovering one expired license on inspection day.
- ✓Everything in Free
- ✓Unlimited subcontractors — no 25-record ceiling
- ✓Automated email alerts at 90/60/30/7 days — sent to your team and the contractor
- ✓Calendar feed — subscribe every deadline into Google Calendar, Outlook or Apple Calendar
- ✓Bulk import — add your roster from CSV or a certificate archive
- ✓Invite a second user to your account
Pro
Multiple job sites or properties, with a foreman or office manager who also needs access.
- ✓Everything in Starter
- ✓AI-parsed endorsements — additional insured, waiver of subrogation, primary & non-contributory, read off the endorsement pages
- ✓Projects — group subs by job or property, with per-project coverage requirements
- ✓Unlimited users & team roles
- ✓Integrations — QuickBooks Online, Zapier, Make, Slack and Teams
- ✓Compliance reports (PDF & Excel)
No contracts. Cancel anytime. See the full plan comparison →
The endorsement gaps that show up most
None of these is visible on the certificate. All of them are visible on the forms.
CG 20 10 without CG 20 37
Ongoing operations covered, completed operations not — so a claim that arrives after the job is finished, when many of these claims arrive, falls outside it. CG 20 10 vs CG 20 37.
A scheduled form that doesn't name you
A scheduled additional insured endorsement covers only the parties printed on it. If your entity — or the owner your prime contract requires — isn't on the schedule, the endorsement exists and you still aren't on it.
A waiver on one policy, not the other
A CG 24 04 waives subrogation on general liability. It does nothing for workers' comp, which needs its own WC 00 03 13 — and that is often the waiver a subcontract cares about most.
Last year's endorsement on this year's policy
The policy renewed; the endorsement on file belongs to the old policy number. Endorsements carry their own dates, and an expired one reads as expired even when the certificate behind it is current.
Frequently asked questions
What is endorsement verification?
Which plan includes endorsement verification?
Does it check that my company is named on the endorsement?
Is a ticked ADDL INSD box on the certificate enough?
Do you offer human review of endorsements?
What if the subcontractor sends the endorsements separately from the certificate?
What about carrier forms that don't use ISO form numbers?
What happens when an endorsement expires?
Know you're on the policy, not just on the certificate
Endorsement forms read by number, checked against what you require, and dated — the moment your sub uploads them.
Start free — no credit cardStarts a 30-day Pro trial
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