CARSODiligence Search
Diligence Search · do it yourself · the Carso Cortex: 4.5 million carriers, 18.5 million dated events

After Montgomery, the question is
"show me how you vetted this carrier."

Montgomery removed the federal shield: a broker can now be sued under state law when a carrier it hired causes harm. This is where the diligence starts: describe the carrier in plain words, narrow by the facts on record, and when the record shows a risk, order the signed Certified Diligence Report.

Live search is for subscribers. The box below is a preview with three worked examples; your own terms will work once you have a plan.

Results

This is a preview. Live search opens to subscribers; on this page you can run three example searches to see how results look, why each carrier matched, and how a risk is flagged.
Why this is different

Lookup tools find the name you already know. This finds the carrier you are describing.

Lookup and alert tools

  • Exact name or DOT number. Misspell it, or know only the DBA, and you get nothing.
  • One carrier at a time. You cannot ask for "every reefer carrier in Texas with a clean crash record."
  • Complaints submitted by other users. Unverified, disputed, and not evidence.
  • Alerts after the fact. You learn about the insurance cancellation after you booked.

Carrier Intelligence

  • Search by meaning. "swift transportation" finds Swift Transportation Inc, Swift Transport Inc, and the DBAs.
  • Twelve facets, each searchable. Name, DBA, officers, location, cargo, equipment, hazmat, safety history, authority history, insurance history, fleet size.
  • Hard filters on the record. State, fleet size, crashes, fatalities, violations, insurance, authority status, prior revocations.
  • 18.5 million events. Authority changes, insurance filings and cancellations, crashes, as dated records with a source.
  • No scores, no opinions. It shows what the record contains. When the record shows a risk, one click orders a signed Certified Diligence Report you can hand to counsel.
How to use it · fifteen seconds

Three moves.

1

Say what you mean

"reefer carrier for grocery loads." Results come back by meaning, not spelling.

2

Add a fact

Texas. 100 or more trucks. Zero fatal crashes. The list tightens to the record.

3

Act on the flag

A carrier shows "Operating authority was revoked in the past." One click orders the CDR: the signed record that answers show me how you vetted. Clean carriers are never flagged.

Questions
Do I need the exact spelling?

No. It matches on meaning. Partial or loose wording still lands.

Can I combine a description with exact filters?

Yes. Words for the kind of carrier, filters for the facts.

I typed "over 1000 trucks" and it ranked oddly.

Numbers are a filter, not a phrase. Put the threshold in the fleet-size filter.

What is the "run a CDR" prompt?

When a carrier's record shows one of these, the result is flagged with the reason in these exact words and offers the Certified Diligence Report: "Operating authority was revoked in the past." · "Operating authority has been revoked and reinstated more than once." · "Operating authority is not currently active." · "A liability-insurance cancellation is on record." · "No active liability insurance is on file." · "A fatal crash is on record." · "New carrier — under two years in operation." Clean carriers are not prompted.

Does it score carriers?

No. It finds carriers and shows the record. The decision stays with you.

What does "Montgomery" mean here?

In Montgomery, the Supreme Court held that a broker can be sued when a carrier it hired causes harm. The practical question after that ruling is whether you can show how you vetted the carrier. Search is where that starts; the Certified Diligence Report is the signed, dated document that shows it.

Where does the data come from?

FMCSA registration, authority, insurance, inspection, and crash records, refreshed weekly, plus public corporate records. Every fact shown carries its source. Nothing is inferred and presented as a record.

Can I try it before I subscribe?

This page previews three worked examples so you can see how results read. Search with your own terms opens with a plan. Bronze ($179/mo) opens unlimited search and full carrier profiles. Silver ($359/mo) adds the API and one Certified Diligence Report a month. Gold ($1,650/mo) adds volume and three reports a month. Enterprise is by quote.

Can my software or my agent call it?

Yes. The same search is available as a REST endpoint and an MCP server on Silver and above, so an agent can vet a carrier mid-conversation.

Diligence Search plans

Choose your lane.

Self-serve. Upgrade, downgrade, or cancel any time. Annual billing: two months free.

Bronze
$179 / month
  • Unlimited search by meaning, with every filter
  • Carrier profiles: event timeline and related carriers
  • Authority, insurance, and revocation history
  • For solo brokers and small desks
Start Bronze
Silver · most popular
$359 / month
  • Everything in Bronze
  • REST and MCP API: your agents vet carriers mid-conversation
  • Exports and higher limits
  • One Certified Diligence Report a month, included
Start Silver
Gold
$1,650 / month
  • Everything in Silver
  • High-volume API, bulk lookups, and monitoring
  • Priority support
  • Three Certified Diligence Reports a month, included
Start Gold

Enterprise, by quote: SLA, per-lookup agent metering, custom volume, TMS embedding. (415) 216-9897 or contact us. Need a certified investigation of one carrier, not a subscription? Carso Diligence, $325 per report.