Top 100 Louisville Trucking Fleets by Power Units (2026)
Every fleet below lists a Louisville, KY headquarters with FMCSA, ranked by the power units on its latest MCS-150. Open any row for that carrier’s full public workup — risk flags, score breakdown, insurance filings, and record timeline.
Frequently asked questions
About trucking companies in Louisville, KY
Which trucking company in Louisville has the biggest fleet?
MERCER TRANSPORTATION COMPANY INC leads the Louisville, KY ranking with 1605 power units on its most recent MCS-150 filing. Its complete public workup — risk flags, score breakdown, insurance filing history, and record timeline — lives at https://mclookup.com/carrier/154712.
How many motor carriers operate out of Louisville?
992 active carriers list a Louisville, KY headquarters address in the FMCSA census (after filtering for realistic fleet data). The top 100 by fleet size are ranked on this page; the rest are searchable by USDOT or MC number.
What does the ranking on this page measure?
Position reflects self-reported power units — tractors, straight trucks, and buses, excluding trailers — from each carrier's MCS-150. A plausibility filter (driver-to-truck ratio between 0.3 and 5.0) removes registrations with obviously bad data before ranking.
What shows up on each carrier's linked profile?
Every row links to that carrier's public record page: red and caution risk flags with point deductions, a category-by-category score breakdown, the month-over-month FMCSA record timeline, insurance filing history, and any shared-contact links to other carriers — all from federal data, refreshed on a rolling ~48-hour cycle.
Do I need an account to vet a Louisville carrier?
No — the public record pages are open. A free account adds the deeper workup: BASIC percentile detail, crash-by-crash records, live insurance verification against federal minimums, and watchlist monitoring with change alerts.
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