48 power units and 55 drivers on the DOT record, refrigerated distribution out of Fort Worth
FMCSA Company Snapshot + company site
Use cases
Find fleet operators and fleet managers by fleet size
The fleet is the only thing you care about, and no contact database has a field for it. Search by fleet size, depot, licence or safety record, and Causo reads FMCSA Company Snapshots, MCS-150 filings, Traffic Commissioner and DVSA vehicle operator licensing records, Dutch and German haulage authorisations and depot imagery operator by operator, then shows you the evidence behind every match.
Run your first search580,000 active US motor carriers registered with FMCSA that own or lease at least one tractor
How to find fleet operators by fleet size, depot or region
3 results for this search. Pick another above to see what it returns.
Family-owned beer and soft drink wholesaler, 62 trucks working Austin and San Antonio routes
MCS-150 filing + state business registry
31 tractors and 44 trailers from a single Amarillo depot, satisfactory safety rating
FMCSA Company Snapshot + depot imagery
Illustrative example. The source types are the ones Causo genuinely reads for this market.
Where the data on fleet operators comes from
- FMCSA SAFER Company Snapshot and MCS-150 filingsUSDOT number, power units, drivers, cargo carried, safety rating and the date of the last biennial update
- Traffic Commissioner and DVSA vehicle operator licensing recordsVehicles and trailers authorised, operating centres, transport managers and licence variations
- FMCSA Safety Measurement System and the DVSA earned recognition listRoadside inspection and out of service history in the US, and the published list of UK operators audited to DVSA standards
- NIWO, BALM and Community licence recordsDutch and German haulage authorisations, and the certified vehicle copies issued against each licence
- Companies House, state business registries, HandelsregisterOperating entity, directors, group structure and filed accounts
- Indeed, Greenhouse, LeverFleet manager, transport manager, technician and driver vacancies as a timing signal
- Google Maps, aerial and satellite imageryDepot yards, parked vehicle counts, workshop bays and charger installations
- Dun & BradstreetFirmographics and corporate linkage where available
- Plus many moreNo fixed provider list. If the answer lives somewhere else, the agents read that instead.
Ask anything about a fleet operator
Every result is a starting point, not an endpoint. Ask a follow-up about any operator on your list in plain English and the agents go back out and read for it, then answer with the sources they used.
How many vehicles do they actually run?
Answer63 power units and 71 drivers on the current DOT record, and the last biennial update was filed in March.
SourcesFMCSA Company Snapshot + the operator’s own site
Is that one depot or several?
AnswerThree operating centres on the licence, with the vehicle authorisation split 24, 18 and 9 across them.
SourcesVehicle operator licensing records + Companies House
Has anything changed in the last six months?
AnswerThe licence was varied upward by 12 vehicles in April, and a transport manager vacancy went live in June.
SourcesOperator licence variation + job boards
Why fleet operators are missing from B2B databases
580,000active US motor carriers registered with FMCSA that own or lease at least one tractorAmerican Trucking Associations, June 2025
376,044goods vehicles authorised across 66,222 operator licences in Great BritainTraffic Commissioners for Great Britain, 2024-25
Contact databases are assembled from what companies publish about themselves: professional profiles, funding rounds, tech stacks, hiring pages. A fleet is invisible to that method twice over. The first problem is the long tail. A regional distributor with 60 vans, a plumbing group with 40 trucks or a groundworks contractor with a yard full of tippers is a real business with a real budget, and 91.5% of active US motor carriers operate 10 or fewer trucks, so most of this market is small privately held firms with almost no profile to scrape. The second problem is worse, because it applies even to the companies a database does list. The defining attribute here, the fleet, is not a field anywhere. No contact database records how many vehicles a company runs, how many drivers it employs, how many depots those vehicles park in, what its safety rating is or when any of that last changed. All of it is published, just not where a database looks. In the United States every carrier with a USDOT number has a public Company Snapshot listing its power units, its drivers, the cargo it carries and its safety rating, and the carrier refreshes that record itself through an MCS-150 filing. In Great Britain the goods vehicle operator licence names the number of vehicles authorised, the operating centres and the transport manager, and a variation becomes public the moment it is granted. In the Netherlands and Germany a Community licence is issued with one certified copy per vehicle, so the count sits in the paperwork. A published fleet size per company exists. It just does not live in the tool most sellers open first. This is also the line between three markets that are easy to blur. A freight forwarder arranges transport and owns almost nothing, so it is defined by its licences and its customs entries. A third-party logistics warehouse operator is defined by the building it fills. A fleet operator is defined by the asset itself: the vehicles, the depots, the drivers who hold the licences and the safety record those vehicles earn at the roadside. If you sell telematics, dashcams, fuel cards, tyres, maintenance, leasing, charging or insurance, the third group is your market, and the vehicle count is the thing you need to filter on.
Figures as of August 2026.
Apollo vs ZoomInfo vs Causo for fleet management leads
| Apollo / ZoomInfo | Buying a list | Causo | |
|---|---|---|---|
| Filtering on "fleet of 25 to 100 vehicles" | No such field | No such field | Read from power units and licence authorisations |
| Companies whose fleet is not their industry code | Filed under food, plumbing or construction | Missed entirely | Found by what they run, not how they are classified |
| A safety rating or licence variation that changed this year | Whenever the record was last refreshed | Date the list was compiled | Read at the moment you search |
| Reaching the fleet or transport manager | Usually a head-office generic address | Often bounced | Named role, verified address |
Frequently asked questions.
Start from the licensing records rather than a contact database. In the United States every carrier with a USDOT number has a public FMCSA Company Snapshot listing its power units, drivers, cargo and safety rating, updated by the carrier itself through an MCS-150 filing. In Great Britain the goods vehicle operator licence records how many vehicles an operator is authorised for, where its operating centres are and who its transport manager is. In the Netherlands and Germany a Community licence is issued with one certified copy per vehicle. Causo reads those alongside Companies House, state business registries and depot imagery, so an operator with no marketing presence is as findable as one with a website.
Two reasons. Those databases are assembled largely from professional profiles and web signals, and 91.5% of active US motor carriers operate 10 or fewer trucks, so most of the market is small privately held firms with almost no profile to scrape. The bigger problem is that even the listed companies are useless to you, because fleet size is not a field. No contact database records how many vehicles a company runs, how many depots it operates from, what its safety rating is or when its licence last changed, and those are the only attributes that decide whether it is worth a call.
Yes, in plain English, and it is the reason this works. Fleet size is not a field in any contact database, so Causo works it out from primary sources instead: power unit and driver counts on the FMCSA Company Snapshot and MCS-150 filing in the United States, the number of vehicles authorised on a goods vehicle operator licence in Great Britain, the certified vehicle copies issued against a Community licence in the Netherlands and Germany, and parked vehicle counts on current depot imagery where no register applies.
A fleet operator owns or leases the vehicles and runs them for its own work, which is why the count of vehicles, the depots and the safety rating define it. A fleet management company runs someone else’s fleet as an outsourced service, often alongside leasing and financing, so it appears on the licence records of its clients as well as its own. A freight forwarder arranges transport and is asset-light, so its identity sits in licences and customs paperwork rather than in vehicles. A third-party logistics warehouse operator is defined by the building it fills. If you sell telematics, dashcams, fuel cards, tyres, maintenance, leasing, charging or insurance, the first two groups are your market and the vehicle count is what you filter on.
It is read at the moment you search rather than pulled from a stored snapshot, so an MCS-150 update filed last month, a licence varied upward in the spring or a safety rating that changed in February appears in this month’s results.
Yes. The sources differ by country, so Causo uses the local equivalents. In the United States that is the FMCSA SAFER Company Snapshot, MCS-150 filings and the Safety Measurement System. In Great Britain it is Traffic Commissioner and DVSA vehicle operator licensing records, the Notices and Proceedings publications and the DVSA earned recognition list. In the Netherlands it is NIWO haulage authorisations and the Kamer van Koophandel register, and in Germany it is BALM Community licences and the Handelsregister. Company registries, job boards and depot imagery work everywhere.
It depends on the size of the fleet. Below about 30 vehicles it is usually the owner or the operations manager, often the same person who signs off the tyres and the fuel cards. Between 30 and 250 there is normally a fleet manager or a transport manager who owns the budget, with a finance director approving anything on a multi-year contract. Above that you tend to find a head of fleet, a group compliance lead and a procurement function, and the depot managers are the people who have to live with the decision. Causo surfaces the role alongside the operator so you can tell which of those you are looking at.
One token per researched company, per decision maker found, per question asked and per outreach sequence sent. Plans start at $10 a month, and the first 10 tokens are free with no card required.