Hazmat carriers in Maryland
with insurance on file.

1,177 active Maryland carriers hauling this class hold a live BI/PD filing with FMCSA. Motor carriers registered to haul hazardous materials, from the daily-refreshed federal index. The largest are below. Each profile shows authority, current insurer, coverage and safety record.

Largest 50 of 1,177 · by power units
CarrierUSDOTInsurer on filePower units
Cowan Systems LLC · Baltimore548880General Insurance Company Of America1,882Thompsongas LLC · Frederick2812287Ace American Insurance Company1,210D M Bowman INC · Williamsport135530National Interstate Insurance Company265Lightning Transportation INC · Hagerstown326966Obsidian Insurance Company256Cowan Intermodal Group LLC · Baltimore215194General Insurance Company Of America239Tri-Gas & Oil Company INC · Federalsburg7750National Union Fire Insurance Company Of Pittsburgh, Pa.162National Delivery Systems INC · Columbia966390Arch Insurance Company147Cj Miller LLC · Hampstead335900Zurich American Insurance Company131Baltimore Tank Lines LLC · Glen Burnie84666Crestbrook Insurance Company130Dd&S Express INC · Annapolis361802Old Republic Insurance Company105Quest Transport LLC · Baltimore1425906Federated Mutual Insurance CO.104Pillar Innovations LLC · Grantsville1627465National Union Fire Ins. CO. Of Pitsbgh. Pa104New Direction Utilities · Hagerstown866970Continental Casualty CO.101Solutions Transport LLC · Baltimore334544Key Risk Insurance Company100Carroll Independent Fuel LLC · Sparks Glencoe336632Zurich American Insurance Company98Dixie Land Energy LLC · Rising Sun1077035Federated Mutual Insurance CO.96David A Bramble INC · Chestertown127533Zurich American Insurance Company85Fleet Transitinc · Baltimore154471National Interstate Insurance Company85Beitzel Corporation · Grantsville337380National Union Fire Ins. CO. Of Pitsbgh. Pa82A C And T CO INC · Hagerstown180459Zurich American Insurance Company81Cowan Transport Services LLC · Baltimore917652General Insurance Company Of America77L B & B Associates INC · Columbia1082694Hartford Fire Insurance Company76Mts Transport LLC · Baltimore2029816Zurich American Insurance Company75Moyer & Sons INC · Clarksburg222787Vanliner Insurance Company67Town And Country Movers INC · Gaithersburg418499Vanliner Insurance Company64Eastern Excavating And Grading Corporation · Odenton899457Selective Way Insurance Company59Creekstone Landscape & Excavating LLC · Big Pool835866Fcci Insurance Company56Cato INC · Salisbury33644Zurich American Insurance Company55Petroleum Recovery And Remediation Management INC · Baltimore776517Ace Property And Casualty Insurance Company51Jrp Waste Oil Service INC · Rising Sun461215Xl Specialty Insurance Company48Consolidated Commercial Services LLC · Silver Spring1824981Travelers Indemnity Company Of America46Ecology Services INC · Columbia779901Great Divide Insurance Company42Groff Tractor Mid Atlantic LLC · Essex3051720The Phoenix Insurance CO41Ted'S Towing Service INC · Baltimore65125Manufacturers Alliance Insurance Company40Tilley Distribution INC · Baltimore65139Hudson Excess Insurance Company39Bay Crane Mid-Atlantic LLC · Dundalk4285026Old Republic Insurance Company39Right Way Auto Transport INC · Elkton355181Arch Insurance Company37Huntzberry Brothers INC · Smithsburg395813Selective Insurance Company Of The Southeast36Tri-Trucking LLC · Federalsburg2129756National Union Fire Insurance Company Of Pittsburgh, Pa.35Geva Transportation LLC · Clinton2845842Transguard Insurance Company Of America INC.35B Von Paris & Sons INC · Savage88613Transguard Insurance Company Of America INC.31Morgan E Russell INC · Huntingtown541579Continental Casualty CO.31Wastler & Son INC · Myersville2081835The Cincinnati Insurance CO.30Affordable Roadside Service · Pasadena2424022Incline Americas Insurance Company29Rockdale Towing LLC · Reisterstown535652Amerisure Mutual Insurance Company28Aggregate Express LLC · Temple Hills1199234The Travelers Indemnity CO. Of Connecticut28United Transport Service INC · Jessup397438Erie Insurance Exchange27Baltimore Towing Company Incorporated · Dundalk612610Amerisure Mutual Insurance Company27Morton'S Towing & Recovery INC · Clarksburg1064316The Peninsula Insurance Company26Sullivan & Sons INC · Baltimore402285Erie Insurance Exchange25
The full list
All 1,177 insured hazmat carriers in Maryland: names, USDOT and MC numbers, insurer on file, fleet size and profile links, as a CSV.
New entrants, monthly
Get every carrier that enters this class in Maryland emailed at the start of each month: new authorities hauling hazmat freight, before they’ve picked an agent.
One email a month, confirmed by double opt-in. One-click unsubscribe, no newsletter, no spam.
Write Maryland hazmat

Every one of these carriers
has a renewal date.

Market Tracker filters Maryland’s hazmat carriers by renewal X-date window, fleet size and risk, with verified contacts and alerts when a carrier’s filing changes. From $69/user/month.

Start 7-day free trial →