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Carrier Services: 18 Carriers Across FTL, LTL, Intermodal, Specialized, and Asset-Light
Domestic carrier services cover five operating categories based on freight type, equipment, and business model. The 18 carriers on SupplyWolf range from the largest LTL networks in North America to specialized flatbed, refrigerated, and tank carriers, plus an asset-light agent-based model and a carrier back-office technology service.
| Category | Carriers | Freight Type |
|---|---|---|
| Full Truckload (FTL) | Werner, Heartland Express, Maverick, Marten (Refrigerated), KAG (Tank/Bulk), Trimac, Knight-Swift | Dry van, flatbed, reefer, tank/bulk, specialized |
| Less-Than-Truckload (LTL) | Old Dominion, Saia, FedEx Freight, XPO, Estes, TForce, R+L Carriers | Palletized, packaged freight under full truckload |
| Intermodal / Diversified | J.B. Hunt, Schneider National, Knight-Swift | Truck + rail intermodal, diversified truckload |
| Asset-Light | Landstar System | All modes through agent/owner-operator network |
Full Truckload (FTL) Carriers
Best for: Shippers wanting dedicated contract carriage reliability with a top-tier national truckload carrier
Werner Enterprises is a top-10 US truckload carrier operating a large dry van fleet with dedicated, one-way truckload, and intermodal services. Werner's dedicated contract carriage program — where Werner drivers and trucks run exclusively for a single shipper — serves retailers, manufacturers, and distributors who want the reliability of a private fleet without the capital and management burden of fleet ownership. Werner's fleet size and national reach provide backup capacity for dedicated clients when volumes surge.
- Top-10 US truckload carrier — national dry van network with dedicated and one-way programs
- Dedicated contract carriage — Werner drivers exclusively for your operation
- Intermodal capability alongside truckload for mode optimization on qualifying lanes
- Technology platform for load tracking and carrier performance visibility
- Driver hiring and retention programs supporting consistent service for dedicated clients
Best for: Shippers with Midwest and Southeast FTL lanes seeking consistent service from a driver-retention-focused carrier
Heartland Express operates a regional and national dry van truckload network with a focus on service quality and driver retention — their driver-focused culture reduces turnover and supports consistent service delivery. Heartland's acquisition of Contract Transport (CTI) expanded their footprint and fleet. Heartland serves shippers needing reliable dry van FTL with shorter average length of haul than long-haul carriers, particularly in the Midwest and Southeast corridors.
- Dry van truckload with regional and national coverage across primary US corridors
- Driver retention focus — lower turnover than industry average for service consistency
- Regional strength in Midwest and Southeast FTL lanes
- One-way and dedicated truckload programs
- Technology for real-time load tracking and proof of delivery
Best for: Shippers with flatbed freight — steel, machinery, building materials, oversize loads requiring open-deck equipment
Maverick Transportation provides flatbed and specialized freight services — handling oversize loads, building materials, steel and metal, machinery, and any cargo that requires open-deck trailers with specialized securement. Maverick's flatbed drivers are trained in tarping, chaining, and load securement for irregular freight that dry van and reefer drivers don't handle. Maverick also offers temperature-controlled services for freight requiring both flatbed configuration and climate control.
- Flatbed and specialized freight: oversize, steel, machinery, building materials
- Trained flatbed drivers for securement, tarping, and load compliance
- Temperature-controlled flatbed capability for climate-sensitive specialized freight
- Oversize and overweight permit management for loads requiring special routing
- National flatbed coverage with specialized equipment configurations
Best for: Food manufacturers, grocery distributors, and pharmaceutical shippers needing FSMA-compliant refrigerated FTL
Marten Transport (operating as Refrigerated Trucking Services) specializes in temperature-controlled truckload — serving food manufacturers, grocery distributors, pharmaceutical shippers, and any freight requiring consistent temperature management during transit. Marten's reefer fleet and driver training support temperature-sensitive freight from pickup to delivery with temperature monitoring and documentation. Food safety compliance (FSMA requirements, temperature logs, pre-cooling verification) is integrated into Marten's operational protocols.
- Temperature-controlled FTL specialization — food, pharmaceutical, and perishable freight
- FSMA food safety compliance with temperature logs and pre-cooling documentation
- Refrigerated fleet with temperature monitoring throughout transit
- Driver training for temperature-sensitive freight handling and emergency response
- National coverage for refrigerated truckload across primary food distribution lanes
Best for: Manufacturers and distributors needing bulk liquid or gas transport across food-grade, chemical, and petroleum commodity categories
KAG (Kenan Advantage Group, operating as Tank Truck & Bulk Logistics) is North America's largest tank truck carrier — providing liquid, gas, and dry bulk transportation across food-grade, chemical, petroleum, and industrial bulk markets. Tank truck operations require specialized equipment (food-grade stainless, DOT 406/407 chemical tanks, MC331 compressed gas tanks), hazmat-endorsed drivers, and compliance with DOT regulations specific to each commodity type. KAG's scale and multi-commodity capability serve manufacturers and distributors with bulk liquid and gas transportation needs across diverse product categories.
- North America's largest tank truck carrier — liquid, gas, and dry bulk across all commodity types
- Multi-commodity capability: food-grade, chemical, petroleum, and industrial bulk
- Hazmat-endorsed drivers trained for specific commodity handling and emergency response
- DOT-compliant tank equipment: food-grade stainless, chemical tanks, compressed gas trailers
- Food safety compliance for food-grade liquid transport alongside chemical and petroleum
Best for: Chemical manufacturers and energy sector companies in North American chemical and petroleum corridors
Trimac provides bulk tank transportation across chemical, petroleum, and dry bulk commodity categories with operations concentrated in North America's chemical manufacturing and energy corridors. Trimac's chemical tank transportation serves chemical manufacturers needing ISO tank, chemical tank trailer, and pressurized gas transport with hazmat compliance. Their energy sector presence (petroleum product distribution and upstream oilfield chemicals) provides specialized capability for energy industry clients alongside standard chemical manufacturing transport.
- Bulk tank transportation across chemical, petroleum, and dry bulk commodities
- Chemical manufacturing corridor depth: Gulf Coast, Midwest, and Canadian markets
- Energy sector capability: petroleum distribution and upstream oilfield chemical transport
- ISO tank and chemical trailer operation with full hazmat compliance
- DOT safety record and regulatory compliance for complex chemical transportation
Best for: Shippers wanting the capacity depth of the largest US truckload carrier with emerging multi-mode capability
Knight-Swift is the largest US truckload carrier by revenue — formed through the merger of Knight Transportation and Swift Transportation — operating across dry van, temperature-controlled, and flatbed modes with the largest driver base in the industry. Knight-Swift's scale provides geographic coverage and capacity depth that smaller truckload carriers can't match in tight markets. Their LTL network (AAA Cooper and Midwest Motor Express, acquired through the US Xpress acquisition) adds LTL capability alongside truckload, creating a multi-mode carrier option.
- Largest US truckload carrier by revenue — dry van, reefer, and flatbed across all lanes
- LTL network capability via AAA Cooper and Midwest Motor Express acquisitions
- Scale advantages in tight markets — driver base and equipment count provide capacity depth
- Dedicated and one-way truckload programs for shippers requiring contractual capacity
- Multi-mode carrier: truckload + LTL from single carrier relationship
Less-Than-Truckload (LTL) Carriers
Best for: Shippers where LTL service reliability and cargo claim rate are the primary carrier selection criteria
Old Dominion consistently earns the highest on-time delivery and lowest cargo claim ratio ratings in the LTL industry — service performance metrics that reflect investment in terminal operations, driver training, and freight-handling standards. ODFL's terminal network density and their low-touch freight-handling model (reducing inter-terminal transfers) minimize cargo damage and transit time variability. For shippers where LTL service reliability is the primary decision variable, Old Dominion is the market benchmark. Their rates reflect the premium service level.
- Industry-leading on-time delivery and lowest cargo claim ratio in LTL market
- Terminal network density minimizing inter-terminal transfers and transit time variability
- Premium freight handling standards reducing cargo damage vs. industry average
- National coverage with service commitment backed by consistent performance metrics
- Technology platform with real-time tracking and automated proof of delivery
Best for: Shippers needing LTL coverage in secondary markets where established nationals have less frequent service
Saia LTL Freight has expanded aggressively into secondary and tertiary markets — adding terminals in markets where established nationals have historically provided thinner service frequency. For shippers distributing to less-served markets that Old Dominion and FedEx Freight cover with less frequency, Saia's expansion provides improved service options. Saia's service quality metrics have improved substantially alongside their geographic expansion, making them competitive with established nationals on service performance while providing broader market coverage.
- Aggressive geographic expansion into secondary and tertiary markets underserved by nationals
- Improving service quality metrics alongside geographic growth
- Competitive pricing in markets where national carrier capacity is thinner
- National backbone network with expanding coverage into new markets
- Technology investment in tracking, scheduling, and delivery notification
Best for: Shippers consolidating LTL with FedEx parcel/express services for unified carrier relationship and billing
FedEx Freight is one of the two largest LTL carriers in North America — backed by FedEx's global logistics brand and integrated with FedEx's parcel, express, and international networks. For shippers using FedEx for parcel and express alongside LTL, the FedEx Freight relationship creates a consolidated billing and account management structure. FedEx Freight's Priority and Economy service levels provide flexibility for shippers who want transit time options within a single carrier relationship.
- Top-2 LTL carrier by revenue — national coverage with Priority and Economy service levels
- FedEx network integration — consolidated billing with FedEx parcel and express
- National terminal network with service commitment across major US markets
- Technology integration with FedEx Ship Manager for multi-service shipment management
- International connection through FedEx global network for cross-border freight
Best for: Multi-national shippers needing LTL with cross-border North American coverage and European freight integration
XPO LTL is one of the largest LTL carriers in North America with a major European LTL operation — providing domestic US LTL alongside cross-border Canada-Mexico capability and European LTL for shippers with international freight programs. XPO's technology investment in LTL includes the XPO Connect platform for digital load tendering and tracking. XPO LTL's scale and technology investment position them as an alternative to FedEx Freight and Old Dominion for national LTL programs.
- Top-3 LTL carrier — national US coverage with Canada, Mexico, and European capability
- XPO Connect digital platform for load tendering, tracking, and carrier management
- Cross-border capability for North American supply chains spanning US, Canada, and Mexico
- European LTL network for shippers with transatlantic supply chain requirements
- LTL integrated within XPO's broader logistics platform including freight brokerage
Best for: Shippers with Southeast and Mid-Atlantic LTL volume seeking a privately-held carrier with consistent service
Estes Express Lines is the largest privately-held LTL carrier in the United States — operating a national terminal network with strong Southeast and Mid-Atlantic presence reflecting Estes's Virginia origins. Estes provides time-definite LTL service across the continental US with competitive rates and reliable service performance. The privately-held structure provides operational stability and long-term decision-making orientation without the quarterly earnings pressure of public carrier peers.
- Largest privately-held LTL carrier — national coverage with strong Southeast and Mid-Atlantic depth
- Time-definite LTL service with consistent transit commitments
- Competitive pricing with reliable service performance metrics
- Stable privately-held carrier — long-term operational orientation
- Technology tools for tracking, scheduling, and freight management
Best for: Shippers with US-Canada LTL volume seeking a national carrier with TFI International's operational investment
TForce Freight (formerly UPS Freight) operates a national LTL network following its acquisition from UPS by TFI International. The TFI International ownership has supported operational improvements and fleet investment. TForce's network covers the continental US with cross-border Canada capability through TFI's broader North American trucking platform. For shippers who previously used UPS Freight and continued with TForce, the carrier provides familiarity alongside ongoing service improvement investment.
- National LTL network with cross-border Canada coverage through TFI International
- Fleet investment and operational improvements under TFI ownership
- Continental US coverage with consistent transit time commitments
- Technology for tracking, EDI integration, and freight management
- Competitive pricing across national and regional LTL lanes
Best for: Shippers with Midwest/Southeast LTL volume or expedited LTL requirements needing a relationship-focused family-owned carrier
R+L Carriers (operating as Freight Shipping Services) is a family-owned LTL carrier with strong Midwest and Southeast regional presence and national network coverage. R+L's expedited LTL service and air-ride equipment options provide premium service for freight requiring accelerated transit or vibration-sensitive handling. The family-owned structure supports long-term customer relationship investment and operational stability. R+L's Time-Critical service program serves shippers with expedited LTL requirements.
- Family-owned LTL carrier with strong Midwest and Southeast regional depth
- Expedited LTL and Time-Critical service for accelerated transit requirements
- Air-ride equipment options for vibration-sensitive freight
- National coverage with regional strength in primary operating markets
- Customer relationship focus from family-owned operational culture
Intermodal & Diversified Carriers
Best for: Shippers with long-haul freight 750+ miles seeking intermodal cost savings and carbon reduction from the market leader
J.B. Hunt is the largest intermodal carrier in North America — operating a 53-foot domestic container fleet on Class I railroad networks (BNSF and Norfolk Southern) alongside dedicated contract, truckload, and brokerage businesses. J.B. Hunt's intermodal program provides shippers with the cost and sustainability advantages of rail transport (10–20% cost savings vs. FTL, significantly lower carbon emissions) on qualifying lanes above 750 miles. Their 360 technology platform provides digital booking and tracking for intermodal and brokerage freight.
- North America's largest intermodal carrier — dedicated container fleet on Class I railroads
- 10–20% cost savings vs. FTL on qualifying lanes with sustainability benefits
- 360 platform for digital intermodal booking, tracking, and capacity management
- Dedicated contract carriage alongside intermodal for multi-mode shipper programs
- BNSF and Norfolk Southern railroad partnerships for national intermodal coverage
Best for: Shippers wanting multi-mode flexibility (intermodal + truckload + dedicated) from a single large diversified carrier
Schneider National operates a diversified carrier platform spanning intermodal, truckload, dedicated, and bulk transport — one of the largest and most diversified trucking companies in North America. Schneider's orange intermodal containers are among the most recognized in the market; their intermodal program operates on Union Pacific and other Class I railroads complementing J.B. Hunt's BNSF network. The diversified platform means Schneider can serve shippers across modes within a single carrier relationship, providing flexibility as shipper freight profiles change.
- Diversified carrier: intermodal, truckload, dedicated, and bulk in single platform
- Intermodal on Union Pacific and Class I railroads complementing BNSF-focused competitors
- One of North America's largest trucking companies — fleet scale and geographic coverage
- Dedicated contract carriage for private fleet alternatives
- Bulk tanker operations for liquid and dry bulk commodity transport
Asset-Light / Agent-Based Carriers
Best for: Shippers with specialized, unusual, or oversize freight needing the flexibility of an agent-network carrier
Landstar operates an asset-light model through a network of independent agents and owner-operator carriers — providing capacity across virtually all freight types (dry van, flatbed, heavy haul, reefer, and specialized) without owning large company fleets. The agent network creates geographic breadth and freight specialization that fixed-fleet carriers can't replicate: Landstar agents with expertise in specific commodities, routes, or equipment types bring market knowledge that centralized operations managers don't maintain. For unusual freight, oversize loads, or specialized freight types, Landstar's agent network often finds capacity and solutions that standard carriers decline.
- Asset-light model through independent agents and owner-operators — all freight types and modes
- Specialized freight access: oversize, heavy haul, flatbed, and unusual cargo types
- Agent network geographic breadth covering markets that fixed-fleet carriers underserve
- No-touch model — Landstar coordinates while independent operators execute
- Variable cost structure: capacity scales with demand without fixed fleet overhead
Carrier Back-Office & Administrative Services
Best for: Carriers and freight brokers seeking to automate manual check-call and back-office document management workflows
Hubtek's TABi (Tracking and Back-office Intelligence) Virtual Assistant provides AI-powered back-office services to carriers — automating load tracking, check calls, document management, and freight data entry that carrier operations teams handle manually. TABi integrates with TMS platforms to automate the status update and documentation workflow, reducing the administrative burden on carrier staff while improving data accuracy and response times to broker and shipper check-call requests. The service addresses a specific operational pain point: carriers spend significant staff time on manual check calls and document handling that TABi automates.
- AI-powered load tracking automation — eliminates manual check calls for carrier operations teams
- Document management and freight data entry automation integrated with TMS platforms
- Broker and shipper check-call response automation improving data accuracy and speed
- Back-office workflow automation reducing administrative headcount requirements
- TMS integration for seamless data flow between TABi and carrier operating systems