What Trinity Trailer Mfg does

Trinity Trailer Mfg., Inc. is a privately held, family-owned manufacturer founded in 1975 in Boise, Idaho, that designs and builds self-unloading belt trailers for bulk commodity hauling across North America. The company's core technology is the patented EAGLE BRIDGE frameless stainless steel belt trailer, which flexes up to 36 degrees over rough terrain and unloads via a hydraulic PTO-driven conveyor in as little as 90 seconds; the platform has been extended into the EAGLEBED chassis-mounted truck bed and the AGRI-FLEX silage-focused variant. Trinity is the only exclusive belt trailer manufacturer in the market and operates three generations of family ownership under President Cameron Eisenman, grandson of founder Leonard Eisenman.

The company serves six primary end markets: agricultural commodities (potatoes, sugar beets, onions, grains), livestock feed (silage, distillers grain, brewers mash), fertilizer and waste management (poultry litter, compost, biosolids), recycling and mulch, mining and aggregate, and third-party transportation/logistics carriers. Pricing on the six published configurations ranges from approximately $107,230 for a 42-foot two-axle feed/litter trailer to $134,550 for a 53-foot four-axle high-capacity bulk commodities trailer, with all units custom-built and sold through direct sales in Boise and Pasco, WA, plus an authorized dealer network spanning roughly ten U.S. states and Canada.

Trinity monetizes across the equipment lifecycle via seven revenue streams: new trailer sales, pre-owned inventory, a rental fleet, parts (10,000+ SKUs covering Trinity and competitors), service and repair, a Re-Bin trailer restoration program, and in-house financing through its wholly-owned subsidiary Thirty3 Capital. Customer logos include Foster Farms, Grimmway Farms, Pilgrim's Pride, Rose Acre Farms, Waste Management, Sierra Pacific Industries, and Connecticut Mulch, with named fleets running as large as 70 trailers (Burbank Express) and 175 trucks (Connecticut Mulch). The company employs 51-100 people and offers a 3-year limited warranty, which it positions as industry-leading.

Name

Trinity Trailer Mfg

Legal name

Trinity Trailer Mfg., Inc.

Website

https://trinitytrailer.com

Company type

Private

Founded year

1975

Operating status

Operating

Headcount range

51–100 employees

Short description

Trinity Trailer Mfg, founded 1975 in Boise, Idaho, designs and manufactures self-unloading stainless steel belt trailers (EAGLE BRIDGE) for bulk commodity haulers across agriculture, fertilizer, recycling, mining, and transportation/logistics in the United States and Canada, supported by captive financing through Thirty3 Capital.

Ownership category

akta.pro rank

Product category

Bulk Hauling Trailers

NAICS

Truck Trailer Manufacturing (336212)

SIC

Truck Trailers (3715)

akta.pro primary industry

Truck Trailer Manufacturing (Dry Van/Reefer/Flatbed/Tanker) (IMACABAH)

akta.pro secondary industry

Semi-Trailer Manufacturing (Dry Van/Reefer/Tanker/Lowboy) (IMACAGAB)

Keywords

• Self-unloading belt trailers
• Bulk commodity hauling
• Agricultural trailers
• Stainless steel trailers
• Trailer financing services

Headquarters

HQ city

Boise

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. New Trailer Sales: Custom-built belt trailers sold directly to customers. Trailers are configured to customer specifications with various options including belt width, length, axle configuration, door types, and tarp systems.
2. Parts Sales: Over 10,000 parts in stock for Trinity trailers and other manufacturers' belt trailers including Trail King, Western, Wilson, Star, IMCO, and Red River.
3. Service and Repair: Full service and repair capabilities including bin services, installation, general services, and repair services. Includes re-bin (restoration) program.
4. Rental Fleet: Rental trailers available for short-term needs to meet fleet capacity requirements.
5. Pre-Owned Equipment Sales: Stock of affordable, top-quality used equipment ready for service.
6. Trailer Re-Bin Program: Restoration service that rebuilds trailers including new stainless steel bin, framework, kingpin, sandblasting, repainting, and component replacement.
7. Equipment Financing: In-house financing through Thirty3 Capital offering flexible loan and lease programs for new and pre-owned equipment with terms up to 90 months.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels7 records

Core offering

Trinity Trailer Mfg designs, manufactures, and sells custom self-unloading stainless steel belt trailers (EAGLE BRIDGE, EAGLEBED, AGRI-FLEX) for bulk-hauling of agricultural commodities, feed, seed, fertilizer, mulch, mining aggregates, and recycling materials. The company also supports its installed base with a 10,000+ SKU parts inventory, service and repair, a Re-Bin trailer restoration program, a rental fleet, and in-house equipment financing through Thirty3 Capital.

Product overview

Trinity Trailer Mfg is the exclusive belt trailer manufacturer, offering a portfolio of stainless steel self-unloading belt trailers centered on the EAGLE BRIDGE platform (invented in 1975) alongside the EAGLEBED truck bed variant and AGRI-FLEX silage trailer. The company provides comprehensive support through a rental fleet, pre-owned inventory, parts distribution (over 10,000 parts for Trinity and other brands), expert service and repair, the Re-Bin restoration program, and in-house financing via Thirty3 Capital. Every trailer is custom-designed and built to customer specifications with extensive customization options including door systems, tarps, liners, remote controls, and specialized packages.

Differentiator

Problem solved

Functional benefit

Brands

• EAGLE BRIDGE®: The flagship frameless stainless steel belt trailer, invented in 1975 for self-unloading bulk commodities. Known for flexibility, durability, and corrosion resistance.
• EAGLEBED®
• AGRI-FLEX®
• Thirty3 Capital

Products and services

• EAGLE BRIDGE Belt Trailer The flagship self-unloading stainless steel belt trailer, invented and patented in 1975, designed for hauling and unloading bulk commodities including agricultural products, fertilizers, and aggregates. Features a frameless design that flexes 18 degrees in each direction (36 degrees total) to prevent cracking on rough terrain and deliver corrosion resistance under heavy payloads.
• EAGLEBED Truck Bed

Quantifiable outcome

• Unload times as quick as 90 seconds for silage applications
• +3 more outcomes

Named customers12 records

Segments6 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Wilson Trailer: Iowa-based manufacturer of trailers including grain, flatbed, and belt/transfer trailers. Directly competes with Trinity in the belt trailer segment for agricultural and bulk commodity hauling, with overlapping customer base and dealer network in the Midwest.
• Trail King Industries: North Dakota-based trailer manufacturer producing belt trailers, side dumps, and bottom dumps among other types. Direct competitor to Trinity in the self-unloading belt trailer category, with broader product breadth across construction, agriculture, and hauling segments.
• East Manufacturing: Randolph, Ohio-based manufacturer specializing in aluminum and steel dump, transfer, and belt trailers for agricultural and aggregate hauling. Competes directly with Trinity's EAGLE BRIDGE platform for bulk commodity fleet customers, particularly in the Eastern US.
• Timpte Industries: Nebraska-based manufacturer specializing in aluminum and steel hopper/bulk commodity trailers. Competes with Trinity for agricultural and bulk hauling customers, particularly in grain and fertilizer applications in the central US.
• IMCO (Innovative Manufacturing & Custom Outfitting): Manufacturer of custom bulk commodity and belt trailers for agricultural and waste hauling. Trinity explicitly maintains parts compatibility for IMCO belt trailers, confirming them as a direct competitor in the same niche.

Broad incumbents

• Wabash National Corporation: Publicly traded (NYSE: WNC) large-scale manufacturer of trailers including dry vans, reefers, and platform trailers. A broader-line incumbent that overlaps with Trinity in select bulk-haul and agricultural trailer categories while serving a much wider customer set across multiple industries.
• MAC Trailer: Ohio-based manufacturer of dump, flatbed, transfer, and specialty trailers. Adjacent competitor offering alternatives to Trinity's belt trailer platform, particularly in construction and agricultural bulk hauling.
• Stoughton Trailers: Wisconsin-based manufacturer of dry vans, platforms, and specialty trailers. Broader-line trailer OEM with some adjacency to Trinity in bulk commodity and agricultural hauling applications.
• Heil Trailer (REV Group): REV Group subsidiary manufacturing tankers, dump, and bulk commodity trailers. A larger incumbent in the bulk hauling segment with broader product lines competing with Trinity in aggregate and mining applications.

Emerging players

• Sudenga Industries: Iowa-based manufacturer of grain handling equipment, augers, and bulk trailers. Adjacent competitor serving agricultural bulk hauling customers with alternative unloading architectures (auger-based) that compete with Trinity's belt systems in some farm commodity applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

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• LinkedInlinkedin.com/company/trinity-trailer-mfg-inc
• Instagraminstagram.com/trinitytrailermfg
• Xx.com/trinitytrlrmfg

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Trinity Trailer Mfg