Double L Group

What Double L Group does

Double L Group, LLC is a U.S. manufacturer of agricultural ventilation and livestock housing equipment, founded in 1973 and headquartered in Dyersville, Iowa. The company designs, manufactures, and sells ceiling inlets, wall inlets, exhaust fans, stir fans, evaporative cooling systems (cool cells and cooling pads), tunnel doors, PVC shutters, livestock flooring, and ductwork organized into four product divisions serving Broiler poultry, Swine, Layer (egg), and Dairy producers. Technical differentiation is anchored in patented products including the DL3232 Insulated Air Inlet (U.S. Patent No. 11,131,478) and the AC3010 360-degree actuated ceiling inlet, European curved blade designs, EC (Electro Commutated) direct-drive motors, and third-party BESS Labs-validated airflow and energy efficiency performance.

The business operates a distributor-driven go-to-market model: eight regional sales managers covering U.S. territories support agricultural equipment distributors, equipment installers, and integrators across Broiler, Swine, Layer, Dairy, and Retrofit segments. The company is privately held, LLC-structured, and reportedly founder/management-owned with no disclosed institutional investors, external funding, or M&A activity. Revenue is generated from one-time equipment sales priced via quote-based, project-level engagements (individual components or bundled ventilation packages for new construction and retrofit), with billing structured as multi-year contracts. Over the past decade the company has launched more than 20 products and has strategically pivoted from a single-product inlet company to a complete ventilation systems provider, including integrated bundles such as the Ultimate Ventilation Package introduced at IPPE 2023 and the Direct X product family launched across 2025–2026. The customer base is the broad U.S. commercial livestock industry, reached through distributor and integrator channels rather than direct end-customer relationships.

Name

Double L Group

Legal name

Double L Group, LLC

Website

https://doublel.com

Company type

Private

Founded year

1973

Operating status

Operating

Headcount range

11–50 employees

Short description

Double L Group is a U.S. manufacturer, founded in 1973 and based in Dyersville, Iowa, that designs and sells agricultural ventilation and housing equipment — including ceiling inlets, exhaust fans, evaporative cool cells, flooring, and tunnel doors — to commercial broiler, swine, layer, and dairy producers via a U.S. distributor network.

Ownership category

akta.pro rank

Product category

Agricultural Ventilation Equipment

NAICS

Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341)

SIC

Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564), Refrigeration & Service Industry Machinery (3580)

akta.pro primary industry

Fans, Blowers & Ventilation Units (Supply/Exhaust/Inline) (IMADANAB)

Keywords

• Agricultural ventilation equipment
• Livestock housing systems
• Poultry climate control
• Swine flooring products
• Evaporative cooling systems

Headquarters

HQ city

Dyersville

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Equipment Sales: Double L Group generates revenue through the sale of agricultural ventilation equipment and livestock housing products. Products are sold through a distributor network and direct to producers. Revenue is generated from individual product sales as well as bundled ventilation packages for new construction and retrofit projects.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Double L Group, founded in 1973 and based in Dyersville, Iowa, manufactures and sells agricultural ventilation and livestock housing equipment for commercial broiler, swine, layer, and dairy producers. The company produces ceiling and wall air inlets, exhaust fans, stir fans, evaporative cooling cells and pads, tunnel doors, PVC shutters, ductwork, and swine flooring, organized into four product divisions and sold primarily through a U.S. distributor and installer/integrator network.

Product overview

Double L Group is an agricultural equipment manufacturer specializing in ventilation and housing solutions for four livestock sectors: Broiler, Swine, Layer (egg production), and Dairy. Founded in 1973 and headquartered in Dyersville, Iowa, the company offers a portfolio of hardware products organized into four divisions, collectively spanning over 20 product lines. The Broiler Division provides ceiling inlets, wall inlets, flooring, PVC shutters, exhaust fans, stir fans, tunnel doors, accessories, and evaporative cooling. The Swine Division covers ceiling inlets, wall air inlets, ductwork, PVC shutters, fans, flooring, metals, accessories, tunnel doors, and retrofit solutions. The Layer Division serves egg production with ceiling inlets, wall inlets, exhaust fans, stir fans, shutters, accessories, hoods, and tunnel vents. The Dairy Division provides fans, evaporative cooling, inlets, shutters, and accessories. Key named products include the EcoTight Tunnel Door (R8 insulated), DirectAire Cool Cell and Cooling Pads (evaporative cooling), RetroAire Inlet (flush mount replacement inlet), GalvX Inlet (curved-blade wall inlet), DL3232 Insulated Air Inlet (patent-protected, 4,144 cfm), AC3010 360° Ceiling Air Inlet (patented, BESS tested), Premier Flooring (swine flooring), Direct X Exhaust Fan Line (EC motor direct drive), DX Circulation Fans, DX Vertical Fan, Direct X Darkout Box, 4413 Weatherhood, and the Ultimate Ventilation Package (bundle of six products launched at IPPE 2023). The company transitioned from selling individual products to complete ventilation systems over its 53-year history, launching over 20 products in the past decade alone.

Differentiator

Problem solved

Functional benefit

Products and services

• AC3010 Actuated Fully Insulated 360° Ceiling Air Inlet Patented 360-degree airflow actuated ceiling vent with radius corner design for even air distribution; fully insulated housing, tight rubber seal, removable bottom lid with no bolts or screws, and no blades to break or get stuck. Designed for cold weather climates with minimal freeze-up and moisture buildup. Used in swine and other livestock housing.
• DL3232 Insulated Air Inlet U.S. Patent No. 11,131,478 swine inlet with aerodynamic curved insulated blades that direct attic air along barn ceilings for efficient air mixing; 4,144 cfm @ 0.10 SP, fits standard filter boxes, fully insulated to minimize condensation and freeze-up.
• RetroAire Inlet Flush mount inlet designed to replace galvanized inlets in dairy environments; European curved blade design, 2,108 cfm @ 0.1 SP (8" model), fully insulated blade, plastic seal, continuous hinge, rodent and beetle resistant, and flush mount design to eliminate air leakage. Also available in 13" size.
• GalvX Inlet State-of-the-art wall inlet replacing galvanized inlets in poultry facilities with European curved blade design for precise air control and air mixing along ceilings. Fully insulated blades with brush seals prevent air leakage and condensation; UV-protected construction is resistant to rodents and beetles. Suitable for retrofits and new installations.
• Deluxe DirectAire 4413 Inlet Insulated European curved sidewall inlet with recessed design, delivering approximately 3,266 cfm @ 0.1 SP. Maintains 50% greater air velocity 20 feet from vent than conventional metal vents, fully sealed against air leakage and light, directs airflow through top opening rather than sides or bottom, and is rodent and corrosion resistant.
• EcoTight Tunnel Door Insulated tunnel ventilation door designed to prevent air leakage common in standard tunnel doors. R-Value of R8, available in 4' and 5' sizes with a tight seal system for improved house tightness.
• Direct X Exhaust Fan Line Direct drive exhaust fan line for poultry facilities featuring an advanced Electro Commutated (EC) motor with energy efficiency and built-in soft start, maintenance-free direct drive system (no belts), durable butterfly doors for tight seal, and fiberglass-reinforced shell for corrosion resistance.
• DX Circulation Fans Circulation fans for poultry houses providing longer air throw and superior air mixing. Two-speed operation (high/low), high thrust CFM for powerful airflow, powder-coated steel blades, brushless motor, and energy-efficient design for consistent air distribution and uniform temperatures.
• DX Vertical Fan Vertical circulation fan engineered for poultry facilities with an efficient air mixing design for uniform temperatures, maintenance-free direct drive motor, corrosion-resistant construction, adjustable air distribution, ceiling mount installation with chain links, and optional variable speed control.
• DirectAire Cool Cell Plastic evaporative cooling system for livestock facilities featuring a unique trough design with 20% increased water capacity, UV-resistant durable PVC construction, open-top design for visual inspection, and fewer components for easy installation. Internal water capacity 2.6 gallons per ft.; 6" pad thickness; pad height varies 36"-72".
• DirectAire Cooling Pads Cooling pad solution for livestock facilities featuring a unique structure providing larger evaporation surface, high face velocity without water droplet carryover, corrosion and mildew resistance, low pressure drop, and a self-cleaning unequal flute design. Available in multiple sizes including 6" x 36", 6" x 48", 6" x 60", 6" x 72", and 6" x 84".
• Premier Flooring High-performance swine flooring with 24" x 24" size and 7/16" hole opening. High-visibility green color, crowned tops, 2-directional windows, high-low traction, minimized seam areas, snap-over-beam installation, and double-wall design. Reduces cleaning time by up to 3 hours per turn in an 8,000 head nursery.
• 4' x 6' Pig Mat (4872 Wean-to-Finish Hog Mat) High-density polyethylene wean-to-finish hog mat designed to reduce drafts on nursery pigs, act as a feeding platform for hand feeding, and keep pigs warm and dry. 1/8" deep oval indentations for creep feed, 1-1/4" raised feed lip, handles for easy transport, accommodates ~50 pigs. Third-party testing shows 36% less energy required to maintain pig body temperature versus concrete floor.
• Double L Pop Door Solid airtight closure access door for layer facilities featuring fully insulated construction to prevent condensation, bypass wall frame for full sealing, compatibility with automated or manual winching systems, and predator prevention design. Available in various custom sizes.
• Direct X Darkout Box Light-blocking baffle system for poultry facilities eliminating sunlight intrusion while maintaining airflow. Corrosion-resistant fiberglass housing, engineered darkout blade and baffle system, 7' x 6' housing, full dark (11.5") and half dark (5.75") options, flush wall-mount design, compatibility with 36", 52", and 57" fans, and offset hinge bracket for narrow 36" aisles.
• 4413 Weatherhood Exterior ventilation accessory for broiler and agricultural facilities providing weather protection while maintaining airflow. UV-protected plastic construction, oversized profile for minimal air restriction, closed-top weather protection, easy standard framing installation, and darkout compatibility.
• Ultimate Ventilation Package Comprehensive poultry house ventilation package comprising six integrated products: EcoDrive Winch (multi-application drive system), RetroAire (retrofit ventilation inlet), GalvX (galvanized wall inlet replacement), DirectAire Plus Stir Fan (15% CFM improvement), EcoTight Tunnel Door (tight seal system), and DirectAire Cool Cell (evaporative cooling). Customizable combinations available for retrofitting or new construction.

Quantifiable outcome

• 36% less energy required to maintain pig body temperature with Filter-Eeze flooring vs. concrete floor
• +6 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature11 records

Partnerships

One partnership is on record.

• Equipment Installers and IntegratorscoreImplementation/ SI/ Consulting PartnerDouble L Group works with equipment installation companies and integrators who specify and install their ventilation products in livestock facilities. These partners help customers select appropriate products and ensure proper installation for optimal performance.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• PigTek / Pig Improvement Company: Supplier of swine production equipment including ventilation, flooring, and housing systems. Directly comparable to Double L's Swine Division (ceiling inlets, ductwork, fans, Premier Flooring) with overlapping product features and U.S. swine producer customers.
• Fancom: Specialist in climate computers, ventilation fans, and inlets for poultry and swine houses. Closely comparable product mix to Double L's Direct X, DirectAire, and inlets lines, with similar focus on controlled-environment livestock housing.
• Cumberland (AGCO): Poultry-focused equipment brand under AGCO offering ventilation, heating, cooling, and housing products for broiler, layer, and turkey operations. Closely comparable in product scope (fans, inlets, evaporative cooling) and customer base to Double L's Broiler and Layer divisions.
• GSI Group (AGCO): Major manufacturer of grain storage, material handling, and protein production equipment including poultry and swine climate/ventilation systems. Directly comparable product portfolio (fans, inlets, controls) and U.S. distribution footprint; notable overlap because Double L's Southeast Sales Manager Kyle Burns previously worked at GSI.
• Automated Production Systems (AP / APE): Manufacturer of poultry housing and ventilation equipment, including layer and broiler systems. Comparable to Double L's Layer and Broiler Divisions across inlets, fans, and tunnel ventilation components with overlapping distributor-driven U.S. sales channels.
• Val-Co: Manufacturer of poultry and swine equipment including ventilation fans, inlets, cooling systems, and flooring. Closely comparable to Double L Group across broiler, layer, and swine product lines with a similar distributor-led U.S. sales model.

Broad incumbents

• Munters: Global supplier of climate and air-treatment solutions including livestock ventilation, evaporative cooling, and air purification. Overlaps with Double L's fan, inlet, and DirectAire cool cell lines but operates at much larger global scale with industrial and agricultural customers.
• Big Dutchman: Global leader in poultry and swine housing equipment with a broad portfolio of ventilation, feeding, and climate-control systems. Highly comparable to Double L Group across all four served species but at materially larger scale and international reach, including EC motor and direct-drive fans that overlap with Double L's Direct X line.
• CTB Inc. (Chore-Time): U.S.-based broad agricultural equipment manufacturer best known for Chore-Time poultry feeding and ventilation systems. Direct competitor in broiler and layer ventilation with similar fan, inlet, and climate-control offerings and a comparable distributor-led U.S. sales model.

Regional players

• SKOV A/S: Danish manufacturer of climate control and ventilation systems for livestock production globally. Direct functional competitor to Double L's EC motor and inlet offerings, especially in swine and poultry barn climate management; primarily serves Europe and parts of Asia but increasingly active in U.S. markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

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Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

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 Double L Group