Green APU

What Green APU does

Green APU is a privately held, family-owned US manufacturer founded in 2011 and headquartered in Lemont, Illinois, that designs, engineers, and assembles diesel auxiliary power units (APUs) for Class 8 semi-trucks. Its flagship product, the 5th-generation Star Edition, is built around a 3-cylinder Kubota diesel engine delivering 26,000 BTU of heating and cooling, housed in an all-aluminum non-rusting chassis weighing approximately 350 pounds. The technical architecture is deliberately engineered around automotive-standard, non-proprietary components sourced from NAPA and any auto parts retailer, enabling service by any qualified diesel mechanic and eliminating software subscriptions.

The company sells APU units at a $14,999 MSRP through direct e-commerce, 35 authorized service centers across the United States, and a featured distribution partnership with Fontaine Modification for fleet installation and upfitting. Revenue mechanics combine one-time hardware sales with a 218+ SKU aftermarket parts catalog and flexible financing programs for owner-operators and fleets. Primary customer segments are individual owner-operator drivers and commercial trucking fleets, with the company positioned around a 14-month customer payback period driven by fuel savings, aftertreatment savings, reduced engine wear, and higher resale values.

Green APU complements its commercial operation with a content marketing footprint (website Stories, YouTube, and broad social media presence), a Green APU Racing Team that builds brand credibility in the trucking community, and 24/7 USA-based technical support backed by a 2-year unlimited-hours warranty. The business is bootstrapped with no external funding rounds or parent company, and the ownership structure remains concentrated with the founding family.

Name

Green APU

Legal name

Green APU

Website

https://greenapu.com

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

51–100 employees

Short description

Green APU is a family-owned US manufacturer that designs, engineers, and assembles diesel auxiliary power units for semi-trucks, selling the Star Edition APU at $14,999 MSRP through direct e-commerce, 35 service centers, and Fontaine Modification to owner-operators and fleets.

Ownership category

akta.pro rank

Product category

Diesel Auxiliary Power Units for Commercial Trucks

NAICS

Engine, Turbine, and Power Transmission Equipment Manufacturing (3336), Other Engine Equipment Manufacturing (333618), Motor Vehicle Transmission and Power Train Parts Manufacturing (33635)

SIC

Engines & Turbines (3510)

akta.pro primary industry

Hybrid Powertrain Integration Manufacturing (ICE-HEV/PHEV modules) (IMACAHAJ)

akta.pro secondary industry

Automotive ECUs/Control Modules & Embedded Electronics Manufacturing (IMACAJAC)

Keywords

• Diesel auxiliary power units
• Semi-truck idle reduction
• Trucking fleet fuel savings
• APU parts and service
• Kubota diesel APU

Headquarters

HQ city

Lemont

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, Marketing or Sales, Technology or R&D

Revenue model

1. APU Unit Sales: Primary revenue from selling Green APU Star Edition diesel auxiliary power units for semi-trucks. Units are sold directly and through channel partners with MSRP starting at $14,999.
2. Parts and Components: Extensive catalog of replacement parts including filters, belts, engine components, electrical parts, cooling/heating systems, and accessories. Over 218 products available.
3. Financing Services: Flexible financing options offered to help owner-operators and fleets invest in APU units, generating revenue through financing arrangements.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Green APU manufactures and sells the Star Edition, a 5th-generation diesel auxiliary power unit (APU) for Class 8 semi-trucks, powered by a 3-cylinder Kubota diesel engine and delivering 26,000 BTU of heating and cooling without main-engine idling. The company complements the unit with an extensive catalog of 218+ replacement parts, flexible financing, and installation/maintenance through 35 authorized U.S. service centers and its featured installer/distributor Fontaine Modification. All products are designed and assembled in the USA at the company's Lemont, Illinois headquarters using standard automotive parts available nationwide.

Product overview

Green APU offers a single core product line: the Star Edition diesel auxiliary power unit (APU) for semi-trucks. This 5th-generation unit provides heating, cooling, and electrical power without engine idling. The company complements its APU with a comprehensive parts ecosystem (filters, belts, engines, electrical components, heat/AC parts), financing options, and 35 service locations nationwide. The product is designed around standard automotive parts (Kubota diesel engine, automotive-grade components) that can be sourced from any auto parts store or NAPA, enabling any qualified diesel mechanic to service it.

Differentiator

Problem solved

Functional benefit

Brands

• Star Edition: 5th-generation diesel auxiliary power unit for semi-trucks, powered by a 3-cylinder Kubota engine, delivering 26,000 BTU of heating and cooling.

Products and services

• Green APU Star Edition Diesel APU 5th-generation diesel auxiliary power unit for Class 8 semi-trucks, powered by a 3-cylinder Kubota diesel engine, delivering 26,000 BTU of heating and cooling without main-engine idling. Housed in an all-aluminum non-rusting enclosure (~350 lbs), built with standard automotive-grade parts available nationwide, and backed by a 2-year warranty, 24/7 U.S.-based technical support, and a 14-month payback period based on fuel savings.
• Green APU Replacement Parts Catalog Catalog of 218+ replacement parts for the Star Edition APU and related systems, including filters, belts, engine components, electrical parts, cooling/heating parts, and accessories, with prices ranging from $2.50 to $1,199.99 and available through the company's e-commerce storefront and authorized service centers.
• Green APU Financing Program Direct financing arrangements offered by Green APU to help owner-operators and trucking fleets purchase Star Edition APU units, structured as a financing form with associated savings calculator on the company website.
• Installation, Maintenance and Service via Authorized Service Centers Installation, scheduled maintenance, diagnostics, and repair services for Star Edition APUs delivered through 35 authorized service centers across the United States, supplemented by 24/7 U.S.-based technical support.

Quantifiable outcome

• 14-month payback period on $14,999 APU investment based on default inputs (10 idle hours/day, 320 days/year, $3.90/gallon diesel)
• +3 more outcomes

Named customers2 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Fontaine ModificationcoreChannel Partner/ Reseller/ DistributorFeatured installer and distributor partner providing APU sales, installation, and upfitting options for trucking fleets. Partnership expands nationwide installation coverage.
• Kubota Engine AmericacoreTechnology or IntegrationEngine supplier for Green APU products. Kubota has been established since 1890 and U.S. Engine Division became Kubota Engine America (KEA) in 1998 in Lincolnshire, IL. Powers Green APU Star Edition with 3-cylinder diesel engine.
• Conway Imports Auto SalesminorGTM or Marketing PartnerRacing partner and sponsor. 'Biggest Auto Barn in Chicagoland with over 30,000 horses (mechanical ones).' Puts honesty, integrity, and loyalty first.
• Rottler ManufacturingminorGTM or Marketing PartnerRacing partner since 1923, known for leading-edge technology in engine building machinery for custom shops, diesel jobbers, and high-volume production facilities.
• Precision Metal ProductsminorGTM or Marketing PartnerRacing partner providing fabrication and manufacturing solutions since 1995. Committed to exceeding client expectations with superior and cost-effective products.
• Action Truck Parts Inc.minorGTM or Marketing PartnerRacing partner serving Chicagoland's truck parts needs since 2005. Joined VIPAR Heavy Duty in 2013 as premier aftermarket heavy-duty parts distributor.
• Precision Turbo & EngineminorGTM or Marketing PartnerRacing partner founded in 1987, one of the world's foremost manufacturers of high-performance aftermarket turbochargers setting quality standards since late 1990s.

Scale indicators5 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Bergstrom Inc. US-based manufacturer of the NITE no-idle system (Nite Phoenix, NITE Plus) for commercial trucks, providing battery-powered and engine-based idle reduction. Direct competitor in the North American truck APU market.
• Webasto: German tier-1 supplier of truck APUs (BlueCool and Thermo Top Evo), coolant heaters, and roof/HVAC systems. Competes head-to-head with Green APU in diesel-powered sleeper-cab climate and idle-reduction systems.
• Carrier Transicold: Carrier's transport refrigeration business producing engine-off climate solutions and APUs (Vector eCool, Comfort Series). Direct competitor in diesel-idle-reduction for trucks and adjacent reefer market.
• Phillips & Temro: US manufacturer of zeroRPM and ICEzero engine-off thermal-management and idle-reduction systems for heavy-duty trucks. Direct competitor in diesel and hybrid idle-reduction APUs.
• Idle Free Systems: Manufacturer of the ReRun and Plug-In battery-electric idle-reduction systems for work trucks and Class 8 tractors. Direct peer taking an EV approach to the same anti-idling problem Green APU solves with diesel.
• Dometic: Global manufacturer of mobile climate solutions including the Dometic ComfortPro diesel APU and FreshJet rooftop HVAC for trucks. Direct APU competitor with overlapping truck sleeper-cab target market.
• Thermo King (Ingersoll Rand): Global market leader in transport refrigeration and truck HVAC, including the Precedent and TriPac APU/eAPU product lines for Class 8 sleeper cabs. Directly competes with Green APU in diesel and electric APU/idle-reduction for semi-trucks.
• Eberspaecher: German automotive supplier producing Airtronic and Hydronic diesel heaters plus commercial-vehicle APUs and climate systems. Competes with Green APU in diesel-fueled sleeper-cab heating/APU markets.
• Espar (Eberspaecher brand): Diesel-powered air and coolant heater brand under Eberspaecher targeting commercial trucks, RVs, and specialty vehicles. Direct competitor in diesel-based cab-heating and APU-adjacent climate systems.

Others

• Kubota Engine America: Supplier partner providing the 3-cylinder Kubota diesel engine used in Green APU's Star Edition. Not a market competitor, but a critical technology partner whose small industrial-diesel platform is adjacent to APU power-unit design.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/apu_green
• YouTubeyoutube.com/@GreenAPU
• Facebookfacebook.com/GreenAPU
• LinkedInlinkedin.com/company/greenapu
• Instagraminstagram.com/green_apu

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Green APU