Westport Innovations
Westport Innovations was a Canadian developer of low-emission engine and fuel-system technologies for natural gas, hydrogen, and other alternative fuels.
Last updated October 14, 2026
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Overview
Westport Innovations was a Vancouver-based Canadian technology company focused on adapting internal-combustion engines to cleaner-burning fuels. Its work covered compressed natural gas, liquefied natural gas, hydrogen, and biofuels including landfill gas. The company became particularly associated with high-pressure direct injection technology, commonly known as HPDI, which enabled a diesel engine to operate on natural gas while preserving much of the performance, fuel economy, durability, and reliability expected from a conventional diesel powertrain. The company’s origins lay in research conducted at the University of British Columbia in the early 1980s. Mechanical engineering professor Philip Hill and a team of graduate students and research engineers investigated ways to improve natural-gas combustion in diesel engines. Their objectives included reducing nitrogen-oxide emissions and particulate pollution without sacrificing the operating characteristics of diesel engines. Because funding was limited and suitable commercial components and test equipment were difficult to obtain, the research group designed and built much of its own hardware. This experimental work supplied the technical foundation for the company that followed. A central technical insight was to use a small pilot injection of diesel fuel to initiate combustion, followed by high-pressure direct injection of natural gas. This arrangement allowed natural gas to be used in an engine architecture derived from diesel technology without requiring a fundamental redesign of the combustion chamber. In 1994, Hill met David Demers through UBC’s University-Industry Liaison Office. The two subsequently established Westport Innovations Inc. in 1995 to commercialize the HPDI concept and related alternative-fuel technologies. Westport developed its business through partnerships, joint ventures, acquisitions, and supply agreements rather than relying solely on internally produced engines. In 2001 it joined Cummins in creating Cummins Westport, a business supplying medium-duty natural-gas engines. It later formed relationships with Beijing Tianhai Industry, Weichai Power, and Hong Kong Peterson to address fuel-storage systems and alternative-fuel engines in China and other markets. Its technology portfolio expanded from heavy-duty applications into light-duty vehicles, industrial engines, power generation, shipping, and fuel-system components. The company launched a heavy-duty engine and liquefied-natural-gas fuel-system offering in 2006, based initially on the 15-litre Cummins ISX platform. It also entered supply discussions with Volvo for natural-gas fuel systems and, through acquisitions in Europe, added light-duty engine, bi-fuel, liquefied-petroleum-gas, and fuel-system capabilities. In 2008 Westport began trading on Nasdaq under the symbol WPRT while continuing its Toronto Stock Exchange listing. In 2010 it acquired OMVL and gained control of the Juniper Engines business, which became Westport Light Duty. In 2011 it acquired Emer, a fuel-system and components manufacturer, and AFV, a Swedish bi-fuel engine and alternative-fuel-system company associated with Volvo Cars. Westport’s commercial rationale was tied to the potential for natural gas to reduce local air pollutants and, in some applications, operating costs compared with petroleum diesel. Its markets depended on engine manufacturers, vehicle original-equipment manufacturers, fuel suppliers, and the availability of natural-gas refuelling infrastructure. The company therefore pursued technology licensing, joint ventures, component supply, and OEM integration across several regions. By April 2013, engines using Westport-developed technology were being shipped to truck manufacturers in the United States as fleet operators began considering natural gas for portions of their heavy-duty vehicle fleets. The supplied material does not establish the company’s later corporate status or a current operating position; subsequent developments should therefore be verified separately.
History
Westport Innovations emerged from University of British Columbia research into natural-gas combustion during the early 1980s. Philip Hill, a mechanical engineering professor, led work intended to make natural gas viable in diesel-derived engines while retaining diesel-like performance, efficiency, durability, and reliability. The research also targeted lower nitrogen-oxide emissions and reduced particulate pollution. With limited access to commercial components and test equipment, Hill’s team constructed much of its own experimental apparatus, producing technical results that later supported commercialization. The principal technical approach used a small diesel pilot injection to initiate combustion before a high-pressure direct injection of natural gas. This allowed a diesel engine to operate on natural gas without a fundamental change to the combustion chamber. Hill met David Demers in 1994 through UBC’s University-Industry Liaison Office, and the two incorporated Westport Innovations Inc. in 1995. Commercial development proceeded through industrial alliances. In 2001 Westport and Cummins formed Cummins Westport, which supplied medium-duty natural-gas engines ranging from approximately 150 horsepower to more than 400 horsepower. The engines were integrated into numerous original-equipment vehicle platforms and were deployed internationally. In 2005 Westport and Beijing Tianhai Industry began cooperation that later produced BTIC Westport, a joint venture aimed at transportation natural-gas tanks. In 2006 Westport introduced a heavy-duty engine and LNG fuel-system package for trucking. The initial HPDI application was based on the 15-litre Cummins ISX engine, although the architecture was intended to be adaptable to other original-equipment platforms. In 2008 Westport created a further Chinese joint venture with Weichai Power and Hong Kong Peterson. Weichai Westport addressed alternative-fuel engines for vehicles, heavy trucks, power generation, and shipping. The same year, Westport entered the Nasdaq market under WPRT while continuing to trade in Toronto. The company continued to cultivate OEM relationships. In 2009 it and Volvo committed to a supply agreement involving natural-gas fuel systems for commercial heavy-duty applications. Westport broadened its light-duty and component capabilities through acquisitions. In July 2010 it acquired OMVL and OMVL’s 51 percent interest in Juniper Engines, making Juniper wholly owned; the business became Westport Light Duty and offered natural-gas and LPG engines and fuel systems for light-duty automotive and industrial customers. In 2011 Westport acquired Emer, a fuel-system and components manufacturer, and AFV, a Swedish bi-fuel engine maker and alternative-fuel-system supplier associated with Volvo Cars. By April 2013, Cummins was shipping large natural-gas engines using Westport-developed technology to U.S. truck manufacturers. This development coincided with growing interest among American trucking companies in converting portions of their fleets to natural gas and with expansion of the U.S. natural-gas distribution network. Westport’s business consequently combined proprietary combustion and injection technology with joint ventures, licensing or supply relationships, engine integration, fuel-storage systems, and component manufacturing. The supplied reference material does not provide enough information to establish the company’s later corporate structure, present brand status, or current ownership.
- 2013
Large natural-gas engines ship to U.S. truck manufacturers
[1]Cummins began shipping large natural-gas engines using Westport technology to U.S. truck manufacturers.
- 2011
Emer and AFV are acquired
[1]The company expanded its fuel-system, components, bi-fuel engine, and alternative-fuel capabilities through the acquisitions of Emer and AFV.
- 2010
OMVL acquisition expands light-duty activities
[1]Westport acquired OMVL and its interest in Juniper Engines, which became a wholly owned light-duty subsidiary.
- 2008
Weichai Westport is formed and Nasdaq trading begins
[1]Westport formed a joint venture with Weichai Power and Hong Kong Peterson and began trading on Nasdaq under WPRT.
- 2006
Heavy-duty LNG system is launched
[1]Westport launched a heavy-duty engine and LNG fuel-system offering based initially on the Cummins ISX platform.
- 2005
BTIC Westport cooperation begins
[1]Westport and Beijing Tianhai Industry began a relationship that led to a joint venture for transportation natural-gas tanks.
- 2001
Cummins Westport is established
[1]Westport and Cummins formed a joint venture for medium-duty natural-gas vehicle engines.
- 1995
Westport Innovations is founded
[1]Philip Hill and David Demers founded Westport Innovations Inc. to commercialize high-pressure direct injection and related alternative-fuel technologies.
- 1994
Philip Hill meets David Demers
[1]Hill met Demers through UBC’s University-Industry Liaison Office, helping connect the research program with its later commercial development.
- 1980
University of British Columbia research begins
[1]Philip Hill and colleagues began investigating natural-gas combustion in diesel engines, with emphasis on emissions reduction and preservation of diesel-engine characteristics.
Products and positioning
A specialist developer and commercialization partner for low-emission alternative-fuel engines and fuel systems, with particular strength in natural-gas technology for commercial vehicles and industrial applications.
Engine combustion and injection technology
HPDI natural-gas technology
Westport’s best-known technology used a small diesel pilot injection to initiate combustion, followed by high-pressure direct injection of natural gas. The approach was designed to retain important characteristics of diesel engines while enabling operation on natural gas and reducing selected pollutants. It was developed for heavy-duty and other commercial applications and could be adapted to engine platforms supplied by major manufacturers.
Commercial vehicle powertrain systems · 2006
Heavy-duty LNG engine and fuel systems
Introduced in 2006, this offering combined a heavy-duty engine application with liquefied-natural-gas fuel-system equipment. The initial implementation was based on the 15-litre Cummins ISX engine and was intended for trucking and other heavy-duty uses where LNG storage and natural-gas range were relevant.
Medium-duty vehicle engines · 2001
Cummins Westport natural-gas engines
Produced through the Cummins Westport joint venture, these engines covered medium-duty applications from roughly 150 horsepower to more than 400 horsepower. They were designed for integration into original-equipment vehicle platforms and used compressed or other forms of natural gas as a lower-emission alternative to conventional fuels.
Light-duty automotive and industrial systems · 2010
Westport Light Duty systems
Following the OMVL acquisition and the consolidation of Juniper Engines, Westport Light Duty offered natural-gas and liquefied-petroleum-gas engines and fuel systems for light-duty automotive and industrial original-equipment customers. The portfolio included systems for vehicles and other smaller-engine applications.
Alternative-fuel storage · 2005
Natural-gas tanks and storage systems
Through its relationship with Beijing Tianhai Industry and the resulting BTIC Westport venture, Westport participated in the development and marketing of natural-gas tanks intended for transportation applications.
Fuel-system components · 2011
Alternative-fuel components and bi-fuel systems
The acquisitions of Emer and AFV expanded Westport’s capabilities in fuel-system components, bi-fuel engines, and alternative-fuel systems. These capabilities supported vehicle and industrial applications, including systems associated with Volvo Cars and other original-equipment platforms.
Brand decisions
2011
Acquire Emer and AFVM&ABackground
Westport aimed to strengthen its component manufacturing and European alternative-fuel capabilities.
Action taken
The company acquired Emer and AFV.
Aftermath
The acquisitions expanded its portfolio of fuel-system components, bi-fuel engines, and alternative-fuel systems.
2010
Acquire OMVL and consolidate Juniper EnginesM&ABackground
Westport sought to extend beyond heavy-duty natural-gas systems into light-duty vehicle and industrial applications.
Action taken
Westport acquired OMVL and OMVL’s 51 percent interest in Juniper Engines, making Juniper wholly owned and rebranding the operation as Westport Light Duty.
Aftermath
The company added natural-gas and LPG engine and fuel-system offerings for light-duty original-equipment customers.
2008
Expand through Chinese partnerships and public listingStrategyBackground
China represented a significant market for heavy-duty engines, transportation equipment, and alternative-fuel applications.
Action taken
Westport formed Weichai Westport with Weichai Power and Hong Kong Peterson and began trading on Nasdaq under WPRT while maintaining its Toronto listing.
Aftermath
The company broadened its geographic and industrial reach across vehicle, power-generation, and shipping applications.
2001
Create Cummins WestportM&ABackground
Westport needed an industrial route to commercialize natural-gas engines at scale and access established engine and vehicle channels.
Action taken
Westport and Cummins formed a joint venture focused on medium-duty natural-gas vehicle engines.
Aftermath
The venture became a central route for supplying natural-gas engines to original-equipment vehicle markets.
1995
Commercialize HPDI technologyStrategyBackground
University-based research had demonstrated a method for using natural gas in diesel-derived engines while seeking to preserve diesel-like operating characteristics.
Action taken
Philip Hill and David Demers founded Westport Innovations to develop and commercialize the technology.
Aftermath
The company subsequently built its business around alternative-fuel engines, injection systems, fuel storage, and partnerships with major engine and vehicle manufacturers.
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