Company Timeline


Founded by NAE Member Dr. James U. Lemke with investment from John Walton, son of Sam Walton, founder of Wal-Mart. Named after Achates, Aeneas’s faithful friend in Virgil’s Latin epic poem “Aeneid” (1st century BC).


Engine testing began in company’s in-house test cell


Series A Venture Capital round led by Sequoia Capital with investments from Madrone Capital Partners, Rockport Capital Partners, and InterWest Partners Received DARPA contract to design light-weight, compact UAV engine


David Johnson, President & CEO, hired 500 hours of testing completed on engine in company test cell


Second company test cell commissioned Real-time oil control measuring system installed

Winner, Global Cleantech and Going Green Top 100 Lists

Finalist in DOE ARPA-E competition

Business Week names Achates Power, Inc. one of “25 companies to watch in Energy Tech”

Series B Venture Capital round with introduction of new investor, Triangle Peak Partners


Proprietary combustion system yields superior efficiency and emissions results compared to today’s state-of-the-art Diesel engines

Engine passes NATO 50 hour cyclic durability test

Over 1,000 hours of testing completed in company’s test facility

Additional test stand added to company’s test facility

Winner, GoingGreen Top 100 List


Surpassed more than 2,500 hours of testing in company’s test facility

Demonstrated more than a 20 percent fuel efficiency improvement compared to today’s best diesel engines and an approximately 55 percent improvement compared to today’s standard gasoline engine

Proven the engine is clean, with engine-out emissions that are compatible with current and future standards

Shown an overall reduction in engine cost, weight and complexity

Winner, GoingGreen Top 200 List


First firing of the company’s A48 opposed-piston, double crank, spur gear train engine. Company surpasses 3,600 hours of total test time

Named Red Herring 100 Americas finalist

Company founder, Dr. James Lemke, receives 100th patent

Achates Power and AVL selected to develop Next-Generation Combat Engine


Frost & Sullivan selects Achates Power for 2013 North American New Product Innovation Award in the medium- and heavy-duty commercial vehicle engine marketExceeded more than 4,500 hours of total test time

Company named first runner-up in Securing America’s Future Energy (SAFE) “Energy Security Prize”

Fairbanks Morse Engine signs joint development and licensing agreement with Achates Power to reduce emissions and fuel consumption of Fairbanks Morse proprietary diesel and dual-fuel opposed-piston engines

Achates Power receives CONNECT Most Innovative New Product award in the sustainability category


Achates Power engine surpasses 5,000 hours of dynamometer testing.Company releases results of light-duty diesel engine study versus a next-generation diesel engine benchmark; demonstrates 30 percent fuel economy improvement and potential to meet Tier 3/LEV III emissions standards


Achates Power is awarded a $14 million project to develop a Single Cylinder Advanced Combat Engine Technology Demonstrator for the U.S. Army Tank Automotive Research, Development and Engineering Center (TARDEC). With this new contract, Achates has six concurrent customers whose contracts encompass five different engine applications: passenger vehicle, light commercial vehicle, heavy commercial vehicle, military and marine/stationary power.

To satisfy the demands of new customer contracts and rapid growth, Achates Power opened its midwest operations in metro Detroit. The new customer application engineering facility is based in Farmington Hills, Mich.

Achates Power receives a $9 million award from the U.S. Department of Energy’s Advanced Research Projects Agency-Energy (ARPA-E) to develop an Opposed-Piston Gasoline Compression Ignition Engine (OPGCI), with partners Argonne National Laboratory and Delphi Automotive.


Achates Power engine surpasses 7,000 hours of dynamometer testing.

John Koszewnik, chief technical officer, elected to the National Academy of Engineering (NAE). He was recognized for his efforts in improving the design, development, and production efficiency of vehicle engines.

Over 100 patents granted to Achates Power Opposed-Piston technology.