New Zealand-founded biotech company LanzaTech has been included in a Forbes Top 100 list of America's most promising privately held companies.
The clean energy and renewable chemicals technology company was ranked 48th and was the only clean energy or bioscience firm in the top 50.
Headquartered in Illinois but with its scientific base in Auckland, LanzaTech was founded in early 2005 and raised funding through grants and New Zealand-based angel investors.
US business magazine Forbes said it compiled the Top 100 most promising list based on variables including growth, quality of management, team and investors, margins, market size and key partnerships.
Alongside its ranking, LanzaTech was described as having 125 employees and revenue of $4 million in the year ended December 31, 2012.