Co-founded an affiliate for one of South America's largest wine companies, currently with sales of more than USD$20 million and one of the top six in Chile as well as established distribution channels and helped create a banking lending model for small business and high net worth individuals that boosted assets to over US$300 million, decreased defaults by borrowers, and provided an international model for the small business development segment of a major bank.

Mr. Leavenworth co-founded the corporate cross-cultural training and language services firm Global Arena LLC, and in four years turned it into the largest firm of its kind Philadelphia. Mr. Leavenworth has also worked as an international business consultant, as when he advised an American private equity group in its interest to obtain an iron mine with corresponding operations valued at USD$75 million and production capacity of over 1 million tons of iron ore per month.

Leavenworth was International Commercial Manager for a major Swiss sustainable development NGO that foments small- and medium-sized business growth model to government officials and NGOs throughout the Americas. He has worked with Chile's Ministry of Education to evaluate alternatives for a national English program in Chile. .

Recently Mr Leavenworth was appointed by the president of Chile as Honorary Consul of Chile in Philadelphia, becoming one of the youngest in Chilean diplomatic history to hold this position.