[1] As Principal at Trilogy Advisors LLC since 2005, Sitilides manages a government affairs portfolio specializing in regulatory reform.

He was a government affairs strategist to AKT Development Corporation, a major land development corporation in Sacramento, California, where he managed Congressional & Executive branch agency lobbying & communications strategies on federal wetlands, endangered species, and property rights issues from 1993 to 1997.

In 1998, he launched the Western Policy Center, a Washington, D.C. international relations organization researching and forecasting U.S., NATO & EU political, commercial and security issues in southeastern Europe.

After seven years as executive director, overseeing strategic planning, policy analysis, political and corporate communications, and financial management, he negotiated its 2004 merger with the Woodrow Wilson International Center for Scholars to establish the Southeast Europe Project, where he served as chairman, board of advisors from 2005 to 2011.

He also served as an alternate member of the Commerce Department's U.S.-Greece Initiative for Technology Cooperation in the Balkans, under President George W. Bush.