Additionally Campbell owned a business-consulting firm that specialized in business strategy with clients from all sized companies, from all regions of the country, and from a wide variety of industries.

He was named by Roll Call Newspaper as one of the 50 most influential staffers on Capitol Hill[7] seven years running and recognized as a bipartisan problem-solver.

Campbell oversaw the Deputy Assistant Secretaries for Financial Institutions Policy and Small Business, Community Development and Affordable Housing, and Cyber Security in addition to a staff of 300.

[10] Additionally Campbell is a director of tZERO,[11] Intrado,[12] WEconnect Health Management, Bitt and is a Board Advisor to CrossRiver Bank.

Campbell regularly appears on world-wide economically geared media outlets and on American cable news programs.