As principal of Thornton Financial Consulting, Thornton provides expert witness services in corporate finance. His practice generally offers corporate finance expert witness testimony in utility rate cases, quantifying and handicapping financial outcomes for hedge funds, and consulting on utility mergers and acquisitions. Thornton is twice a graduate of the London School of Economics and Political Science, earning his Master of Science, and Graduate Diploma. He serves on the board of the Rotary Club of Scottsdale and is a Paul Harris Fellow. He also serves on the vestry of St. Barnabas Episcopal church and the Episcopal Diocese of Arizona Commission on Ministry.