All three companies have headquarters in Connecticut, and all three had made the list in the past two years, the report said. The list did not rank the companies.
The 100 companies on the list are billed as the "heart of innovation," at least according to Thomson Reuter's metrics, largely based on patent activity and success.
Of the Connecticut firms, Fairfield-based GE landed first in patent-making, with 8,644 patents from 2010 to 2012, the period studied by Thomson Reuters. Norwalk-based Xerox followed with 3,236 in the same period, and Hartford-based UTC posted 2,169 patents.
The innovative firms, in total, outperformed the S&P 500 index, generated $4.5 trillion in revenue, and added more than 260,000 new jobs in the past year. They also invested a collective $223 billion in research last year.
Forty-six of the companies on the list were from North America, with Asian firms close behind. at 32. The semiconductor and electronic component industries led the sectors with 23 of the listed companies, followed by the computer hardware industry and the automotive industry.
David Brown, managing director of Thomson Reuters intellectual property division, said that the "study provides further evidence that innovative organizations — those that secure global patent protection for their intellectual property, continue to push the envelope with new technologies and invest more in R&D — are those that outperform the S&P 500 on virtually every measure of business success."