Three Connecticut companies, including two from Fairfield County, have been named to Deloitte’s 2025 North American Technology Fast 500 list.
The accounting and consulting firm, which made the announcement Nov. 20, compiles the annual ranking of the fastest-growing North American companies in the technology, media, telecommunications, life sciences, fintech, and energy tech sectors. This year energy-as-a-service provider Budderfly of Shelton, pharmaceutical manufacturer MannKind of Danbury and biotech company Arvinas Inc. of New Haven made the list.
Now in its 31st year, Technology Fast 500 awardees are selected based on percentage fiscal year revenue growth from 2021-2024. All three are repeat winners, with Budderfly and Arvinas having won three years in a row.
Budderfly was ranked 183rd with a three-year revenue growth of 445%, Arvinas was 275 with revenue growth of 391% and MannKind was 275th with revenue growth of 278%.
“Each of the Connecticut winners of this year’s Deloitte Technology Fast 500 program have been named to this list at least three or four times now, with revenue growth rates ranging from 278% to 445%,” said Heather Ziegler, Stamford managing partner, Deloitte LLP. “I couldn’t be more pleased to congratulate them on their continued entrepreneurial success and for their influence in the broader Connecticut community.”
Overall, this year’s Technology Fast 500 companies achieved revenue growth ranging from 122% to 29,738% over the three-year time frame, with an average growth rate of 1,079%.
“This year’s rankings highlight both enduring leadership and breakthrough growth,” said Wolfe Tone, US Deloitte private & emerging client portfolio leader. “More than half of the winners are prior honorees, yet the majority of the top ten are first-time entrants — demonstrating the staying power of established leaders alongside the accelerating growth of new innovators across key sectors.”
“As in previous years, private companies continue to dominate, underscoring the agility that private enterprises bring to competitive markets, enabling the exceptional triple and quadruple digit growth reflected in these rankings.”
