San Diego Beats New York and Silicon Valley in U.S. Innovation Ranking

San Diego has more research and development and life sciences space than any other U.S. city, and that inventory helped make it the country's top innovation hub in a new ranking from Hubble. The city had more than 17.5 million square feet of R&D and life sciences space completed or under construction as of July 2026, the largest total among the 409 cities Hubble studied. The ranking shows how closely innovation tracks research real estate. Cambridge, Massachusetts, which has the second-largest inventory, finished seventh, and San Jose, with 16.2 million square feet, ranked third.

New York placed second, ahead of San Jose, San Francisco and Santa Clara, so California took four of the top five spots. Hubble scored cities on 12 measures covering innovation output, STEM talent and the resources available to researchers and businesses. Output measures, including patents and federally funded research projects, carried the most weight.

San Diego Leads on Space and Output

San Diego's first-place finish rests on more than square footage. Businesses in the city received funding for 669 projects through the federal Small Business Innovation Research and Small Business Technology Transfer programs from 2021 through 2025, the most in the study. The city also ranked third for patents, with 23,470 awarded over the same period. Hubble credited San Diego's base of life sciences and defense startups for its strong showing.

Cambridge Holds Its Ground as Lab Demand Cools

Cambridge had 16.3 million square feet of R&D and life sciences space completed or under construction. Neighboring Boston ranked 15th with 12.8 million square feet, which gives the two cities more than 29 million square feet combined. Lab demand in Cambridge has softened from earlier in the decade, Hubble noted. Even so, AstraZeneca and Biogen have committed to new operations in Kendall Square.

New York and San Jose Win on Different Measures

New York's strengths look different from San Diego's. The city had 26 research institutions and 439 coworking locations, the most in the study on both counts. It also had the strongest STEM employment growth among the top 20 cities, at 40.8% between 2019 and 2024. San Jose led all cities in patents, with more than 27,000 awarded from 2021 through 2025, and paired that output with its 16.2 million square feet of research space.

Austin and Houston Put Texas in the Top 10

Two Texas cities also made the top 10. Austin ranked sixth, with 504 federally funded small-business research projects over five years. Houston ranked ninth and had 162 coworking locations, second only to New York. Hubble named NASA, the Texas Medical Center and local universities among the institutions behind Houston's research base.