Largely thanks to technology employers like Wayfair, athenahealth and TripAdvisors, Boston recently ranked No. 2 on a list of cities for STEM professionals, or those who work in science, technology, engineering and mathematics careers. The city came in second only to Seattle in the WalletHub study, which analyzed U.S. Census Bureau data of the country’s 100 largest metropolitan areas.

Overall, Boston had a score of 71.94, ranking No. 7 for professional opportunities, first in STEM friendliness and No. 43 for quality of life. Its first-place finish for STEM friendliness is owed to major academic institutions in the area that are particularly strong in engineering studies, such as Massachusetts Institute of Technology, Harvard University, Boston College, Boston University and Tufts University.

According to Built In Boston, as of November, more than 37,500 people were employed by Boston’s 100 biggest technology companies.

The city is rumored to be a frontrunner to land Amazon’s highly coveted second headquarters, HQ2. If Boston lands the development, the number of STEM jobs in the city would skyrocket, as the ecommerce giant says the headquarters will house 50,000 high-paying jobs. Boston’s educational institutions that make the city so STEM-friendly are the exact reason many speculate that it’s a on Amazon’s shortlist.