The San Francisco Bay Area increased at a rapid pace in the first quarter, with more than 4,375 new jobs added for a 2.1% employment gain, according to the Digital Jobs Index for the first quarter of 2018 released today by executive search firm ON Partners. New York City showed a 1.8% gain and added almost 1,280 jobs. Boston’s headcount growth was slower at 1.1%, with an increase in headcount of 650 people.

ON Partners’ report looked at tech jobs in the San Francisco, New York and Boston areas.

Bay Area growth was mainly driven by the success of its largest employers, which added extensively to their payrolls. New York growth was driven by broad hiring across the software and internet sectors, with 70% of companies increasing headcount. However, Boston’s largest companies were relatively slow to add to their payrolls and the hiring scene was mixed, with only 52% of companies adding jobs while the remaining 48% either decreased headcount or remained flat.

“The bottom line is that big Bay Area companies clearly won the jobs race in Q1,” said John Barrett, partner at ON Partners. “A possible explanation for Boston’s relatively low growth in hiring is that much of the venture capital dollars are flowing into the city’s biotech sector, which is muting employment growth in software and internet companies.”

The top 10 companies showing the largest headcount gains in the Bay Area:

1. Google
2. Facebook
3. Apple
4. Amazon
5. Workday
6. Uber
7. Lyft
8. eBay
9. PayPal
10. ServiceNow

The top 10 companies showing the largest headcount gains in New York:

1. Amazon
2. WeWork
3. Google
4. Compass
5. Facebook
6. Uber
7. IBM
8. Squarespace
9. FreeWheel
10. Indeed.com

The top 10 companies showing the largest headcount gains in Boston:

1. Wayfair
2. Amazon
3. HubSpot
4. ezCater
5. EverQuote
6. Salsify
7. LogMeIn
8. Mathworks
9. Facebook
10. Intralinks

The Digital Jobs Index tracks three key areas: headcount growth among the leading 100 software and internet companies in each city; headcount growth driven by the top 10 companies (an indication of breadth and depth of hiring); and the percentage of companies that increased their headcount.