twitter-bird-white-on-blueTwitter’s IPO filing was made public today and it noted that the company now employs 2,000 worldwide.

According to the SEC filing, that’s up approximately 90 percent from June 30, 2012 — an increase of over 900 full-time employees. The social network said it expects to continue hiring and make acquisitions to add talent.

It noted strong competition for employees and particularly engineers, designers and product managers.

“To attract highly skilled personnel, we have had to offer, and believe we will need to continue to offer, highly competitive compensation packages,” Twitter wrote. “In addition, as we have grown, we have significantly expanded our operating lease commitments.”

That’s certainly true for its Seattle cohort, which recently moved from its temporary old digs near Seattle’s historic Pike Place Market to a 16,000 square-foot space at the Century Square building in downtown Seattle after about one year in the Emerald City.

Facebook, social media’s other titan, currently employs 5,299, growing from 3,976 employees in 2012 — a 33 percent growth compared with 90 percent for Twitter. 

Of course, both companies are a far cry from the other big tech titans, as the chart below shows:

amazon-employeeschart

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