The 24 tech companies losing top talent at an astonishing rate

There are a ton of opportunities in the world of tech.

But not all tech companies are created equal when it comes to retaining top talent.

Job site Paysa recently released a report breaking down which tech companies were able to recruit and retain the best employees from April 2016 to April 2017 - and which struggled to keep the best employees on board.

Paysa tracks employee movements with its CompanyRank machine learning technology, which analyzes nearly 7.45 million points of data including résumés, job postings, and social activity across the past 15 years from 198,000 companies.

An employer's CompanyRank score improves whenever someone joins the company from another top-ranked company and declines as employees leave and the company repopulates with talent from lower-ranked companies.

Here are the 25 companies that saw their rankings slide the most drastically this year: