In January, Facebook was the only tech company to leave the US.
It was the first major company to announce it would leave the country, and has since announced plans to expand into more markets.
Twitter is a close second, with plans to open a second office in the US in the coming months.
And Microsoft is also reportedly considering a move, although the timing is unclear.
“We are committed to providing our employees with the highest level of professional and emotional support,” a spokesperson told The Verge in an email.
“Our goal is to have an inclusive, open and respectful work environment.
As a company, we will continue to focus on the needs of our employees and their families.”
A number of tech companies are also moving to the US, including Google, Amazon, and Netflix.
The move to the States is especially important for tech companies that are headquartered in Silicon Valley, which is where Facebook is based.
“The United States has one of the most vibrant startup ecosystems in the world,” Facebook said in a statement.
“These investments will enable us to better build the world’s most popular social network, while providing our people and employees with a greater opportunity to achieve their goals.”
In December, Amazon said it was moving its headquarters to Seattle and adding more than 4,000 new jobs.
Twitter, meanwhile, announced plans for its first new headquarters in more than three years.
“Seattle is the home of our largest employee base and we’re grateful to Amazon for the opportunity to partner with them to create a world-class technology company,” the company said in an announcement.