On 31
st Jan 2017 , two tech companies - Amazon and Expedia - filed a lawsuit in a federal court in Seattle against the Trump administration.
They were arguing that the order will hurt their businesses.
The filings represent an escalation of technology industry's efforts to push back on the order signed by Trump.
The lawsuit asked the court to declare key parts of the executive order unconstitutional.
Expedia argued that the executive order hurt its ability to recruit employees from overseas.
It also said it could undermine the core of the company's business as an internet travel company.
About thousand Expedia customers with passports from one of the seven countries, have made travel plans that involve flights to, from or through the US.
Dara Khosrowshahi, Expedia's chief executive, was born in Iran and fled the country with his parents after the Iranian revolution in 1978.
Amazon said it was aware of 49 employees out of its US work force of 180,000 who are from one of the countries identified in the order, nearly all of whom hold citizenship in another country.
Seven job candidates, all of them originally from Iran but citizens of other countries, have received employment offers from Amazon.
The company is considering jobs for the candidates in other countries.
In an email to employees, CEO Jeff Bezos, said the firm had expressed its opposition to the order to administration officials and congressional leaders.
He said the firm was exploring "other legal options as well."
At Google's headquarters in Mountain View, California, hundreds of employees crowded into a quad near the main cafeteria to protest the order.
