U.S. companies are taking a stand in these politically chaotic times.

So far, 127 technology firms are firing back at President Donald Trump's travel ban affecting immigrants and refugees from seven Muslim-majority countries.

The movement was led by nearly 100 Silicon Valley companies who filed a legal brief on Sunday to oppose the highly controversial executive order, arguing that it is unconstitutional and "inflicts significant harm on American business, innovation, and growth." Apple, Facebook, Google, Microsoft, Uber, Reddit, Netflix and Dropbox were among the 97 companies that initially signed on to support Washington state's lawsuit against Trump's order.

That list got substantially larger late Monday afternoon, when Tesla, SpaceX and 29 other tech firms joined the brief.

Tesla and SpaceX were notably absent on the original list of signatories. CEO Elon Musk, who happens to sit on Trump's business advisory council, previously said he would use his position to "express our objections to the recent executive order on immigration."

But as a Tesla spokesperson told the Verge, "as soon as we saw the brief this morning, we insisted on being added."

The suit is being heard in the ninth circuit federal court in San Francisco, California and has already succeeded in temporarily halting the enforcement of the executive order.

Many other companies are making real efforts to be socially responsible. The outdoor industry as a whole has taken a stand against Utah state's and the federal government's proposals to shed public lands.

In an open letter to Trump and Congress, more than 100 outdoor industry leaders led by REI have called upon elected officials to protect public lands and the integrity of the outdoor recreation industry, which powers $646 billion in gross national product.

Outdoor clothing big-hitter Patagonia also announced on Tuesday it will not participate in Utah's Outdoor Retailer shows after Gov. Gary Herbert signed a resolution on Friday urging the Trump administration to repeal the newly named Bears Ears National Monument.

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