In less than a month since being sworn in as the 45th President of the United States, Donald Trump has struck an emotional chord with tech companies, generating an unparalleled unifying force of opposition. The Trump administration\u2019s executive order banning all people from seven predominantly Muslim countries from the entering the United States has created a rift between political and business interests, and one that many technology leaders consider a threat to their very existence.\nA group of 127 technology companies last week filed an official friend-of-the-court brief in the lawsuits opposing the administration\u2019s executive order in Minnesota and Washington. Apple, Facebook, Google, LinkedIn, Microsoft, Snap and Twitter are all on board, but there are some conspicuous absences. Enterprise leaders IBM and Oracle haven\u2019t joined the effort and all of the major telecom and cable providers have held out thus far as well. Amazon was asked not to join the filing because it\u2019s a witness in the original lawsuit, according to Mashable.\nImmigration is core to tech innovation\n\u201cImmigrants make many of the nation\u2019s greatest discoveries, and create some of the country\u2019s most innovative and iconic companies,\u201d the companies wrote in the filing, which makes an economic, moral and legal argument for how the executive order violates the Constitution. \u201cImmigrants are among our leading entrepreneurs, politicians, artists and philanthropists. The experience and energy of people who come to our country to seek a better life for themselves and their children -- to pursue the American Dream -- are woven throughout the social, political and economic fabric of the nation.\u201d\n[ Related: Why Silicon Valley needs to unite against Muslim ban ]\nThe amicus brief came after a week of protests around the country and public outcries from technology\u2019s biggest stars including Facebook CEO Mark Zuckerberg, Apple CEO Tim Cook, Google CEO Sundar Pichai and Google co-founder Sergey Brin. Other members of tech\u2019s elite responded by matching donations to the American Civil Liberties Union. Starbucks Chairman and CEO Howard Schultz pledged to hire 10,000 refugees.\nTechnology companies have simply never taken such a public and unified stance against a U.S. government policy in the courts. In 2014, almost 150 companies sent a letter to the FCC in support of net neutrality rules. More than 20 tech leaders tried to revive efforts for immigration reform in 2013 by creating FWD.us and some technology companies issued public statements supporting Apple in its struggle with the FBI last year involving an iPhone use by a suspected terrorist in San Bernardino, Calif.\nTechnology leaders are no doubt hoping for better results this time around. Previous galvanizing moments for tech have largely failed. The FBI was eventually able to break that iPhone\u2019s encryption using a third-party tool, FWD.us has mostly sputtered and net neutrality rules are in serious jeopardy under the Trump administration.\nLegal filing is a potent form of protest against immigration ban\nThe legal brief, which was initially filed on Super Bowl Sunday and amended with more signatures the following day, is the tech industry\u2019s \u201cprotest to banning talent from countries where untapped, highly desired, affordable expertise is blossoming,\u201d says Brian Solis, principal analyst at Altimeter Group. \u201cMr. Trump\u2019s incredibly ignorant ban on human beings who reside in different parts of the world impacts scale and expansion of innovative companies not just in Silicon Valley, but in every technology hotspot around the United States of America.\u201d\n[ Related: How social media is shaping the 2016 presidential election]\nMany of today\u2019s largest tech firms were created by immigrants or offspring of immigrants, so immigration is a part of the DNA of many of these organizations, according to Vincent Raynauld, assistant professor in communication studies at Emerson College in Boston. \u201cOne of the reasons why the United States has been able to stay ahead of the game when it comes to technology is immigration,\u201d he says.\n\u201cA lot of tech companies are not necessarily in agreement with Trump\u2019s policies, but I think immigration hit them to the core because\u2026 their ability to attract a qualified and competent workforce relies heavily on immigration,\u201d Raynauld says. \u201cIt was the perfect issue to get in the arena and try to push back against some of Trump\u2019s policies.\u201d\nThe history of many tech companies, operating dimensions of their organization and the public perception of their businesses are all key considerations to understand why companies support, oppose or remain neutral on the immigration executive order, according to Raynauld. Highly-skilled business sectors like technology are heavily dependent on immigration, but some members of the corporate world are less dependent on talent from other countries, he says.\n\u201cThese leading technology companies had no choice but to voice opposition as a matter of future-proofing,\u201d Solis says. \u201cTalent in the U.S. is already thin and that means companies bid against one another for limited resources. The underlying move here is one that\u2019s bigger than work. You have the world\u2019s leading technology companies that are pushing business and society forward, in some cases, faster than some can handle. This very brief symbolizes the great American divide between those competing or trying to compete for the future and those who believe the ship toward innovation is moving too fast and they would like to get off at the next port.\u201d\nTrump and public opinion force tech companies to respond\nTrump has effectively dragged many technology companies into the political arena at a time when much of their customer base is expecting tech leaders to be increasingly political, according to Raynauld. \u201cI haven\u2019t seen tech companies get so riled up. There\u2019s been some rumblings in previous administrations, but it\u2019s such a unifying response to a policy that\u2019s been introduced by a president that\u2019s only two-and-a-half weeks in,\u201d he says. \u201cThe expectations are changing because of this new generation of citizens.\u201d\n [ Related: Twitter\u2019s impact on 2016 presidential election is unmistakable ]\nLeaders in Silicon Valley and elsewhere are taking a stand against a president they don\u2019t support and creating the first organized movement to fight him and his controversial ambitions, Solis says. \u201cIt\u2019s an unprecedented union of influential companies acting selfishly and progressively at the same time. They stand for humanity, morals and dreams beyond borders. Innovation knows no party lines. It simply hungers for progress, change, and even disruption.\u201d\nWhy enterprise companies are holding out\nThe holdouts among giants in the enterprise like IBM and Oracle also highlight the different pressures facing technology companies that largely serve businesses instead of consumers, according to Jan Dawson, chief analyst and founder of tech research firm Jackdaw. \u201ctheir customers are big, often relatively conservative businesses themselves, rather than being individual consumers with strong views and opinions on subjects like immigration,\u201d he says. \u201cThe big traditional enterprise companies also often don\u2019t have the same corporate culture of fostering quirkiness, a sense of rebelliousness and disruption.\u201d Dawson notes that smaller companies like Box are taking stand and have come out strongly against the immigration ban.\n\u201cIt\u2019s also worth noting that the perceived risks may be higher for these companies \u2013 the loss of any single consumer over a stance on immigration isn\u2019t going to hurt any company, but the loss of business from a Fortune 50 client would be a serious blow to any big enterprise provider,\u201d he says. \u201cVery few people are paying attention to how the big enterprise companies are responding to all this, and so the price to be paid for remaining silent or commenting in very narrow ways relating to business rather than in moral terms is minimal, while the downside of speaking out forcefully is probably more significant.\u201d\n [ Relate: Facebook wants to sway your purchases but not your politics ]\nAlthough tech luminaries rarely come together on hot-button issues, Solis believes there will be many more actions taken at the federal level that will energize Silicon Valley and innovation hubs around the world to \u201cwrestle or downright undermine\u201d Trump and his administration\u2019s policies. \u201cWe haven\u2019t seen the last of egregious acts against humanity and the Constitution,\u201d he says.