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William A Stock

William A Stock
1601 Market Street, Suite 2600
+1 215 825 8607
+1 215 825 8699


Who's Who Legal Corporate Immigration

William A Stock (Bill) has been described by peers as “brilliant” and an “impressive strategist on immigration issues", and has practised immigration law exclusively for over 25 years. Known for creating solutions and moving the law forward, he is a founding partner of Klasko Immigration Law Partners, LLP, where he leads the corporate immigration team.

Bill’s practice includes representing businesses in industries from finance to healthcare to telecommunications, as well as healthcare organisations and universities, in business immigration matters before US Citizenship and Immigration Services and the US Department of Labor, and at US consulates. His practice also includes representing entrepreneurs, researchers and physicians in self-sponsored immigration matters, and he represents companies and individuals in immigration-related administrative and federal court litigation, including defence of enforcement actions and obtaining federal court review of adverse agency actions. Bill has also represented employers before the immigration agencies and the Department of Labor as a member of several liaison committees; provided training to immigration judges of the Department of Justice; and advocated for immigration reforms in Congress.

Bill served as the 2016–2017 president of the American Immigration Lawyers Association (AILA), the 14,500-member national organisation of immigration lawyers. 

Bill is the co-author of the J Visa Guidebook from Lexis Publishing, along with many other articles for the immigration bar, general legal audiences and the human resources community. 

Bill received his law degree from the University of Minnesota (JD, magna cum laude, 1993), where he was awarded the Order of the Coif as a graduate in the top 10 per cent of the class.

WWL says: Sources dub William Stock “a leader in immigration law at a national level” who “always has a good answer”.

This biography is an extract from Who's Who Legal: Corporate Immigration which can be purchased from our Shop.

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Nominees have been selected based upon comprehensive, independent survey work with both general counsel and private practice lawyers worldwide. Only specialists who have met independent international research criteria are listed.

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Law Business Research Ltd

87 Lancaster Road, London
W11 1QQ, UK