Klasko Immigration Law Partners is proud to announce its recognition in the 2025 edition of Chambers and PartnersUSA GuideandGlobal Guide, one of the legal industry’s most prestigious ranking publications.
The firm has once again secured a Band 2 national ranking for Immigration Law in the United States, Band 2 for Immigration: Business globally, and maintained its Band 1 ranking in Pennsylvania, affirming its leadership in business immigration services across the country. In addition, the firm’s Washington, D.C. office has made a notable debut in the rankings, signaling the continued growth of Klasko Immigration’s national reach and influence. According to Chambers, the firm“appears to be expanding its geographical reach, with its new D.C. office showing considerable potential. [Klasko Immigration] remains a market leader in Pennsylvania, with its team in that jurisdiction bolstered by the profiles of longstanding specialists Ronald Klasko and William Stock.”
National Recognition for Firm Founders
Chairman, Ronald Klasko has been honored for the 13th consecutive year and is ranked as a Senior Statesperson in Immigration Law nationwide. Chambers calls him“an expert in all facets of business immigration law,”recognizing his EB-5 expertise, litigation success, and exceptional industry reputation.
“We are honored that Chambers continues to recognize the depth and impact of our team’s work,” said Ron. “Our continued leadership in this field is only possible because of the trust our clients place in us and the talent and commitment of our attorneys and teams.”
William (Bill) Stock, managing partner, is also ranked nationwide as an Eminent Practitioner, and is the only Klasko Immigration attorney recognized in the 2025 Chambers Global Guide. Celebrated for 13 consecutive years by Chambers, he is lauded for his “encyclopedic knowledge” and “prominent” standing in the field.
“We’ve built our practice on anticipating the evolving needs of employers and individuals navigating U.S. immigration and now globally,” said Bill. “Recognition from Chambers reflects not just our past successes, but our continued innovation and leadership across sectors like technology, healthcare, higher education, and global mobility.”
Regional Excellence in Pennsylvania and Washington, D.C.
Partner and co-chair of the firm’s Corporate Immigration Practice, Elise Fialkowski earned a Band 2 individual ranking in Pennsylvania for the third year in a row— reflecting her continued excellence and recognition in the field. Chambers commends her as an attorney who“handles the full range of employment-based immigration matters, with a notable focus on the startup space.” Market commentators also applaud Elise for her insight and proactive approach with one respondent saying,“She has a wealth of knowledge and experience in immigration law,”while another added, “She is a brilliant attorney who finds creative ways to address immigration issues, with the aim of eliminating or mitigating risks for her client.”
“It’s a privilege to support innovative companies in achieving their goals through smart immigration strategy,” said Elise Fialkowski. “To be recognized for that work is incredibly gratifying – especially alongside such an exceptional team.”
In Washington, D.C., Timothy D’Arduini, Partner-in-Charge of the firm’s D.C. office, was recognized with his third Chambers ranking—highlighting his continued impact in the field of immigration law. His practice serves a wide range of clients, from multinational corporate clients to individual professionals. Chambers describes him as “brilliant and always active in the market.”
“This ranking is not just a personal milestone, but a reflection of our team’s growing presence and trusted service in Washington, D.C.,” said Tim. “I’m proud of what we’re building – and grateful to our team for their commitment and our clients for their partnership.”
Reinforcing its long-standing reputation, the firm once again ranked Band 1, the highest tier, in Pennsylvania.