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Irwin W. Aronson
Alternate image for Irwin W. Aronson

Irwin W. Aronson

Partner

iaronson@wwdlaw.com
717.221.1000

Harrisburg

212 Locust Street, Suite 301 Harrisburg, PA 17101

  • 17 Willig, Williams & Davidson Attorneys Named Among 2025 ‘Best Lawyers in America,’ Deborah Willig and Irwin Aronson Named ‘Lawyer of the Year’
  • 16 Willig, Williams & Davidson Attorneys Named Among 2024 ‘Best Lawyers in America’
  • 18 Willig, Williams & Davidson Attorneys Named 2023 PA Super Lawyers & Rising Stars
  • 13 Willig, Williams & Davidson Attorneys Named Among 2022 ‘Best Lawyers in America,’ Two Named ‘Lawyers of the Year’ in Employee Benefits, Union Law
  • 17 Willig, Williams & Davidson Attorneys Named 2021 PA Super Lawyers, Managing Partner Named Among Top Attorneys in State
  • 15 Willig, Williams & Davidson Attorneys Named Among 2021 ‘Best Lawyers in America,’ Nancy B.G. Lassen Named ‘Lawyer of the Year’ in Philadelphia Labor Law
  • 16 Willig, Williams & Davidson Attorneys Named 2020 PA Super Lawyers and Rising Stars
  • Partner Irwin Aronson Discusses Benefits of Entering the Building Trades on Building PA Podcast
  • Willig, Williams & Davidson Lawyers Named Among 2020 ‘Best Lawyers in America’
  • Willig, Williams & Davidson Partner Serves as Keynote Speaker at Union Conference
  • Willig, Williams & Davidson Attorney Irwin Aronson Presents at AFL-CIO
  • 14 Willig, Williams & Davidson Attorneys Named 2019 PA Super Lawyers and Rising Stars
  • Willig, Williams & Davidson Attorney Concludes Service as Chair of Pennsylvania IOLTA Board
  • 15 Willig, Williams & Davidson Attorneys Named Among 2019 ‘Best Lawyers in America’
  • 14 Willig, Williams & Davidson Attorneys Named 2018 PA Super Lawyers and Rising Stars
  • 14 Willig, Williams & Davidson Attorneys Named Among 2018 ‘Best Lawyers in America’
  • 13 Willig, Williams & Davidson Attorneys Named 2017 PA Super Lawyers and Rising Stars
  • 12 Willig, Williams & Davidson Attorneys Named Among 2017 ‘Best Lawyers in America’
  • Attorney Irwin W. Aronson Speaks with the Rick Smith Show About Pennsylvania’s Unemployment Compensation Insurance System
  • 12 Willig, Williams & Davidson Attorneys Named 2016 PA Super Lawyers and Rising Stars
  • Willig, Williams & Davidson Partner Irwin W. Aronson to Chair IOLTA Board
  • Attorney Irwin Aronson Speaks with the Rick Smith Show About School Districts and State Legislative Budgets
  • 12 Willig, Williams & Davidson Attorneys Named to 2016 ‘Best Lawyers in America’
  • 11 Willig, Williams & Davidson Attorneys Named 2015 PA Super Lawyers and Rising Stars
  • Irwin Aronson Discusses Waste, Fraud of Abuse of Cyber Charter Schools with Rick Smith Show
  • Pennsylvania to Conduct Historic Judicial Elections in 2015
  • Partner Irwin W. Aronson Helps PAHRA Calibrate its ‘Moral Compass’
  • 17 Willig, Williams & Davidson Attorneys Named Among 2025 ‘Best Lawyers in America,’ Deborah Willig and Irwin Aronson Named ‘Lawyer of the Year’
  • 16 Willig, Williams & Davidson Attorneys Named Among 2024 ‘Best Lawyers in America’
  • 18 Willig, Williams & Davidson Attorneys Named 2023 PA Super Lawyers & Rising Stars
  • 13 Willig, Williams & Davidson Attorneys Named Among 2022 ‘Best Lawyers in America,’ Two Named ‘Lawyers of the Year’ in Employee Benefits, Union Law
  • 17 Willig, Williams & Davidson Attorneys Named 2021 PA Super Lawyers, Managing Partner Named Among Top Attorneys in State
  • American Rescue Plan Extends Unemployment Insurance Benefits
  • 15 Willig, Williams & Davidson Attorneys Named Among 2021 ‘Best Lawyers in America,’ Nancy B.G. Lassen Named ‘Lawyer of the Year’ in Philadelphia Labor Law
  • Pennsylvania Unemployment Insurance for Employees Working Short-Time
  • 16 Willig, Williams & Davidson Attorneys Named 2020 PA Super Lawyers and Rising Stars
  • Partner Irwin Aronson Discusses Benefits of Entering the Building Trades on Building PA Podcast
  • Unemployment Insurance in the Wake of COVID-19
  • Willig, Williams & Davidson Lawyers Named Among 2020 ‘Best Lawyers in America’
  • Willig, Williams & Davidson Partner Serves as Keynote Speaker at Union Conference
  • Willig, Williams & Davidson Attorney Irwin Aronson Presents at AFL-CIO
  • 14 Willig, Williams & Davidson Attorneys Named 2019 PA Super Lawyers and Rising Stars
  • Willig, Williams & Davidson Attorney Concludes Service as Chair of Pennsylvania IOLTA Board
  • 15 Willig, Williams & Davidson Attorneys Named Among 2019 ‘Best Lawyers in America’
  • 14 Willig, Williams & Davidson Attorneys Named 2018 PA Super Lawyers and Rising Stars
  • 14 Willig, Williams & Davidson Attorneys Named Among 2018 ‘Best Lawyers in America’
  • 13 Willig, Williams & Davidson Attorneys Named 2017 PA Super Lawyers and Rising Stars
  • 12 Willig, Williams & Davidson Attorneys Named Among 2017 ‘Best Lawyers in America’
  • Attorney Irwin W. Aronson Speaks with the Rick Smith Show About Pennsylvania’s Unemployment Compensation Insurance System
  • 12 Willig, Williams & Davidson Attorneys Named 2016 PA Super Lawyers and Rising Stars
  • Willig, Williams & Davidson Partner Irwin W. Aronson to Chair IOLTA Board
  • Attorney Irwin Aronson Speaks with the Rick Smith Show About School Districts and State Legislative Budgets
  • 12 Willig, Williams & Davidson Attorneys Named to 2016 ‘Best Lawyers in America’
  • 11 Willig, Williams & Davidson Attorneys Named 2015 PA Super Lawyers and Rising Stars
  • Irwin Aronson Discusses Waste, Fraud of Abuse of Cyber Charter Schools with Rick Smith Show
  • Pennsylvania to Conduct Historic Judicial Elections in 2015
  • Partner Irwin W. Aronson Helps PAHRA Calibrate its ‘Moral Compass’

Irwin Aronson is sought out for his experience in labor and employment law, employee benefit matters, governmental affairs and legislative drafting and analysis. Best known for his representation of large labor federations, Irwin is General Counsel to the Pennsylvania AFL-CIO and its local affiliated Central Labor Councils. He serves as General Counsel to the Pennsylvania State Building and Construction Trades Council and its affiliated Regional Councils as well. His practice encompasses collective bargaining negotiations, grievance and interest arbitration and litigation, and he is widely recognized as a distinguished appellate advocate in state and federal appellate courts. He also advises clients regarding employee benefit law, particularly clients in the building and construction trades with multiemployer Taft-Hartley plans. He counsels clients on administrative agency matters and Housing and Urban Development law, including with regard to high-level public-private housing and urban development matter.

Irwin regularly analyzes and drafts legislation and interacts with local, state and federal governmental bodies on legislative matters ranging from fair labor standards and unemployment and workers’ compensation, to housing and urban development, to elections and voting rights. He was instrumental in the successful litigation regarding gerrymandering of Congressional seats in Pennsylvania and in litigation challenging the Pennsylvania Voter ID law.

He is a frequent lecturer and has authored numerous articles. Irwin serves or has served as an instructor for Pennsylvania State University’s Department of Labor Studies and Employment Relations, the Union Leadership Academy, Pennsylvania State University’s Capitol College (adjunct faculty member), the Pennsylvania Bar Association and the Pennsylvania Bar Institute, among others. In 2012, Irwin was appointed by the Supreme Court of Pennsylvania to serve on its Pennsylvania Interest on Lawyers Trust Account (IOLTA) Board including three years as its Chair guiding the funding and access to civil legal services to Pennsylvania workers and, military veteran, children and others lacking the financial ability to secure legal services. As a part of that service, he changed the way civil legal services for indigent Pennsylvanians are funded as well as how law school programs serving the poor and providing practical experience to Law Students are operated.

He is also a dedicated member of his community, serving on many communal boards and committees benefiting others and co-founding the Keystone Research Center, a Pennsylvania-based public policy research institute.

WHAT INSPIRES ME ABOUT MY WORK

“My work inspires me—and I’m also inspired that our practice seeks and secures justice for working men and women at their workplaces and in their engagement with their communities and their civic life.”

AWAY FROM WORK

“I am a political junkie and a public policy wonk. Motorcycle and bicycle riding, antique auto collecting, attending theatrical and opera performances and reading biographies and novels round out my interests.”

  • Construction Law: Established the applicability of public labor and employment regulation to private construction projects funded in whole or in part with taxpayer funds.
  • Prevailing Wage: Established the right of unions to participate, as parties, in prevailing wage enforcement cases.
  • Workers Compensation: established the method of computation of benefits for workers who sustain injuries on the job after a short period of employment.
  • Voting Rights: Successful in overturning the Voter ID Law as unconstitutional.
  • Workplace Safety: Secured rail yard safety by obtaining a prohibition against the use of replacement of workers in jobs requiring the use of electronic signaling devices.
  • Payday Lending: Halted usurious interest rates on payday loans in Pennsylvania.
  • American Rescue Plan Extends Unemployment Insurance Benefits
  • 15 Willig, Williams & Davidson Attorneys Named Among 2021 ‘Best Lawyers in America,’ Nancy B.G. Lassen Named ‘Lawyer of the Year’ in Philadelphia Labor Law
  • Partner Irwin Aronson Discusses Benefits of Entering the Building Trades on Building PA Podcast
  • 16 Willig, Williams & Davidson Attorneys Named 2020 PA Super Lawyers and Rising Stars
  • Pennsylvania Unemployment Insurance for Employees Working Short-Time
  • Unemployment Insurance in the Wake of COVID-19
  • Attorney Irwin W. Aronson Speaks with the Rick Smith Show About Pennsylvania’s Unemployment Compensation Insurance System
  • Willig, Williams & Davidson Partner Serves as Keynote Speaker at Union Conference
  • 12 Willig, Williams & Davidson Attorneys Named Among 2017 ‘Best Lawyers in America’
  • 12 Willig, Williams & Davidson Attorneys Named 2016 PA Super Lawyers and Rising Stars
  • Willig, Williams & Davidson Partner Irwin W. Aronson to Chair IOLTA Board
  • 12 Willig, Williams & Davidson Attorneys Named to 2016 ‘Best Lawyers in America’
  • 11 Willig, Williams & Davidson Attorneys Named 2015 PA Super Lawyers and Rising Stars
  • 13 Willig, Williams & Davidson Attorneys Named 2017 PA Super Lawyers and Rising Stars
  • 14 Willig, Williams & Davidson Attorneys Named Among 2018 ‘Best Lawyers in America’
  • Willig, Williams & Davidson Attorney Irwin Aronson Presents at AFL-CIO
  • 14 Willig, Williams & Davidson Attorneys Named 2019 PA Super Lawyers and Rising Stars
  • Willig, Williams & Davidson Attorney Concludes Service as Chair of Pennsylvania IOLTA Board
  • 15 Willig, Williams & Davidson Attorneys Named Among 2019 ‘Best Lawyers in America’
  • 14 Willig, Williams & Davidson Attorneys Named 2018 PA Super Lawyers and Rising Stars
  • Pennsylvania to Conduct Historic Judicial Elections in 2015
  • Irwin Aronson Discusses Waste, Fraud of Abuse of Cyber Charter Schools with Rick Smith Show
  • Attorney Irwin Aronson Speaks with the Rick Smith Show About School Districts and State Legislative Budgets
  • Partner Irwin W. Aronson Helps PAHRA Calibrate its ‘Moral Compass’
  • Willig, Williams & Davidson Lawyers Named Among 2020 ‘Best Lawyers in America’
  • 17 Willig, Williams & Davidson Attorneys Named 2021 PA Super Lawyers, Managing Partner Named Among Top Attorneys in State
  • 13 Willig, Williams & Davidson Attorneys Named Among 2022 ‘Best Lawyers in America,’ Two Named ‘Lawyers of the Year’ in Employee Benefits, Union Law
  • 18 Willig, Williams & Davidson Attorneys Named 2023 PA Super Lawyers & Rising Stars
  • 16 Willig, Williams & Davidson Attorneys Named Among 2024 ‘Best Lawyers in America’
  • 17 Willig, Williams & Davidson Attorneys Named Among 2025 ‘Best Lawyers in America,’ Deborah Willig and Irwin Aronson Named ‘Lawyer of the Year’

Education

  • Dickinson School of Law (J.D., 1982)
  • Pennsylvania State University (B.A., Labor Studies, major; Economics, minor, magna cum laude, 1973)

Honors and Awards

  • Recognized by The Best Lawyers in America©, 1987 to Present
  • Selected to the Pennsylvania Super Lawyers list, Super Lawyers (Thomson Reuters), 2004-2006, 2011, 2014 to Present
  • Sol Hoffman Award for Outstanding Service to the Commonwealth of Pennsylvania, Keystone Research Center, 2005
  • Citizen of the Year, Chester County Labor Council, 2001
  • Chapel of the Four Chaplins, Humanitarian Award, 2001
  • Highly Recommended Rating, Candidate for Commonwealth Court, Pennsylvania Bar Association Judicial Evaluation Commission, 2001

Associations

Professional

  • Pennsylvania IOLTA Board (by designation of the Supreme Court of Pennsylvania); Member 2012 to 2018; Treasurer 2013 to 2015; Chair 2015 to 2018
  • AFL-CIO Lawyers Coordinating Committee, 1982 to Present
  • National Building Trades Attorney’s Committee, 1982 to Present
  • Council of Large Public Housing Authorities Attorneys’ Working Group, 1987 to Present
  • Dauphin County Bar Association, 1982 to Present
  • Philadelphia Bar Association, 2001 to Present
  • Pennsylvania Bar Association, 1982 to Present
  • Housing and Development Law Institute, 1987 to Present

Community

  • Beth El Temple of Harrisburg, Board of Directors, 1990 to 1996
  • Jewish Community Center of Harrisburg, Board of Directors, 1986 to 1991; First Vice President 1988 to 1991
  • United Jewish Community of Harrisburg, Board of Directors, 1987 to 1991
  • Pennsylvania Labor History Society, Board of Directors, 2005 to Present
  • Board of Directors, American Society for Technion, 2012 to Present

Admissions

Bar Admissions

  • Pennsylvania, 1982

Court Admissions

  • U.S. District Court for the, Middle District of, Pennsylvania, 1982
  • U.S. Court of Appeals, for the, District of Columbia, 1984
  • U.S. Court of Appeals for the, Third, Circuit, 1984
  • United, States, Supreme Court, 1987

Employment

  • Willig, Williams & Davidson, Partner, 2001-Present
  • Johnston, Aronson & Diamond, Principal, 1998-2001
  • Handler, Gerber, Johnston & Aronson, Principal, 1987-1998
  • Handler, Gerber, Johnston Strokoff & Cowden, Associate, 1982-1987
  • Pennsylvania AFL-CIO, Research and Education Director, 1978-1982
  • Pennsylvania AFL-CIO News, Editor, 1978-1982
  • Pennsylvania AFL-CIO, Lobbyist, 1974-1982
  • Pennsylvania AFL-CIO, Staff, 1973-1982
  • Philadelphia
  • Harrisburg
  • Haddonfield
  • Chicago
  • 215.656.3600
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