John J. Gazzoli, Jr.


Phone: 314.854.0439

Fax: 314.726.6786



Amy Weaver


John has over 40 years’ experience representing employers in all facets of labor and employment law and businesses in commercial and complex litigation in numerous industries.  A locally and nationally known and respected management labor lawyer, he negotiates and administers collective bargaining agreements, counsels employers on union avoidance, protects employers from unlawful union activities and corporate campaigns, provides guidance on employment policies, business acquisitions, divestitures and restructurings and litigates before the National Labor Relations Board, federal and state administrative agencies, arbitration panels and federal and state courts.  He has obtained jury verdicts in several states for employers in employment discrimination, sexual harassment and wrongful discharge cases.  He has counselled and successfully defended employers before OSHA and MSHA.  John’s knowledge of business organizations and transactions and his courtroom skills have built an extensive practice in commercial and complex litigation, including cases involving trade secrets and non-competition covenants, shareholder disputes, lender liability, commercial transactions, construction and real estate development projects and antitrust.  An extremely versatile lawyer, John assists in drafting business agreements so that future problems can be minimized.

Expand All Tabs

  • Court Memberships

    • All Missouri state courts
    • All Illinois state courts
    • U.S. Court of Appeals for the 3rd, 6th, 7th, 8th and D.C. Circuits
    • U.S. District Court for the Eastern and Western Districts of Missouri, Central and Southern Districts of Illinois and Eastern District of Michigan
    • Department of Veterans Affairs (Accredited Attorney)
  • Representative Experience

    Some highlights of John’s representations include:

    • Representation of large acute-care hospital in three large-scale union organizing drives and elections resulting in NLRB election wins
    • Obtained and collected $175,000 trial verdict for construction firm against labor union for illegal picketing
    • Obtained dismissal of shareholders derivative lawsuit and pursued RICO damage suit for publicly-owned client targeted by union corporate campaign
    • Represented retailer in nation-wide class action challenging discriminatory promotion practices
    • Successful representation of several employers in workplace fatality proceedings before OSHA and state agencies
    • Obtained and collected $2 million jury verdict for manufacturer for breach of contract
    • Successful representation of real estate developer in lender liability litigation
    • Obtained injunctive relief and damages against sales representatives who breached restrictive covenants in employment agreements
    • Obtained jury verdict for employer in litigation under WARN Act
    • Obtained substantial settlements for manufacturer from price-fixing conspiracy among suppliers
    • Represented general contractor in successful bid protest resulting in award of $75 million project
  • Corporate/Charitable Organizations

    • Associated General Contractors of America
    • Southern Illinois Builders Association (General Counsel)
    • Leadership Council Southwestern Illinois, Board of Directors
  • Professional Affiliations & Memberships

    • Fellow, American College of Labor & Employment Lawyers
    • Secy/Treasurer, Associated General Contractors of America Labor and Employment Law Council
    • American Bar Association, Sections of Litigation, Construction and Labor/Employment Law
    • Illinois State Bar Associaiton
    • Missouri Bar Association
    • Bar Assn. of Metropolitan St. Louis
  • Publications, Presentations & Teaching

    • Faculty Member, SIU-Edwardsville Construction Leadership Institute
  • Community Involvement

    • Member, Legislative Committee, Clayton Chamber of Commerce
    • Lieutenant, U.S. Navy, 1969-1972, Vietnam Service and Campaign Medals
  • Honors, Distinctions & Ratings

    • AIOLC 2016 – 10 Best Labor & Employment Lawyers in Missouri
    • Best Lawyers in America (2016 to present)
    • Martindale-Hubbell AV Preeminent Rating
    • Super Lawyer (2006 to present)
    • Top 100 Labor Attorneys (Labor Relations Institute)