Overview
Williams Kastner has been delivering legal and business advice to a broad mix of clients since our Seattle office opened in 1929. With more than 60 lawyers in the Pacific Northwest, the firm provides national and regional capabilities that offer a client-first approach with a practical sensibility only a local firm can provide. We are attorneys, paralegals, litigation assistants, and professional support staff dedicated to advancing the business and legal objectives of our clients. We are focused on building relationships with our clients by combining knowledge and experience with creativity—both in and out of the courtroom. Our shared values are shown through our dedication to our work and the pride with which we devote to the practice of law.
Our firm is well known for its vast trial and litigation successes. We have substantial experience in a broad range of legal areas such as administrative law, antitrust, bankruptcy, breach of contract, class actions, commercial torts, construction, defamation, drug products, employment practices, fire and marine, intellectual property, insurance coverage, insurance defense, environmental and land use, lender liability, products liability, professional liability, real estate, securities, toxic torts, hazardous waste, transportation, and premises liability.
Our clients are a mix of local, regional, U.S., and international entities. The firm has a strategic alliance with Duan & Duan in China which provides Williams Kastner’s clients with an experienced resource in Asia
Rankings
National
Regional
Portland-OR
Seattle
About Our Clients
ACCO Engineered Systems
ASCO Power
Albertsons Companies, Inc.
Baltimore Aircoil Company
Caliber Holdings
Carolina Solar Services, Inc.
Cascadia Healthcare
Circle K
Clayco, Inc.
Concrete Strategies
Federated Mutual Insurance Company
Great West Casualty Company
Hallmark Financial Services, Inc.
Hyatt
Installed Building Products
J.B. Hunt Transport Services, Inc.
Kaiser Gypsum Company, Inc.
Keystone RV Company
Markel
Marriott
Maxim Healthcare
Merck & Co., Inc.
Milliman, Inc.
National Interstate Insurance Company
Nordstrom, Inc.
Pacific Market International
Parker-Hannifin Corporation
Penske
Pharmacists Mutual Insurance
Preferred Physicians Medical
Quanta Services, Inc.
Tiffin Motor Homes
The Coca-Cola Company
U.S. Bank
United Road Services, Inc.
Walmart Inc.
Western Insurance
Rankings
National
Regional
Portland-OR
Seattle
Spokane
Practice Areas
- Business Transactions
Williams Kastner’s Business Transactions, Tax, and Securities team provides integrated, strategic counsel to help clients navigate complex corporate, financial, and regulatory matters. Combining experience in corporate governance, capital markets, tax planning, and compliance, the team advises public and private clients on entity formation, mergers and acquisitions, financings, securities offerings, and tax-sensitive transactions. With a multidisciplinary approach, the firm delivers practical, cost-effective solutions across industries, including specialized guidance on aviation transactions and regulatory compliance, aligning legal strategy with clients’ broader business objectives. - Commercial Litigation
Williams Kastner represents businesses and individuals in complex disputes, delivering efficient, strategic resolutions often before trial or even before a lawsuit is filed.
With attorneys licensed across the Northwest, the firm brings deep experience in state and federal courts and serves as both national coordinating and lead trial counsel. Williams Kastner litigators offer exceptional courtroom strength, with extensive jury trial experience across the Seattle, Portland, and Spokane regions.
- ConstructionThe Construction Practice Team at Williams Kastner serves clients involved in all aspects of the construction industry, including general contractors, specialty subcontractors, owner/developers, architects, engineers, lending institutions, and insurers. In addition, we have extensive experience in all aspects of surety law. Familiarity with this broad range of clients has helped the firm to build a group of attorneys who are well-versed in virtually every construction-related legal issue.
- InsuranceWilliams Kastner’s Insurance Coverage team provides comprehensive advisory and litigation services to insurers, reinsurers, brokers, and related entities across the Pacific Northwest. The group handles complex coverage disputes involving a wide range of policies, including CGL, D&O, E&O, and property claims, as well as bad faith and regulatory matters. In addition to litigation, the team advises on claim analysis, policy drafting, reinsurance transactions, and corporate and compliance issues, working closely with clients on risk management, regulatory engagement, and business operations. With deep experience across trial, arbitration, and mediation, Williams Kastner delivers strategic, industry-focused counsel throughout the insurance lifecycle.
- Labor & EmploymentWilliams Kastner’s Labor and Employment team advises public and private employers across the full spectrum of workplace issues, from day-to-day counseling to high-stakes litigation. The firm defends employers in complex claims such as discrimination, wage and hour, and wrongful discharge, while also providing mediation services to resolve disputes efficiently. Attorneys offer practical guidance on employment policies, workforce decisions, and regulatory compliance, helping clients navigate evolving federal and state laws. The team also supports labor relations, conducts workplace investigations, and delivers management training, combining legal depth with real-world experience to reduce risk and drive effective outcomes.
- Product LiabilityWilliams Kastner’s Product Liability and Toxic Torts team represents manufacturers, distributors, and insurers in complex, high-exposure matters across a wide range of industries, including industrial equipment, consumer products, pharmaceuticals, and construction. The firm combines deep litigation experience with technical insight, including attorneys with engineering and scientific backgrounds, to effectively manage sophisticated claims and expert-driven cases. Known for a pragmatic, cost-conscious approach, the team emphasizes early resolution when appropriate while maintaining strong trial readiness in cases involving mass torts, catastrophic injuries, and toxic exposures. With decades of experience at the local, national, and international levels, Williams Kastner delivers strategic, resource-driven advocacy in some of the most challenging product and toxic tort litigation.
- Professional LiabilityWilliams Kastner has a long-standing reputation for defending professionals across a wide range of industries in complex liability matters. The firm represents clients including healthcare providers, attorneys, financial professionals, and corporate leaders in claims involving negligence, ethics violations, fraud, regulatory issues, and more. With deep experience in both civil and criminal proceedings, the team brings specialized expertise in areas such as disciplinary actions and insurance coverage disputes. Licensed across multiple Northwest states, Williams Kastner litigators handle a high volume of cases and have tried more professional liability cases to verdict than any other firm in the region, continuing a tradition of excellence in professional defense.
- Real EstateWilliams Kastner’s Real Estate Group provides comprehensive, full-service counsel across all aspects of real estate law, supporting clients in a complex and evolving market. The team advises on acquisitions, development, leasing, financing, land use, environmental compliance, and dispute resolution, while also handling litigation, foreclosures, and collections. With a strong emphasis on preventative law and client education, the group delivers practical, strategic guidance for commercial and residential projects, helping clients manage risk, navigate regulatory requirements, and achieve business objectives.
- RetailWilliams Kastner defends retail, hospitality, and consumer-facing businesses across Washington and Oregon in claims arising from daily operations. The firm works closely with in-house counsel, insurers, and national teams to manage risk, control costs, and align legal strategy with business realities. Attorneys handle a wide range of matters, including premises liability, negligent security, loss prevention incidents, and related employment claims, with a practical focus on early resolution when appropriate and strong trial readiness when needed.
- TransportationWilliams Kastner represents clients across the transportation and logistics industry, including carriers, brokers, aviation and maritime operators, and insurers, providing comprehensive counsel on litigation, regulatory compliance, commercial disputes, and risk management. With decades of experience, the firm handles matters ranging from personal injury and cargo claims to complex regulatory and operational issues across trucking, aviation, and maritime sectors. The team also advises on transactions, safety protocols, and crisis response, including 24/7 emergency incident support, while working closely with insurers and in-house teams to manage risk and deliver practical, business-focused solutions in high-stakes environments.