Atty. Gregory A. Thompson

Atty. Gregory A. Thompson

Gregory A. Thompson is a partner in Hahn Loeser’s nationally acclaimed Litigation and Construction Groups.

Cleveland Cleveland 14 yrs experience 14 year
Call (216) 621-0150 Book Appointment

Profile Summary

About Gregory A. Thompson at a glance

Gregory A. Thompson is a business, class action, product liability, and litigation attorney based in Cleveland, Ohio, practicing at Hahn Loeser & Parks LLP. They have 14+ years of legal experience, licensed to practice since 2012. Admitted to practice in Ohio (2012). Educated at The University of Akron (J.D., 2012) and Ohio University (B.B.A, 2009). Recognitions include Best Lawyers in America — Commercial Litigation (2026), Best Lawyers in America — Mass Tort Litigation / Class Actions - Defendants (2026), and Best Lawyers in America — in America (2026). Serands clients in Cleveland, OH and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

Gregory A. Thompson is a partner in Hahn Loeser’s nationally acclaimed Litigation and Construction Groups. Greg is a seasoned litigator with a proven track record in a wide array of matters. He has significant experience handling complex commercial litigation, including breach of contract, Uniform Commercial Code (UCC), and business tort claims. Greg has also successfully handled significant intellectual property matters and employer intentional torts.

Greg has strengths across a number of industries, with an emphasis on the construction and manufacturing sectors. In the construction arena, Greg has successfully pursued and defended multi-million-dollar claims involving delays, extra and changed work, and construction defects on both public and private projects. Greg regularly represents general contractors, construction managers, sureties, specialty subcontractors, and suppliers, among other project participants. Greg also maintains a robust pre-litigation practice with the aim of mitigating risk and avoiding disputes altogether.

A few of Greg’s recent successes include:

  • Obtained seven-figure settlement against material supplier that delivered non-conforming materials to a luxury high-rise apartment project, thereby causing significant delays and extra work.
  • Obtained a $1.4 million settlement against the Ohio Department of Transportation arising out of the acceleration of a mine grouting project under Ohio State Route 2.
  • Obtained dismissal of an intermediary bank from lawsuit alleging nine-figure fraud claims.

Based on Greg’s successes for his clients, he was selected to and regularly serves as an instructor at The University of Akron School of Law’s Summer Trial Academy. Greg is also deeply invested in a number of industry trade associations and served as the chair of the Cleveland-Metropolitan Bar Association’s Litigation Section.

Practice Areas Explained

Gregory A. Thompson's Areas of Practice

Each practice area below reflects the types of cases Gregory A. Thompson handles, with a brief overview of what that area of law covers.

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Gregory A. Thompson is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Ohio →

Class Action

Gregory A. Thompson is one of 26,424 class action attorneys indexed nationally. Browse class action attorneys in Ohio →

Product Liability

Gregory A. Thompson is one of 66,193 product liability attorneys indexed nationally. Browse product liability attorneys in Ohio →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Gregory A. Thompson is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Ohio →

Jurisdictional Context

Why local counsel matters in Ohio

Practicing law in Ohio. Legal matters in Ohio are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Cleveland are typically filed in the local municipal court or the appropriate Ohio state district court, depending on subject matter and amount in controversy. An attorney licensed in Ohio brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Ohio courts without local counsel or pro hac vice admission.

Looking for additional Ohio attorneys? Browse all attorneys in Cleveland or all attorneys in Ohio.

Frequently Asked

Common questions about Gregory A. Thompson

Where is Gregory A. Thompson's law office located?
Gregory A. Thompson's law practice is located in Cleveland, Ohio. The firm is Hahn Loeser & Parks LLP. You can contact the office directly through this profile page.
What practice areas does Gregory A. Thompson handle?
Gregory A. Thompson focuses on business, class action, product liability, litigation. Each practice area listed reflects experience handling cases of that type in Ohio.
How long has Gregory A. Thompson practiced law?
Gregory A. Thompson has 14+ years of legal experience and has been licensed since 2012.
Where did Gregory A. Thompson go to law school?
Gregory A. Thompson earned their education at (J.D., 2012); (B.B.A, 2009).
How can I contact Gregory A. Thompson for a consultation?
You can contact Gregory A. Thompson directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Gregory A. Thompson received?
Gregory A. Thompson's notable recognition includes: Best Lawyers in America — Commercial Litigation; Best Lawyers in America — Mass Tort Litigation / Class Actions - Defendants; Best Lawyers in America — in America; Best Lawyers in America — from 2022-2024 for work in:; Best Lawyers in America — Commercial Litigation - 2024.

Education

J.D.
The University of Akron
- 2012
B.B.A
Ohio University
- 2009

Awards

Best Lawyers in America — Commercial Litigation
- 2026
Best Lawyers in America — Mass Tort Litigation / Class Actions - Defendants
- 2026
Best Lawyers in America — in America
- 2026
Best Lawyers in America — from 2022-2024 for work in:
- 2026
Best Lawyers in America — Commercial Litigation - 2024
- 2026
Best Lawyers in America — Litigation - Construction - 2024
- 2026
Best Lawyers in America — Mass Tort Litigation / Class Actions - Defendants - 2024
- 2026
Best Lawyers in America — Commercial Litigation - 2023
- 2026
Best Lawyers in America — Mass Tort Litigation / Class Actions - Defendants - 2023
- 2026
Best Lawyers in America — Commercial Litigation - 2022
- 2026
Best Lawyers in America — Construction Law - 2022
- 2026
Best Lawyers in America — Litigation - Construction - 2022
- 2026
Best Lawyers in America — Additional Areas of Practice:
- 2026
Best Lawyers in America — Construction Law
- 2026
Best Lawyers in America — Awards:
- 2026
Best Lawyers in America — The Best Lawyers in America
- 2026
Best Lawyers in America — , Mass Tort Litigation/Class Actions – Defendants, 2025-26
- 2026
Best Lawyers in America — Ones to Watch
- 2026
Best Lawyers in America — , Best Lawyers
- 2026
Best Lawyers in America — Rising Star, Ohio Super Lawyers, 2018-25
- 2026
Best Lawyers in America — America’s Top 100 Bet-the-Company Litigators, 2019
- 2026

Bar Admissions

Ohio
Admitted: 2012

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