Atty. Caleb Holmes

Atty. Caleb Holmes

Caleb’s practice focuses on complex environmental litigation and environmental compliance. Caleb has represented clients in state and federal courts and in administrative proceedings.

Call (215) 988-7800

Profile Summary

About Caleb Holmes at a glance

Caleb Holmes is a litigation and environmental attorney based in Philadelphia, Pennsylvania, practicing at Greenberg Traurig. Educated at Vermont Law School (—, 2007). Recognitions include Best Lawyers in America — Environmental Law (2026) and Best Lawyers in America — Litigation - Environmental (2026). Serves clients in Philadelphia, PA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

Caleb’s practice focuses on complex environmental litigation and environmental compliance. Caleb has represented clients in state and federal courts and in administrative proceedings. In his environmental litigation practice, Caleb often represents corporate clients in cost recovery, contribution and government enforcement actions under Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). Caleb has litigated such matters through trial and has also helped clients negotiate and settle matters. He has worked with clients on cases involving a wide variety of contaminants, including but not limited to PCBs, PFAS, and dioxins. Caleb also has broad experience litigating complex commercial litigation, including products liability and mass tort/toxic tort matters. He has a depth of experience with all aspects of discovery, including work with experts, taking and defending depositions, motion practice, trial preparation and settlement negotiation.

Caleb provides practical advice to clients in the acquisition and disposition of businesses and assets and the re-development of brownfield sites. He works with clients to achieve compliance with state-specific voluntary cleanup programs, including Pennsylvania’s Land Recycling Program (Act 2).

Caleb counsels clients on compliance with a broad range of federal and state environmental laws, including RCRA, the Clean Air Act, the Clean Water Act, and a host of other federal and state environmental laws.

In addition to his legal work, Caleb is active in various professional and civic organizations. He is currently serving as the Council’s Secretary for the Pennsylvania Bar Association’s Environmental and Energy Law Section.

Concentrations
  • Air, water and waste regulation
  • Superfund and contamination
  • Oil and gas development

Practice Areas Explained

Caleb Holmes's Areas of Practice

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

Civil Litigation

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

Caleb Holmes is one of 409,070 litigation attorneys indexed nationally. Browse litigation attorneys in Pennsylvania →

Environmental Law

Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.

Caleb Holmes is one of 50,776 environmental attorneys indexed nationally. Browse environmental attorneys in Pennsylvania →

Jurisdictional Context

Why local counsel matters in Pennsylvania

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

Looking for additional Pennsylvania attorneys? Browse all attorneys in Philadelphia or all attorneys in Pennsylvania.

Frequently Asked

Common questions about Caleb Holmes

Where is Caleb Holmes's law office located?
Caleb Holmes's law practice is located in Philadelphia, Pennsylvania. The firm is Greenberg Traurig. You can contact the office directly through this profile page.
What practice areas does Caleb Holmes handle?
Caleb Holmes focuses on litigation, environmental. Each practice area listed reflects experience handling cases of that type in Pennsylvania.
Where did Caleb Holmes go to law school?
Caleb Holmes earned their education at (—, 2007).
How can I contact Caleb Holmes for a consultation?
You can contact Caleb Holmes 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 Caleb Holmes received?
Caleb Holmes's notable recognition includes: Best Lawyers in America — Environmental Law; Best Lawyers in America — Litigation - Environmental.

Education

Vermont Law School
- 2007

Awards

Best Lawyers in America — Environmental Law
- 2026
Best Lawyers in America — Litigation - Environmental
- 2026

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