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Atty. Gislar R. Donnenberg

Atty. Gislar R. Donnenberg

Mr. Gislar R.

Houston Houston 33 yrs experience 33 year
Call (346) 577-8288 Book Appointment

Profile Summary

About Gislar R. Donnenberg at a glance

Gislar R. Donnenberg is an Attorney based in Houston, Texas, practicing at Locke Lord LLP. They have 33+ years of legal experience, licensed to practice since 1993. Their practice focuses on contracts, business, securities, environmental, and energy. Admitted to practice in Texas (1993). Educated at University of Texas (J.D., 1993) and University of Innsbruck (Magister, 1987). Recognitions include AV Preeminent. Active member of State Bar of Texas. Serands clients in Houston, TX and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Gislar R. Donnenberg is a lawyer practicing securities law, oil & gas, finance and 3 other areas of law
  • Gislar received a degree from University of Innsbruck in 1987, and has been licensed for 33 years
  • Gislar practices at Locke Lord LLP in Houston, TX

Practice Areas Explained

Gislar R. Donnenberg's Areas of Practice

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

Contracts

Gislar R. Donnenberg is one of 76,762 contracts attorneys indexed nationally. Browse contracts attorneys in Texas →

Business & Corporate Law

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

Gislar R. Donnenberg is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Texas →

Securities Law

Gislar R. Donnenberg is one of 64,529 securities attorneys indexed nationally. Browse securities attorneys in Texas →

Environmental Law

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

Gislar R. Donnenberg is one of 56,434 environmental attorneys indexed nationally. Browse environmental attorneys in Texas →

Energy & Utilities Law

Energy attorneys for oil & gas, renewables, utility regulation, and energy sector transactions.

Gislar R. Donnenberg is one of 36,230 energy attorneys indexed nationally. Browse energy attorneys in Texas →

Jurisdictional Context

Why local counsel matters in Texas

Practicing law in Texas. Legal matters in Texas are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Houston are typically filed in the local municipal court or the appropriate Texas state district court, depending on subject matter and amount in controversy. An attorney licensed in Texas 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 Texas courts without local counsel or pro hac vice admission.

Looking for additional Texas attorneys? Browse all attorneys in Houston or all attorneys in Texas.

Frequently Asked

Common questions about Gislar R. Donnenberg

Where is Gislar R. Donnenberg's law office located?
Gislar R. Donnenberg's law practice is located in Houston, Texas. The firm is Locke Lord LLP. You can contact the office directly through this profile page.
What practice areas does Gislar R. Donnenberg handle?
Gislar R. Donnenberg focuses on contracts, business, securities, environmental, energy. Each practice area listed reflects experience handling cases of that type in Texas.
How long has Gislar R. Donnenberg practiced law?
Gislar R. Donnenberg has 33+ years of legal experience and has been licensed since 1993.
Where did Gislar R. Donnenberg go to law school?
Gislar R. Donnenberg earned their education at (J.D., 1993); (Magister, 1987).
How can I contact Gislar R. Donnenberg for a consultation?
You can contact Gislar R. Donnenberg 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 Gislar R. Donnenberg received?
Gislar R. Donnenberg's notable recognition includes: AV Preeminent.

Education

J.D.
University of Texas
- 1993
Magister
University of Innsbruck
- 1987

Awards

AV Preeminent

Bar Admissions

Texas
Admitted: 1993

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