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Gregg A. Marchessault
37 years licensed
Gregg A. Marchessault is a lawyer. Court admissions include Fifth Circuit Court of Appeals, Texas Eastern District Court. Licensed in Texas since 1989. Graduated from University of Oklahoma in 1981.
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Law school
Bar admission
Office
Disciplinary
GM
Gregg A. Marchessault
37 years licensed
Claim profileContact attorney
Gregg A. Marchessault is a lawyer. Court admissions include Fifth Circuit Court of Appeals, Texas Eastern District Court. Licensed in Texas since 1989. Graduated from University of Oklahoma in 1981.
Law school
University of Oklahoma
Class of 1981
Bar admission
1989
State Bar of TX · No. 12969400
Office
—
Disciplinary
None on record
Clean since admission
Case data
Case data
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Practice & jurisdiction
Courts admitted
- Fifth Circuit Court of Appeals
- Texas Eastern District Court
- US Court of Appeals for the Armed Forces
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Last refreshed Jun 2026