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Ahmad, Zavitsanos & Mensing

Houston, Texas
THE BEST LAWYERS IN AMERICA® AWARDS:: 13 BEST LAWYERS: ONES TO WATCH® IN AMERICA AWARDS:: 13 BEST LAW FIRMS® AWARDS:: 11
26 Attorneys

About Ahmad, Zavitsanos & Mensing

Our Attorneys (26)

Office Locations

Houston, TX Headquarters

1221 McKinney Street, Suite 2500, Houston, TX 77010

713-655-1101

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Leadership Team

Sandy Howell

Office Administrator

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John Zavitsanos

Managing Partner

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Awards & Recognition

Featured Awards

THE BEST LAWYERS IN AMERICA® AWARDS: 13

BEST LAWYERS: ONES TO WATCH® IN AMERICA AWARDS: 13

BEST LAW FIRMS® AWARDS: 11

All Awards

  • AZA named among nation's "Most Feared" law firms
  • Benchmark Litigation - Firm and three lawyers rated
  • AZA listed by Law360 among 10 boutiques “Giving BigLaw a Run for its Money”
  • BTI Client Service A-Team 2012 to firm AZA
  • 3 of Texas Top 2011 Verdicts on Both Sides of the Bar - Texas Lawyer
  • Who's Who in Energy named 3 AZA Lawyers - Listed by 7 city business journals
  • Texas Super Lawyers - up to 7 to 13 lawyer on Rising Stars list for Texas
  • Texas Super Lawyers - 3 AZA Lawyers Top 100 Texas, 4 AZA Lawyers Top 100 Houston
  • U.S. News/Best Law Firms- AZA Tier 1 in Commercial Litigation
  • U.S. News/Best Lawyers in America - 9 AZA Best Lawyers
  • BTI Client Service All-Star Team 2013 - John Zavitsanos
  • BTI Consulting Group names AZA "Awesome Opponents"
  • Texas Intellectual Property Law Firm of the Year by firm clients and the publishers of Global Law Experts
  • Texas Super Lawyers - 9 AZA Lawyers named Texas Super Lawyers
  • AZA Earns Selection to Texas Verdicts Hall of Fame - Texas Lawyer
  • Three AZA Attorneys Named to Who's Who in Energy List - Houston Business Journal
  • Chambers USA: America's Leading Lawyers for Business - AZA among Best in Commercial Litigation
  • Chambers USA: America's Leading Lawyers for Business - 3 AZA lawyers rated
  • Houston Law Firm AZA Named Among Largest Energy Practices by Houston Business Journal

Key Contacts

John Zavitsanos

Managing partner

713-655-1101

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Mary Flood

Consultant

7138576560

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Notable Clients

Air Liquide America American Automobile Association CITGO Petroleum Corporation Enbridge Inc. Genuine Parts Company Mercedes-Benz USA National Oilwell Varco Plains All American Pipeline, L.P. PSC , LLC Versata Software

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Reviews

4.5 / 5

51 Reviews

M

Mercedes Greenfelder

Jan 31, 2026

Great people who truly care at Ahmad, Zavitsanos & Mensing - the best legal team in undefined

Just wanted to say a huge thanks to Ahmad, Zavitsanos & Mensing and the staff. They really went above and beyond for me and my family during a very difficult legal battle. We couldn't have done it wit...

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Josephine Pollich

Jan 31, 2026

A huge weight off my shoulders thanks to the amazing work of Ahmad, Zavitsanos & Mensing

Everyone at Ahmad, Zavitsanos & Mensing's office in undefined was so nice and helpful. They made a tough situation a lot easier to deal with by being so patient and explaining everything clearly. I ne...

J

Jennie Beer

Jan 31, 2026

Ahmad, Zavitsanos & Mensing did a great job handling my complex Commercial Litigation law case from start to finish

I've worked with a few lawyers in undefined over the years, but Ahmad, Zavitsanos & Mensing stands out for their honesty and thoroughness. They were clear about the process and kept me updated at all...

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Catherine Torphy

Jan 31, 2026

Would recommend Ahmad, Zavitsanos & Mensing for sure to anyone in undefined needing legal help

I wasn't sure who to call for my Commercial Litigation law problem, but I'm so glad I went with Ahmad, Zavitsanos & Mensing. They really listened to me and understood my situation. It was such a relie...

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Emmett Reichel

Jan 31, 2026

Ahmad, Zavitsanos & Mensing did a great job handling my complex Commercial Litigation law case from start to finish

It's hard finding a reliable lawyer these days, but Ahmad, Zavitsanos & Mensing in undefined is definitely one of the good ones. Would use them again if needed without hesitation. They are professiona...