Located in the heart of Houston and the doorway to the Port of Houston, ZEMANEK MARINE SERVICES, INC. is the company you are looking for to provide professional, high-level service for your marine surveying and consulting needs.

Our company is backed by thirty-three years of experience in the industry. All of our surveys are done with the intention of mitigating losses to the greatest extent. We have considerable experience in assisting with the subrogation efforts. We have given many depositions as well as testified in federal courts.

Feel free to contact us with any questions you may have. We look forward to working with you in the near future.

Zemanek Marine Services, Inc. is a marine surveying and consulting firm, based in La Porte, Texas.

ZMS is owned and operated by John P. Zemanek, Jr., who is a graduate of the United States Merchant Marine Academy and has over 33 years experience in the industry.


  • Bunker
  • Condition
  • Damage
  • Discharge
  • Draft
  • Fumigation
  • Hatch Cover
  • Heavy Lift
  • Inventory
  • Investigation
  • Lashing & Securing
  • Loading
  • Loss Control & Prevention
  • Mill Claims
  • Off-Hire
  • On-Hire
  • Personal Effects
  • Project Cargo
  • Quality Control
  • Shortage Investigation

  • Expert Witness
  • Investigation
  • Port Captain
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Zemanek Marine Services, Inc.
P.O. Box 1744
La Porte, TX 77572

Office: (281) 471-5100
Fax: (281) 471-5102

John Zemanek, President
Mobile: (281) 960-6858
Email: jzemanek@zemanekmarine.com

Stephanie Zemanek, Office Manager
Mobile: (281) 914-0431
Email: szemanek@zemanekmarine.com

Gary Price, Staff Surveyor
Mobile: (281) 824-2000
Email: gprice@zemanekmarine.com

Drew Zemanek
Mobile: 346-978-3886
Email: dzemanek@zemanekmarine.com