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Power Your Next Move With

Established in 1993, Tolunay-Wong Engineers, Inc. (TWE) is one of the largest geosciences consulting firms in the Gulf Coast Region. Our offices are located across Texas and Louisiana.  As a Top 500 Engineering News-Record (ENR) Design firm and named one of Houston's fastest-growing engineering companies by the Houston Business Journal, we are driven by our employees who have a shared sense of creativity and humility and a desire to have a positive impact on the world.

Our Mission

Leading the industry to superior safety standards and implementing cost-effective solutions with revolutionary engineering designs.


Welcome to                                           Tolunay-Wong Engineers Inc.


With deep knowledge of our client's local soil conditions, our team is constantly reinventing best-in-class solutions and providing responsive and reliable support to every project.


engineers, scientists, technicians, geologists, hydrogeologists, lab and support personnel.


Geotechnical Engineering

Targeted Execution. Personal Approach.

With a history of saving our clients millions of dollars, our highly regarded engineering staff evaluate subsurface conditions to develop foundation and site development recommendations for planned construction through engineering, subsurface exploration, and laboratory testing. Our core areas of expertise include but are not limited to:

  • Petrochemical Plants, Landfills, Pipelines, Levee
  • Liquefied Natural Gas Plants
  • Commercial Development, Schools, Universities, and Hospitals
  • Transportation Highways, Roads, Bridges



Advanced Materials Knowledge

Our CMT Division produces thousands of individual reports annually for various laboratory tests and field inspection of construction materials. Most of these involve concrete, aggregates, soils in-place, and bituminous materials. Also, we regularly test brick, granite, stone masonry, mortar, and manufactured elements, such as prestressed beams and precast panels.

Construction Materials Testing

Geophysical             Services

Subsurface Due Diligence

We possess a wide array of engineering applications to conduct near-surface geophysical explorations, such as locating underground voids, utilities, tanks, piping, potential hazards, geologic features, and anomalies, to enhance your construction projects.

Deep Foundations Testing

Industry Leadership       Deliver Incredible Together

Environmental Field Services

Meet Compliance Goals

Whether it is consulting or field services for “soft” natural resource management and regulatory analysis projects or “hard” hazardous materials management projects, we have the staff and equipment resources to execute projects that support our clients’ environmental compliance initiatives.

Cost-Effective        Pile Systems

Specialized in using Pile Driving Analyzer, Case Pile Wave Analysis, & wave equation analysis (GRLWEAP) to evaluate static axialpile capacity and integrity, and provide complete driven pile deep foundation testing programs for projects of any scope and foundation type.  We also provide drivability & constructability studies, and inspector charts to evaluate the most efficient hammer systems and ensure proper driven pile installations.  

Mitigate Risk. Maximize Value.



Relentlessly innovative by nature, our accomplished professional staff includes former university professors, industry veterans, and project engineers who work with startups, small-mid sized clients, and Fortune 500 firms everyday. Leveraging decades of industry experience, our executive team provides expert leadership to the TWE team and long term value for our clients.

Our Approach

Trusted Qualifications


Don't miss a beat.

Having a dedicated full service drilling operation and state of the art equipment allows us to deliver agile support.

TWE maintains an extensive fleet of CPT and drilling equipment capable of scaling to client's project needs and maintaining our safety standards.

In-house Drilling Fleet

Award-Winning Safety Record

TWE’s comprehensive occupational health and safety program was developed to provide the management systems and support necessary to maintain a safe working environment for all employees.

- “Best in Class” at the 29th Annual Houston Business Roundtable and Houston Area Safety Council Safety Excellence Awards

- Awarded the ExxonMobil Contractor Safety Program and ZERO Injuries


TWE's individual Labs are accredited by:

· TxDOT (Texas Department of Transportation)

· A2LA (American Association for Laboratory Accreditation)

· USACE (US Army Corps of Engineers)

· AMRL (AASHTO Materials Reference Laboratory)

Certified Laboratory Testing

Responsible & Reliable Support

Throughout the Project Life Cycle

Professional Engineering Licenses in the following States: Alabama, Arkansas, Florida, Louisiana, Mississippi, Oklahoma, Texas – PE, Geoscience, TCEQ

Health & Safety: DISA, HASC (Houston Area Safety Council), ISN (ISNetworld), Avetta (Formerly PICS Auditing), NCMS (National Compliance Management Service)

Our company-wide quality program is compliant with ASTM E-329, ISO IEC Guide 17025 and NQA-1 quality standards.




Houston, TX - Corporate HQ

10710 S. Sam Houston Pkwy W. Suite 100. Houston, TX 77031 Ph: 713.722.7064 Fx: 713.722.0319

For business inquiries, please email us at

Beaumont, TX

2455 W. Cardinal Dr.Suite A

Beaumont, TX 77705

Ph: 409.840.4214

Fx: 409.840.4259

Corpus Christi, TX

826 South Padre Island Dr.

Corpus Christi, TX 78416

Ph: 361.884.5050

Dallas, TX

1951 University Business Dr. Suite 118

McKinney, TX 75071

Ph: 972.542.9020

Fx: 214.250.5067

Fort Worth, TX

2426 Gravel Dr.

Fort Worth, TX 76118

Ph: 817.616.3284

Freeport, TX

1821 Avenue J

Freeport, TX 77541

Ph: 979.239.4111

La Porte, TX

2301 Underwood Rd.

La Porte, TX 77571

Ph: 281.471.2042

Texas City, TX

1002 34th St N

Texas City, TX 77590

Ph: 409.655.5291

Fx: 409.655.5894

Baton Rouge, LA

6037 Commerce Pointe Dr.

Geismar, LA 70734

Ph: 225.644.4966

Fx: 225.644.4987

Lake Charles, LA

713 East Napoleon St.

Sulphur, LA 70663

Ph: 337.528.2700

New Orleans, LA

524 Elmwood Park Boulevard

Suite 135

Elmwood, LA 70123

Ph: 504.467.6009

Fx: 504.467.4150