Quanta Companies

Stronghold Companies

Stronghold Companies

225 S. 16th St. La Porte, TX 77571


The Stronghold group of companies consists of several companies that work together to provide the refining, petrochemical, midstream and upstream industries with the most experienced and professional employees, up to date technology, training and an executive team dedicated to the success of our organization as well as the success of our companies. We believe in long-term relationships with clients that extend beyond the job site. These relationships are maintained through excellence and diligence to the safety and success of everyone involved in our projects from the office to the job site.

At The Stronghold Companies, we believe the ultimate measure of our effectiveness lies in the achievements of our customers. We are committed to the continued success and growth by being the leading provider for specialty contractor services. We honor this commitment through dedicated customer support, an unwavering commitment to our great employees and adherence to the business principles that have made Stronghold the first choice in specialty contractor services for the refining and petrochemical industry.

The Stronghold Companies are dedicated to the safety and wellness of our employees, contractors, clients, the public and the environment.

Below is a list of the Stronghold Companies:

Cat-Spec, Ltd. (CSL)

Elite Turnaround Specialists, Ltd. (ETS)

Specialty Tank Services, Ltd. (STS)

Stronghold Inspection, Ltd. (SHI)

TurnKey Automation, Ltd. (TKIE)

Stronghold Tower Group, Ltd. (STG)

Catalyst Changers (CC)

Stronghold University (SU)

Areas of Expertise

  • Underground Utility