Innovating Creative and Practical Solutions

For over 125 years.

Unparalleled Experience

Twining has developed a strong reputation by providing sound engineering, testing, and inspection services on every project we undertake. We earned this reputation knowing that the true measure of our performance rests in the satisfaction of our clients. We approach each project with the understanding that we are evaluated on the safety and durability of the structures and pavements we test and inspect.

This approach has allowed us to develop long lasting relationships with our clients. These relationships have given us experience that is unmatched by our competitors.

See how Twining addresses your structural concerns for concrete structures & pavements.

Twining, Inc. uses state-of-the art technology to monitor and test your structures, keeping them safe and up to safety standards.

  • Survey & Documentation
  • Non-Destructive Evaluation (NDE)
  • Invasive Sampling & Material Testing
  • Petrographic & Materials Investigations
  • Special Testing

Locations

Corporate Headquarters

2883 East Spring Street, Suite 300
Long Beach, CA 90806

  • Phone: 562.426.3355
  • Fax: 562.426.6424

San Diego

15950 Bernardo Center Drive, Suite J
San Diego, CA 92127

  • Phone: 858.974.3750
  • Fax: 562.426.6424

Bay Area

5027 Commercial Circle, Suite G
Concord, CA 94520

  • Phone: 925.849.8186
  • Fax: 562.426.6424

Riverside

111 Main Street, Unit A
Riverside, CA 92501

  • Phone: 909.383.6660
  • Fax: 562.426.6424

Ventura

1879 Portola Road, Suite G
Ventura, CA 93003

  • Phone: 805.644.5100
  • Fax: 562.426.6424

Sacramento

1572 Santa Ana Avenue
Sacramento, CA 95838

  • Phone: 916.649.9000
  • Fax: 562.426.6424

Fountain Valley

18071 Mount Washington Street, Unit A
Fountain Valley, CA 92708

  • Phone: 949.553.0370
  • Fax: 949.553.0371

Ridgecrest

1519 N. Norma Street
Ridgecrest, CA 93555

  • Phone: 562.426.3355
  • Fax: 562.426.6424

Long Beach

3310 Airport Way
Long Beach, CA 90806

  • Phone: 562.426.3355
  • Fax: 562.426.6424

Tampa

5801 Benjamin Center Drive,
Suite 102
Tampa, FL 33634

  • Phone: 813.243.0370

Boulder

2800 Wilderness Place, Suite A
Boulder, CO 80301

  • Phone: 303.938.0166
  • Fax: 303.938.0167

Our Affiliations & Accreditations

Twining possess full-service construction material testing laboratories. Our laboratories are certified and/or accredited by all major governing agencies:

Careers

Interested in joining our team of driven professionals and technical experts?
Find your next opportunity at Twining.