Twining Inc.

Grounded in Safety, Built on Sustainability.

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About the firm

Twining Inc. is a full-service engineering and materials testing company with over 125 years of history serving California and beyond. Twining provides geotechnical engineering, materials testing, construction inspection, special inspections, forensic engineering, and quality control services across public works, healthcare, private development, education, energy, and transportation sectors. Twining Inc. operates fully certified and accredited construction materials testing laboratories and serves more than 10,000 private and public sector clients.

Team
Large
Firm type
Geotechnical Engineering · Materials Testing · Forensic Engineering

Capabilities

Engineering

Service website

Applied engineering services for a wide range of construction and infrastructure projects.

  • Geotechnical Engineering
  • Vibration and Geo-Instrumentation
  • Concrete Engineering and Research
  • Forensic Engineering

Materials Testing

Service website

Testing of construction materials at fully certified and accredited laboratories inspected by all major governing agencies.

  • Soils Engineering and Testing
  • Pavement Engineering and Testing
  • Concrete Testing
  • Asphalt Testing
  • Testing of Steel, Concrete, Masonry, and Other Materials
  • Concrete Research, Development, and Value Engineering

Inspections

Service website

Responsive and reliable inspection services meeting and exceeding industry standards.

  • Special Inspection
  • Construction Inspection
  • Stormwater Inspection
  • Balcony Bill Inspections
  • Quality Control Management

Modular and Industrialized Buildings

Service website

Quality system auditing and listing for industrialized buildings supporting the growing modular construction industry.

  • Quality System Auditing and Listing
  • Industrialized Buildings Expertise

Industries

Government · Healthcare · Commercial · Education · Power Generation · Transportation · Industrial

Projects

Great Wolf Lodge

Hospitality · Client: Great Wolf Lodge

LADPW Lancaster Solar Energy Project

Lancaster, CA · Energy · Client: Los Angeles Department of Public Works

CSULB College of Continuing and Professional Education

Long Beach, CA · Education · Client: California State University, Long Beach