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GROUNDED IN SAFETY, BUILT ON SUSTAINABILITY

An engineering service company providing technical expertise and sustainable solutions in the growth of our built environment.

Since 2015, We've Provided Over

$80 Million

In Services On Energy Projects

With California Public Agencies, Over

$100 Million

Worked On Over

2,000

Healthcare Projects

Worked On Over

$1 Billion

In California Private Development

Pioneering New Standards

Twining possesses full-service construction material testing laboratories that are certified, accredited, and/or inspected by all major governing agencies.

Tailored Solutions
For Every Project

Twining provides a wide range of engineering services and solutions to address diverse construction and engineering needs. Our services are designed to ensure compliance with industry standards and regulations.

Engineering

Engineering

  • Geotechnical Engineering

  • Vibration and Geo-Instrumentation

  • Concrete Engineering & Research

  • Forensics

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Materials Testing

  • Soils Engineering and Testing

  • Pavement Engineering and Testing

  • Concrete Research, Development, and Value Engineering

  • Testing of Steel, Concrete, Masonry, and other materials

  • Materials Testing Laboratories

  • Concrete Testing

  • Asphalt Testing

  • Testing of Steel, Concrete, Masonry, and other materials

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Inspections

Inspections

  • Special Inspection

  • Construction Inspection

  • Stormwater Inspection

  • Balcony Bill Inspections

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a building with a lot of different types of buildings

Modular

  • Quality System Auditing & Listing

  • Industrialized Buildings

  • Mobility Vehicle Equipment Evaluations

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Your Reliable Partner Across Industries

Where We’ve Been

Dotted Maps
2,000+
Completed Healthcare Projects
75,000+
Completed Public Works Projects
10,000+
Private and Public Sector Clients
It should be noted, Twining continually met and exceeded the sometimes unrealistic demands placed on your team without any complaints. We would not have completed the project on time and within budget without the professionalism, expertise and the ability of your firm/project team to manage the extremely demanding inspection schedule while frequently being notified with less than 24 hour notice.
Gafcon

Gafcon