Twining, Inc.

Founded as a family

run testing lab, evolved into a multi

office engineering powerhouse.

Headquartered in Long Beach, California, with labs statewide and nationwide reach.

Delivers core services: geotechnical engineering, materials testing, concrete research, and forensic analysis.

Expanded through strategic acquisitions like RADCO and DRP, adding plan review, industrialized

building auditing, and petrography.

Works across sectors: energy, transportation infrastructure, public works, healthcare, commercial, and modular projects.

Pioneers advanced QA/QC programs for asphalt, soils, pavement, and stormwater systems.

Typical projects include power plants, highways, bridges, pipelines, hospitals, schools, and factory

built buildings.

Maintains state

of

the

art accredited labs, mobile units, and instrumentation tech for timely, compliant testing.

Notable for blending century

old legacy with cutting

edge applied research and regulatory consulting.

We always operate with integrity and character.

We sustain an environment that enables great people to do extraordinary things.

Our employees are the most valuable asset both to us and our clients.

We promote innovative thinking as a way of life.

We cultivate and value lasting relationships with our clients and our stakeholders.

Replaces single

use plastic in communal dining; provides washable/recyclable tableware

Encourages avoidance of single

use plastic bags; promotes waste sorting and recycling

Office supplies (e.g., binders, paper clips) are recycled and reused

Prioritizes procurement of certified green products (cleaning supplies, recycled toilet paper, energy

saving AC units)

Maintains green plants and daily/annual office cleanups; reduces use of chemical

heavy products

Promotes ‘Earth Hour’ by turning off lights during lunch hour daily

Advocates for green commuting, energy conservation slogans, and elevator avoidance campaigns