Our Mission
Our mission is to deliver reliable testing, inspection, geotechnical, and environmental services that help our clients build with confidence. With a focus on quality, responsiveness, and technical precision, we support safe, compliant, and successful projects across Arizona. For PTI, this means being responsive, detail oriented, and reliable at every stage of a project. We focus on giving clients clear results, trusted technical support, and timely service so they can move forward with confidence.
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Serving Arizona Since 2001

Founded in Phoenix in 2001, PTI is a locally owned, family-operated company with deep roots in Arizona’s construction industry. For more than two decades, we have built our reputation on experience, integrity, technical expertise, and long-standing relationships with the people and organizations we serve. Our growth has been driven by a commitment to quality, responsiveness, and doing the job right.
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As an AASHTO-accredited laboratory and WBENC-certified business, PTI combines established technical standards with the accessibility, accountability, and personal attention of a local company.
3,000+ Projects. 25+ Years. One Trusted Partner.
When site conditions don’t match the plans, you need a partner who knows what to look for and how to respond. PTI brings decades of experience, responsive field support, and reliable testing and inspection to every project.
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From laboratory testing and field inspections to engineering support, we provide the clear, timely information teams need to verify quality, identify issues early, and keep projects moving forward.

Certifications & Credentials
We maintain recognized certifications and accreditations that support the quality and reliability of our work.

Woman Owned Business
WBENC CertifiedÂ
Certification Number: WBE2300562
AASHTO Accredited Laboratory
PTI maintains AASHTO accreditation
for laboratory testing services.

Key Highlights
Founded in 2001
Phoenix Testing & Inspection LLC is a professional corporation founded in 2001.
Located in Phoenix, AZ
The company was founded in Phoenix to meet the needs of our client community throughout Arizona.
3,000+ Projects
PTI has provided services on over 1,500+ of projects ranging from single family residences to large industrial complexes.
Our Values
Quality & Accuracy
We are committed to delivering precise testing and reliable results that meet industry standards and project requirements.
Integrity
We operate with transparency, accountability, and professionalism in every project we undertake.
Client Focus
We work closely with our clients to understand their needs and provide practical, dependable solutions.
Attention to Detail
Every test, inspection, and report is carried out with a high level of care and technical precision.

About Us
A trusted provider of testing, inspection, and engineering services across Arizona.