From Impact to Insight

Request an Expert Consultation

Real-World Testing. Real Answers.

Facts Over Assumption

For more than three decades, Billy S. Cox, Jr. has been at the forefront of impact biomechanics and crash test research, and more than four decades in crash investigation and reconstruction. We deliver scientifically grounded analysis in some of the most complex transportation crash cases.

As a nationally recognized expert and ACTAR-accredited reconstructionist, He brings together thousands of forensic field investigations, real-world crash testing, and courtroom experience to provide clear, defensible conclusions. From low-speed impact analysis to full-scale crash testing and reconstruction, his work is trusted by attorneys, insurers, manufacturers, and investigators across the country.


Credentials That Matter

A Company Built on Evidence

  • 40+

    Years in Crash Analysis

    Four decades of hands-on experience and training in reconstruction, including 30+ years of crash testing and biomechanical research

  • #983

    ACTAR Accreditation

    Independently accredited by the leading authority in crash reconstruction.

  • 330+

    Crash Tests Conducted

    Extensive real-world testing with human subjects and anthropomorphic devices.

  • 300

    Hour Study Research Contributor

    NHTSA-Sponsored Research Contributor to a 300-hour study at Johns Hopkins Applied Physics Lab.

  • 3+

    National Networks. One Trusted Voice

    Featured on Discovery Channel, History Channel, and major network broadcasts.

Who We Serve

Trusted by Legal, Insurance, and Media Professionals

Billy Cox Group provides expert consulting and analysis to professionals who require clear, unbiased, science-based answers. Our work supports decision-making, litigation, and production environments where accuracy and credibility are critical.

Request a Consultation

Our Areas of Expertise


Expert Services, Backed by Experience

Why Billy Cox Group

Built on Decades of Real-World Testing

1980s–90s

Our Foundation in Crash Analysis


Early career focused on crash reconstruction, laying the groundwork for decades of technical expertise.

1995–2026

Hundreds of Crash Tests Conducted


Hands-on testing with human subjects and anthropomorphic devices to understand real-world impact dynamics.

1996

Development of the LVIS Crash Lab

Designed and built the Low Velocity Impact Simulator — a mobile crash laboratory still used today.

2001

NHTSA-Sponsored Research

Led a 300-hour study at Johns Hopkins Applied Physics Lab on seat geometry and neck injury correlation

2000s–2026

National Recognition & Testifying Expert

Frequently retained in complex litigation, with work featured in national media and industry presentations.

Today

Courtroom-Ready Analysis

Delivering clear, defensible findings grounded in decades of testing, research, and applied science.

Request an Expert Consultation

Build Your Case on Proven Analysis

When the outcome matters, you need analysis you can trust. Billy S. Cox, Jr. brings decades of real-world testing, research and courtroom experience to every case. His work is clear, grounded in science and unbiased. Start the conversation to see how his expertise can support your case.


Begin an Expert Evaluation Today