Engineers Specialized in:

  • Machine & Mechanism Design

  • Advanced FE Analysis

  • Turnkey Industrial Equipment

  • Solar Tracker Systems

Welcome to Proof Engineering Co.

We are a mechanical engineering and design services company specialized in the areas of: custom machines, advanced FEA, industrial equipment, specialty vehicles, and solar tracker systems. We are located in Gilbert, Arizona, minutes from metro Phoenix.

Company Services


Machine and Mechanism Design

Proof is experienced in many types of mechanical systems, subsystems, and components in a variety of industries.  From manufacturers to entrepreneurs, proof engineers work to understand the needs of its customers.  Mechanical products such as cargo handling equipment, construction machinery, engine components, and weapon systems all have benefited by Proof’s expertise. (read more)


Specialty Finite Element Analysis

Proof Engineering performs Finite Element Analyses requiring special knowledge to accurately predict the performance of products and processes. We effectively solve structural, thermal, fluid and multi-disciplinary engineering problems through state-of-the-art, high-end computer technologies such as LS-DYNA and Nastran. These tools are applicable to real world problems in a variety of industries. (read more)


Turnkey Industrial Equipment

When off-the-shelf solutions are unavailable, Proof Engineering can design industrial tools and machines quickly and efficiently from the ground up.  Several recently completed projects include: automated laser marking machines for the mining industry, a semi-automated fabric peeling machine, and part sorting and identification marking machine. (read more)


Solar Tracker Systems

Having completed various utility scale solar energy projects, the team at Proof Engineering has the experience and capabilities to help our customers compete in the solar market. Systems that we have designed include: ground mounted fixed and tracking systems, and garage top tracking systems. We are involved in most stages of the development includin:, plant layout, structural engineering, CAD design, and permitting. (read more)

Mechanical Engineering

Industrial Tie Down

New, industrial tie down for heavy-duty applications

mechanical engineering services

Finite Element Analysis

Frontal Impact Model

LS-Dyna used to model frontal impact

New Product Development

Telemetry Device

Working with entrepreneurs to develop their ideas

What we do

We are engineering problem solvers who can help you to:

  • Develop or improve on products
  • Reduce manufacturing costs
  • Resolve technical issues
  • Investigate and correct failure
  • Design test and validation programs
  • Comply with safety regulations
  • Enhance FEA and CAD capabilities

Our Specialties

  • Solar energy projects
  • Material handling equipment
  • Manufacturing automation
  • Specialty vehicle design
  • Transportation seating systems
  • System integration
  • Design for manufacturing
  • Functional prototypes
  • Jig and fixture design


Brochure Download


newsletter Newsletter Download


newsletter Our Linkedin Page


newsletter Join us on Facebook


newsletter Youtube


Newsletter Signup

Client Testimonials

Southwest Solar: President and CTO


Proof Engineering has been our best choice for economical design of structures and mechanisms for our solar research and development activities.  They provide us with a unique combination of mechanical and structural design and analysis with fabrication and parts sourcing experience, and the ability to document and PE stamp for third party review.  I think the service from Proof Engineering is much more economical than us doing this work internally, or using a larger firm with higher internal costs.

Home | Structural |Mechanical |CAD| New Product Development | Prototyping

Proof Engineering Co. | 1135 N. McQueen Rd. Suite 131 Gilbert, AZ 85233 | (480) 478-0041