DOTec Engineering –

Trusted. Licensed. Nationwide.

Civil • Structural • MEP • Forensic • 3D Scanning • Product Development

Since 1991, we’ve delivered fast, cost-effective, and high-quality engineering solutions across the

United States, as we are licensed nationwide

DOTec Engineering –

Trusted. Licensed. Nationwide.

We are an American company based just outside of St. Louis, home to a talented team of over

40 in-house engineers specializing in Structural, MEP, and Civil disciplines.

We’re licensed in all 50 states, and most projects are completed with a typical turnaround of

10–15 business days (complexity can affect timing, of course).

If you’re ready to bring your ideas to life, fill out the form, and we’ll be

happy to chat about your project and how we can help.

About DOTec Engineering

Licensed Nationwide | Trusted Since 1991

DOTec Engineering is a multi-disciplinary, licensed nationwide engineering firm headquartered in St. Charles, Missouri. Since our founding in 1991, we’ve helped clients across the public and private sectors with reliable, cost-effective, and high-quality engineering solutions — serving the entire United States from coast to coast.

What sets DOTec apart is our commitment to precision, personalized service, and long-term partnerships. With a team of licensed engineers, including multiple PhDs and industry specialists, we bring deep expertise to every project — whether you're developing new infrastructure, scanning an existing structure, or launching a new product.

Why Choose DOTec Engineering

Licensed Nationwide

Trusted by public & private clients across the U.S.

Experienced & Reliable

Decades of success with 95%+ repeat clients

All-In-House Expertise

Civil, Structural, MEP, Forensic, 3D Scanning & Product Development

PhD-Level Engineers

Delivering fast, high-quality, and cost-effective solutions

Get Your Project Moving — Request a Free Quote