Defiance Testing and Engineering: Detailed Company Information & Corporate Profile
Summary
Defiance Testing and Engineering is a U.S.-based engineering firm headquartered in Troy, MI, operating as a subsidiary with 100‑200 staff and annual revenues between $10 million and $50 million. The company serves the Detroit metropolitan market (DMA code) under SIC 7380.
It specializes in real‑time simulation, fatigue and durability testing, safety assessments, data acquisition, noise and sound quality evaluations, simulated environments, heat management, test plan development, and facilities management. These services enable clients to validate product performance under realistic conditions and optimize engineering design across various sectors within the broader engineering industry.
Key personnel include Program Manager Charles Carpenter; Senior Financial Analyst Lisa Lyskawa; Senior Test Technician Stanley Majdan; Engineering Supervisor Ron Shreeve; Project Leader Dave Randall; Account Manager Dave Sienkiewicz; and Senior Applications Engineer Jim Walsh.
| Defiance Testing and Engineering Website | defiancetest.com |
| Phone Number | 1-248-458-5900 |
| Industries | |
| Defiance Testing and Engineering Headquarters Address | 1628 Northwood Drive, Troy, MI, 48084 US |
| Company Size | 100-200 employees |
| Specialities & Services | · Real-Time Simulation · Fatigue · Durability · Safety · Data Acquisition · Noise & Sound Quality Evaluations · Simulated Environment · Heat Management · Test Plan Development · Facilities Management |
| SIC Code | 7380 |
| DMA Code | Detroit Metropolitan Area |
| Estimated Annual Revenue | $10M - 50M |
| Operating Status | Subsidiary |
| Updated: | 2026-10-05 |
Estimated Website Traffic
The chart shows a decline in traffic to the defiancetest.com website. In September, traffic decreased to 2602, compared to 29168 in the previous month. The highest traffic in 2026 was recorded in April, reaching 215740 visits.
Workforce Turnover
Length of Employment
Defiance Testing and Engineering's workforce includes employees across a wide range of tenure levels.
100% have been with the company for more than 11 years
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Defiance Testing and Engineering Corporate Information: FAQ
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