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The MISTRAS Group is one of the leading global providers of proprietary, technology-based, nondestructive testing solutions that are used to evaluate the structural integrity of industrial and public infrastructures. The group designs and manufactures acoustic emission sensors and measurement instruments. Its products are used in several applications, such as railroad tank cars, tank bottoms, electronic components, high-pressure tubes and tube trailers, and pressure vessel testing and pipeline and weld monitoring systems. The group s products include sensors, amplifiers, accelerometers, accessories, power supplies, switch boxes and display monitors. Its subsidiaries include Physical Acoustics, Physical Acoustics Beijing and Physical Acoustics South America. The MISTRAS Group has a staff of more than 1,500 employees in over 45 offices in nearly 15 countries.

Skyline Engineering is a full-service professional engineering firm in New York City, offering a unique approach with four specialized divisions. With a focus on serving clients in New York City and beyond, Skyline Engineering provides comprehensive engineering services to meet a variety of needs. Generated from their website's infomation

DeSimone Consulting Engineers provides structural engineering services to architects, owners and developers. Founded in 1969, the firm employs more than 150 employees. DeSimone Consulting Engineers is located in New York City and has several offices located throughout the United States, including San Francisco, Las Vegas and New Haven, Conn. It offers structural analysis and design services, including guidance, maintenance schedules and resources to meet its client's needs. It also offers a variety of other services, such as structural design, construction, prepurchase, due diligence, feasibility studies, forensic engineering, sustainable design, base isolation, damping consultation, performance-based design and risk assessment services.