Find engineering consulting firms by capability and location.

Ruggedized product engineering for the field and the future.

Engineering Excellence + Inspiring Innovation

Contract Manufacturing - Specializing in Medical & Aerospace Technologies

Clark Nexsen is a transdisciplinary architecture and engineering practice founded in 1920, with nearly 400 employees across nine offices. It joined JMT in 2025. It provides architecture, civil, structural, mechanical, electrical, fire protection, process, and transportation engineering services to clients in education, defense, government, healthcare, commercial, and infrastructure markets across the United States.

From prototype through production.

Engineering Solutions Exceeding Expectations

Specialty Manufacturing Solutions

Automation Starts Here

Engineering Precision Into Every Solution

From paper to prototype

Engineering, manufacturing, and workforce solutions

Engineering Services for the Aerospace and Defense World

Solve your toughest engineering and manufacturing challenges

Advancing the State of Hybrid and Electric Marine Vehicles

In business since 1995, Rock Engineering is a dedicated team of talented mechanical engineers, manufacturing engineers, designers, and project managers skilled in the areas of product and process development, project management, and consulting. As a contract engineering service company in South Windsor Connecticut, our staff is available for both short or long-term assignments, either on-site or remote. Our mission is to utilize technology, creativity, and communication to deliver the finest mechanical engineering solutions for our customers.

Moving automation forward.

Providing Engineering and Product Development Expertise

Sigma Design Company, LLC is a product design, engineering, and contract manufacturing firm founded in 1999 and headquartered in Middlesex, New Jersey. It operates from a 20,000-square-foot Technology Commercialization and New Product Manufacturing Center and serves global manufacturing clients across industries including health and life sciences, food processing, clean energy, industrial water, marine, and defense. Core capabilities include mechanical and electrical product design, new product development, design/build manufacturing, custom machine manufacturing, build-to-print fabrication, and advanced engineering analysis and simulation. It employs licensed professional engineers in New York and New Jersey and has delivered over 1,000 design and design/build projects. A subsidiary group, Sigma Industrial Water Group, develops patented filtration and water conditioning systems for industrial water and non-hazardous wastewater applications.

CAD/CAM/CNC Integration and Model-Based Enterprise Engineering

Delivering high-quality engineering and professional services in support of the Navy's mission

Providing Innovative Engineering Solutions