Engineers in Jefferson County, MO

Comprehensive list of Jefferson County, Missouri based civil, mechanical, electrical, chemical, structural and environmental engineering companies & consultants.

Jefferson County, MO

Business Listings

And we never lose sight of that distinction. We haven't just created a turnkey land services and construction resource-we've built that resource totally around the requirements of the client. That is why we provide a complete range of services-from site planning and preparation to environmental services to complete construction services. We have nearly 100 plans for you to view!


D. I. Y. Engineering is dedicated to bringing you quality water purification products at a price you can afford. Products designed so that the homeowner can assemble and / or install them themselves. About us D. I. Y. Engineering is dedicated to bringing you quality water purification products at a price you can. Laser Filters Water filter cartridges for lasers and laser chillers.


JTL provides practical expertise in wastewater / water engineering to consultants, municipalities and districts, and private entities. We specialize in identifying and implementing optimal wastewater/ solutions that are tailored for our clients’ specific needs. We provide a technical offering focused within our core competencies, with the use of additional expertise from a network of partners as appropriate



Founded in 1995, EPIC Modular Process Systems is a St. Louis, MO based engineering & fabrication company providing pilot plant & production scale modular process plants & systems. Combine your process technology with EPIC's modular process design/ build approach. We average 24% savings over traditional construction.


EDM Incorporated is a 37-yr old multi-discipline engineering and architecture serving a diverse client base on complex to less complex projects using the latest in techonolgy and the brightest staff found in the industry. Our services include structural engineering, civil engineering, mechanical/electrical/plumbing engineering and architecture. We've been a part of the St. Louis area's most prominent


Prove your technology faster with a pilot plant from EPIC. We are a pilot plant manufacturer that engineers process systems in various sizes, primarily pilot plant modules, demonstration plants, and commercially sized systems. Our scale-up experts have over 20 years of modular scale-up experience. They will work with your process technology to design and build a proven turnkey process system.


Since 1980 the team at AmeriStructure, Incorporated has offered high-quality structural engineering and CAD services for Architects, Design/Build Firms, Contractors and Owners. As an alternative to huge engineering companies, we currently have filled the need for every-day, mainstream kinds of engineering projects: office buildings, schools, churches, grocery stores, retail centers, banks, pre-engineered


Engineered Lifting Systems is a distributor in the industrial lifting market, delivering professional design, sales and service to clients searching for knowledgeable and expert applications assistance for their specific requirements for cranes, hoists, crane components and crane controls.


Weis Design Group was established in 1969. We supply municipal, architectural and engineering services to municipalities throughout the states of Missouri and Illinois. We value our clients and supply individual attention.


Established in 1987, the expertises of the professional services offered have enabled Stock & Associates Consulting Engineers. to serve National customers with various requirements. Clients expect a top standard of service, and Stock & Associates Consulting Engineers.'s staff combine a cross section of civil engineering, environmental, and field experience to provide personalized, cost effective services.


At Advantage Engineering we specialize in electric transmission, distribution, substation, gas and drafting design disciplines. We are an American owned company with headquarters situated in West St. Louis County. AE is a Licensed Professional Engineering Consulting Firm whose technical staff have many years of knowledge performing electric utility design and drafting projects.


Since founding Vestal Mechanical, Mr. Vestal was fortunate to work as an engineer, project/construction director, and ultimately as a senior director with one of the biggest global engineering, architecture, project/construction management firms in the world.


HT/DcR Engineering is a very skilled and professionally staffed complete service engineering company with a proven track record of providing quality results. Our staff comes equipped with extensive knowledge of project development, process management, engineering design, and industrial automation.


We specialize in the design and specifying of repairs to non-domestic concrete structures, from parking garages to huge storage tanks. We conduct surveys, design and manage the repair of your concrete structure. With over 45 years of engineering and construction experience, we're uniquely qualified to assist you with your engineering projects.


The Richardson Engineering Group has offered design and forensic investigation services to customers throughout the country for more than twenty five years. Headquartered in St. Louis, we blend a top standard of expertise honed on major projects with our relationship-based approach to doing business.


Thank you for taking time to learn more about our company. We are dedicated to performing our services to the best professional standards, in a socially and ethically responsible manner, to the satisfaction of our customers and their customers. Immediate employment opportunity for structural engineer with Illinois SE license.


Frontenac Engineering and Pitzman's Company are conveniently situated in Maplewood Missouri. Our commitment to accuracy and outstanding standard of service allows our customers to execute their projects on-time and on-budget. We have extensive experience dealing with businesses, municipalities, institutions, and real estate developers. Our focus is Civil and Structural Engineering and Land Surveying.


Turnell Corp. is a multidisciplinary engineering company focused on developing projects and solutions for industrial facilities. Our philosophy is to establish long term relationships with customers and suppliers. By doing so, we supply a consistently higher quality service to our customers and gives us a platform for growth.


EFC-International is a global supplier of specialty engineered component parts including clamps, panel fasteners, specialty nuts and more! With over twenty five years knowledge, EFC is a proven market leader, providing OEM and Distribution markets the most complete line of performance enhancing, cost-effective specialty metal, plastic, electrical and assembled component parts ever.


View projects in process, check test results and access relevant information. Geotechnology celebrates its anniversary with a new community project. Green design and possible credits for reducing stormwater runoff are factors. Now inspect steel welds and parts more efficiently and supply better data. Geotechnology has consistently produced results that exceeded my expectations.