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Founded as Maryland Thermoform, Candle Packaging USA, and Quake Scientific in 1984, Mercury Plastics Maryland manufactures custom thermoformed and fabricated plastic parts in Baltimore. Acquired by Mercury Plastics Inc. in 2020, the Maryland operation combines more than 30 years of local experience with vertically integrated, wholly American-made production, taking projects from prototype through manufacturing and shipping. Its work includes specialized applications for government and military customers as well as high-volume consumer packaging, under ISO 9001 Design certification.
Started by Joseph Meriam with his wife and children as the workforce in a 1911 garage operation, Meriam Process Technologies manufactures pressure and flow measurement instrumentation along with test and calibration equipment. The company’s original U-tube manometers grew into a broad process-measurement business, including digital manometers and its MFC5150 HART communicator, which reads device descriptions without translations or subscriptions. Meriam is now a Western Enterprises company and remains part of the Scott Fetzer Company heritage described in its history.
Meridian Adhesives Group was founded to unite the expertise of multiple adhesive brands under one global organization. Today, its 25 locations include 15 manufacturing facilities and 18 R&D and quality-control support labs serving customers in construction, electronics, industrial assembly, and other demanding markets. The group is also equipped to turn customer concepts into finished products through custom formulation and contract manufacturing.
Meridian Bioscience is a life science company known for supporting clinical diagnostics and laboratory research with tools used to identify disease. Its work serves diagnostic laboratories and researchers through testing platforms and specialized reagents.
Meridian Industrial Group is a Holyoke precision machining company best known for handling large, exacting parts for commercial, aerospace, and defense customers. Operating from 60,000 square feet of machining space, the business traces its roots to a foundry and blacksmith shop established in 1881 and also takes on smaller components and prototypes. Its quality system is certified to ISO 9001:2015 and AS9100D standards.
Established in 1997, Meridian Machining, Inc. is a Kettering shop known for tight-tolerance work and responsive service. Its engineers and machinists support aerospace, automotive, and medical customers with prototype and production machining, backed by ISO 9001:2015 certification and NIST-traceable quality equipment.
Founded in 1937, Merit Brass Company is a fourth-generation family-owned manufacturer and master distributor of flow-control piping connections, headquartered in Cleveland, Ohio. It identifies pipe nipple manufacturing as a long-standing specialty and serves wholesale distributors through a five-location U.S. network.
Founded in 1967 as A P Products, Meritec is a Painesville, Ohio manufacturer whose nearly six decades of work have centered on solving difficult electronic connectivity problems. It designs high-speed, high-density connectors and cable assemblies for embedded-computing customers, with a particular history in aerospace and defense and automated test equipment.
Near Columbus, Merlin Packaging Technologies custom-fills and packages adhesives, sealants, lubricants and other liquid products for industrial customers. Its 50,000-square-foot factory and warehouse supports both small and large orders, with application engineers helping develop packaging for everything from simple containers to specialized two-component systems. Merlin also handles practical follow-through such as inventory warehousing, custom labeling and hazardous-material shipping.
For more than 90 years, Merlo Energy has built its identity around employee ownership and practical technical expertise in the systems that keep facilities running. The company supports industrial and institutional customers with energy audits and responsive guidance aimed at reducing waste, improving safety, and maintaining reliable operations across a 14-state regional network.
Founded in 1948 by the Merryweather family in an Akron suburb, Merryweather Foam remains a family-owned manufacturer of custom foam components and converted foam products. From its Barberton headquarters and additional U.S. facilities, the company uses CAD-driven CNC cutting and other in-house fabrication capabilities to support applications ranging from medical components to automotive sealing and industrial packaging. Its long experience is paired with ISO 9001:2015 and ISO 13485:2016 certifications for quality and medical-device manufacturing.
MES Life Safety supplies fire and life-safety equipment and provides related services to emergency responders and safety professionals. Its MES Uniforms operation produces customized uniforms, with production and quality teams and tailors and embroiderers serving departments across the country. The company says it has spent decades working alongside personnel in the field and serves departments in the United States and Canada.
From its Columbus-area headquarters, MES, Inc. produces precision metal components while managing the global supply chain that moves them from tooling and production to inspection and just-in-time delivery. Its distinctive model puts MES engineers and quality specialists inside partner factories across eight countries, giving OEMs one accountable relationship instead of a collection of suppliers. MES has been ISO 9001:2015 certified since 2009 and is recognized as an NMSDC minority-certified company.
Mesa ETP, originally Mesa Rubber Company, has manufactured specialized products for the petroleum and aboveground storage tank industries since 1967. Its manufacturing headquarters is in Cincinnati, Ohio, and the company describes itself as woman-owned; its custom-engineered tank products are supplied to customers around the world.
Ashland-based MESH Solutions helps manufacturers modernize production through integrated automation, robotics, engineering, and smart-manufacturing systems. The company works across a project’s lifecycle, from research and prototyping through custom fabrication and turnkey implementation, while using more than 75 years of combined experience to help manufacturers add capacity and improve existing operations.
Founded in 2000 from Qingdao University of Science and Technology, MESNAC Co., Ltd. builds rubber machinery and smart-manufacturing systems for tire and rubber producers. Its work spans equipment through smart-factory integration, with a global network supporting customers in more than 60 countries and regions. MESNAC also develops rubber-related new materials and operates a substantial research program, including eight major R&D institutions and national engineering research centers.
Formed in 2019, Messer Americas produces and supplies industrial and medical gases as part of Messer Group, which the company identifies as the world’s largest privately held industrial gases business. It operates more than 150 production facilities and has over 5,000 employees across the United States, Canada, Brazil, Colombia, and Chile. The company draws on more than 125 years of industrial-gas expertise and serves customers across North and South America.
Founded in Portland, Maine, in 1899 as a one-man blacksmith shop, Messer Truck and Van now builds and installs custom equipment that turns trucks and vans into work-ready vehicles. The fourth-generation, family-owned company has evolved from making wagons and early truck bodies to supporting individual work vehicles and standardized commercial fleets across Maine and Ohio. Its long-running connection to the trade is reflected in a 125-year history and a hands-on process that includes in-house installation, inspection, repairs, and fleet support.
Since 1899, Messer Truck and Van has transformed commercial trucks and vans into work-ready vehicles through custom upfitting, installation, and ongoing equipment support. Founded as a one-man blacksmith shop in Portland, Maine, the company remains fourth-generation and family-owned under Walter A. Messer’s great-grandson, Jeffrey Messer. With operations in Maine and Ohio, Messer serves individual businesses and fleets while maintaining a distinctly community-oriented, hands-on approach.
With more than 80 years serving HVAC fabricators, Mestek Machinery is a Cedar Rapids manufacturer known for building metal-forming equipment for sheet-metal ductwork. Its four established brands combine more than a century of experience, while the company supports duct shops with a nationwide service network and authorized dealers across the United States and Canada.