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Since entering the rubber industry in 1964, MacDivitt Rubber Co., LLC has operated as a direct-to-customer American manufacturer of custom molded and extruded rubber products. Its capabilities include extrusion cross sections up to 14 inches, specialty presses with wide and high daylight openings, and production runs ranging from short orders to large-volume work. Based in North Perry, Ohio, the company serves applications from railroad equipment to marine and construction products while managing manufacturing from start to finish.
Since 1970, Mace® Brand has made personal safety and security products, best known for its pepper sprays and gels. The company traces its origins to a chemical compound invented in 1965 and introduced pepper gel in 2004, while also developing other non-lethal protection products and educational how-to materials. Based in Cleveland, Mace® Brand describes its mission as supporting community and family safety through individual empowerment.
Family-owned Macek Industries is a small Mentor, Ohio, machine shop known for taking on short-run manufacturing work with short lead times. The company produces custom tooling and dies for manufacturers, while its network of outside vendors helps complete parts with additional finishing when needed.
MACH Controls LLC helps manufacturers connect machines, capture real-time data, and build Industry 4.0 infrastructure they own rather than subscribe to. Based in Sylvania, Ohio, the company pairs integration work—including connecting legacy equipment—with management and education services, and offers its own MACH-INE industrial connectivity unit with built-in backup power and networking.
Founded by CEO Jandre TerreBlanche after he saw welding robots sitting idle in U.S. fabrication shops, Mach Machines designs and integrates robotic welding automation for fabricators of all sizes. The Cincinnati-area company focuses on high-mix, low-volume work, pairing custom systems—including large-format gantries—with VC Robotics offline programming software so manufacturers can program and control production independently. Mach Machines also provides installation, training, and ongoing field support from system delivery through production.
MACH3 Machining brings together three established operations—Hall Machine, Alloy Engineering, and J&J Precision Machining—as an AECO company in Cuyahoga Falls, Ohio. Built on decades of hands-on experience, it is known for taking on oversized industrial components that ordinary machine shops cannot accommodate, serving customers across heavy industry and OEM production. Its work centers on large-part machining, with components handled up to 192 inches in diameter and 50 tons in weight.
Since 1994, Machine Concepts has built its identity around solving difficult manufacturing problems from its Minster, Ohio, facility. The engineering-based machinery builder works with manufacturers worldwide, designing custom equipment for demanding metal-processing environments and supporting those installations after they are commissioned.
Founded in 1994 as a family-owned job shop, Machine-Pro Technologies has grown into a Celina, Ohio, CNC precision machining facility with more than 80 CNC machines and approximately 85 team members. The company focuses on short production runs and rapid turnarounds, supporting customers across industries from aerospace and medical equipment to agriculture and material handling. Its machining, assembly, and inspection work is performed under an ISO 9001:2015-certified quality system, with three-shift operations serving customers throughout the United States.
Machined Glass Specialists, Inc. is a custom fabricator and precision machining manufacturer of fused quartz, fused silica, borosilicate, and other glass components. It produces custom windows, discs, plates, and semiconductor-, optical-, laboratory-, energy-, lighting-, medical-, and aerospace-related components using cutting, grinding, polishing, CNC milling, waterjet, and related processes.
Founded in 1985, Machintek is a Cincinnati-area contract manufacturer known for its seasoned craftsmen and build-to-print work for companies around the world. Its 80,000-square-foot Fairfield facility employs more than 80 people on two shifts, and the company has helped design and build custom sleds for the U.S. Bobsled and Skeleton National Teams since 2008.
MACK Industrial engineers OEM piston cup materials and advanced cylinder sleeve technology for oil-free air compressors. The submitted source context also describes engineering design and performance engineering activities.
Mack Industries is a family-owned concrete manufacturer that has made precast products since 1932, originating in Valley City, Ohio, and continuing under three generations of the Mack family. It also produces ready-mix concrete and prestressed hollowcore planks, which it added to its offerings in 2004. Its manufacturing facilities serve a multi-state area, with plants in Ohio, Michigan, Pennsylvania, North Carolina, and Florida.
Founded in 1925 with a single lock nut for North American railroads, MacLean-Fogg is a fourth-generation, family-owned American manufacturer of engineered components and solutions for automotive, industrial and power-utility markets. From its roots in locking fasteners, the company has grown into a global enterprise with more than 3,500 employees and sales exceeding $1 billion, while its original Whiz-Lock nuts remain in production at its Mundelein, Illinois factory. Today, MacLean-Fogg operates through a portfolio that includes Component Solutions, Mallard Manufacturing, OMCO and Threadstrong.
Founded in 1965, MacPherson & Company designs and manufactures custom industrial safety window systems for heavy-industry settings, including protection from extreme heat and impact. The company’s focus grew from protecting steelworkers, with Bruce MacPherson developing the HOOGOVENS™ impact-resistant glass brand and Engineered Window Systems in 1969. Now led by CEO Jane MacPherson, the family company continues that safety-glass legacy from its Warren, Ohio operation and serves industrial and military applications with systems engineered for demanding environments.
Mactac is a pressure-sensitive adhesive materials manufacturer founded about 65 years ago, with roots in roll-to-roll PSA-coated paper and film production. It serves North American customers through an expanded manufacturing and distribution footprint and makes products for labeling, graphics, engineered tapes and laminates, pressure-sensitive sheets, and medical and diagnostic applications.
Since 1925, Mad River Fabricating, Ltd. has forged its Springfield, Ohio, experience into durable shipping and storage containers for military engines and transmissions. Its steel and aluminum Long Life Reusable Containers protect equipment from shock and vibration during shipment to depots and field operations, while an in-house team refurbishes damaged military and commercial containers. Mad River serves all branches of the U.S. military and operates under an ISO 9001:2015 quality system.
Founded in 2015 by transformer-industry veterans, Maddox Industrial Transformer designs, supplies, and remanufactures electrical transformers for commercial and industrial projects. Headquartered in Battle Ground, Washington, the company serves all 50 states through seven U.S. facilities, with more than 400 employees and over 100,000 transformers shipped. Its specialty is shortening the wait for power equipment, combining thousands of units in stock with build-to-spec production and transformer repair, rental, and surplus services.
MadTree Brewing is a Cincinnati brewery that has crafted beer since its founding in 2013, growing from friends brewing in a garage into a company with multiple hospitality locations. It makes craft beer and Sway vodka cocktails, and its purpose combines beverage-making with connecting people to nature and the Cincinnati community.
Since 1946, family-operated Madzay Color Graphics has created original printed products and practical ministry supplies for Jehovah’s Witnesses, including organizers, literature holders and greeting cards. Founded by John and Anna Madzay as a Cleveland printing business, it is now based in Medina and has been owned by Eric and Tammy Madzay since 1997. The company’s long-running designs grew from traditional printing into a specialized mail-order and online business serving a distinct faith community.
Magellan Aerospace Corporation is a global integrated aerospace manufacturer providing complex assemblies and systems to aircraft and engine manufacturers, defence and space agencies, and customers in industrial power applications of aerospace engine technology. It designs, engineers and manufactures aeroengine and aerostructure assemblies and components, and also produces proprietary military and space products and provides engine and component repair and overhaul services worldwide. Its operating units span North America, Europe and India.