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From its Cincinnati shop, Motolight makes motorcycle auxiliary riding lights designed to help riders see the road and stand out to traffic. Proudly made in the USA, its fork-mounted lights form a distinctive triangle of light and are used by more than 100 law-enforcement departments across North America. Motolight backs the lights with a three-year warranty and supports installation across virtually every type of motorcycle.
Since 1958, Middlefield’s Mouldings One has milled custom architectural millwork and supplied wood mouldings for home and commercial projects. Its craftsmen can reproduce historically accurate profiles from sketches, blueprints, or existing samples, supported by a showroom and architectural library devoted to traditional and contemporary millwork. Mouldings One is a division of the Hardwood Lumber Company and also provides priming and custom prefinishing through an on-site finishing lab.
Born in 1994 from displaced EG&G and DOE workers at the Mound site in Miamisburg, Mound Manufacturing Center is a Dayton precision machine shop making custom parts, assemblies, and fabricated machinery. The company handles work from prototypes through small production runs, including demanding jobs involving exotic and space-flight materials, with customers invited to follow their parts from start to finish. It is certified to ISO 9001:2015 and operates advanced multi-axis CNC equipment alongside specialized inspection and grinding capabilities.
Founded in 1996 at the former Mound Laboratories site, Mound Technical Solutions builds tritium and carbon-14 collection instruments along with specialized test-and-measurement systems. Its work grew from the Mound Labs-developed Bubbler technology, and the Miamisburg company now combines that radiation-monitoring heritage with custom engineering, instrumentation, and fuel-cell gas analysis services for customers worldwide.
Mowry Enterprises, Incorporated supplies new, used and rebuilt heat-treating equipment, pairing furnace procurement with engineering and turnkey installation. The Massachusetts company is particularly distinctive for re-manufacturing existing furnaces with updated hot zones, controls, plumbing and pumps, and for developing complete heat-processing systems around a customer’s process. Its work spans process development, equipment specification and metallurgical analysis rather than stopping at the furnace sale.
From its Elyria facility near Cleveland, MP Antenna designs and manufactures patented multi-polarized antennas and RF hardware for reliable connectivity in challenging non-line-of-sight environments. The privately held company develops standard and custom solutions under one roof, taking projects from concept and prototyping through testing, validation, and production. All products are made in the USA, with an ISO 9001 quality system supporting applications ranging from public safety to transportation communications.
With more than 100 years of experience, Mpac Group plc designs and builds intelligent automation and packaging systems for manufacturers worldwide. Its four specialist businesses combine precision machinery, line integration and lifecycle support, with more than 10,000 machines in service across over 80 countries. The group is particularly distinctive for bringing processing, packaging and robotic end-of-line expertise together under one network.
With roots reaching back more than 120 years, MPB Print & Sign Superstore produces printed materials, signs, wraps and branded apparel for businesses and organizations across the region and beyond. Based in Morgantown with a Waynesburg location, the company combines digital and offset printing with mailing, fulfillment and online ordering, while its G7 certification supports consistent color from one project to the next.
MPC Plating began as a metal-plating operation more than 60 years ago and has spent over four decades focused exclusively on plating plastics. Based in Brooklyn, Ohio, it is a flexible job-shop partner for manufacturers whose plastic parts require carefully controlled decorative or protective finishes, with an IATF 16949-certified operation and on-site testing laboratories.
MPI Label Systems produces custom printed labels and labeling products, and also supplies labeling equipment. The company reports 11 locations nationwide and more than 500 employees; its site describes over 58 years of experience in the label industry. It also provides thermal label printing and labeling-equipment repair and technical services.
Founded in 2005 by Mike Stein, MPS Manufacturing Co. LLC makes custom molded rubber and silicone parts, including rubber-to-metal and rubber-to-plastic assemblies, in New Philadelphia, Ohio. The employee-oriented company designs and builds its own molds and equipment, pairing more than 40 years of combined rubber-industry design experience with robotic-assisted assembly and process controls. MPS sources all of its materials in the United States, with 90% coming from Ohio, and also produces Fuseall, its self-fusing silicone wrap.
Founded in May 1992 by Bill Armstrong Sr. and his son, MPT Fastener Corporation supplies fasteners and electronic hardware, with a particular focus on hard-to-find and specialty parts. The Macedonia, Ohio, company serves subcontractors and manufacturers with items made to customer requirements, including parts for medical-device applications. MPT became incorporated in 1996 while retaining its original emphasis on serving customers of every size.
MPW Industrial Services, Inc. is a family-owned-and-operated industrial services company founded in 1972 that provides industrial cleaning, water treatment, and site-management work across North America. It develops and fabricates custom equipment and automated tooling in-house, including hands-free water-jetting technology, and supports industrial facilities through field services and mobile water-purification systems.
MQM Solutions, Inc. provides decontamination solutions, with F3C FR Decon identified as one of its offerings. The company presents its work around developing a practical solution for customers’ decontamination needs.
Founded in 1976 by Pat and Carol Meehan in their Cincinnati basement, MR Label Co. manufactures custom labels for packaging, industrial, OEM, and regulated applications. The family-owned company remains in the hands of the Meehans’ children and operates from a 19,000-square-foot Cincinnati facility with printing and finishing handled in-house. MR Label has been a UL Authorized Label Supplier since 1986 and serves customers across the United States and internationally.
Family-owned since 1991, MRF Machine and Hydraulics is a Kent, Ohio manufacturer whose cylinders have become original equipment on heavy-construction attachments. It serves OEM customers with custom fluid-power components and precision-machined parts, producing everything from individual components to complex assemblies.
Born in 1976 from Fred Olivieri’s construction business, MRO Built manufactures custom architectural fabrication and store fixtures for retail, restaurant, and commercial spaces. From its North Canton facilities, the company combines experienced craftsmen with modern production and manages projects domestically from design through installation. Its 100,000-square-foot manufacturing, warehousing, and office operation supports both one-off work and nationwide fixture rollouts.
MRP Solutions makes injection-molded plastic closures, jars and related packaging components, with every closure and jar manufactured in the United States. Founded in 1976 as Mold-Rite Plastics in Plattsburgh, New York, the company now draws on the combined heritage of Mold-Rite, Weatherchem and Stull Technologies, including more than 70 years of packaging manufacturing experience. Its in-house engineering and tooling team develops customized solutions, while its facilities follow GMP guidelines and hold ISO 9001:2015 and FSSC 22000 certifications.
From its Dayton, Ohio location, MRS Electronic, Inc. develops and manufactures rugged vehicle electronics alongside custom hardware and embedded software for automotive and other mobile equipment applications. The company traces its roots to 1971 and has spent more than 20 years developing controllers, CAN-based systems and telematics products, with a particular focus on cybersecurity-capable 32-bit electronics and customer-specific engineering. MRS supports customers through eight international locations and partner network, while its German operations hold ISO 9001 and IATF 16949 certifications.
MRSL is an employee-owned company whose developers and researchers build software for the U.S. Intelligence Community and Department of Defense. Based in Sarasota, Monterey, and Dayton, it works on difficult mission applications involving real-time signal processing, with laboratory and government-approved development space supporting its work.