Manufacturer Directory
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MD
Rockville-based Meso Scale Diagnostics develops and manufactures immunoassay instruments, assay kits, reagents, and related services for measuring biomarkers in biomedical research and pharmaceutical development. Its S-PLEX platform extends that work to femtogram-per-milliliter sensitivity, enabling researchers to quantify very low-abundance proteins in biological samples. The company’s quality systems have been certified to ISO 9001:2015 and ISO 13485:2016, with the latter covering in-vitro diagnostic product design and development.
Metrea delivers “effects as a service” to national-security partners, combining operated aircraft, mission systems, engineering and training into deployable capabilities. Its airborne work includes more than 7,500 missions and 170,000 flight hours, while its FAA-authorized Aerospace Design group has supported aircraft certification for more than 16 years. The company connects engineers with field operators and maintains ownership of solutions from design through operation, rather than stopping at the prototype.
For more than 25 years, Metro Plating & Polishing has restored and refinished metal pieces at its Kensington shop, pairing plating with detailed polishing for everything from heirlooms to automotive parts. The shop handles both individual projects and trade work, including lamp and lighting restoration and small repairs, and ships completed pieces throughout the United States. Walk-ins are welcome, and service is available in Spanish.
Since 1988, Bethesda-based Metro Printing has produced digital and offset print work for the Washington metropolitan area, pairing in-house graphic design with printing, copying, binding and finishing. Its facility handles both everyday business materials and wide-format signage, while the company also emphasizes personalized service and rapid response for short-run or last-minute projects.
Founded in 1977, Metro Prosthetics is a family-owned and family-run practice that designs, fabricates and fits custom prosthetic and orthotic devices for patients in the Baltimore and Washington, D.C., region. Board Certified prosthetists and orthotists work in an on-site lab and maintain long-term relationships with patients, with the same professional guiding care through fitting, adjustments and rehabilitation. Metro is also one of the few regional facilities offering Direct Socket fabrication, which can produce a prosthesis directly on the limb in about 1.5 to 3 hours.
Born from a local engineer’s idea in Fremantle, Western Australia, MetroCount makes Australian-made traffic counters and analysis software for measuring vehicles, bicycles and pedestrians. Since 1991, its low-power systems have supplied traffic data in more than 135 countries, including through its distinctive pneumatic-tube counters and newer micromobility monitoring technology. The company also provides remote diagnostics and scheduled data delivery, helping road authorities collect dependable information without routine site visits.
Since 1992, MetroMedia Printing Corporation has built its business around serving organizations and individuals across the United States with dependable print work. Its community-minded approach includes directing 5% of profits from each repeat-business client to a nonprofit chosen by that client, while its production uses soy-based inks and recycled acid-free paper.
Founded in 2000, Metropolitan Paper Recycling is a privately owned Brooklyn waste and recycling company serving commercial and institutional customers across New York City. It serves more than 4,000 clients and operates facilities 24 hours a day, six days a week, with a focus on diverting waste from landfills. Metropolitan was also the first waste-removal company to install solar panels on its facility roof and continues investing in recycling technology and greener operations.
Founded by Taylor and Ryan, MF Fire is a Baltimore, Maryland company known for bringing fire science and patented technology to modern wood heat. It makes the Nova Series for people who want an efficient, clean-burning stove without the constant adjustment associated with traditional models, while giving the fire a prominent place in the room.
Born in Baltimore, MFG Toffee & Bark Company makes small-batch toffees and chocolate barks inspired by flavors from around the world. Owner Kathy Filosi Nelson built the business from an old family English walnut toffee recipe, and the woman-owned company remains rooted in Baltimore’s artisan community through local hiring, community events and product donations to medical workers and first responders. Its retail shop and production kitchen in Little Italy offer a local window into the handmade process.
Since 2016, MGE Custom Prints has built its business in Capitol Heights around a simple promise: reliable, carefully handled custom print work. The Prince George’s County company serves local organizations and individuals, with projects moving from consultation and proof approval through delivery or pickup.
What began in Michele’s kitchen nearly 20 years ago is now a Timonium, Maryland bakery making fresh granola and toasted muesli from scratch. Michele’s is known for crispy clusters packed with generous mix-ins, including its original almond-and-vanilla blend and breakfast-inspired Breakfast Nook flavors. Its products are plant-based and made with certified gluten-free organic oats, and the company says it bakes fresh granola daily for distribution through more than 1,300 stores nationwide.
Established in 1991, Michigan Manufacturing International makes produced-to-print components and assemblies while managing the engineering, quality, and supply-chain work that connects global OEMs with production. From its Maryland headquarters, MMI runs four specialized manufacturing plants in India and coordinates operations across six countries, serving as a single interface between customer requirements and factory execution. Its applicable U.S. and India facilities operate under ISO 9001:2015 and IATF 16949:2016-certified quality systems.
Founded in 1975, Microcom Environmental designs and manufactures instrumentation, satellite communications equipment, and data systems for environmental monitoring. The company grew from Microcom Design’s research and development work into a dedicated environmental division, and it remains the prime contractor for NOAA’s GOES Data Collection System receive systems. From its Hunt Valley base, Microcom builds custom, integrated monitoring solutions that carry data from the field through reception and presentation.
Founded in a Tagelswangen garage in 1968, Swiss family-owned Micronel AG develops and manufactures customized high-performance miniature blowers for demanding pressure, vacuum and airflow applications. Its compact fans and blowers are used where reliability matters, including medical ventilation, industry and personal protection, with in-house flow and acoustics laboratories supporting customer-specific designs. Micronel remains family-run under second-generation leadership and has grown to 100 employees across five countries.
Founded in 1997, Elkton-based Micropore packages fine-powder chemistries into solid carbon-dioxide absorbent cartridges for rebreathing and life-support systems. Its patented ExtendAir® and SpiraLithCa® technology replaces traditional granular absorbents in demanding applications ranging from military rebreathers to submarine and medical life-support equipment. Micropore holds ISO 9001:2015 and ISO 13485:2016 certifications.
Founded in 1983 by Martin Bak, Gaithersburg-based Microprobes for Life Science designs and fabricates implantable neural microelectrodes, multichannel arrays, and related systems for electrophysiology research. With more than 30 years of microelectrode expertise, the company is known for tailoring neural interfaces to specialized research applications, including its chronic Floating Microelectrode Array and wireless successor. Microprobes serves research institutions and pharmaceutical and medical-device companies worldwide and is ISO 9001:2015 certified.
Microsphere Material Solutions is a technology-transfer company founded in January 2016 by Avi Edery, John Howard, and Matthew DeMay after the founders identified a need for stronger, lighter foam materials. Based on materials research and development, the company moves early-stage innovations toward commercial and government use, including buoyancy applications for undersea and surface vehicles.
With aerospace work dating to 1945 and space-mission experience reaching back to 1970, Microwave Products Group (MPG Dover) is known for dependable RF engineering in demanding environments. The Dover company designs and manufactures signal-control equipment for aerospace and defense customers, with products also supporting GPS and space applications.
Biologists founded and operate Microwave Telemetry, Inc., a Columbia, Maryland company incorporated in 1991 to advance conservation research through animal-movement technology. Its hand-built tracking devices are made to order for researchers studying birds and fish, continuing a history that began with Paul W. Howey’s first satellite PTT under 100 grams and included the first pop-up satellite archival tag for marine life in 1997.