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MD
Founded in 1915 by J.A.L. Walman, a jeweler, optometrist, and optician, Walman Optical grew from a heritage of craftsmanship and attention to detail. It provides optical laboratory services and business support to independent eye care practices, describing its lab network as nationwide.
Founded in 2002, Maryland-based Walpanel Inc. manufactures prefabricated exterior wall panels under its Wallshell brand, specializing in fiber-cement façade systems for commercial and residential construction. Drawing on more than two decades in exterior cladding and panel prefabrication, the company says its production has surpassed 100 million square feet and uses in-house CAD, BIM and CNC manufacturing to prepare panels for faster installation. Its products are ICC-ES certified and made under ISO 9001 quality-control methods.
Walter N. Yoder & Sons, Inc. is a family-owned industrial and commercial contractor providing sheetmetal fabrication, pressure-vessel and steel-tank fabrication, mechanical contracting, commercial HVAC, industrial piping, and millwright work. Its fabrication operations include custom sheetmetal work, pipe and ductwork fabrication, and miscellaneous metals for industrial and commercial clients.
Since its founding in York in 1989, Walton & Company has grown from a six-person startup into a regional mechanical contractor with roughly 250 employees. The company is known for keeping design, fabrication and service connected under one roof, giving commercial and industrial clients a single team accountable for a system’s long-term performance. Its workforce averages more than 10 years of tenure, and its current president, Jason Hamme, began with the company as a plumbing laborer in 1997.
At a Laytonsville farm whose roots reach back to a 1932 Maryland summer camp, Waredaca Brewing Company makes beer in a setting still shaped by horses, family and agriculture. The Butts family has kept the property in the same location since 1953, and the brewery reuses an existing farm building while working to reduce waste and water use. Spent grain goes to a local farmer or the farm’s compost, reinforcing Waredaca’s long-running stewardship of the land.
Warner Air, LLC, maker of WACO industrial fans, traces its engineering lineage to aircraft-propeller specialists who began designing industrial fans more than 70 years ago. The company was formed in 2002 when Mike Warner and two partners purchased the industrial fan division of Washington Aluminum, and it is known for the Whispr® Blade developed by the WACO team in the 1990s. Warner Air manufactures and ships fans from its own operation, with custom units sometimes completed in a day and serialized, in-house production using North American materials.
Founded in 1987 by Chris and Eve Washburn after their two-year cruise aboard a Krogen 42, Washburn’s Boat Yard is a full-service marine repair facility in Solomons serving boats on the Chesapeake. The yard is devoted exclusively to service rather than marina amenities, with career technicians, two 75-metric-ton travelifts, and a 30-ton crane supporting work from repairs to repowering. Eric Skow, who joined in 2002 after a career at Eastman Kodak, has been the sole owner since 2019.
For more than two decades, Washington Glass School has been a community-centered home for artists and students exploring glass in the Washington, DC area. Its Mt. Rainier studios provide hands-on instruction for beginners and experienced artists, while affiliated public-art work extends that shared practice into civic spaces such as Bladensburg Library.
Formed in 1938 by Royden H. Wood, Washington Wilbert Vault Works makes burial vaults and cremation urn vaults while providing burial services for the greater Washington, D.C., metropolitan area. One of Wilbert’s earliest licensees—number 13—the Laurel, Maryland, company is now owned by Royden H. Wood III and Christopher J. Wood and also supplies cremation urns and Redi-Rock retaining walls.
Founded in 2008 and based in the Washington, D.C. area, WD Advanced Materials manufactures fully traceable, U.S.-made chemical vapor deposition (CVD) diamond substrates and thin films for advanced technical applications. The company grew from pioneering laboratory-grown gemstone production into a materials specialist focused on electronic, quantum, and optical-grade diamond, supported by exclusive worldwide rights to single-crystal CVD technology secured through the Carnegie Institution for Science in 2011. Its patent-protected processes and established infrastructure support repeatable commercial production of purpose-built diamond materials.
WDI WORKS provides custom window treatments and upholstery, including blinds, motorized shades, shutters, custom drapery, roman shades, top treatments, bedding, and commercial seating. It offers specification, project management, upholstery workroom services, and installation for the architectural, design, healthcare, senior living, hospitality, and residential markets.
Weakness For Sweetness pairs Jamaican cooking with custom cakes made fresh on site, giving Greenbelt diners both hearty Caribbean meals and made-to-order desserts under one roof. Its cake gallery showcases personalized creations made by customer request, while the kitchen also caters events and offers Jamaican favorites such as jerk chicken and oxtail.
Since 1999, the Weaver family has built custom sportfish yachts in Tracys Landing, shaping each vessel around the owner’s input from project design through construction. The company’s builds range from bay boats to its largest yacht, the 97-foot “18 Reeler,” with a long record of completed vessels and an emphasis on hands-on craftsmanship and customer relationships.
Wecost Inc. is a Bethesda-based government contractor known for supporting government agencies, large companies, and DOD and military contracts. The company manufactures drones and helps clients manage the operational demands of federal contracting.
Founded in 2008, Weinberg Medical Physics is a medical-device incubator developing compact MRI systems, magnetic-particle technologies and related therapies for clinical use. Based in Rockville, the company combines ultrafast MRI with low-power electropermanent magnets and engineered nanoparticles, turning its work into self-sustaining ventures such as Promaxo, Radialis and Brain Biosciences.
Founded by Bruno Weinschel, Weinschel Associates designs and manufactures broadband RF and microwave passive components for commercial and military markets. The company draws on a 40-year legacy while applying modern engineering and production methods, with custom parts available for specialized requirements. Its products are made domestically and sold to customers internationally.
Welch Mechanical Designs, LLC designs and manufactures high-precision optical systems, instrumentation, support equipment, and optomechanical products. Its capabilities include optical engineering, CNC machining, single-point diamond turning, optics production, coatings, integration, alignment, testing, and FAA certification for commercial, military, aerospace, medical, telecommunications, energy, and scientific applications.
Weller Truck Parts traces its roots to Harry Weller’s 1928 auto-parts business in Muskegon, Michigan, and has grown into a 100% employee-owned company with a nationwide distribution network. Since launching its heavy-truck division in 1973, Weller has built its reputation around remanufactured drivetrain components and practical support for fleets and repair shops.
Serving the greater Washington, D.C., area since 1965, Welsh Printing is a Falls Church print shop focused on custom, deadline-driven work rather than printing as an add-on to another business. It handles most projects in-house, bringing printing, design and professional mailings together for businesses, associations and nonprofit organizations. The shop is especially suited to small runs and unusual jobs that other copy shops may send elsewhere, with a team whose combined industry experience totals 60 years.
Wen’s Foods makes tofu, yuba, and seitan in Baltimore using locally sourced non-GMO soybeans and traditional artisanal methods passed down through the family for nearly 400 years. Its plant-based foods use simple natural ingredients without preservatives, connecting an old Chinese tofu-making tradition with Maryland-grown soybeans.