Manufacturer Directory
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MD
Hanover Armory is a Hanover, Maryland firearms maker and shop known for building its own HA-15 rifles and supporting customers with custom firearm work. Its American-made firearms carry a lifetime warranty, while its modern-firearm services are available to owners seeking customization or repair.
Hanover Uniform supplies uniforms and work apparel, combining U.S. manufacturing with production facilities in Mexico and China to serve more than 2,000 customers worldwide. Based in Baltimore, the privately held company represents nearly 400 factories and pairs its broad sourcing network with warehousing and web-based uniform ordering and tracking software.
Founded by first-generation farmers Brian and Vickie on two acres in 2019, Hansel Hill Farm is a Millersville urban micro-farm growing local food and raising animals while welcoming the community for hands-on farm experiences. The disabled combat veteran- and woman-owned farm uses natural, pesticide-free growing methods and turns its working farm into a gathering place through educational programs, seasonal events, and its local Harvest Hub.
Since 2008, Baltimore-based Harbor Designs and Manufacturing has turned early-stage ideas into manufactured products through turnkey design, engineering, prototyping, and production support. The company’s collaborative manufacturing model serves startups, institutions, and multinational brands, with work ranging from medical devices to consumer and transportation innovations. Harbor operates a 45,000-square-foot cGMP facility with a clean room and warehouse and holds ISO 9001 and ISO 13485 certifications.
Harbor Sales supplies sign-industry materials and provides digital cutting services, turning aluminum, plastics, composite panels and other sheet goods into precisely sized or shaped components. Its cutshop combines CNC routing with laser cutting, computer-controlled shearing and panel optimization, including laser work on aluminum up to 5/8 inch thick. Harbor also stocks and cuts SignComp extrusions to size for sign cabinet work, with next-day cutting and truck delivery noted for stocked products.
Locally owned in Forest Hill, Harbor Spice Co., Inc. manufactures custom spice and seasoning blends, drawing on more than 25 years of technical experience and global sources. The company works in small, weekly batches with new-crop natural spices and dried herbs, supplying food businesses across North America while offering personalized packaging and private-label service. Its modern plant emphasizes consistent flavor, food safety, and direct attention to each customer’s requirements.
Born at GM’s Baltimore Assembly, HardGuard designs and manufactures assembly protection systems that help prevent chips, scratches, and dents on production lines. Founded in 1992, the Apogee Designs division now supports more than 60 active protection programs across 38 assembly plants in over 15 countries, while also adapting its protective covers for flight-critical aerospace hardware. Its representatives work directly with production teams and do not use brokers, keeping design and manufacturing decisions closely connected.
From its Pocomoke City headquarters, Hardwire, LLC designs and manufactures protective armor for military, law enforcement, schools, infrastructure and aerospace applications. The company’s American-made ballistic systems grew from military technology and include its DHS-designated Emergency Response Shield, while its four-building campus provides more than 210,000 square feet for engineering, production and in-house testing. Hardwire has manufactured protective armor for two decades and maintains ISO 9001:2015-certified quality procedures.
Since 1976, Hardwood Artisans has handcrafted made-to-order wood furniture in Virginia, with its Culpeper showroom and wood shop serving as the company headquarters. The American-made pieces are built by hand from solid hardwood and can be customized to suit a home, from distinctive Beehive seating to custom cabinetry and built-ins. Hardwood Artisans remains one of the few Virginia furniture makers offering this personalized, made-to-order approach.
Founded in 1965, Harford Minerals is a Harford County reclamation and recycling company with roots supplying sand to the golf-course industry. Its 80-acre campus now serves construction projects across the region, giving contractors a place to dispose of excavation material while supporting the reuse of construction waste.
For more than 50 years, Harford Systems has turned USA-sourced metal into custom products through an engineering-driven fabrication process in Aberdeen, Maryland. Its team works from concept and 3D CAD design through prototyping and production, with a history that includes supplying Western Electric, GE, and Westinghouse. Harford Systems serves demanding applications across America, including automotive components and commercial culinary equipment.
Based in Cascade, Maryland, Harshman Automotive turns racing and manufacturing ideas into machined components and finished automotive parts. Its work spans product development through production machining, with a catalog that includes specialized engine and cooling-system hardware such as billet water manifolds. The shop serves projects that call for both design know-how and practical racing experience.
Founded in 1969, privately held Hart Industries has spent more than five decades building technical expertise as a Baltimore paper-based flexible packaging converter. The company is known for developing packaging around demanding performance, food-safety, and sustainability requirements, while its long-running construction-materials business serves the gypsum wallboard industry. Hart has earned 100% scores on every SQF audit since implementing its food-safety program.
Hatch X is an experiential design and precision fabrication studio producing custom exhibits, immersive environments, brand activations, trade show booths, sculptures, signage, millwork, graphics, and interactive installations. Its in-house capabilities include CNC routing, laser cutting and welding, 3D printing, large-format printing, custom millwork, painting, polyurea coating, design, fabrication, event production, shipping, and installation.
Known for its purist approach, Hawthorne Fine Breakfast Pastry is a strictly wholesale bakery in Severna Park that makes traditional breakfast pastries from scratch for hospitality and coffee businesses across the DC metropolitan area. The bakery avoids dough conditioners, preservatives, and prepared fillings, producing daily and baking nightly while giving classic pastry forms a creative turn through chef-developed flavors.
Established in Bristol in 1978 by David Hayles, Hayles & Howe manufactures and installs ornamental plasterwork and scagliola, combining workshop craftsmanship with design, restoration and conservation work. Its more than 40-strong team works from the UK and USA on projects ranging from private homes to historic theatres and public buildings, including the Royal Opera House and Windsor Castle. The company’s work has received the Queen’s Award, the Plaisterers’ Trophy and ISO 9001 accreditation.
Founded in Solon, Ohio, in 1937, HDT Global is a manufacturer known for supporting military and expeditionary operations with equipment engineered for demanding field conditions. The company also serves industrial and medical customers through in-house engineering, manufacturing, and product support, with ISO 9001:2015 certification across its facilities.
Founded in Solon, Ohio, in 1937, HDT Global is a manufacturer and systems integrator known for supporting U.S. and allied military customers in austere environments. The company develops mission-ready equipment and provides engineering and manufacturing services for defense, government, industrial, and commercial users. Its facilities across the United States and Europe are certified to ISO 9001:2015.
Founded in 2015 by Dr. Ramanan Laxminarayan, HealthCubed India develops portable point-of-care diagnostic systems that screen for more than 55 health parameters. Its HealthCube XL and SE devices are designed for rapid testing in clinics, health camps and remote areas, operating with minimal training and without electricity or internet. The company says more than one million beneficiaries have been registered in its ecosystem and 2.5 million tests have been performed across four continents.
Rooted in Hyattsville, Healthy Fresh Meals is a local kitchen crew known for preparing fresh, chef-crafted meals from scratch each week. It serves customers across Washington, D.C., Maryland, and Northern Virginia with ready-to-heat food available without subscriptions or minimums.