Manufacturer Directory
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Showing 1021-1040 of 2554 results
MD
Heisler Semiconductor is an engineering-led company built around a Maryland lab and a domestic, NDA-first approach to difficult hardware programs. It helps fabless and other high-reliability teams move from design review to qualified volume, with the same engineers carrying ownership through development and validation on U.S. soil.
Born from a traveler’s improvised use of a bracelet at baggage claim, Helena Deneen makes Persona, a tie-on identifier designed to give luggage and other bags a distinctive identity. Its circular, streamlined design combines a leather-grain vinyl construction with personalization options, bringing a more expressive alternative to the standard luggage tag. The company also offers private labeling and fundraising programs for organizations.
Helios Electric LLC is a full-service electrical engineering, construction, and design firm for high-, medium-, and low-voltage power systems. Its capabilities include electrical equipment manufacturing and integration, power system design and studies, field retrofits, inspection, testing, commissioning, automation, and SCADA solutions for utility, industrial, railway, water and wastewater, aviation, healthcare, and mission-critical facilities.
More than 45 years ago, European-trained master craftsmen founded Helmut Guenschel, Inc., whose Baltimore team has made careful workmanship and attention to detail its defining character. The company creates museum-quality display cases for institutions and collectors, with custom engineering for objects that require long-term protection and presentation.
For more than 85 years, Helvoet Polymer Technologies has co-developed, molded and assembled high-precision polymer and elastomer components, turning complex designs into high-volume production parts. Its two production locations, more than 250 injection machines and workforce of over 800 produce more than 1 billion complex parts annually for health technology, mobility, food technology and new-energy applications. Helvoet’s in-house control of multi-material manufacturing and assembly is backed by certifications including ISO 9001, ISO 13485, ISO 14001, IATF 16949 and FSSC 22000.
Hememics Biotechnologies develops graphene-based biosensors and antibody-screening systems, including its FAST™ reader and disposable multiplexed chips that assess antibody–antigen binding in less than an hour. Based in Gaithersburg, Maryland, the company also develops HemChip® platforms for portable, simultaneous detection of biological and chemical targets. Its founding team combines blood-platelet research with experience engineering graphene sensor hardware and software.
From its Murray, Kentucky operation, HempWood manufactures hemp-based composite lumber and building materials, including flooring, panels and furniture components. The company began mass production and order fulfillment in the third quarter of 2019, turning fast-growing industrial hemp into a wood substitute for interior design and construction. Its products are made in the United States and include non-toxic, no-VOC options supported by documented material and safety testing.
Established in 2007 as Kelvin Hughes LLC, HENSOLDT North America is the company’s U.S. government and prime-contractor partner, serving customers from its Bethesda hub near Washington, D.C. It adapts HENSOLDT’s sensor solutions to U.S. defense and civil requirements while providing lifecycle support and training for military and aviation users.
Hercules Custom Iron, LLC is a full-service custom iron and metal fabrication company that designs, fabricates, coats, and installs custom products including railings, gates, fencing, light structural products, specialty metals, canopies, trellises, and glass rail systems. It serves commercial, industrial, and residential customers using steel, aluminum, stainless steel, brass/bronze, nickel silver, and glass-related systems.
Since 1955, Hercules Fence has built its reputation as a regional fence contractor known for professional service and quality installation. Based in Virginia with five locations serving Maryland and the Washington metropolitan area, the company handles projects ranging from homes to major government facilities, with high-security work extending nationwide. Hercules is also the official fence partner of the Washington Commanders.
Veteran-owned and family-led, Heritage Signs & Displays began in 1977 as a commercial printer and has spent nearly five decades building relationships across the Mid-Atlantic. Today, the company helps organizations shape branded workplace interiors and event environments, with local accountability supported by seven regional locations. Its faith-guided culture emphasizes preparation, integrity, and service from project planning through installation.
Heritage Signs & Displays is a veteran-owned, family-led company that began as a small quick-printing business in 1977. Since 2009, it has become known for helping organizations shape branded workplace interiors through environmental graphic design and coordinated installation. Its seven-location regional network combines local site support with production resources for clients across the Carolinas and Mid-Atlantic.
Since 1866, family-run HERMETIC-Pumpen GmbH has developed and manufactured hermetically sealed centrifugal pumps in Gundelfingen for industrial processes where leak-tightness and safe handling of hazardous media are essential. Its headquarters remains the company’s development and manufacturing center, while around 750 employees and a global service network support customers worldwide. HERMETIC’s experience spans demanding applications in process industries, including extreme temperatures and high pressures.
Employee-owned Herrick Technology Laboratories began in 2000 as an electronics research laboratory serving the U.S. Department of Defense. After a 2013 acquisition, the company grew from prototyping into the manufacture of software-defined radio systems for demanding national-security missions, with more than 140 employees working across facilities in Maryland and New Hampshire.
Family-owned Herron Printing & Graphics began in 1982 as a quick-print franchise in Rockville, Maryland, and has since grown into a full-service commercial printer in Gaithersburg. Its expanded facility supports on-site four-color printing, while the company helps Washington-area businesses turn communications into finished print materials.
Hestia Robotics develops and assembles autonomous coffee-robot systems, pairing robotic beverage hardware with software for fully automated cafés. The company grew from robotics and machine-vision research at Fudan University and is building a joint robotics R&D laboratory and doctoral workstation with the university. Its C1 range includes a compact model for space-constrained sites and a corner configuration designed to work alongside staff in hospitality settings.
Hesy Tech is developing an AI-guided robotic system that automates dental hygiene and early restorative care, using sensor-driven motion to perform tasks such as scaling, polishing, and periodontal probing. Its system combines RGB, intraoral, and near-infrared vision with a clinical-grade safety stack and adaptive, hygienist-trained motion. Currently under development, the technology is intended to help clinics expand preventive-care capacity with consistent workflows across locations.
HEVI Corp is a U.S. manufacturer of all-electric heavy equipment, with a lineup that includes wheel loaders, excavators, forklifts and charging equipment. The company says it is the first American manufacturer to electrify its entire heavy-equipment lineup, engineering and assembling machines for zero operating emissions. Headquartered in East Windsor, New Jersey, HEVI assembles its equipment in White Marsh, Maryland and sells directly to industrial customers across North America.
Hewlett Packard Enterprise builds enterprise technology that connects AI, cloud and networking, from HPE Cray supercomputers and compute systems to storage and software. Its GreenLake platform provides a unified hybrid-cloud experience, while HPE also supports the full IT lifecycle through data, networking and other services. The company’s recycling program handles end-of-use HPE hardware through a global network whose contractors must meet HPE standards and hold ISO 14001 or RIOS certification.
HEX Ferments began in 2010 as a performance-art collaboration between co-founders Meaghan and Shane before growing into a Baltimore food company known for its living ferments. It works with local organic farmers, including those using regenerative practices, and follows an unheated traditional process that preserves the activity of its sauerkraut and kombucha. Its bottle-exchange program has kept tens of thousands of pounds of glass out of waste and recycling streams, while the company has earned a Good Food Award and Slow Food’s Snail of Approval.