Top 20 Electronics Manufacturers in Maryland 2026
Last updated
FirmsLedger lists 20 electronics & semiconductor manufacturers headquartered in Maryland. The largest clusters are in Baltimore (3), Gaithersburg (3), Beltsville (2) and Elkridge (2), and the other 10 are in 9 more cities. Baltimore listings include Eastern Scientific, H P Electronics and U. S. Electronics Repairs.
By specialty, Maryland has PCB manufacturing (5), SMT assembly (3), semiconductor packaging (3) and PCB assembly (2) listings. Capabilities that more than one of them list include conformal coating (2).
All Electronics & Semiconductor in Maryland
Capital Electro Circuits Inc
Gaithersburg, Maryland
Capital Electro Circuits Inc., based in Gaithersburg, Maryland, has been fabricating printed circuit boards since 1985. The company operates as a domestic manufacturer of rigid, flexible, and rigid‑flex PCBs, with a focus on specialty designs that fall outside standard fabrication lines.
Inter-Connect Electronics
Elkridge, Maryland
Inter-Connect Electronics was incorporated in 1990 in Elkridge, Maryland, within the Baltimore-Washington Industrial Corridor. The company was founded as a woman-owned small business (WOSB) and has operated continuously for over three decades as a contract manufacturer specializing in custom cable and harness assemblies.
Phase Electronics
Rockville, Maryland
Phase Electronics is a privately owned, family-run electronics manufacturer based in Rockville, Maryland. Operating from an owner-occupied 26,000-square-foot facility, Phase Electronics provides a range of electronic manufacturing services including rapid prototyping, medium-volume production, surface-mount and through-hole PCB assembly, electromechanical box builds, cable assemblies, rework, conformal coating, X-ray inspection, and programming and testing.
Tristate Electronic Manufacturing
Hagerstown, Maryland
Tristate Electronic Manufacturing was founded in 1985 by Ryan Null in Boonsboro, Maryland. Null, a graduate of the Arundel Institute of Technology, began the business in his home basement before moving to a facility on Old National Pike.
MD Medical Electronics Inc
Severna Park, Maryland300 employees
Based in Severna Park, Maryland, MD Medical Electronics Inc. (also known as Maryland Medical Electronics, Inc.) has served the medical and scientific industries for over two decades.
Patton Electronics Co
Gaithersburg, Maryland
Patton Electronics Co., operating as Patton LLC, is headquartered in Gaithersburg, Maryland. The company describes itself as a multi-national organization with global offices in the United States, Hungary, and Switzerland, though its founding year and ownership structure are not publicly disclosed on its website.
- CoolCAD Electronics Inc.Greenbelt, Maryland
- H P ElectronicsBaltimore, Maryland
- Heisler Semiconductor LLCArbutus, Maryland
- L3Harris TechnologiesMillersville, Maryland
- Marine Electric Systems LLCAnnapolis, Maryland
- Neocera LLCBeltsville, Maryland
- Pace IncElkridge, Maryland
- Blue Wave Semiconductors IncHalethorpe, Maryland
- U. S. Electronics RepairsBaltimore, Maryland
- Imperium Inc.Beltsville, Maryland
Listings are grouped by category and location. Add your company
Other industries in Maryland
- Electrical Equipment & Components in Maryland
- Mechanical Components in Maryland
- Plastics & Packaging in Maryland
- Metal Fabrication in Maryland
- Automotive Parts in Maryland
- Textile & Apparel in Maryland
- Furniture & Woodworking in Maryland
- Food & Beverage Processing in Maryland
- Medical Devices in Maryland
- Pharmaceutical in Maryland
Electronics & Semiconductor in Maryland by specialty
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Frequently asked questions
Which electronics & semiconductor manufacturers in Maryland list conformal coating?
2 companies list it: Phase Electronics and Tristate Electronic Manufacturing.
Which certifications do electronics & semiconductor manufacturers in Maryland list?
ISO 9001:2015: C.R. International, Capital Electro Circuits and 3 others. ITAR Registered: C.R. International, Capital Electro Circuits and 2 others. RoHS Compliant: C.R. International, Capital Electro Circuits and Phase Electronics.