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The 53 largest hardware manufacturers in Maryland

Tamtam tracks 53 hardware manufacturers headquartered in Maryland. This list ranks all of them by number of employees on LinkedIn, led by Ciena, ESAB Corporation and Sinclair Inc.. Their median headcount is 405. Half of them were founded in 1981 or later. The most common headquarters are Columbia (5), Rockville (5) and Baltimore (4).

馃嚭馃嚫 Maryland53 companiesUpdated Nov 2, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Cienaciena.com

Global leader in optical and routing systems, services, and automation software, building adaptive networks to meet digital demands with innovation and collaboration

Telecommunications 馃嚭馃嚫 Hanover 10,652 1992
2
ESAB Corporationesabcorporation.com

A global leader in innovative solutions for fabrication and specialty gas control markets, focusing on continuous improvement and empowering associates worldwide

Machinery Manufacturing 馃嚭馃嚫 North Bethesda 5,556 n/a
3
Sinclair Inc.sbgi.net

A diversified media company providing local news, sports, and entertainment through TV stations, regional sports networks, and digital platforms

Broadcast Media Production and Distribution 馃嚭馃嚫 Cockeysville 5,191 1986
4
ESABesab.com

A global leader in welding technology, offering equipment, consumables, automation, and cutting systems to improve productivity and reduce costs for manufacturers worldwide

Machinery Manufacturing 馃嚭馃嚫 North Bethesda 3,785 1904
5
Hugheshughes.com

Provides broadband equipment, services, and network operations to millions of consumers, businesses, and governments worldwide via satellite and multi-transport technologies.

Telecommunications 馃嚭馃嚫 Germantown 3,209 1971
6
Black & Deckerblackanddecker.com

Manufacturing and providing high-quality, innovative, and valuable tools and machines focused on meeting customer needs and satisfaction.

Manufacturing 馃嚭馃嚫 Towson 2,105 n/a
7
Thales Defense & Security, Inc.thalesdsi.com

Global provider of innovative solutions for defense, federal, and commercial markets including communication systems, sonar systems, data protection, and technology integration for various domains

Defense and Space Manufacturing 馃嚭馃嚫 Clarksburg 2,013 1964
8
Apex Tool Group, LLCapextoolgroup.com

Global company promoting diversity, inclusion, and respect to create a positive, safe, and inspiring work environment for associates.

Manufacturing 馃嚭馃嚫 Sparks Glencoe 1,971 2010
9
X-energyx-energy.com

development and manufacturing of innovative nuclear fuel and reactor designs for safe, affordable, and reliable carbon-free baseload power

Nuclear Electric Power Generation 馃嚭馃嚫 Rockville 1,858 2009
10
AAI Corporationtextronsystems.com

This company develops and integrates products and services for aerospace, defense, law enforcement, security, and critical infrastructure protection worldwide

Defense and Space Manufacturing 馃嚭馃嚫 Hunt Valley 1,655 1950
11
IonQionq.com

Creating powerful and scalable quantum computers using a unique trapped-ion approach to solve complex problems and transform industries globally

Computers and Electronics Manufacturing 馃嚭馃嚫 College Park 1,296 2015
12
Baltimore Aircoil Companybaltimoreaircoil.com

Design and manufacture advanced evaporative, hybrid, and dry cooling technologies for HVAC, industrial, and refrigeration industries worldwide.

Industrial Machinery Manufacturing 馃嚭馃嚫 Jessup 1,250 1938
13
STANLEY Engineered Fasteningstanleyengineeredfastening.com

provides advanced fastening and assembly products with global support, engineering expertise, and rapid onsite customer service worldwide

Industrial Machinery Manufacturing 馃嚭馃嚫 Towson 1,181 n/a
14
Brivobrivo.com

A global leader in cloud-based access control technology for commercial real estate, multifamily residential buildings, and large enterprises

IT Services and IT Consulting 馃嚭馃嚫 Bethesda 1,147 1999
15
MESO SCALE DIAGNOSTICS, LLC.mesoscale.com

Develops, manufactures, and commercializes assays and instruments for measuring molecules in biological samples, supporting medical research and drug development with proprietary technology.

Biotechnology Research 馃嚭馃嚫 Rockville 1,035 1995
16
Shimadzu Scientific Instrumentsssi.shimadzu.com

A leader in scientific instrument development, offering analytical solutions, training, collaboration centers, and products to laboratories and research institutions worldwide

Biotechnology Research 馃嚭馃嚫 Columbia 741 1975
17
EVAPCO, Inc.evapco.com

A passionate team of employee-owners revolutionizing global heat transfer applications with top-of-the-line products for evaporative cooling and industrial refrigeration since 1976

Industrial Machinery Manufacturing 馃嚭馃嚫 Taneytown 715 1976
18
DEWALTdewalt.com

Stay updated on the latest technology and industry innovations for total jobsite solutions by following our LinkedIn page

Construction 馃嚭馃嚫 Towson 683 n/a
19
e-con Systemse-consystems.com

Designing, developing, and manufacturing custom and off-the-shelf OEM camera solutions for various industries, including medical and automotive, with extensive support.

Appliances, Electrical, and Electronics Manufacturing 馃嚭馃嚫 Fremont 648 2003
20
GMS Mine Repair & Maintenancegmsminerepair.com

A leading provider of underground and surface mine contracting, maintenance, and services with a strong focus on safety, quality, and efficiency

Mining 馃嚭馃嚫 Mountain Lake Park 647 1982
21
Forterraforterra.com

A pioneering provider of autonomous systems for ground-based movement, specializing in protecting soldiers and enabling civilian workers in critical conditions for the US Department of Defense

Defense and Space Manufacturing 馃嚭馃嚫 Clarksburg 603 2002
22
Dixon Valvedixonvalve.com

Established in 1916, this company is a leading manufacturer of fluid transfer and control products for various industries, prioritizing safety, durability, and availability

Oil and Gas 馃嚭馃嚫 Chestertown 555 1916
23
Knorr Brake Companyknorr-bremse.us

Innovative leader supplying rail market customers in North America with braking systems, passenger door systems, and climate-control systems as part of global company

Truck Transportation 馃嚭馃嚫 Westminster 529 1973
24
Digital Receiver Technology, Inc.drti.com

DRT designs cutting-edge software defined radio systems for intelligence, defense, and homeland security, providing unmatched versatility and performance for mission-critical applications

Defense and Space Manufacturing 馃嚭馃嚫 Germantown 520 1997
25
TCOM, L.P.tcomlp.com

Global leader in ISR solutions with Lighter-than-Air Persistent Surveillance platforms for Air, Maritime, and Land, providing complete persistent surveillance capabilities worldwide

Defense and Space Manufacturing 馃嚭馃嚫 Columbia 437 1971
26
Phillips Corporationphillipscorp.com

A global manufacturing solutions leader specializing in overcoming manufacturing challenges, enhancing capabilities, and driving profitability through partnerships with industry-leading technology providers

Machinery Manufacturing 馃嚭馃嚫 Hanover 406 1961
27
ST Engineering MRASmras-usa.com

A world-leading manufacturer of complex aerostructures, specialized structural components, and nacelle systems for aircraft, with design, manufacturing, and support services

Aviation and Aerospace Component Manufacturing 馃嚭馃嚫 Middle River 405 1929
28
BroadSoftcisco.com

Leading provider of software enabling service providers to offer Unified Communications, including messaging, video calling, and mobile/fixed-line services over IP networks

Telecommunications 馃嚭馃嚫 Gaithersburg 402 1999
29
Ambu USAambuusa.com

Design and manufacture of life-saving medical devices including resuscitators and single-use endoscopy products for patient care.

Medical Equipment Manufacturing 馃嚭馃嚫 Columbia 383 1937
30
Novatecnovatec.com

The company specializes in manufacturing resin dryers and handling equipment for the plastics industry, focusing on reducing energy costs for customers

Machinery Manufacturing 馃嚭馃嚫 Baltimore 375 n/a
31
Dynasplint Systems, Inc.dynasplint.com

This company designs and sells gentle stretching devices to increase joint range of motion and expedite recovery for patients Dedicated to restoring quality of life

Medical Equipment Manufacturing 馃嚭馃嚫 Severna Park 373 1981
32
Dunbardunbarsecurity.com

A provider of industry-leading security products and solutions, offering secure cash management, tamper-evident deposit bags, electronic security systems, and customized security plans

Security and Investigations 馃嚭馃嚫 Cockeysville 357 1923
33
Sport Squad, Incsport-squad.com

An emerging game room equipment manufacturer focused on bringing family and friends together with air hockey, foosball, arcade basketball, and professional table tennis products

Sporting Goods Manufacturing 馃嚭馃嚫 Rockville 312 2006
34
JOOLAjoola.com

A leading pioneer in table tennis and pickleball, offering equipment, apparel, and accessories for players worldwide with a focus on innovation

Sporting Goods Manufacturing 馃嚭馃嚫 Rockville 295 1952
35
BTEbtetechnologies.com

Specializing in human physical performance evaluation and treatment, we offer advanced physical therapy systems for clinics and hospitals to achieve better outcomes

Medical Equipment Manufacturing 馃嚭馃嚫 Hanover 295 1979
36
Beretta USAberetta.com

Manufacturing, distributing, and marketing firearms, accessories, and apparel with a long-standing family heritage and global retail presence.

Sporting Goods Manufacturing 馃嚭馃嚫 Accokeek 276 1526
37
Apkudoapkudo.com

A company specializing in managing connected devices, maximizing device value, reducing labor costs, and minimizing e-waste through automated testing and grading systems

Technology, Information and Internet 馃嚭馃嚫 Baltimore 238 2011
38
AEMaem.eco

A company leveraging technology to help communities and organizations mitigate environmental risks through sensing networks, data management, and analytics

Technology, Information and Internet 馃嚭馃嚫 Germantown 237 2018
39
DigiFlight, Inc.digiflight.com

A veteran/minority-owned small business specializing in acquisition management and technology solutions for Government and commercial clients

IT Services and IT Consulting 馃嚭馃嚫 Columbia 236 1999
40
STX, LLCstx.com

A leading designer and manufacturer of lacrosse, field hockey, and ice hockey equipment and apparel, known for innovative contributions to the sport

Sporting Goods Manufacturing 馃嚭馃嚫 Baltimore 224 1970
41
LAI International, LLClaico.com

Highly-engineered precision component manufacturing solutions for top-tier customers in aerospace, defense, medical device, energy, and industrial industries

Aviation and Aerospace Component Manufacturing 馃嚭馃嚫 Westminster 89 1979
42
LifeStrawlifestraw.com

Designing functional products for safe drinking water access globally, while supporting underrepresented communities and minimizing environmental impact Fighting for positive change

Manufacturing 馃嚭馃嚫 Baltimore 74 n/a
43
Minibar Systems North Americaminibarsystems.com

A leading hospitality company specializing in minibars and safes, offering advanced systems and services to hotels worldwide

Hospitality 馃嚭馃嚫 Rockville 64 1971
44
Chuck Levin's Washington Music Centerchucklevins.com

A family-owned music center with a rich history, offering a wide selection of instruments, repairs, and exceptional customer service

Retail 馃嚭馃嚫 Silver Spring 62 1958
45
Integrity Auto Group (IAG)iagperformance.com

An automotive company in Maryland specializing in high-performance products and services

Motor Vehicle Manufacturing 馃嚭馃嚫 Westminster 40 2007
46
Esurgi, Inc.myesurgi.com

Innovative healthcare company utilizing science and technology to enhance healthcare delivery, improve quality of life, and reduce costs with various biotech solutions

Biotechnology Research 馃嚭馃嚫 Lutherville Timonium 29 n/a
47
dHive - Dynamic Hive, Inc.dynamichive.com

A US manufacturer of innovative wall systems, focusing on details and sustainability to deliver optimal design solutions for various environments

Construction 馃嚭馃嚫 Columbia 18 2011
48
Fairlawn Tool, Inc.calderamfg.com

Metal fabricating services provider offering high quality, efficient solutions at competitive prices for various industries and manufacturers

Machinery Manufacturing 馃嚭馃嚫 Hampstead 17 1954
49
ULTRA ELECTRONICS PRECISION AIR & LAND SYSTEMS, INC

A machinery company based in Lanham, Maryland, specializing in precision air and land systems for various applications

Industrial Machinery Manufacturing 馃嚭馃嚫 Lanham 12 2001
50
C.R. International Inc.cri-inc.net

A Maryland-based company specializes in high-quality assembly services, PCB manufacturing, and custom electronic products, catering to diverse industries for over forty years

Appliances, Electrical, and Electronics Manufacturing 馃嚭馃嚫 Laurel 11 1981
51
Adcole Maryland Aerospace LLC.adcolemai.com

A company specializing in small satellite technology, precision sun sensors, and spacecraft attitude control components for critical space program needs

Aviation and Aerospace Component Manufacturing 馃嚭馃嚫 Crofton 11 n/a
52
Cmc Cevenini USAlog-slitting-machine.com

A machinery company located in Maryland, specializing in providing high-quality equipment and services to various industries

Machinery Manufacturing 馃嚭馃嚫 Curtis Bay 2 n/a
53
Techtronic Industries North America, Inc.ttigroup.com

Management and growth of established power tools and outdoor product brands, focusing on increasing market share and brand strength.

Software Development 馃嚭馃嚫 Hunt Valley n/a 2000

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 2, 2026.

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