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B2B Business Directory

Electronics Manufacturers in Connecticut

Last updated: May 12, 2025 Country: USA Industry: Manufacturing & Industrial Companies listed: 196

This B2B directory page highlights 196 companies in USA within the Manufacturing & Industrial sector, helping you identify relevant suppliers, partners, and service providers faster.

Electronics Manufacturers in Connecticut

Connecticut has a well-established reputation in electronics manufacturing, particularly in high-precision and highly regulated industries such as aerospace, defense, medical devices, and industrial automation. The state is home to a wide range of electronics manufacturers that specialize in advanced printed circuit board (PCB) assembly, custom electronic components, embedded systems, and RF technologies. With hubs in cities like Hartford, New Haven, and Stamford, Connecticut combines technical expertise with proximity to major Northeast markets and defense contractors. The state’s manufacturing sector is supported by a highly skilled workforce, cultivated through strong STEM education programs and partnerships with leading universities and technical institutions. Additionally, Connecticut offers attractive incentives for high-tech manufacturing and research-driven companies, along with access to a robust supply chain and quality infrastructure. For procurement leaders, engineers, and technology innovators, Connecticut delivers a refined blend of manufacturing excellence, regulatory compliance, and strategic location, making it a trusted destination for sourcing and developing next-generation electronic systems.

Nr Company name Location Employees Turnover
1 Amphenol Wallingford, Connecticut 10,000+ $15.2B
2 Harman Stamford, Connecticut 10,000+ $8.1B
3 Hubbell Incorporated Shelton, Connecticut 10,000+ $5.6B
4 Senior Enfield, Connecticut 5,001 – 10,000 $1.3B
5 Photronics Brookfield, Connecticut 1,001 – 5,000 $862.8M
6 Carling Technologies Plainville, Connecticut 1,001 – 5,000 $402.2M
7 Amphenol RF Danbury, Connecticut 1,001 – 5,000 $298.7M
8 Siemon Watertown, Connecticut 501 – 1,000 $276.8M
9 Light Sources Orange, Connecticut 501 – 1,000 $271.6M
10 Deringer-Ney Bloomfield, Connecticut 201 – 500 $228.5M
11 Sennheiser Old Lyme, Connecticut 201 – 500 $80.7M
12 CompAir UK Limited Middletown, Connecticut 501 – 1,000 $44.9M
13 H&T Batteries Waterbury, Connecticut 501 – 1,000 $41.6M
14 Neeltran New Milford, Connecticut 51 – 200 $37.1M
15 Microboard Processing Seymour, Connecticut 51 – 200 $33.9M
16 Raf Electronic Hardware Seymour, Connecticut 51 – 200 $24.7M
17 Carten Controls Cheshire, Connecticut 51 – 200 $23.9M
18 Plainville Electrical Products Company (PEPCO Bristol, Connecticut 51 – 200 $23.8M
19 Trans-Tek Ellington, Connecticut 51 – 200 $23.7M
20 Imperial Electronic Assembly Brookfield, Connecticut 51 – 200 $22.9M
21 Amphenol Global Interconnect Systems Hartford, Connecticut 51 – 200 $22.1M
22 iDevices Avon, Connecticut 51 – 200 $21.4M
23 MacDermid Alpha Electronics Solutions Waterbury, Connecticut 201 – 500 $20.4M
24 Alcad North Haven, Connecticut 201 – 500 $20.1M
25 Fitouch Farmington, Connecticut 201 – 500 $20.1M
26 TranSwitch Shelton, Connecticut 51 – 200 $17.9M
27 Powr2 Bethel, Connecticut 51 – 200 $17.4M
28 GTI Technologies Shelton, Connecticut 11 – 50 $17.2M
29 Shore Power Old Saybrook, Connecticut 11 – 50 $16.5M
30 Northern Technologies Prospect, Connecticut 51 – 200 $15.1M
31 Idyllic Technologies Bethany, Connecticut 201 – 500 $15.1M
32 Electronic Connection Waterbury, Connecticut 51 – 200 $14.3M
33 Nexos Technologies Stamford, Connecticut 11 – 50 $13.7M
34 JuiceBar Norwalk, Connecticut 11 – 50 $13.6M
35 BST Systems Plainfield, Connecticut 51 – 200 $11.9M
36 Schick Manufacturing Milford, Connecticut 11 – 50 $10.6M
37 Electrical Wholesalers Middletown, Connecticut 51 – 200 $9.5M
38 Bead Electronics Milford, Connecticut 11 – 50 $9.2M
39 Diversified Manufacturing and Services Milford, Connecticut 11 – 50 $9M
40 DiCON Connections North Branford, Connecticut 11 – 50 $8.8M
41 Circuit Breaker Sales NE Seymour, Connecticut 51 – 200 $8.1M
42 Halo2Cloud Hartford, Connecticut 11 – 50 $7.9M
43 Aramaze Prospect, Connecticut 51 – 200 $7.9M
44 A&S Electrical Services Durham, Connecticut 11 – 50 $7.4M
45 Magnetic Technologies Putnam, Connecticut 11 – 50 $7.4M
46 EI Electronics Tariffville, Connecticut 51 – 200 $7.3M
47 Popple Hartford, Connecticut 11 – 50 $7.2M
48 Nanosciences Oxford, Connecticut 11 – 50 $7.2M
49 Herbdesign East Woodstock, Connecticut 1 – 10 $7M
50 ISVI Oxford, Connecticut 11 – 50 $7M
51 Polarion New Milford, Connecticut 11 – 50 $6.9M
52 Battery Junction Old Saybrook, Connecticut 11 – 50 $6.5M
53 Tri Tec Electronics Watertown, Connecticut 11 – 50 $6.3M
54 Brookside Import Specialties Branford, Connecticut 11 – 50 $6M
55 iMastercopy Stamford, Connecticut 11 – 50 $6M
56 K-T Electronics Stamford, Connecticut 11 – 50 $5.9M
57 Oslo Switch Cheshire, Connecticut 11 – 50 $5.9M
58 Battery Intelligence Farmington, Connecticut 11 – 50 $5.8M
59 MRI Premium Distribution Services Plainville, Connecticut 11 – 50 $5.8M
60 Digatron Systems Shelton, Connecticut 11 – 50 $5.8M
61 Advanced Home Audio Shelton, Connecticut 11 – 50 $5.8M
62 Hbl America Rocky Hill, Connecticut 11 – 50 $5.7M
63 Universal Voltronics Brookfield, Connecticut 11 – 50 $5.7M
64 Sonata Fairfield, Connecticut 11 – 50 $5.7M
65 Phoenix Traders Waterbury, Connecticut 11 – 50 $5.7M
66 Devon Watertown, Connecticut 11 – 50 $5.3M
67 SP Technology East Windsor, Connecticut 11 – 50 $5.2M
68 Agria Milford, Connecticut 11 – 50 $5.2M
69 Electric Control Equipment Seymour, Connecticut 11 – 50 $5.1M
70 Trakaid Shelton, Connecticut 11 – 50 $5.1M
71 Milford Fastening Systems Milford, Connecticut 11 – 50 $4.9M
72 MY FAMILY DVD Morek Cheshire, Connecticut 11 – 50 $4.8M
73 Dufrane Nuclear Shielding Winsted, Connecticut 11 – 50 $4.7M
74 TEK Industries Vernon, Connecticut 11 – 50 $4.7M
75 Limat Graphics Danbury, Connecticut 11 – 50 $4.7M
76 SolarSynthesis South Windsor, Connecticut 11 – 50 $4.6M
77 SGA Components Group Coventry, Connecticut 11 – 50 $4.6M
78 Xeno USA Watertown, Connecticut 11 – 50 $4.5M
79 Dah Young Vacuum Technical Windsor, Connecticut 11 – 50 $4.4M
80 Europe – IP Communications Norwalk, Connecticut 11 – 50 $4.4M
81 Opus Semiconductor New Haven, Connecticut 11 – 50 $4.4M
82 Mutual Solutions Branford, Connecticut 11 – 50 $4.3M
83 Solar Energy US Stamford, Connecticut 11 – 50 $4.3M
84 O K Orange, Connecticut 11 – 50 $4.2M
85 Rivera & Rivera Associates New Haven, Connecticut 11 – 50 $4.2M
86 3V Services Bethel, Connecticut 11 – 50 $4.2M
87 ProfiCAD Bethel, Connecticut 11 – 50 $4.2M
88 Apollo Solar Bethel, Connecticut 11 – 50 $4.1M
89 SheepDog Guides Deep River, Connecticut 11 – 50 $4M
90 High Voltage Outsourcing Danbury, Connecticut 11 – 50 $3.9M
91 Shane Industries Naugatuck, Connecticut 1 – 10 $3.9M
92 PCB Assembly Farmington, Connecticut 11 – 50 $3.9M
93 Perrotta Consulting Bethel, Connecticut 1 – 10 $3.9M
94 Intelec Glastonbury, Connecticut 51 – 200 $3.8M
95 IronNimbus Kensington, Connecticut 11 – 50 $3.8M
96 Prospect Products Newington, Connecticut 11 – 50 $3.8M
97 Parash Trading Connecticut 11 – 50 $3.8M
98 Manufacturers Associates Hamden, Connecticut 1 – 10 $3.8M
99 Beacon Electronics Fairfield, Connecticut 11 – 50 $3.8M
100 Custom Resource Associates Ivoryton, Connecticut 11 – 50 $3.7M
101 Jjl Electric Deep River, Connecticut 11 – 50 $3.7M
102 Emme Controls Bristol, Connecticut 1 – 10 $3.6M
103 QDS Manufacturing Shelton, Connecticut 11 – 50 $3.6M
104 Jan Electronic Supplies New London, Connecticut 1 – 10 $3.6M
105 Cougar Electronics New Haven, Connecticut 11 – 50 $3.6M
106 Ockam Instruments Milford, Connecticut 11 – 50 $3.6M
107 Ockam Instruments Milford, Connecticut 11 – 50 $3.6M
108 Simran Enterprises Derby, Connecticut 11 – 50 $3.5M
109 Edal Industries East Haven, Connecticut 11 – 50 $3.5M
110 Asg Rocky Hill, Connecticut 11 – 50 $3.5M
111 Evse Enfield, Connecticut 51 – 200 $3.5M
112 Power Controls Wallingford, Connecticut 11 – 50 $3.4M
113 Precise Circuit Shelton, Connecticut 11 – 50 $3.4M
114 Hykon India Fairfield, Connecticut 11 – 50 $3.4M
115 B & B Threaded Components East Berlin, Connecticut 11 – 50 $3.4M
116 XG Industries Stratford, Connecticut 11 – 50 $3.3M
117 Reconditioned Power West Haven, Connecticut 11 – 50 $3.3M
118 Cadenza Innovation Danbury, Connecticut 11 – 50 $3.3M
119 Alacrity Semiconductors Branford, Connecticut 1 – 10 $3.3M
120 OnStat Power Stamford, Connecticut 1 – 10 $3.2M
121 Timing Within Middlebury, Connecticut 11 – 50 $3.1M
122 Enstall Greenwich, Connecticut 11 – 50 $3M
123 Engineered Serenity Redding, Connecticut 11 – 50 $2.8M
124 Top Electronics Gadgets Prospect, Connecticut 11 – 50 $2.8M
125 History Chip Watertown, Connecticut 1 – 10 $2.8M
126 Lance International North Haven, Connecticut 11 – 50 $2.7M
127 Roxtah Technologies Pvt Manchester, Connecticut 11 – 50 $2.7M
128 Voice Coil East Hartford, Connecticut 11 – 50 $2.7M
129 Bentley Electronic Systems Glastonbury, Connecticut 1 – 10 $2.6M
130 HD Frequency Fairfield, Connecticut 11 – 50 $2.6M
131 Accutron Windsor, Connecticut 11 – 50 $2.6M
132 Flaipixels Windsor, Connecticut 11 – 50 $2.5M
133 Rexing Milford, Connecticut 11 – 50 $2.5M
134 Tad Construction Shelton, Connecticut 11 – 50 $2.3M
135 Httm Waterbury, Connecticut 11 – 50 $2.2M
136 Grimmwerks Canton, Connecticut 1 – 10 $2.2M
137 Northeast Direct Westbrook, Connecticut 1 – 10 $2.2M
138 Circuit Cellar Vernon, Connecticut 1 – 10 $2.2M
139 John Fazio Jr Sandy Hook, Connecticut 1 – 10 $2.1M
140 Advanced Robot & AI Solutions Stratford, Connecticut 1 – 10 $2.1M
141 Aventine Software South Windsor, Connecticut 11 – 50 $2M
142 AeVee Laboratories New Haven, Connecticut 1 – 10 $2M
143 Entopus New Haven, Connecticut 11 – 50 $1.9M
144 System Semiconductor Marlborough, Connecticut 1 – 10 $1.8M
145 Cambridge America Branford, Connecticut 11 – 50 $1.8M
146 Nutrilab Rocky Hill, Connecticut 11 – 50 $1.7M
147 Connecticut Software Consortium Trumbull, Connecticut 1 – 10 $1.6M
148 Manitou Systems Danbury, Connecticut 1 – 10 $1.6M
149 CoberMuegge Stratford, Connecticut 11 – 50 $1.5M
150 Berkeley Software Westport, Connecticut 11 – 50 $1.5M
151 Sparetech.com New Milford, Connecticut 1 – 10 $1.4M
152 Trout Software Stamford, Connecticut 1 – 10 $1.3M
153 Network Expert Software Systems Berlin, Connecticut 1 – 10 $1.3M
154 Embedded Systems Middletown, Connecticut 1 – 10 $1.2M
155 The World’s Greatest Stories Trumbull, Connecticut 1 – 10 $1.2M
156 Lab Software Associates Wilton, Connecticut 1 – 10 $1.2M
157 Set-fast Norwalk, Connecticut 1 – 10 $1.2M
158 Accu-Noise Watertown, Connecticut 1 – 10 $1.2M
159 Innovative Electronics Brookfield, Connecticut 1 – 10 $1.2M
160 National Magnetic Sensors Plantsville, Connecticut 1 – 10 $1.2M
161 100 West Electronics Winchester Center, Connecticut 1 – 10 $1.2M
162 MOTOM Electronics West Cornwall, Connecticut 1 – 10 $1.2M
163 Genesys DTP Gaylordsville, Connecticut 1 – 10 $1.2M
164 Shoreline Electronics Clinton, Connecticut 1 – 10 $1.2M
165 Take 5 Audio New Haven, Connecticut 1 – 10 $1.2M
166 GJD Associates Plantsville, Connecticut 1 – 10 $1.2M
167 Bully Sound Milford, Connecticut 1 – 10 $1.2M
168 NewTech Newtown, Connecticut 1 – 10 $1.2M
169 Jet Process North Haven, Connecticut 1 – 10 $1.2M
170 Advanced Product Solutions Hamden, Connecticut 1 – 10 $1.2M
171 New England Sound Light Video Services North Haven, Connecticut 1 – 10 $1.2M
172 Perfect Vision & Sound Avon, Connecticut 1 – 10 $1.2M
173 Agra Software Cheshire, Connecticut 11 – 50 $980,000
174 Stauffer Sheet Metal Broad Brook, Connecticut 11 – 50 $969,000
175 Mystic Circuits Jewett City, Connecticut 1 – 10 $969,000
176 NEAME Deep River, Connecticut 1 – 10 $964,000
177 Tokeneke Research Norwalk, Connecticut 1 – 10 $950,000
178 Prime Battery Danbury, Connecticut 1 – 10 $947,000
179 Continuum Power Solutions East Lyme, Connecticut 1 – 10 $939,000
180 Zen Software Trumbull, Connecticut 1 – 10 $930,000
181 Samarius Precision Instruments Wallingford, Connecticut 1 – 10 $925,000
182 Brain Parade Stamford, Connecticut 1 – 10 $917,000
183 Harness the Sun Lebanon, Connecticut 1 – 10 $914,000
184 Create My Dvd Bethel, Connecticut 1 – 10 $912,000
185 E-Mark Shelton, Connecticut 1 – 10 $911,000
186 Syrnatec Middletown, Connecticut 1 – 10 $899,000
187 Thor Audio Fairfield, Connecticut 1 – 10 $897,000
188 RAM Technologies Guilford, Connecticut 1 – 10 $895,000
189 Dynaxa Bethel, Connecticut 1 – 10 $893,000
190 Number Nine Design Seymour, Connecticut 1 – 10 $886,000
191 East Coast Battery Waterbury, Connecticut 1 – 10 $794,000
192 Custom Photo & Design Wallingford, Connecticut 1 – 10 $786,000
193 Vantage Technology Ridgefield, Connecticut 1 – 10 $751,000
194 Pegasus Analytic Innovations Salisbury, Connecticut 1 – 10 $615,000
195 3FG Software Ellington, Connecticut 1 – 10 $608,000
196 Go Opv Greenwich, Connecticut 1 – 10 $480,000
197 Yantic Fire Engine Yantic, Connecticut 1 – 10 $293,000

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