| 4P Electronics | turnkey | VN | mid high | standard volume | $$ | ISO 9001 IATF 16949 | low |
| Absolute EMS | assembly | US | proto npi mid | quick standard | $$$ | ISO 9001 AS9100 ISO 13485 | medium |
| Accurate Circuit Engineering (ACE) | fab | US | proto npi | quick standard | $$$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 | medium |
| Advanced Assembly | assembly | US | proto npi | quick standard | $$$ | ISO 9001 ITAR | medium |
| Advanced Circuitry International (ACI) | fab | US | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 ITAR | low |
| Advanced Circuits | turnkey | US | proto npi mid | quick standard | $$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 MIL-PRF-55110 UL | high |
| AISLER(broker) | turnkey | DE | proto | standard | $$ | | medium |
| ALL Circuits | assembly | FR TN MX | mid high | standard volume | $$$ | ISO 9001 IATF 16949 | low |
| All Flex Solutions | turnkey | US | proto npi mid high | quick standard volume | $$$$ | ISO 9001 ISO 13485 AS9100 ITAR | medium |
| ALLPCB | turnkey | CN | proto npi mid | quick standard | $ | ISO 9001 UL | medium |
| AlphaEMS | assembly | US | proto npi mid | quick standard | $$$ | ISO 9001 | low |
| Altaflex | fab | US | proto npi mid | quick standard | $$$$ | ISO 9001 | low |
| American Standard Circuits | fab | US | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 | medium |
| Aoshikang (AKM) | fab | CN | mid high | standard volume | $$ | ISO 9001 IATF 16949 UL | low |
| APCT | fab | US | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 NADCAP | medium |
| Apex Circuit (Thailand) | fab | TH | mid high | standard volume | $$ | ISO 9001 IATF 16949 UL | low |
| Ascent Circuits | fab | IN | npi mid | standard | $$ | ISO 9001 AS9100 UL | low |
| Aspocomp | fab | FI | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 UL | medium |
| Assel | assembly | PL | npi mid | standard | $$ | ISO 9001 ISO 13485 | low |
| Asteelflash | assembly | TN DE CZ MX US | npi mid high | standard volume | $$ | ISO 9001 IATF 16949 ISO 13485 | low |
| AT&S | fab | AT IN CN KR MY | npi mid high | standard volume | $$$$ | ISO 9001 IATF 16949 ISO 13485 UL | high |
| Axiom Manufacturing Services | assembly | GB | npi mid | standard | $$$ | ISO 9001 ISO 13485 AS9100 | medium |
| Bay Area Circuits | fab | US | proto npi | quick standard | $$$ | ISO 9001 ITAR UL | medium |
| Becker & Müller | fab | DE | proto npi mid | quick standard | $$$ | ISO 9001 UL | low |
| Bema Electronics | assembly | US | proto npi mid | quick standard | $$$ | ISO 9001 | low |
| Benchmark Electronics | assembly | US MX MY TH NL RO | npi mid high | standard volume | $$$ | ISO 9001 ISO 13485 AS9100 ITAR NADCAP | medium |
| Bestronics | assembly | US | proto npi mid | quick standard | $$$ | ISO 9001 ISO 13485 | low |
| Beta LAYOUT (PCB-POOL) | turnkey | DE | proto npi | quick standard | $$$ | ISO 9001 | medium |
| Bittele Electronics (7pcb)(broker) | turnkey | CA CN | proto npi mid | quick standard | $$ | ISO 9001 | medium |
| Cal-Comp Electronics | assembly | TH PH BR | high | volume | $$ | ISO 9001 IATF 16949 | low |
| Calumet Electronics | fab | US | npi mid | standard | $$$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 NADCAP NIST 800-171 | medium |
| Candor Industries | turnkey | CA | proto npi mid | quick standard | $$$ | ISO 9001 UL | medium |
| Career Technology | fab | TW CN | high | volume | $$ | ISO 9001 IATF 16949 UL | low |
| Celestica | assembly | CA MX RO IE MY TH CN | npi mid high | standard volume | $$$ | ISO 9001 ISO 13485 AS9100 IATF 16949 | medium |
| Centum Electronics | assembly | IN | npi mid | standard | $$ | ISO 9001 AS9100 | low |
| Chemigraphic | assembly | GB | npi mid | standard | $$$ | ISO 9001 ISO 13485 AS9100 | low |
| Chin-Poon Industrial | fab | TW TH | high | volume | $$ | ISO 9001 IATF 16949 UL | medium |
| Cicor | turnkey | CH DE GB ID CN | npi mid high | standard volume | $$$ | ISO 9001 ISO 13485 AS9100 IATF 16949 | medium |
| Cimulec | fab | FR | proto npi mid | standard | $$$$ | ISO 9001 AS9100 | low |
| Circuibras | fab | BR | mid high | standard volume | $$$ | ISO 9001 UL | low |
| Circuit Systems India | fab | IN | mid high | standard volume | $$ | ISO 9001 IATF 16949 UL | low |
| CircuitHub(broker) | turnkey | US | proto npi mid | quick standard | $$$ | ISO 9001 | medium |
| Cirexx International | turnkey | US | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 MIL-PRF-55110 | medium |
| Cistelaier | fab | IT | npi mid | standard | $$$ | ISO 9001 AS9100 | low |
| CMK Corporation | fab | JP TH CN | high | volume | $$ | ISO 9001 IATF 16949 UL | medium |
| Colonial Circuits | fab | US | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 NADCAP | medium |
| Compal Electronics | assembly | TW CN VN | high | volume | $$ | ISO 9001 IATF 16949 ISO 13485 | low |
| Compeq Manufacturing | fab | TW CN TH | mid high | standard volume | $$ | ISO 9001 IATF 16949 UL | medium |
| Contag | fab | DE | proto npi | quick standard | $$$ | ISO 9001 UL | medium |
| Creation Technologies | assembly | CA US MX CN | npi mid | standard | $$$ | ISO 9001 ISO 13485 AS9100 ITAR | medium |
| Cyient DLM | assembly | IN | npi mid | standard | $$ | ISO 9001 AS9100 ISO 13485 | low |
| Daeduck Electronics | fab | KR | mid high | standard volume | $$$ | ISO 9001 IATF 16949 UL | medium |
| Dixon Technologies | assembly | IN | high | volume | $$ | ISO 9001 | low |
| Ducommun | assembly | US MX | npi mid | standard | $$$$ | ISO 9001 AS9100 ITAR NADCAP | medium |
| Dyconex (MST) | fab | CH | proto npi mid | standard | $$$$ | ISO 9001 ISO 13485 AS9100 | medium |
| Dynamic Electronics | fab | TW CN | mid high | standard volume | $$ | ISO 9001 IATF 16949 UL | low |
| Eagle Circuits | fab | US | proto npi mid | quick standard | $$$ | ISO 9001 ITAR UL | medium |
| East West Manufacturing(broker) | assembly | US VN CN MX | mid high | standard volume | $$ | ISO 9001 ISO 13485 | low |
| EE Technologies | assembly | US | proto npi mid high | quick standard volume | $$$ | ISO 9001 | medium |
| Eldos | fab | PL | proto npi mid | quick standard | $$$ | ISO 9001 UL | low |
| Elecrow(broker) | turnkey | CN | proto npi | quick standard | $ | | medium |
| Elmatica(broker) | fab | NO | npi mid high | standard volume | $$ | ISO 9001 AS9100 | medium |
| Eltek | fab | IL | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 MIL-PRF-31032 NADCAP ISO 13485 | medium |
| Elvia PCB | fab | FR | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 UL | medium |
| Entech Electronics | assembly | AU | npi mid | standard | $$$ | ISO 9001 | low |
| éolane | assembly | FR MA CN | npi mid high | standard volume | $$$ | ISO 9001 ISO 13485 IATF 16949 AS9100 | low |
| Epec Engineered Technologies(broker) | turnkey | US | npi mid high | standard volume | $$ | ISO 9001 ITAR UL | medium |
| Eurocircuits | turnkey | BE HU DE | proto npi mid | quick standard | $$$ | ISO 9001 UL | high |
| Exception PCB | fab | GB | proto npi mid | quick standard | $$$ | ISO 9001 AS9100 UL | medium |
| Extel Technologies | assembly | AU | proto npi mid | quick standard | $$$ | ISO 9001 | low |
| Fabrinet | assembly | TH CN US | npi mid high | standard volume | $$ | ISO 9001 ISO 13485 IATF 16949 | medium |
| FastlinkPCB (Fastlink Electronics) | turnkey | CN | proto npi mid high | quick standard volume | $$ | ISO 9001 ISO 14001 | medium |
| Fideltronik | assembly | PL | npi mid high | standard volume | $$ | ISO 9001 ISO 13485 IATF 16949 | low |
| Fine-Line Circuits | fab | IN | proto npi mid | quick standard | $$ | ISO 9001 UL | low |
| Fineline Global(broker) | fab | DE GB IL | npi mid high | standard volume | $$ | ISO 9001 AS9100 IATF 16949 | medium |
| Firan Technology Group (FTG) | fab | CA US CN | npi mid | standard | $$$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 NADCAP | medium |
| Flex | turnkey | US MX CN IN MY SG RO PL HU BR | npi mid high | standard volume | $$$ | ISO 9001 ISO 13485 IATF 16949 AS9100 | medium |
| Flexium Interconnect | fab | TW CN | high | volume | $$ | ISO 9001 IATF 16949 UL | low |
| Founder PCB | fab | CN | mid high | standard volume | $$ | ISO 9001 IATF 16949 UL | low |
| Foxconn (Hon Hai) | assembly | CN IN VN MX US CZ BR | high | volume | $$ | ISO 9001 IATF 16949 ISO 13485 | medium |
| Gatema PCB | fab | CZ | proto npi | quick standard | $$$ | ISO 9001 UL | low |
| Genus Electrotech | turnkey | IN | mid high | standard volume | $$ | ISO 9001 IATF 16949 | low |
| Goertek | assembly | CN VN | high | volume | $$ | ISO 9001 IATF 16949 | low |
| Gold Circuit Electronics (GCE) | fab | TW CN TH | mid high | standard volume | $$ | ISO 9001 IATF 16949 UL | medium |
| Gorilla Circuits | turnkey | US | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 | medium |
| GPC Electronics | assembly | AU | npi mid | standard | $$$ | ISO 9001 ISO 13485 AS9100 | low |
| GPV (incl. Enics) | assembly | DK EE SK MX LK CN TH | npi mid high | standard volume | $$$ | ISO 9001 ISO 13485 IATF 16949 | low |
| Graphic PLC | fab | GB | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 UL | medium |
| Green Circuits | assembly | US | proto npi mid | quick standard | $$$ | ISO 9001 ISO 13485 ITAR | medium |
| GreenSource Fabrication | fab | US | proto npi mid | standard | $$$$ | ISO 9001 AS9100 ITAR | low |
| GSPK Circuits | fab | GB | proto npi mid | quick standard | $$$ | ISO 9001 UL | low |
| Hana Microelectronics | assembly | TH CN | mid high | standard volume | $$ | ISO 9001 IATF 16949 ISO 13485 | medium |
| HansaMatrix | assembly | LV | npi mid | standard | $$ | ISO 9001 ISO 13485 | low |
| HANZA | assembly | SE EE CZ DE CN | npi mid high | standard volume | $$$ | ISO 9001 ISO 13485 IATF 16949 | low |
| Holaday Circuits | fab | US | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 | low |
| Hughes Circuits | fab | US | proto npi mid | quick standard | $$$ | ISO 9001 ITAR UL | low |
| Hunter Technology | turnkey | US | proto npi mid | quick standard | $$$ | ISO 9001 ITAR | low |
| Ibiden | fab | JP MY PH | high | volume | $$$$ | ISO 9001 IATF 16949 UL | medium |
| ILFA | fab | DE | proto npi mid | quick standard | $$$$ | ISO 9001 UL | medium |
| Imagineering(broker) | turnkey | US | proto npi mid | quick standard | $$ | ISO 9001 ITAR | medium |
| Incap | assembly | EE IN SK GB | npi mid high | standard volume | $$ | ISO 9001 ISO 13485 ISO 14001 | low |
| Integrated Micro-Electronics (IMI) | assembly | PH BG RS MX CN | mid high | standard volume | $$ | ISO 9001 IATF 16949 ISO 13485 | medium |
| Interflex | fab | KR | high | volume | $$$ | ISO 9001 IATF 16949 | low |
| Inventec | assembly | TW CN CZ MX | high | volume | $$ | ISO 9001 | low |
| Invotec | fab | GB | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 UL | medium |
| Ionics EMS | assembly | PH | npi mid high | standard volume | $$ | ISO 9001 IATF 16949 ISO 13485 | low |
| Isu Petasys | fab | KR CN | mid high | standard volume | $$ | ISO 9001 UL | medium |
| Jabil | assembly | US MX MY SG CN IN VN PL HU UA BR | npi mid high | standard volume | $$$ | ISO 9001 ISO 13485 IATF 16949 AS9100 ITAR | medium |
| Jaltek | assembly | GB | proto npi mid | quick standard | $$$ | ISO 9001 AS9100 ISO 13485 | medium |
| Jemstech | assembly | ZA | npi mid | standard | $$$ | ISO 9001 | low |
| JLCPCB | turnkey | CN | proto npi mid high | quick standard volume | $ | ISO 9001 IATF 16949 UL ISO 14001 | high |
| Kaynes Technology | assembly | IN | npi mid high | standard volume | $$ | ISO 9001 IATF 16949 AS9100 ISO 13485 | low |
| KCE Electronics | fab | TH | mid high | standard volume | $$ | ISO 9001 IATF 16949 UL | high |
| Key Tronic | assembly | US MX CN VN | mid high | standard volume | $$ | ISO 9001 ISO 13485 IATF 16949 | medium |
| Kimball Electronics | assembly | US MX CN PL TH | mid high | standard volume | $$$ | ISO 9001 ISO 13485 IATF 16949 | medium |
| Kinwong Electronic | fab | CN TH | mid high | standard volume | $$ | ISO 9001 IATF 16949 UL ISO 13485 | medium |
| Kitron | assembly | NO SE LT PL CN US IN | npi mid high | standard volume | $$$ | ISO 9001 ISO 13485 AS9100 ITAR | medium |
| Kontron Electronics (ex-Katek) | assembly | DE AT MY | npi mid high | standard volume | $$$ | ISO 9001 ISO 13485 IATF 16949 | low |
| Korea Circuit | fab | KR | high | volume | $$$ | ISO 9001 IATF 16949 | low |
| KSG | fab | DE | npi mid high | standard volume | $$$ | ISO 9001 IATF 16949 UL | medium |
| Kyocera (organic packages and PCBs) | fab | JP VN | high | volume | $$$$ | ISO 9001 IATF 16949 | low |
| Lab Circuits | fab | ES | proto npi mid | quick standard | $$$ | ISO 9001 AS9100 UL | low |
| Lacroix Electronics | assembly | FR PL TN MX | mid high | standard volume | $$$ | ISO 9001 IATF 16949 ISO 13485 | low |
| LeitOn | turnkey | DE | proto npi mid | quick standard | $$$ | ISO 9001 UL | medium |
| Lenthor Engineering | turnkey | US | proto npi mid | standard | $$$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 ISO 13485 | medium |
| LG Innotek | fab | KR VN | high | volume | $$$$ | ISO 9001 IATF 16949 | low |
| Lintek | fab | AU | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 | medium |
| Luxshare Precision | assembly | CN VN | high | volume | $$ | ISO 9001 IATF 16949 | low |
| Mack Technologies | assembly | US | npi mid | standard | $$$ | ISO 9001 ISO 13485 AS9100 ITAR | medium |
| MacroFab(broker) | turnkey | US MX | proto npi mid | quick standard | $$$ | ISO 9001 ITAR | medium |
| Meiko Electronics | turnkey | JP VN CN | mid high | standard volume | $$ | ISO 9001 IATF 16949 UL | medium |
| Merlin Circuit Technology | fab | GB | proto npi mid | quick standard | $$$ | ISO 9001 AS9100 UL | low |
| MFLEX (DSBJ) | fab | CN | high | volume | $$ | ISO 9001 IATF 16949 UL | low |
| Micropress | fab | BR | mid high | standard volume | $$$ | ISO 9001 IATF 16949 UL | low |
| Milwaukee Electronics | assembly | US MX | npi mid | standard | $$$ | ISO 9001 ISO 13485 ITAR | medium |
| Minco | fab | US | npi mid high | standard volume | $$$$ | ISO 9001 AS9100 ISO 13485 ITAR | medium |
| Mirgor | assembly | AR | high | volume | $$$ | ISO 9001 IATF 16949 | low |
| Multi-CB(broker) | fab | DE | proto npi mid | quick standard | $$ | ISO 9001 UL | medium |
| Multilayer Technology | fab | US | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 NADCAP | medium |
| Murrietta Circuits | turnkey | US | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 ITAR | medium |
| Nan Ya PCB | fab | TW CN | high | volume | $$$ | ISO 9001 IATF 16949 UL | medium |
| Naprotek | assembly | US | proto npi mid | standard | $$$$ | ISO 9001 AS9100 ITAR | low |
| NationGate | assembly | MY | mid high | standard volume | $$ | ISO 9001 IATF 16949 | low |
| NCAB Group(broker) | fab | SE CN | npi mid high | standard volume | $$ | ISO 9001 UL IATF 16949 | high |
| NEO Tech | assembly | US | npi mid | standard | $$$ | ISO 9001 AS9100 ISO 13485 ITAR | medium |
| Neways Electronics | assembly | NL CZ SK CN | npi mid high | standard volume | $$$ | ISO 9001 ISO 13485 IATF 16949 | medium |
| Newbury Electronics | turnkey | GB | proto npi mid | quick standard | $$$ | ISO 9001 UL | medium |
| NexLogic Technologies | assembly | US | proto npi mid | quick standard | $$$ | ISO 9001 ITAR | low |
| NextPCB | turnkey | CN | proto npi mid | quick standard | $ | ISO 9001 UL | medium |
| Nippon Mektron (NOK) | fab | JP TH CN | high | volume | $$$ | ISO 9001 IATF 16949 UL | medium |
| Nortech Systems | assembly | US MX CN | npi mid | standard | $$$ | ISO 9001 ISO 13485 AS9100 ITAR | medium |
| NOTE | assembly | SE EE GB CN | npi mid | standard | $$$ | ISO 9001 ISO 13485 | medium |
| Orbit One | assembly | SE PL | npi mid | standard | $$$ | ISO 9001 ISO 13485 | low |
| OSH Park(broker) | fab | US | proto | standard | $$ | | high |
| PCB Technologies | turnkey | IL | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 ISO 13485 MIL-PRF-31032 NADCAP | medium |
| PCBCart | turnkey | CN | proto npi mid high | quick standard volume | $$ | ISO 9001 IATF 16949 UL | medium |
| PCBWay | turnkey | CN | proto npi mid | quick standard | $ | ISO 9001 UL | high |
| Pegatron | assembly | TW CN ID VN IN MX | high | volume | $$ | ISO 9001 IATF 16949 | medium |
| Pioneer Circuits | fab | US | npi mid | standard | $$$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 MIL-PRF-55110 NADCAP | medium |
| Plexus | assembly | US MX MY CN TH GB RO | npi mid high | standard volume | $$$ | ISO 9001 ISO 13485 AS9100 ITAR | medium |
| Positivo Tecnologia | assembly | BR | high | volume | $$$ | ISO 9001 | low |
| PRIDE Industries | assembly | US | npi mid high | standard volume | $$$ | ISO 9001 ISO 13485 AS9100 ITAR | medium |
| Printed Circuits (Minneapolis) | fab | US | npi mid | standard | $$$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 | low |
| Prototron Circuits | fab | US | proto npi mid | quick standard | $$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 | medium |
| Quanta Computer | assembly | TW CN TH US | high | volume | $$ | ISO 9001 | medium |
| Rigiflex Technology | fab | US | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 | low |
| Rush PCB | turnkey | US | proto npi mid | quick standard | $$$ | ISO 9001 ITAR AS9100 ISO 13485 | medium |
| Samsung Electro-Mechanics | fab | KR VN | high | volume | $$$$ | ISO 9001 IATF 16949 | medium |
| San Francisco Circuits(broker) | turnkey | US | proto npi mid | quick standard | $$$ | ISO 9001 ITAR | medium |
| Sanmina | turnkey | US MX IN CN MY IL | npi mid high | standard volume | $$$ | ISO 9001 AS9100 ISO 13485 IATF 16949 ITAR MIL-PRF-31032 NADCAP | medium |
| Sat Nusapersada | assembly | ID | mid high | standard volume | $$ | ISO 9001 | low |
| Saturn Electronics | fab | US | npi mid high | quick standard volume | $$$ | ISO 9001 IATF 16949 ITAR UL | medium |
| Scanfil | assembly | FI PL EE DE HU CN US | npi mid high | standard volume | $$$ | ISO 9001 ISO 13485 IATF 16949 | medium |
| Schweizer Electronic | fab | DE CN | npi mid high | standard volume | $$$ | ISO 9001 IATF 16949 UL | medium |
| Screaming Circuits | assembly | US | proto npi | quick standard | $$$ | ISO 9001 ITAR | high |
| Seeed Studio Fusion(broker) | turnkey | CN | proto npi mid | quick standard | $ | ISO 9001 | medium |
| SFO Technologies (NeST) | turnkey | IN | npi mid | standard | $$ | ISO 9001 AS9100 ISO 13485 | low |
| Shennan Circuits (SCC) | fab | CN | npi mid high | standard volume | $$ | ISO 9001 IATF 16949 UL AS9100 | medium |
| Shenzhen Fastprint | fab | CN | proto npi mid high | quick standard volume | $$ | ISO 9001 IATF 16949 UL AS9100 | medium |
| Shinko Electric Industries | fab | JP | high | volume | $$$$ | ISO 9001 | medium |
| Sierra Circuits | turnkey | US | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 ITAR ISO 13485 MIL-PRF-31032 MIL-PRF-55110 | high |
| SigmaTron International | assembly | US MX CN VN | npi mid high | standard volume | $$ | ISO 9001 ISO 13485 IATF 16949 | medium |
| SIIX | assembly | JP PH TH VN | high | volume | $$ | ISO 9001 IATF 16949 | low |
| Simmtech | fab | KR MY | high | volume | $$$ | ISO 9001 IATF 16949 | medium |
| SMS Electronics | assembly | GB | npi mid | standard | $$$ | ISO 9001 AS9100 ISO 13485 | low |
| SMTC | assembly | CA MX CN US | npi mid high | standard volume | $$$ | ISO 9001 ISO 13485 IATF 16949 ITAR | low |
| Somacis | fab | IT CN US | proto npi mid high | quick standard volume | $$$ | ISO 9001 AS9100 IATF 16949 UL ITAR | medium |
| Sparqtron | assembly | US | proto npi mid | quick standard | $$$ | ISO 9001 ISO 13485 | medium |
| Spirit Circuits | fab | GB | proto npi mid | quick standard | $$$ | ISO 9001 UL | medium |
| Stevenage Circuits | fab | GB | proto npi mid | quick standard | $$$ | ISO 9001 AS9100 UL | low |
| Summit Interconnect | fab | US CA | proto npi mid | quick standard | $$$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 NADCAP | medium |
| Sunstone Circuits | fab | US | proto npi | quick standard | $$$ | ISO 9001 ITAR UL | high |
| Suntak Technology | fab | CN | mid high | standard volume | $$ | ISO 9001 IATF 16949 UL | low |
| SVI Public Company | assembly | TH SK | npi mid high | standard volume | $$ | ISO 9001 ISO 13485 IATF 16949 | medium |
| Sypris Electronics | assembly | US | npi mid | standard | $$$$ | ISO 9001 AS9100 ITAR | low |
| Syrma SGS Technology | assembly | IN | npi mid high | standard volume | $$ | ISO 9001 IATF 16949 ISO 13485 | low |
| Tata Electronics | assembly | IN | high | volume | $$ | ISO 9001 | low |
| Team Precision | assembly | TH | npi mid | standard | $$ | ISO 9001 IATF 16949 | low |
| TQ-Group | assembly | DE | npi mid | standard | $$$ | ISO 9001 ISO 13485 AS9100 IATF 16949 | medium |
| Trackwise Designs | fab | GB | npi mid | standard | $$$$ | ISO 9001 AS9100 | low |
| Trax Interconnect | fab | ZA | proto npi mid | quick standard | $$$ | ISO 9001 | low |
| Tripod Technology | fab | TW CN TH | mid high | standard volume | $$ | ISO 9001 IATF 16949 UL | medium |
| TS PCB Techno-Service | fab | PL | proto npi mid | quick standard | $$$ | ISO 9001 UL | low |
| TT Electronics IMS | assembly | US MX CN | npi mid high | standard volume | $$$ | ISO 9001 ISO 13485 AS9100 ITAR | low |
| TTM Technologies | fab | US CA CN MY | npi mid high | quick standard volume | $$$$ | ISO 9001 AS9100 ITAR MIL-PRF-31032 MIL-PRF-55110 NADCAP IATF 16949 ISO 13485 | high |
| Unimicron | fab | TW CN | mid high | standard volume | $$$ | ISO 9001 IATF 16949 UL | medium |
| Unimicron Germany | fab | DE | npi mid | standard | $$$ | ISO 9001 IATF 16949 UL | medium |
| Unitech Printed Circuit Board | fab | TW CN | mid high | standard volume | $$ | ISO 9001 IATF 16949 UL | low |
| USI (Universal Scientific Industrial) | assembly | CN TW VN MX | mid high | standard volume | $$ | ISO 9001 IATF 16949 ISO 13485 | medium |
| Valley Services Electronics (VSE) | assembly | US | proto npi mid | quick standard | $$$ | ISO 9001 ISO 13485 | medium |
| Variass | assembly | NL | npi mid | standard | $$$ | ISO 9001 ISO 13485 | low |
| Venture Corporation | assembly | SG MY | npi mid high | standard volume | $$ | ISO 9001 ISO 13485 IATF 16949 | medium |
| Vestel | assembly | TR | high | volume | $$ | ISO 9001 IATF 16949 | low |
| Vexos | assembly | CA US CN VN | npi mid high | standard volume | $$ | ISO 9001 ISO 13485 | low |
| Victory Giant Technology | fab | CN TH | mid high | standard volume | $$ | ISO 9001 IATF 16949 UL | medium |
| Videoton | assembly | HU | mid high | standard volume | $$ | ISO 9001 IATF 16949 ISO 13485 | low |
| Vital Systems | assembly | US | proto npi mid | quick standard | $$$ | ISO 9001 | medium |
| VS Industry | assembly | MY | high | volume | $$ | ISO 9001 ISO 13485 | low |
| WellPCB | turnkey | CN | proto npi mid | quick standard | $ | ISO 9001 UL | low |
| Whizz Systems | assembly | US | proto npi mid | quick standard | $$$ | ISO 9001 AS9100 ITAR | low |
| Wilson Process Systems | assembly | GB | npi mid | standard | $$$ | ISO 9001 ISO 13485 AS9100 | low |
| Wistron | assembly | TW CN VN CZ MX | high | volume | $$ | ISO 9001 IATF 16949 | medium |
| Würth Elektronik Circuit Board Technology | fab | DE | proto npi mid | quick standard | $$$ | ISO 9001 IATF 16949 UL ISO 14001 | high |
| WUS Printed Circuit | fab | CN TW TH | mid high | standard volume | $$ | ISO 9001 IATF 16949 UL | medium |
| Zhen Ding Technology (ZDT) | fab | TW CN | high | volume | $$ | ISO 9001 IATF 16949 UL | medium |
| Zollner Elektronik | assembly | DE HU RO CN CR US TN | npi mid high | standard volume | $$$ | ISO 9001 ISO 13485 IATF 16949 AS9100 ITAR | medium |