{"id":"4b197dfa-8035-4e46-bfac-cbb9dbdb5bcc","slug":"gk-expertise","name":"GK Expertise","legalName":"GK Power Expertise Pvt. Ltd.","otherNames":["GK POWER EXPERTISE PVT LTD"],"website":"https://gkexpertise.com","roles":["manufacturer","service_provider"],"description":"Chennai-based company that makes numerical relays, control and relay panels and switchgear, and also offers electronic contract manufacturing (EMS) for OEMs. It also provides electrical testing, commissioning and automation services in India and the Middle East.","notes":"**Electronic contract manufacturing**\n- Product design and engineering, PCB fabrication and assembly (component sourcing, SMT, THT, PCBA), box build and system integration, testing and certification, mass production and lifecycle support.\n- Industries named for ECM: power, automation, railways, renewable energy.\n\n**Own products**\n- Numerical relays, electro-mechanical relays, control and relay panels, transformers, LV/HV switchgear, on-load tap changers.\n\n**Other services**\n- Testing and commissioning, protection relay testing, power system studies, transformer service, substation automation, solar EPC, EPLAN design, embedded software development, data center solutions.\n\n**Locations and export**\n- Office and manufacturing unit in Chennai, with a branch in Oman; serves India and the Middle East.","yearEstablished":null,"languages":[],"serviceArea":"India and the Middle East","engagement":{"type":"contact_only","how":"Enquiries go to enquiry@gkexpertise.com. A separate HR address (hr@gkexpertise.com) exists for jobs and campus matters only.","responseTime":null,"needs":["Product or assembly requirements (PCB design files, BOM)","Quantity","Intended industry or application"]},"city":"Chennai","cities":["Chennai"],"state":"Tamil Nadu","locations":[{"kind":"factory","address":"4th floor, 3/195, Mount Poonamallee Road, Parthasarathy Nagar, Manapakkam, Chennai, Tamil Nadu 600125"}],"identifiers":[],"credentials":[],"contacts":[{"channel":"email","value":"enquiry@gkexpertise.com","purpose":"general","who":"Enquiry desk","hours":null,"digital":true},{"channel":"phone","value":"+91 99940 54198","purpose":"general","who":"Enquiry","hours":null,"digital":false},{"channel":"phone","value":"044-22521450","purpose":"general","who":null,"hours":null,"digital":false}],"agentReachable":true,"hasPrivateContacts":false,"offerings":[{"id":"ffdeb626-9626-460d-845f-5dad8184f4eb","kind":"custom_production","title":"Electronic Contract Manufacturing (EMS)","description":"End-to-end electronics design and manufacturing for OEMs, from PCB design to mass production and lifecycle support.","notes":"- Product design and engineering: schematic and PCB design\n- PCB fabrication and assembly: component sourcing, SMT, THT, PCBA\n- Box build and system integration: enclosures, wiring, firmware, complete product assembly\n- Testing and certification: functional, environmental, EMC and quality validation\n- Mass production and lifecycle support: supply chain, delivery, repair and maintenance","minOrder":null,"leadTime":null,"pricing":"quote only"},{"id":"ad19b934-8ffd-48f4-8b2b-2a6ec582a3a0","kind":"product","title":"Numerical relays, control and relay panels, switchgear","description":"Protection and control equipment made in the company's own factory units.","notes":"- Also lists electro-mechanical relays, transformers, LV/HV switchgear and on-load tap changers.","minOrder":null,"leadTime":null,"pricing":null}],"sources":[{"url":"https://www.gkexpertise.com/electronic-contract-manufacturing/","fetchedAt":"2026-10-11"},{"url":"https://gkexpertise.com/","fetchedAt":"2026-10-11"}],"verifiedAt":null,"lastUpdated":"2026-10-11","lastVisited":"2026-10-11"}