What ISC does

ISC ((주)아이에스시) is a South Korea-based semiconductor test equipment specialist founded in 2001 and listed on KOSDAQ (ticker: 095340), with headquarters in Seongnam-si, Gyeonggi-do. The company describes itself as a "Total Test Solution Provider" and focuses on the design, development, and manufacture of test sockets and adjacent testing equipment used to electrically validate semiconductor IC chips across 5G smartphones, autonomous vehicles, AI, big data, and smart factory end-markets. ISC's representative director is Kim Jeong-ryeol (김정렬), and the firm has 101-250 employees.

The core technology centers on test socket architecture for semiconductor final test. ISC pioneered the world's first commercialized silicone rubber (elastomer) socket, which uses a soft silicone contact material to protect packages while delivering an ultra-thin profile for high-speed signal transmission and minimal current loss. Alongside the elastomer socket, ISC produces Pogo Pin sockets (traditional spring-pin designs) and supports a broader product ecosystem including Burn-in Sockets (iSB), Thermal Control Units (iSTCU), Testers, EFEM (Equipment Front End Module), chemicals, and PCBs, organized under sub-brands iSC, iSB, iSP, and iSTCU. ISC emphasizes rapid development and small-volume, high-mix production capability for advanced package programs.

ISC operates a B2B hardware sales model, selling directly to semiconductor manufacturers and to IT, BT, and automotive electronics companies. Pricing is not publicly disclosed, which is typical for custom-spec B2B semiconductor equipment. The go-to-market relies on direct enterprise sales, an investor relations and press release cadence, and a customized-solution inquiry form on its website. Note: the source dataset also includes separate data points referencing a Canadian entity named "Information Services Corporation" (regulatory and registry services, Plenary Americas acquisition); these are not part of ISC's Korean semiconductor business and are not reflected in this description.

Name

ISC

Legal name

(주)아이에스시

Website

https://isc21.kr

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

101–250 employees

Short description

ISC is a South Korea-based KOSDAQ-listed (095340) semiconductor test socket and equipment manufacturer founded in 2001, serving chip makers in 5G, AI, automotive, and smart factory end-markets with proprietary elastomer socket technology and a Total Test Solution portfolio.

Ownership category

akta.pro rank

Product category

Semiconductor Test Equipment

NAICS

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Semiconductor Machinery Manufacturing (333242)

SIC

Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Semiconductors & Related Devices (3674)

akta.pro primary industry

Sockets, IC Sockets & Test/Programming Interconnects (HDAHAOAF)

akta.pro secondary industries

Test, Probe & Burn-In Equipment (Wafer Sort/Final Test) (HDAHAEAJ), Assembly & Packaging Services (Wirebond/Flip-Chip/FCBGA) (HDAHADAA)

Keywords

• Semiconductor test solutions
• Test socket manufacturing
• Burn-in socket technology
• Elastomer socket technology
• Semiconductor test equipment

Headquarters

HQ city

Seongnam

HQ country

South Korea

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Semiconductor Test Equipment and Solutions: Development and production of test sockets and related semiconductor testing equipment. Products include Test Socket, Burn-in Socket, Pogo Socket, Thermal Control Unit, Tester, EFEM, Chemical, and PCB for semiconductor, IT, BT, automotive and electronic component industries.
2. Registry Operations: Government registry services including operations, services, and technology solutions to help clients secure and manage information.
3. Technology Solutions: Global registry management solutions through Enterprise Registry Services Ltd. (ERS), offering customizable, automated, and end-to-end technological platforms such as RegSys. Revenue from system implementations and platform deployments across multiple jurisdictions.

Distribution channels3 records

Marketing channels3 records

Core offering

ISC develops and manufactures a complete portfolio of semiconductor test solutions, including test sockets (iSC, iSB, iSP), thermal control units (iSTCU), EFEM (Equipment Front End Modules), testers, chemicals, and PCBs. The company pioneered the world's first commercialized Silicone Rubber (Elastomer) Socket alongside traditional Pogo Pin Socket technology, serving semiconductor, IT, BT, automotive, and electronic component manufacturers.

Product overview

ISC is a Total Test Solution Provider for semiconductors, offering a comprehensive portfolio of test-related products. The core product line includes four main test socket variants: iSC (Test Socket), iSB (Burn-in Socket), iSP (Pogo Socket), and iSTCU (Thermal Control Unit). ISC pioneered the world's first commercialized Silicone Rubber Socket (Elastomer Socket) alongside traditional Pogo Pin Socket technology. Supporting the socket products, ISC also provides complementary equipment including Testers, EFEM (Equipment Front End Module), Chemical products, and PCB solutions. The company develops and produces all products to support semiconductor, IT, BT, automotive, and electronic component testing across the semiconductor package testing supply chain.

Differentiator

Problem solved

Functional benefit

Brands

• iSC: Test socket product line
• iSB
• iSP
• iSTCU

Products and services

• iSC (Test Socket) Test socket product line for semiconductor chip testing that connects test equipment to semiconductor packages, distinguishing functional chips from defective ones during final test.
• iSB (Burn-in Socket) Burn-in socket product line for semiconductor reliability testing during the burn-in process.
• iSP (Pogo Socket) Spring-pin based pogo socket product line for semiconductor testing applications.
• iSTCU (Thermal Control Unit) Thermal Control Unit product for managing temperature during semiconductor testing processes.
• Silicone Rubber Socket (Elastomer Socket) World's first commercialized silicone rubber-based test socket using soft silicone material that does not damage packages, with ultra-thin profile enabling excellent high-speed signal transmission and minimal current loss.
• Pogo Pin Socket Traditional spring-pin based test socket technology developed and produced by ISC alongside its silicone rubber socket solutions.
• EFEM (Equipment Front End Module) Equipment Front End Module for semiconductor manufacturing and testing automation workflows.
• Tester Testing equipment for semiconductor IC chip validation.
• Chemical Chemical products supporting semiconductor manufacturing and testing processes.
• PCB Printed circuit board products used in semiconductor testing applications.

Quantifiable outcome

• 4% revenue increase to $257.8 million in 2025
• +3 more outcomes

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Five partnerships are on record, tiered minor and core.

• MacKenzie Art GalleryminorGTM or Marketing Partner · 29 January 2026Community partnership as part of ISC Impact initiative, funding programs in mental health, LGBTQIA+ organizations, Indigenous art, fire relief, hospital foundations, and youth empowerment projects.
• Government of Ontario (Ministry of Environment, Conservation and Parks)coreStrategic or Co-development Partner · 18 August 2025Nine-year agreement to develop a new digital property records system for Ontario. Initiative aims to digitize environmental property records, improve data access, and support land development in Ontario.
• Neil Squire SocietyminorGTM or Marketing Partner · 30 June 2025$25,000 donation through ISC Impact program to fund digital learning kits for students with disabilities in schools across Saskatchewan. The kits provide adaptive technologies and learning supports designed to create more inclusive classroom environments.
• Principality of LiechtensteincoreStrategic or Co-development Partner · 28 November 2024Five-year agreement for delivery of a new digital commercial registry system powered by ISC's RegSys platform. Total contract value of CHF 6.2 million (approximately CA$10.0 million). System will power Liechtenstein's eHandelsregister with integrated features for registry submissions, searches, and document access.
• Bank of CanadacoreStrategic or Co-development Partner · 9 July 2024Five-year contract to develop and operate the online Customer Portal for the Bank Act Security Registry (BASR). Portal provides 24/7 access and real-time tracking for submissions and searches, offering users more efficient and convenient management of registrations.

Scale indicators8 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Leeno Industrial: Korean test socket manufacturer competing directly with ISC in semiconductor test sockets, including pogo-pin and elastomer-based socket technologies for IC final test. Highly comparable business model, product focus, and Korean customer base.
• Cohu: US-based supplier of test handlers, contactors, and interface solutions for semiconductor test, including elastomer and pogo-pin socket products. Directly comparable product category targeting the same semiconductor final test workflow as ISC.
• FormFactor: Leading supplier of probe cards, test sockets, and related interfaces for semiconductor wafer and final test. Overlaps with ISC in the test contactor/socket category, particularly in advanced-node and high-frequency applications.
• Yokowo Co., Ltd. Japanese manufacturer of test sockets and spring probes (pogo pins) for semiconductor IC testing. Competes with ISC in test contactor solutions for the global semiconductor test supply chain.
• Micronics Japan (MJC): Japanese producer of probe cards, test sockets, and other semiconductor test interfaces. Directly comparable in product category and target customer base within IC testing.

Emerging players

• Translarity: Emerging provider of advanced test socket and contactor technologies for semiconductor and AI chip testing, with focus on high-frequency and high-pin-count applications overlapping with ISC's elastomer socket roadmap.

Broad incumbents

• Advantest: Global leader in semiconductor automatic test equipment (ATE), including SoC and memory testers. A broad incumbent in the test value chain; ISC supplies complementary socket solutions into Advantest-tied test cells.
• Teradyne: Major US-based supplier of semiconductor test equipment across logic, memory, and analog. A broad incumbent; its test platform integrations represent an installed base opportunity for ISC's sockets.
• Chroma ATE: Taiwanese manufacturer of semiconductor and electronic test equipment, including testers and related solutions. Overlaps with ISC in serving semiconductor and electronics component test applications across Asia.

Others

• ISC (Information Services Corporation): Canadian registry and information management services company. Not a business peer but shares the ISC brand name, creating potential brand confusion; included here to flag the identity collision observed in the source data.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds2 records

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about ISC