GCT Semiconductor

What GCT Semiconductor does

GCT Semiconductor is a fabless semiconductor company founded in 1998 and headquartered in San Jose, California, with an R&D subsidiary (Advanced Core Tech) in Seoul, South Korea. The company designs system-on-chip (SoC) solutions that integrate radio frequency, baseband modem, and digital signal processing functions for 4G LTE, 5G, IoT, and satellite/non-terrestrial network (NTN) connectivity. Core technology includes a proprietary direct-conversion (zero-IF) CMOS architecture, multi-mode LTE chipsets supporting 450 MHz spectrum (GDM7243SL), 4x4 MIMO LTE-Advanced capability, and a hybrid cellular+Sigfox IoT chip (GDM7243i). The product portfolio spans 5G chipsets, 4G LTE chipsets, the FCC-certified Luna Cat-12 Band 54 module, and SGP.32 eSIM solutions developed with Giesecke+Devrient.

The company became publicly traded in March 2024 via a SPAC business combination with Concord Acquisition Corp III (NYSE: GCTS), and began commercial shipments of its 5G chipset in January 2026. Revenue is generated through hardware sales of chips and modules to OEMs/ODMs (Samsung, NETGEAR, Kyocera, Orbic, Huawei) and wireless carriers (Verizon, Sprint/Boost, MetroPCS, LGU+, Yota), supplemented by chipset licensing (including a January 2026 agreement with a major satellite provider), reference design services, and a regional distributor network across China, Taiwan, Japan, and Korea. The customer base spans fixed wireless access gateways, mobile hotspots, IoT device makers, satellite communications providers (Skylo, Globalstar, Iridium), aviation connectivity (Gogo, Airspan 5G ATG), and mission-critical infrastructure (450 MHz Alliance, Saudi Aramco).

Q1 2026 revenue was $1.9 million (287% YoY growth) with 3,000 5G chipsets shipped; FY2025 full-year revenue was $2.9 million, reflecting a 69% YoY decline during the transition period. The company reports a net loss of $9.9 million for Q1 2026 (improving from prior-year loss) and targets EBITDA breakeven possibly by Q1 2027. With ~$461 million enterprise value at listing and ongoing capital raises (~$21.7 million in 2025), the business is in early commercialization with a heavily partnership-driven go-to-market model and a strategic narrative pivot to positioning its connectivity chipsets as the wireless layer for AI-edge devices.

Name

GCT Semiconductor

Legal name

GCT Semiconductor Holding, Inc.

Website

https://gctsemi.com

Company type

Public

Founded year

1998

Operating status

Operating

Headcount range

101–250 employees

Short description

GCT Semiconductor is a fabless semiconductor company that designs 4G LTE, 5G, IoT, and satellite/NTN system-on-chip solutions for OEMs, ODMs, wireless carriers, satellite providers, and aviation/defense customers. Founded in 1998, publicly listed on NYSE (GCTS) since March 2024, now in early 5G commercialization.

Ownership category

akta.pro rank

Product category

Wireless Semiconductor Chipsets

NAICS

Semiconductor and Related Device Manufacturing (334413)

SIC

Semiconductors & Related Devices (3674)

akta.pro primary industry

Mobile & Wireless Connectivity SoCs (Modem/Wi‑Fi/Bluetooth/GNSS) (HDAHABAA)

akta.pro secondary industry

Mobile Chipsets & Modems (Smartphone SoCs, Baseband) (CRACALAC)

Keywords

• 4G LTE chipsets
• 5G chipsets
• Cellular IoT modules
• NTN satellite solutions
• Fabless semiconductors

Headquarters

HQ city

San Jose

HQ country

United States

HQ region

North America

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Semiconductor Chip and Module Sales: GCT generates primary revenue from selling its 4G LTE and 5G semiconductor chips and modules to OEMs, ODMs, device manufacturers, and wireless carriers. Revenue is derived from both initial chip sales and ongoing volume orders as customers progress through integration, certification, and deployment planning.
2. Chipset Licensing: GCT licenses its 5G and 4G chipset portfolio to partners, including satellite communications providers, enabling integration into their user equipment. This establishes pathways for future chipset sales as licensees commercialize products using GCT technology.
3. Reference Design Services: GCT provides reference designs built around its 5G and 4G chipsets to help partners expedite development of user equipment, creating additional revenue streams through design services and component sales.

Go-to-market motion3 records

Distribution channels4 records

Marketing channels6 records

Core offering

GCT Semiconductor is a fabless designer of 4G LTE and 5G cellular chipsets, plus reference platforms and modules, sold to device OEMs, ODMs, module makers, and mobile network operators. Its portfolio also includes IoT chipsets with Sigfox support, satellite/NTN-enabled silicon, and selected chipset IP licensing.

Product overview

GCT Semiconductor is a fabless semiconductor company that designs and supplies advanced wireless connectivity solutions. The product portfolio centers on 5G and 4G LTE system-on-chip (SoC) solutions that integrate radio frequency, baseband modem and digital signal processing functions. The core offerings include 5G chipsets for next-generation connectivity (supporting terrestrial, satellite, and NTN networks), 4G LTE chipsets for current generation devices, and specialized IoT solutions like the GDM7243i hybrid cellular/Sigfox chip and GDM7243SL multi-mode 450 MHz chipset. The company also provides module-level products including the Luna Cat-12 LTE Module for Band 54, SGP.32 eSIM solutions (with Giesecke+Devrient), and chipset licensing services for satellite communications providers. These products serve diverse applications spanning smartphones, tablets, hotspots, routers, M2M/IoT devices, fixed wireless access, automotive, and emerging AI-edge computing use cases.

Differentiator

Problem solved

Functional benefit

Products and services

• 5G Chipsets

Quantifiable outcome

• 58% sequential increase in 5G chipset shipments to 3,000 units in Q1 2026
• +3 more outcomes

Named customers11 records

Segments6 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

Feature6 records

Partnerships

16 partnerships are on record, tiered core, major and minor.

• MaxLinear, Inc.coreTechnology or Integration · 27 May 2026Strategic partnership to develop integrated 5G fixed wireless access (FWA) gateways and converged gateways for consumer and enterprise applications. Combines MaxLinear's Wi-Fi and network processing technology with GCT's cellular modem capabilities into pre-integrated AnyWAN gateway platforms. Joint solutions demonstrated at Computex Taipei June 2026, targeting the rapidly growing FWA market where cellular data rates exceed gigabit speeds.
• Skylo TechnologiescoreTechnology or Integration · 11 February 2026Partnership to advance global satellite connectivity for next-generation cellular IoT devices. Companies will jointly pursue chip and module certification to enable multi-use devices with ubiquitous connectivity by accessing Skylo's network spanning 36 countries and 70 million square kilometers when terrestrial connectivity is unavailable. Integrates GCT's 3GPP-compliant silicon with Skylo's satellite network.
• Iridium CommunicationsmajorTechnology or Integration · 4 June 2025MOU to collaborate on integrating Iridium's NTN Direct service into GCT's chipset for satellite-enabled IoT applications. GCT plans to enhance its advanced GDM7243SL 4G/5G chipset to support Iridium NTN NB-IoT, developing new NB-IoT chipset supporting 3GPP Release 19 to expand satellite technology into 5G networks.
• Giesecke+Devrient (G+D)majorTechnology or Integration · 22 May 2025Partnership to launch innovative SGP.32 eSIM solution with Integrated Profile Activation Device (IPAd) support for multi-network IoT devices. G+D is developer of the first GSMA SGP.32 fully-certified product, combined with GCT's semiconductor solutions for IoT connectivity.
• Orbic North AmericamajorOEM/ Whitelabel/ Licensing Partner · 16 April 2025LOI signed to jointly develop and supply Orbic-branded mobile hotspot and FWA gateway utilizing Verizon-certified 5G module based on GCT's new 5G chipset. Framework includes terms related to volume purchases for supply to Verizon and other operators.
• GlobalstarmajorTechnology or Integration · 4 March 2025Partnership to develop IoT modules for two-way satellite, cellular and Band 53 connectivity. Globalstar's RM200M product will use GCT's IoT chip GDM7243i, with future products using GDM7243SL and 5G IoT-enabled chipset to support Globalstar's satellite network. Enables seamless connectivity across cellular, private and satellite networks worldwide.
• Ligado NetworksmajorTechnology or Integration · 10 October 2024Partnership to enable commercial device operation on Band 54 spectrum (1670-1675 MHz). GCT's LTE and LTE-M commercial chipsets enable devices to operate on LTE Band 54 spectrum, expanding ecosystem and enhancing private network opportunities for critical infrastructure industry including utility and enterprise organizations.
• Airspan NetworkscoreStrategic or Co-development Partner · 3 September 2024Strategic partnership for end-to-end solutions within 450MHz ecosystems for utilities sector. Collaboration of five tech leaders (Airspan, Cocus, Cyrus Technology, Frequentis, and GCT) to deliver robust solutions addressing critical communication challenges faced by utility companies. Also collaboration on 5G Air-to-Ground technology.
• Samsung ElectronicscoreStrategic or Co-development Partner · 13 August 2024MOU signed to accelerate the development of 4G/5G chipsets and modules and drive adoption by device makers. Partnership aims to advance 4G/5G solutions and further expand GCT's ecosystem worldwide through Samsung Foundry and other Samsung divisions.
• KyoceramajorTechnology or Integration · 10 July 2024Development and partnership agreement for collaboration on a 5G reference platform for CPE devices. New 5G reference platform incorporates GCT's 5G chipset and Kyocera's 5G mmWave antenna module to accelerate GCT's development of 5G mmWave CPE devices for GCT's 5G customers.
• Saudi AramcomajorStrategic or Co-development Partner · 5 April 2024MOU signed to accelerate the development of the 4G and 5G ecosystem in Saudi Arabia for mission-critical and public safety networks. Sets stage for strategic collaboration with Aramco Digital and participation in 450 MHz Alliance events.
• Alltek Technology Corp.minorChannel Partner/ Reseller/ DistributorRegional distributor for GCT products in Southeast China (Shenzhen) and Taiwan, handling sales and distribution of semiconductor solutions.
• Sanet Electronic Co., LTDminorChannel Partner/ Reseller/ DistributorRegional distributor for GCT products in Shenzhen, China, handling sales and distribution of semiconductor solutions.
• Takachiho Koheki Co., LtdminorChannel Partner/ Reseller/ DistributorRegional distributor for GCT products in Japan, handling sales and distribution of semiconductor solutions through their Semiconductors Dept.
• Daejin Semiconductor Co., Ltd.minorChannel Partner/ Reseller/ DistributorRegional distributor for GCT products in Korea (Seoul), handling sales and distribution of semiconductor solutions.
• Edom TechnologyminorChannel Partner/ Reseller/ DistributorRegional distributor for GCT products in Taiwan (Taipei), handling sales and distribution of semiconductor solutions.

Scale indicators7 records

Recent moves7 records

Expansion highlights6 records

Others

• Semtech (Sierra Wireless): Semtech acquired Sierra Wireless in 2023 to combine LoRa with cellular modules and IoT connectivity. Sierra Wireless's cellular module portfolio competes downstream of GCT's chips in the same IoT and FWA OEM channels.

Broad incumbents

• Qualcomm: Dominant supplier of cellular modems and application processors across smartphone, IoT, automotive, and FWA categories. While much larger and broader than GCT, Qualcomm's Snapdragon modem roadmap defines the competitive frontier GCT must navigate, especially in 5G handset and premium FWA gateways.
• Samsung System LSI: Samsung's logic-chip division designs Exynos application processors and modems for Galaxy devices and external customers. As both a potential competitor and GCT's foundry partner (Samsung Foundry), Samsung is a uniquely entangled peer with structural advantages GCT cannot replicate.

Direct peers

• MediaTek: Fabless designer of smartphone and IoT chipsets with a strong 5G modem lineup (Dimensity series). MediaTek is a direct competitor in cellular chipsets and serves the same mid-range handset and CPE OEMs that GCT targets with its 4G/5G solutions.
• ASR Microelectronics: China-based fabless designer of 4G/5G mobile and IoT chipsets, with strong penetration in domestic smartphones, modules, and CPE. ASR competes with GCT in cost-sensitive 4G LTE categories and represents the same kind of fabless, mid-scale challenge.
• Sequans Communications: Fabless designer of 4G/5G chipsets focused exclusively on cellular IoT, fixed wireless, and CBRS. Sequans is one of the closest direct comparables to GCT given its overlapping IoT, FWA, and private-network positioning and similar fabless cost structure.
• UNISOC: Chinese fabless designer of 2G/3G/4G/5G mobile chipsets serving feature phones, smartphones, and IoT modules. UNISOC competes head-to-head with GCT in cost-sensitive 4G LTE chipset segments and is a key reference point for the low-end of the modem market.

Emerging players

• Nordic Semiconductor: Norwegian fabless designer of ultra-low-power short-range wireless SoCs (Bluetooth LE, Wi-Fi, Matter, Thread) with growing cellular IoT ambitions (LTE-M/NB-IoT via the nRF91 series). Nordic represents both an adjacent connectivity peer and a potential convergence point for low-power cellular IoT.
• u-blox: Swiss fabless/mixed-signal provider of positioning and wireless connectivity modules and chipsets, including cellular (LTE-M, NB-IoT) and short-range. u-blox competes with GCT in cellular modules for IoT, asset tracking, and industrial segments.
• Sony Semiconductor Israel (formerly Altair Semiconductor): Sony-owned fabless designer of cellular IoT chipsets (LTE-M, NB-IoT) acquired in 2016. Altair's low-power IoT modem portfolio overlaps directly with GCT's GDM7243i hybrid cellular/Sigfox positioning in cellular IoT.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/GCTSemi
• LinkedInlinkedin.com/company/gct-semiconductor

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries1 record

Funding overview

Funding rounds12 records

Investors20 records

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 GCT Semiconductor