IQE

What IQE does

IQE plc (LSE:IQE, AIM-listed) is a Cardiff-headquartered, UK-founded (1988) public company that designs and manufactures advanced compound semiconductor wafer products — specifically epitaxial wafers (epi-wafers) and substrates built from III-V materials including Indium Phosphide (InP), Gallium Nitride (GaN), Gallium Arsenide (GaAs), and Gallium Antimonide (GaSb). The company operates nine manufacturing facilities across the UK (Cardiff, Newport, Milton Keynes), the United States (Massachusetts, North Carolina, Spokane), and Taiwan (Hsinchu Science Park), supporting roughly 480–650 employees globally. Core technology centres on epitaxial growth processes, crystal growth (including Czochralski bulk crystal growth), and wafer finishing, with capabilities spanning 2 to 8-inch substrates and full in-line metrology. IQE was the first III-V substrate vendor globally to achieve ISO 9001 certification and holds ISO 14001 environmental certification across its sites.

IQE's revenue model is B2B direct enterprise sales of custom-engineered compound semiconductor wafer products to semiconductor foundries, integrated device manufacturers, and technology OEMs. The company generates revenue through hardware sales of epi-wafers and substrates, multi-year supply agreements with minimum purchase commitments (notably with Tower Semiconductor and MACOM), and epitaxial services contracts that function as recurring long-term arrangements. Pricing is negotiated/quoted based on customer specifications and volume commitments rather than published list prices. Customer segments span five verticals: AI and Datacentres (InP photonics, optical transceivers for hyperscale cloud and AI infrastructure), Communications Infrastructure (GaN RF for base stations, satellite, 5G), Smart Connected Devices / Consumer Electronics (VCSELs for 3D sensing, RF components), Aerospace and Defence (GaSb infrared sensors, radiation-hardened GaN power), and Automotive and Industrial (VCSELs for in-cabin sensing, GaN power electronics).

Recent strategic activity reflects a turnaround phase following late-2024 leadership change and a strategic review. IQE completed an £81 million fundraising in May 2026 anchored by a £45 million strategic investment from MACOM (which gained board representation) and used proceeds to repay HSBC revolving credit. In June 2026 the company signed a multi-year InP epiwafer supply agreement with Tower Semiconductor for AI datacenter silicon photonics (supporting $1.3 billion in contracted 2027 silicon photonics revenue at the customer level and a fivefold capacity expansion by end-2026), while separately securing a worldwide royalty-free license to Tower's porous silicon patents that resolved all prior litigation. Earlier in 2025 the company signed joint development agreements with X-FAB (European GaN-on-Si power) and Quintessent (quantum dot epiwafers for AI optical interconnects). FY2025 results reported revenue of £97.3m (down 17.6% YoY) and adjusted EBITDA of £3.2m, with management guiding to more than 20% revenue growth in FY2026.

Name

IQE

Legal name

IQE plc

Website

https://iqep.com

Company type

Public

Founded year

1980

Operating status

Operating

Headcount range

251–500 employees

Short description

IQE plc is a Cardiff-headquartered public company and global leader in compound semiconductor wafer manufacturing, supplying InP, GaN, GaAs, and GaSb epitaxial wafers and substrates to semiconductor foundries, defense contractors, and OEMs for AI datacenter optics, 5G, sensing, and power electronics applications.

Ownership category

akta.pro rank

NAICS

Semiconductor and Related Device Manufacturing (334413)

SIC

Semiconductors & Related Devices (3674)

akta.pro primary industry

Compound Semiconductor Wafers & Substrates (SiC/GaN/GaAs/InP/Sapphire) (HDAHAGAB)

akta.pro secondary industries

Epitaxy Materials & Services (Epi Wafers/MBE/MOCVD) (HDAHAGAC), Wafer Services & Reclaim (Epitaxy, Thinning, Reclaim) (HDAHACAH)

Keywords

• Compound semiconductor wafers
• Epitaxial wafer products
• III-V semiconductor materials
• Indium phosphide wafers
• Gallium nitride epitaxy

Headquarters

HQ city

Cardiff

HQ country

United Kingdom

HQ region

Europe

Offices7 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Compound Semiconductor Wafer Products: IQE designs and manufactures advanced semiconductor materials. The company produces epitaxial wafers of superior quality, yield and unit economics by leveraging its intellectual property portfolio including knowhow and patents. Revenue is generated through the sale of compound semiconductor wafers to customers who fabricate them into chips for technology applications.
2. Epitaxial Services: Long-term supply agreements for epitaxial services spanning multiple technologies (InP, GaN, GaAs). The company provides dedicated epitaxial capacity to strategic customers like MACOM through multi-year supply agreements with minimum purchase commitments.
3. Substrate Sales: Sale of substrate materials including GaAs, InP, GaSb, InSb and InAs substrates for both internal use and external markets. Substrates are engineered to meet highest standards for epitaxy with precision orientation control and epi-ready surfaces.
4. Technology Licensing: IQE receives royalty-free licenses to intellectual property (such as porous silicon patents from Tower Semiconductor) as part of settlement agreements, which may enable future licensing revenue streams.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

IQE designs and manufactures advanced compound semiconductor wafer products (epitaxial wafers and substrates) using III-V materials including Gallium Nitride (GaN), Gallium Arsenide (GaAs), Indium Phosphide (InP) and Gallium Antimonide (GaSb). The company operates through two business units — Wireless (RF and power electronics) and Photonics (optical networking and sensing) — and supplies wafer products that are fabricated by customers into chips for applications spanning AI data centre optical interconnects, 5G communications, defence infrared systems, 3D sensing, and power electronics.

Product overview

IQE is the leading global supplier of advanced compound semiconductor wafers and materials solutions. The company operates two core business units: Wireless (RF infrastructure and power electronics) and Photonics (optical networking and sensing). The product portfolio includes Indium Phosphide (InP), Gallium Nitride (GaN), Gallium Arsenide (GaAs), and Gallium Antimonide (GaSb) epitaxial wafers, along with a comprehensive substrates portfolio (GaAs, GaSb, InP, InSb, InAs). These materials enable applications across smart connected devices, communications infrastructure, automotive and industrial, and aerospace and defence markets. IQE serves as a scaled global epitaxy wafer manufacturer supplying the semiconductor industry with products that power fibre-optic networks, AI data centre infrastructure, 3D sensing, wireless communications, and power electronics.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• 980% stock price increase year-to-date following Strategic Review completion and positive customer announcements
• +2 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Five partnerships are on record, tiered core, strategic and minor.

• Tower SemiconductorcoreStrategic or Co-development Partner · 15 June 2026Multi-year agreement for supply of Indium Phosphide (InP) epiwafers for optical connectivity solutions serving AI-driven datacenter infrastructure. IQE's InP epiwafers used in Tower's advanced silicon photonics platforms for 200Gb/s/lane pluggable transceivers and prototyping of 400Gb/s/lane modulators. Includes minimum purchase commitment by Tower and reciprocal supply commitment from IQE. Separately, Tower granted IQE a worldwide royalty-free license for porous silicon patents, settling all litigation.
• X-FABstrategicStrategic or Co-development Partner · 10 April 2025Joint Development Agreement signed in April 2025 to co-develop a European-based GaN Power device platform combining IQE's epitaxy expertise with X-FAB's device manufacturing capabilities. X-FAB added GaN-on-Si technology to its foundry services at its Dresden facility, enabling customers to select between GaN and SiC based on voltage requirements for applications in electric vehicles, AI datacenters, and consumer electronics.
• QuintessentstrategicStrategic or Co-development Partner · 23 January 2025Established quantum dot epitaxial wafer supply chain for AI optical interconnects. Partnership supports next-generation photonic integrated circuits for datacenter applications requiring high-speed optical connectivity solutions.
• Analog DevicesstrategicStrategic or Co-development PartnerStrategic partnership for InP-based photonic integrated circuit production, positioning IQE within the analog semiconductor ecosystem for optical networking applications.
• Deutsche BankminorOthersDeutsche Bank reinstated coverage on IQE with a Buy rating and 60 pence per share price target, citing strong demand for IQE's products across data centers, AI cloud infrastructure, military and defense, and satellite communications markets.

Scale indicators8 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• AXT, Inc. AXT manufactures GaAs, InP, and Ge substrates for compound semiconductor applications including VCSELs, RF devices, and photonics. It is the most directly comparable substrate competitor to IQE, serving overlapping customer segments in 3D sensing, datacom, and wireless.
• Visual Photonics Epitaxial Co. (VPEC): VPEC is a Taiwanese supplier of GaAs and InP epitaxial wafers for VCSELs, photodiodes, and RF devices. It directly competes with IQE in compound semiconductor epiwafers serving consumer electronics and datacom applications.
• IntelliEPI Inc. IntelliEPI supplies GaAs and InP epitaxial wafers using MBE technology, serving customers in RF, photonics, and optoelectronics. It is a direct compound semiconductor epitaxy peer, particularly in InP and GaAs epiwafer categories where IQE competes.
• Freiberger Compound Materials GmbH: Freiberger is a leading European manufacturer of GaAs and InP substrates for compound semiconductor device makers. It directly competes with IQE in substrate supply to RF, photonics, and LED device manufacturers.

Broad incumbents

• Sumitomo Electric Industries: Sumitomo Electric is a broad incumbent in compound semiconductors, producing GaAs substrates and devices through its Compound Semiconductor Materials division. It is a larger diversified player with overlapping product lines in GaAs substrates and related epitaxy.
• Coherent Corp. Coherent (formerly II-VI) is a broad incumbent in compound semiconductor materials, devices, and photonic systems. While its portfolio extends well beyond epitaxy into lasers and systems, its compound semiconductor substrate and epitaxy business overlaps with IQE's offerings.
• JX Nippon Mining & Metals: JX Nippon Mining & Metals supplies GaAs and InP substrates for compound semiconductor applications as part of its broader non-ferrous metals business. It competes with IQE in substrate supply while operating at much larger scale across multiple metals.

Emerging players

• Soitec: Soitec is a leader in silicon-on-insulator (SOI) and engineered substrates, with growing activity in silicon photonics substrates that intersect IQE's InP-based photonics offering. It is an adjacent emerging player rather than a direct competitor, addressing similar AI optical interconnect applications.

Others

• GlobalWafers Co., Ltd. GlobalWafers is one of the world's largest silicon wafer manufacturers serving semiconductor foundries. While focused on silicon rather than III-V compound semiconductors, it is a comparable specialty wafer manufacturer by business model and customer base.
• Qorvo, Inc. Qorvo is a leading RF semiconductor company that consumes GaAs and GaN epitaxial wafers in its products. It is a downstream customer and ecosystem participant rather than a direct competitor, providing context for IQE's end-market exposure.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/iqe
• Xx.com/IQEplc

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries3 records

Funding overview

Funding rounds4 records

Investors1 record

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

M&A8 records

Investments1 record

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

Frequently asked questions about IQE