What TT Electronics does

TT Electronics plc is a UK-headquartered (Woking, Surrey) public limited company listed on the London Stock Exchange under ticker TTG, with a market capitalization of approximately £215 million as of April 2026. The company engineers and manufactures high-reliability electronic components and sub-assemblies for performance-critical applications, organized around four primary verticals: Aerospace & Defence (the dominant segment serving combat air, naval, missile defense, and space platforms), Healthcare (medical device coils, sensors, and ISO 13485-certified cleanroom manufacturing), Automation & Electrification, and Rail/Transportation. FY2025 revenue was £481.4 million, a 2.7% organic decline, with adjusted operating profit of £37.2 million (+2.2% YoY) and free cash flow of £29.9 million.

The core product portfolio spans power conversion (AC-DC, DC-DC, DC-AC converters, ATRUs/TRUs, pulsed power supplies, including proprietary platforms such as Altitude DC and AX-FORCE), electromagnetics (transformers, inductors), microelectronics (custom hybrid microcircuits in HTCC/LTCC and thick-film on ceramic), sensors (Hall-effect/Hallogic, optoelectronics, pressure, temperature, flow), passive components (resistors, potentiometers, encoders, trimmers), high-reliability connectors (Pola Power, SteadiShield, ABCIRH), human-machine interface assemblies, and contract electronics manufacturing services (PCBA, box build, cable harness, testing). The company operates 20+ sites across the UK, US, Mexico, Malaysia, China, and Singapore, with major brands including Optek, Ferranti, BI Technologies, Welwyn, AB Connectors, Aero Stanrew, Power Partners, Precision, Torotel, and Semelab.

TT Electronics sells primarily B2B on a custom project-based pricing model with multi-year defense contracts, using direct sales engineers and a North American manufacturer representative network, supplemented by a global distributor network for standard components. The company holds a deep stack of regulatory qualifications (AS9100D, ISO 13485, NADCAP, MIL-STD, DO-160G, MIL-PRF-38534, EN45545 HL3) that function as a structural barrier to entry. Notable end customers include BAE Systems, Lockheed Martin, Northrop Grumman, Honeywell, Collins Aerospace, Thales, Ultra PCS, NASA (Artemis II and Dragonfly), and Wilson Electronics. The company is emerging from a contested takeover period—Cicor Technologies' £287M offer was rejected by shareholders in January 2026—and has refreshed its leadership with new chairman Phil Swash (effective May 2026) and incoming CFO Ian Ashton.

Name

TT Electronics

Legal name

TT Electronics plc

Website

https://ttelectronics.com

Company type

Public

Founded year

1956

Operating status

Operating

Headcount range

251–500 employees

Short description

TT Electronics plc is a UK-listed engineered electronics manufacturer serving aerospace & defence, healthcare, rail, and industrial markets with power conversion, sensors, microelectronics, connectors, and contract manufacturing services, holding 20+ global facilities and a stack of AS9100D, NADCAP, and ISO 13485 certifications.

Ownership category

akta.pro rank

Product category

Aerospace and Defense Electronics

NAICS

Capacitor, Resistor, Coil, Transformer, and Other Inductor Manufacturing (334416), Other Electronic Component Manufacturing (334419), Semiconductor and Other Electronic Component Manufacturing (33441), Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Other Measuring and Controlling Device Manufacturing (334519)

SIC

Electronic Components & Accessories (3670), Electronic Coils, Transformers & Other Inductors (3677), Electrical Industrial Apparatus (3620), Electronic Components, Nec (3679), Instruments For Meas & Testing Of Electricity & Elec Signals (3825)

akta.pro primary industry

Ruggedized/Harsh-Environment Electronics Manufacturing (IP-rated, shock/vibration, wide-temp) (IMAGAGAF)

akta.pro secondary industries

Motor Drive & Motion Control Electronics Manufacturing Services (VFDs, servo drives, controllers) (IMAGAGAJ), Sensors & Instrumentation Electronics Manufacturing Services (Transmitters, analyzers, industrial sensors) (IMAGAGAL), EMI/EMC & Filtering Components (Common-mode chokes, filters, shielding materials) (IMAGAJAN), Embedded & HMI Electronics Manufacturing (Industrial PCs, HMIs, Panel PCs) (IMAGAGAD)

Keywords

• Power conversion systems
• Aerospace defense electronics
• Engineered electronic components
• Electronics manufacturing services
• Sensors and connectors

Headquarters

HQ city

Woking

HQ country

United Kingdom

HQ region

Europe

Offices19 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Power Electronics Products: Revenue from sale of power conversion products including AC-DC converters, DC-DC converters, inverters, ATRUs, TRUs, and pulsed power supplies for aerospace, defense, and industrial applications.
2. Sensors and Passive Components: Revenue from sensors (Hall-effect, optoelectronics, pressure, temperature, flow), resistors, potentiometers, encoders, trimmers, and steering sensors for regulated markets.
3. Cable Harness and Electromagnetics: Revenue from custom cable harness assemblies and electromagnetic components (transformers, inductors) for defense and aerospace platforms.
4. Electronics Manufacturing Services (EMS): Contract manufacturing services including PCBA, box build, HLA, cable harness assembly, testing, and NPI/engineering support for customers requiring nearshore or specialized manufacturing.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

TT Electronics engineers and manufactures high-reliability electronic components and subsystems, including power conversion products (AC-DC, DC-DC, bidirectional converters, ATRU/TRU, pulsed power), electromagnetics (transformers, inductors), microelectronics (hybrid microcircuits), sensors (Hall-effect, optoelectronics, flow, pressure, temperature), passive components (resistors, potentiometers, encoders), high-reliability connectors, and human-machine interface assemblies. The company also provides electronics manufacturing services (PCBA, box build, cable harness assembly, NPI engineering, ISO-certified cleanroom assembly, and testing) to OEMs in aerospace and defence, healthcare, rail, and industrial automation markets. Products and services are sold under sub-brands including Optek, BI Technologies, Welwyn, Ferranti, Torotel, AB Connectors, Aero Stanrew, Power Partners, Precision, Roxspur, and Semelab.

Product overview

TT Electronics is a global provider of engineered electronics for performance-critical applications, operating as a platform of specialized product lines and manufacturing services. The core product portfolio centers on power conversion systems (including Altitude DC™ high-voltage converters and AX-FORCE™ bidirectional converters), electromagnetics, microelectronics (hybrid microcircuits), sensors (optoelectronics, flow, pressure, temperature, Hall-effect), passive components (resistors, potentiometers, encoders), connectors, and power supplies. These products are organized under sub-brands including Optek Technology (Hallogic® sensors), Ferranti (power electronics), Torotel (power supplies), BI Technologies (resistors/sensors), Welwyn (precision resistors), AB Connectors, Aero Stanrew, Power Partners, Precision, Roxspur Measurement and Control, and Semelab. Manufacturing capabilities include EMS services (NPI/engineering, PCBA, box build, cable harness assembly), ISO-certified cleanroom manufacturing, and testing solutions. The company serves aerospace & defence, healthcare, and industrial automation markets through vertically integrated solutions.

Differentiator

Problem solved

Functional benefit

Brands

• AB Connectors: Connectors and interconnect solutions
• Aero Stanrew
• BI Technologies
• Ferranti
• IRC
• Optek Technology
• Precision
• Power Partners
• Roxspur Measurement & Control
• Semelab
• Torotel
• Welwyn
• Altitude DC
• AX-FORCE

Products and services

• Power Conversion Systems A portfolio of high-reliability power converters and inverters including DC-DC, AC-DC, AC-AC, and DC-AC converters designed for aerospace, defence, and industrial applications operating in harsh environments.
• Electromagnetics Transformers, inductors, and magnetic components for power conversion, energy efficiency, and electromagnetic interference suppression in aerospace, defence, and medical applications.
• Microelectronics Custom hybrid microcircuits and multi-chip modules designed for harsh environments, providing miniaturised high-reliability solutions for aerospace and defence applications with hermetic and non-hermetic packaging.
• Sensors Precision sensors including Hall-effect (Hallogic), optoelectronics, flow sensors, pressure sensors, and temperature sensors for performance-critical applications in aerospace, defence, medical, and industrial markets.
• Passive Components Encoders, potentiometers, resistors, steering sensors, trimmers, and turn counting dials for precision applications including aerospace, defence, and AI/data centre infrastructure.
• Connectors High-reliability connectors for harsh environments including Pola Power connectors (up to 1000Amp, IP67 sealed), SteadiShield ethernet connectors, and ABCIRH rail-approved connectors for aerospace, defence, and rail applications.
• Human Machine Interface Assemblies Rugged control panel assemblies, aircraft interior solutions, and capacitive switching membranes for aerospace and defence applications.
• Industrial and Medical Grade Power Supplies Industrial and medical grade power supplies including desktop, encapsulated, enclosed, open frame, U-channel, and wall mount configurations from Power Partners and Protek brands.
• Electronics Manufacturing Services (EMS) Contract electronics manufacturing services including NPI and engineering, PCBA, box build and HLA, cable and harness assembly, and global supply chain management for customers requiring nearshore or specialised manufacturing.
• ISO-Certified Cleanroom Manufacturing Controlled environment assembly and precision manufacturing services in ISO 14644-1 certified Class 7 and Class 8 cleanrooms for contamination-sensitive medical devices and microelectronics.
• Testing Solutions Advanced testing and validation services including in-circuit testing (ICT), functional testing (FCT), flying probe testing, boundary scan/JTAG testing, and custom test fixture development.
• Cable Harness Assembly Precision interconnect cable harnesses and assemblies engineered for harsh and mission-critical aerospace and defence environments, manufactured at the Nadcap-accredited TT Electronics Fairford facility.
• Medical Device Coils Electromagnetic tracking coils, implantable coils, external communication and charging coils, and RF wireless antennas for medical device applications.

Quantifiable outcome

• Over 20 TT components on NASA's Artemis II mission
• +4 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Two partnerships are on record, tiered core.

• University of NottinghamcoreStrategic or Co-development PartnerEstablished collaboration with University of Nottingham for development of new technology for electrical power conversion. Working together on wide bandgap devices, advanced converter topologies, integrated functionality, and advanced materials to deliver compact, lightweight, high efficiency and integrated solutions.
• BAE Systems (Team Tempest)coreStrategic or Co-development PartnerTT Electronics awarded contract from BAE Systems for design, development, and qualification of DC-DC converter for Tempest Flight Control System. Tempest programme aims to introduce combat aircraft by 2035, replacing Typhoon.

Scale indicators11 records

Recent moves7 records

Expansion highlights6 records

Market position

Competitive moat5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/jtt-electronics-ltd-
• Xx.com/ttelectronics
• Facebookfacebook.com/ttelectronicsplc

Compliance21 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries15 records

Funding overview

Funding rounds

Investors

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

M&A15 records

Investments

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

Frequently asked questions about TT Electronics