RG

Reactive Group

Sulhamstead, Berkshire, United Kingdom

Rugged Computing & ElectronicsDual-use
Founded 1989System Integrator, Subsystem Manufacturer
Profile last updated: April 21, 2026

About

Founded in 1989, Reactive Group is a defense system integrator based in Sulhamstead, United Kingdom working in rugged computing & electronics.

Reactive Group is a UK-headquartered group of companies, established in 1989, that designs, develops, integrates and manufactures advanced storage systems for mil/aero, commercial and industrial applications. Its Solid State Disks Ltd (SSDL) division and US subsidiary Arraid LLC produce solid-state, CF-based swap-in replacement drives and emulators for legacy SCSI, ESDI, IDE, floppy and tape storage used in defence, aerospace, telecoms, nuclear power and semiconductor equipment. The group also distributes solid-state flash memory technologies through OEM agreements with flash manufacturers. It states it is an ISO 9001 certified company and a NATO NCAGE certified supplier, and provides emulator maintenance and support services.

Location

Sulhamstead, United Kingdom

Founded

1989

Company type

Private company

Focus areas

data storagelegacy emulationsolid-state drivesSCSICF cardsmil/aerodefenceobsolescence managementflash memory

Languages

EN

Products & capabilities

Defense domains

Rugged Computing & Electronics

Supply-chain role

System IntegratorSubsystem Manufacturer

What they offer

HardwareEngineering ServicesMaintenance & Repair

Markets

Also sells to civilian markets

Products

SCSIFlash

Solid-state storage emulator

Solid-state SCSI drive that emulates legacy SCSI and micro floppy drives, including TEAC FC1 emulation, using industrial CF cards.

CF2SCSI

Solid-state storage emulator

Solid-state drive that replaces failing ageing SCSI-based hard disk drives.

SCSIFlash3

Solid-state storage emulator

Next-generation SCSI solid-state replacement drive launched in 2024.

Flashtape and Flashdisk

Solid-state tape and disk replacement drive

Solid-state replacement drives for legacy computer systems, produced by Arraid using proprietary FPGA-based technology.

Standards, platforms & customers

Named customers

EDF Energy

Credentials & affiliations

Certifications

ISO 9001:2015

NATO NCAGE certified supplier

Other defense companies in United Kingdom

View all