What British Rototherm Company does

British Rototherm Company is a Port Talbot, UK-headquartered industrial measurement-instrument manufacturer founded in 1847, currently operating with 101–250 employees and an estimated turnover of approximately £14 million. The company designs and produces measurement solutions covering flow, level, temperature and pressure for demanding end-markets including LPG, water utilities, pharmaceuticals, oil and gas, food and beverage, defence, and chemicals. Its offering is structured around three principal sub-brands — Rototherm (pressure and temperature gauges, thermowells, manifolds, recorders and pressure switches, drawing on heritage dating to the company's invention of the first steam gauge in 1847 and the bi-metallic thermometer in 1942), Rototech (non-invasive ultrasonic level systems with stated 0.5% accuracy), and Micronics (clamp-on ultrasonic flow meters in pipe-mount, wall-mount and portable variants) — together with the Digitron handheld instruments product line acquired in 2017.

The core technology stack combines ultrasonic (clamp-on and non-contact) measurement with digital sensor technology and the proprietary RotoHub telemetry platform, which delivers real-time data analytics and remote software support for installed instruments, with a 2026 initiative to embed AI into both products and operations. The portfolio includes ultrasonic flow meters, ultrasonic level instruments, digital pressure gauges, thermowells, mechanical recorders, manifolds, multi-stage restriction orifice (MSRO) flow restrictions, pressure switches, temperature sensors and a Digital Multi-Gauge for LPG density/mass applications.

British Rototherm operates a primarily direct enterprise sales motion targeted at industrial customers, supplemented by exclusive channel partnerships (e.g., UK Metering for Micronics products in UK building services) and regional distribution (e.g., Caltrols Middle East for Middle East markets). Revenue is derived principally from hardware sales of measurement instruments and related telemetry, with quote-based (undisclosed) pricing typical of customised industrial instrumentation. Multiple Operational Excellence awards, ISO 9001 quality certification, Cyber Essentials certification, and JOSCAR registration (for aerospace, defence and security supply chains) support its positioning as a qualified supplier in regulated end-markets.

Name

British Rototherm Company

Legal name

British Rototherm Group Ltd.

Website

https://rototherm.co.uk

Company type

Private

Founded year

1847

Operating status

Operating

Headcount range

101–250 employees

Short description

British Rototherm Company is a UK-based industrial measurement-instrument manufacturer, founded 1847, designing ultrasonic flow, level, temperature and pressure solutions for the LPG, water, pharma, oil & gas, food & beverage, defence and chemicals sectors under the Rototherm, Rototech, Micronics and Digitron brands.

Ownership category

akta.pro rank

Product category

Industrial Measurement Instruments

NAICS

Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513), Other Measuring and Controlling Device Manufacturing (334519), Totalizing Fluid Meter and Counting Device Manufacturing (334514), Analytical Laboratory Instrument Manufacturing (334516)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Totalizing Fluid Meters & Counting Devices (3824), Laboratory Analytical Instruments (3826)

akta.pro primary industry

Process Automation Instrumentation & Control (DCS, Valves, Actuators, Analyzers) (IMAHAHAM)

akta.pro secondary industries

Temperature data loggers & probes (in-transit and storage) (TLAEALAA), Cold storage facility environmental sensing (rooms, freezers, blast chillers) (TLAEALAL)

Keywords

• Industrial measurement instruments
• Ultrasonic flow meters
• Pressure temperature gauges
• Process instrumentation
• Ultrasonic level sensors

Headquarters

HQ city

Port Talbot

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Measurement Instruments and Hardware: The company generates revenue primarily through manufacturing and selling measurement instruments including ultrasonic flow meters, level sensors, pressure gauges, temperature gauges, thermowells, and related industrial measurement products. The business emphasizes modular design for on-time delivery performance.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

British Rototherm Company manufactures industrial measurement instruments for flow, level, temperature, and pressure, organized under three core sub-brands: Rototherm (pressure and temperature gauges, thermowells, mechanical recorders, pressure switches, manifolds), Rototech (non-invasive ultrasonic level systems with 0.5% accuracy), and Micronics (clamp-on ultrasonic flow meters in pipe mount, wall mount, and portable configurations). The portfolio also includes Digitron handheld instruments (acquired 2017) covering pressure, temperature and gas meters for HVAC, field engineering, food & beverage, manufacturing, and cold chain logistics. The company sells these instruments directly to enterprise customers and via channel partners across LPG, water, pharmaceutical, oil & gas, food & beverage, defence, and chemical industries worldwide.

Product overview

British Rototherm Group operates as a multi-brand measurement solutions company with three main sub-brands: Rototherm (Pressure and Temperature Measurement Solutions including gauges, switches, and recorders), Rototech (Non-Invasive Ultrasonic Level Systems), and Micronics (Clamp On Ultrasonic Flow Meters). The portfolio encompasses ultrasonic flow meters (pipe mount, wall mount, portable variants), ultrasonic level instruments, digital pressure and temperature gauges, handheld instruments under the Digitron brand (acquired 2017), manifolds, thermowells, mechanical recorders, pressure switches, flow restrictions, and remote monitoring solutions via the proprietary RotoHub telemetry system. The company specializes in non-invasive measurement technologies for industries including LPG, water, pharma, oil & gas, food & beverage, defence, and chemicals.

Differentiator

Problem solved

Functional benefit

Brands

• Rototherm: Primary brand focused on Pressure & Temperature Measurement Solutions, including thermowells, pressure gauges, temperature gauges, mechanical recorders, and manifolds. The company designed and built the first steam gauge in 1847 and invented the bi-metallic thermometer in 1942.
• Rototech
• Micronics
• Digitron

Products and services

• Ultrasonic Flow - Pipe Mount Flow rate sensors that revolutionise energy flow metering by detecting and measuring fluid flow rates externally using clamp-on ultrasonic technology, avoiding disruption to ongoing processes. Suitable for industrial flow measurement applications.
• Ultrasonic Flow - Wall Mount Fixed ultrasonic flow meter solution designed for permanent wall installation in various industrial applications, providing non-invasive clamp-on flow measurement.
• Ultrasonic Flow - Portable Portable ultrasonic, clamp-on, non-invasive flow and energy meter for closed pipe applications, providing measurement flexibility for field and temporary installations.
• Non-Invasive Ultrasonic Level Non-invasive ultrasonic level measurement instrument that measures storage vessel level and volume from outside the tank to within 0.5% accuracy. For LPG applications, can combine with digital gauge to measure density and mass with remote data transmission.
• Density and Beverage Specific High accuracy, reliable density measurement of liquids using ultrasonic technology, trusted by leading brands within beverage and chemical industries for production quality control.
• Digital Pressure Gauges Cutting-edge digital pressure gauges using the latest sensor technology (DG/DGX range), suitable for a wide range of industrial applications requiring reliability and accuracy.
• Digitron Handheld Instruments Handheld instruments including an extensive range of pressure instruments, temperature meters, and gas meters particularly suited for HVAC, field engineers, food and beverage, manufacturing, and cold chain logistics. Acquired into the Group in 2017.
• Digital Multi-Gauge Digital temperature and pressure gauge for LPG applications that measures and displays density. Combines with RotoLevel and RotoHub for real-time monitoring solutions.
• Manifolds Anodised aluminium and steel manifolds for distribution of gaseous and liquid media. Originally developed for instrument air supplies within control panels and now available for petro-chemical, marine, and general industrial applications.
• Thermowells Temperature sensor protection wells manufactured with the largest manufacturing capacity in the UK, featuring industry-beating lead times and extensive testing and material validation capabilities.
• Mechanical Recorders Robust, rugged, reliable mechanical chart recorders. Require no power and provide the right solution for pressure and temperature testing needs.
• Pressure Switches Pressure switches used in demanding industrial processes including offshore platforms, nuclear applications, and chemical, pharmaceutical, and gas transmission.
• Temperature Gauges Temperature measurement instruments with heritage dating back to 1847, trusted for robust and reliable performance in millions of applications worldwide.
• Pressure Gauges Pressure measurement instruments continuing the company's heritage of designing and building the first ever steam gauge in 1847 and inventing the bi-metallic thermometer in 1942.
• Flow Restrictions (MSROs) Multi Stage Restriction Orifice (MSRO) assemblies custom designed to control high pressure drops in process lines while managing noise and cavitation in extreme applications.
• Remote Monitoring (RotoHub) RotoHub telemetry system enabling year-round remote product and software support. Features an online data portal providing real-time data analytics of storage vessels for inventory management.
• Temperature Sensors Temperature sensing instruments and sensors for various industrial applications requiring precise temperature measurement.
• Micronics (Clamp-On Ultrasonic Flow Meters) Sub-brand line of clamp-on ultrasonic flow meters covering both portable ultrasonic meter instruments and fixed meter applications for closed pipe measurement.
• Rototech (Non-Invasive Ultrasonic Level Systems) Sub-brand line of non-invasive ultrasonic level systems that can measure level and volume of storage vessels from outside the tank with 0.5% accuracy.
• Rototherm (Pressure & Temperature Measurement) Primary sub-brand offering pressure and temperature measurement solutions including temperature gauges, pressure gauges, thermowells, mechanical recorders, manifolds, and pressure switches with heritage dating to 1847.
• Inventory and Vehicle Tracking Systems New ultrasonic-based products launched through the British Rototherm ultrasonics division in 2026 for inventory and vehicle tracking applications, leveraging remote ultrasonic monitoring technology.

Quantifiable outcome

• 0.5% accuracy for level measurement
• +2 more outcomes

Named customers4 records

Segments8 records

Ideal customer profiles8 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability1 record

Feature7 records

Partnerships

Four partnerships are on record, tiered core and minor.

• UK MeteringcoreChannel Partner/ Reseller/ DistributorExclusive partnership where UK Metering serves as the key UK distributor of Micronics premium metering products for building services and energy management applications.
• Equipment ScientificsminorChannel Partner/ Reseller/ DistributorEquipment Scientifics uses Micronics metering technology as a valued partner for energy management projects in building services, relying on cutting-edge technology and responsive support.
• Caltrols Middle East FZCOcoreChannel Partner/ Reseller/ DistributorLong-standing business partnership spanning several years, with Caltrols distributing Rototherm products in Middle East markets. Products are described as user-friendly, versatile, and competitive.
• Toyota Lean Management CentreminorStrategic or Co-development PartnerKenny Barlow from Toyota Lean Management Centre serves as coach and mentor, providing testimonial on British Rototherm's continuous improvement culture and respect for people philosophy.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• KROHNE Group: Specialist in flow and level measurement with ultrasonic expertise. Highly comparable to British Rototherm's Micronics (flow) and Rototech (level) brands, especially in process industries and water/wastewater applications.
• Endress+Hauser: Global leader in industrial process measurement for flow, level, pressure, and temperature across chemicals, food & beverage, oil & gas, and water. Direct competitor to British Rototherm across essentially all four measurement disciplines and verticals served.
• WIKA Alexander Wiegand: German specialist in pressure and temperature measurement with broad industrial reach. Closely comparable to British Rototherm's core Rototherm brand, both targeting demanding industrial applications with similar heritage-backed positioning.
• Emerson Electric (Rosemount): Through its Rosemount brand, Emerson is a top-tier supplier of process measurement instrumentation including pressure, temperature, level, and flow. Direct competitor to British Rototherm in oil & gas, chemical, and process industry verticals.
• ABB: ABB's Measurement & Analytics business offers flow, level, pressure, and temperature instrumentation for oil & gas, chemicals, water, and power. Multi-national scale comparable competitor across British Rototherm's served markets.
• VEGA Grieshaber: Specialist in level, switching, and pressure instrumentation with strong ultrasonic and radar product lines. Most direct peer for British Rototherm's Rototech non-invasive ultrasonic level business.
• Yokogawa Electric: Yokogawa supplies industrial measurement instruments (pressure, temperature, flow) alongside its process control portfolio. Competes with British Rototherm in oil & gas, chemical, and power-generation applications.
• Siemens Process Instrumentation: Siemens offers process instrumentation including flow, level, pressure, and temperature measurement integrated into its automation portfolio. Broad incumbent competitor across British Rototherm's enterprise industrial customers.
• Honeywell Process Solutions: Honeywell supplies measurement and control instrumentation for oil & gas, refining, chemicals, and power. Competes directly with British Rototherm in high-accuracy flow, pressure, and level applications in hazardous areas.

Broad incumbents

• Georg Fischer (GF Piping Systems): Broader industrial measurement and flow/process solutions provider with overlapping applications in water, chemicals, and industrial process measurement. Less direct overlap but functionally adjacent in measurement-driven process control.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/RotothermGroup
• Facebookfacebook.com/RotothermGroup
• LinkedInlinkedin.com/company/rototherm-group

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries4 records

Funding overview

Funding rounds

Investors

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 British Rototherm Company