What Spirax-Sarco Engineering does

Spirax Group plc (formerly Spirax-Sarco Engineering) is a UK-headquartered FTSE 100 industrial engineering company that designs, manufactures, and services thermal energy and fluid technology solutions for industrial customers worldwide. The company operates three core business units: Steam Thermal Solutions (steam systems, traps, and thermal energy equipment), Electric Thermal Solutions (electrical heating and process heating electrification, including proprietary decarbonisation technologies), and Watson-Marlow Fluid Technology Solutions (peristaltic pumps and contamination-free fluid transfer). Its products are embedded into critical industrial processes across food processing, pharmaceuticals, chemicals, and commercial/industrial buildings, with operations spanning more than 170 countries.

Spirax Group generates revenue primarily through hardware sales of steam systems, thermal solutions, and fluid handling equipment, supplemented by digital services such as monitoring and predictive maintenance. The company reaches customers through a hybrid go-to-market combining direct enterprise field sales (engaging large manufacturers including BASF and Lonza) and an extensive global distributor network targeting mid-market buyers. Pricing is quote-based and not publicly disclosed, reflecting a B2B industrial solutions model. The advanced steam trap product line launched in March 2026 represents the integration of IoT sensor-equipped hardware with AI-driven predictive maintenance capabilities.

For full year 2025, Spirax Group reported revenue of GBP 1,702.9 million with 5.0% organic growth, adjusted operating profit of GBP 339.9 million, and a 20% group operating margin. A completed restructuring program contributed GBP 40 million in annualized savings. The company is pursuing decarbonisation of industrial process heating through proprietary boiler electrification technologies, positioning itself within the industrial net-zero transition. Spirax Group has a long M&A track record, including the acquisitions of Watson-Marlow (1990), Chromalox (2017), Gestra AG (2017), and Cotopaxi Energy (2022), and operates with a market capitalization of approximately GBP 5.42 billion as of April 2026.

Name

Spirax-Sarco Engineering

Legal name

Spirax Group plc

Website

https://spiraxsarcoengineering.com

Company type

Public

Founded year

1899

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Spirax Group is a UK-listed FTSE 100 industrial engineering company that designs and services steam, electric thermal, and fluid handling solutions for industrial customers across food processing, pharmaceuticals, chemicals, and buildings in over 170 countries.

Ownership category

akta.pro rank

Product category

Industrial Thermal Energy and Fluid Technology

NAICS

Power Boiler and Heat Exchanger Manufacturing (33241), Heating Equipment (except Warm Air Furnaces) Manufacturing (333414), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341), Fluid Power Valve and Hose Fitting Manufacturing (332912)

SIC

Heating Equipment, Except Electric & Warm Air Furnaces (3433), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Pumps & Pumping Equipment (3561), Steam & Air-Conditioning Supply (4961)

akta.pro primary industry

Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC)

akta.pro secondary industries

Waste Heat Recovery & Heat Integration (HRSG/ORC, Pinch Analysis, Heat Exchangers) (EUABAJAF), Chillers, Boilers & Central Plant Operations (BPABACAG)

Keywords

• Steam thermal solutions
• Industrial process heating
• Peristaltic pump technology
• Fluid transfer solutions
• Decarbonisation technologies

Headquarters

HQ city

Cheltenham

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Steam Thermal Solutions: The largest business unit providing steam systems, steam traps, and thermal solutions for industrial applications. Revenue from product sales, spare parts, and related services.
2. Electric Thermal Solutions: Electrical heating and thermal management solutions including electrical heat tracing systems for industrial process heating applications.
3. Watson-Marlow Fluid Technology Solutions: Peristaltic pumps and fluid technology solutions for contamination-free fluid transfer across pharmaceuticals, food, and water treatment sectors.
4. Services and Digital Solutions: Digital services including monitoring, predictive maintenance, and optimization solutions supporting the hardware product portfolio.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Spirax Group provides thermal energy and fluid technology solutions through three world-leading businesses: Steam Thermal Solutions (steam systems, steam traps, thermal energy), Electric Thermal Solutions (electrical heating and decarbonisation technologies for industrial process heating), and Watson-Marlow Fluid Technology Solutions (peristaltic pumps and contamination-free fluid transfer). The portfolio targets industrial manufacturers across pharmaceuticals, food processing, chemicals, and commercial buildings to improve operating efficiency, safety, and support the transition to net zero.

Product overview

Spirax Group operates as a unified platform comprising three world-leading business units: Steam Thermal Solutions, Electric Thermal Solutions, and Watson-Marlow Fluid Technology Solutions. The company offers a 'total solutions' approach spanning physical products (steam traps, automatic air vents, peristaltic pumps, electric thermal solutions) alongside digital capabilities (IoT-enabled sensor monitoring, AI-driven predictive maintenance). The portfolio is unified by its focus on thermal energy and fluid technology solutions that improve operating efficiency and safety of customers' critical industrial processes. The recently launched Advanced Steam Traps product line represents the integration of hardware products with AI capabilities, while the Decarbonisation Solutions portfolio addresses electrification of industrial heating applications.

Differentiator

Problem solved

Functional benefit

Brands

• Steam Thermal Solutions: World-leading business providing steam systems, thermal energy solutions, steam traps and associated products for industrial applications
• Electric Thermal Solutions
• Watson-Marlow Fluid Technology Solutions

Products and services

• Steam Thermal Solutions Steam systems, thermal energy solutions, steam traps, and associated products for industrial applications, enabling efficient heat transfer and energy management in commercial and industrial processes. For industrial manufacturers across pharmaceuticals, food processing, and chemicals.
• Electric Thermal Solutions Electrical heating solutions and new-to-world decarbonisation technologies for industrial process heating applications, supporting the transition to decarbonized thermal energy. For industrial manufacturers seeking electrification of steam raising and process heating.
• Watson-Marlow Fluid Technology Solutions Peristaltic pumps and precision fluid transfer solutions for contamination-free fluid transfer. For pharmaceuticals, food processing, and water treatment customers requiring hygienic, precise, and contamination-free fluid handling.
• Advanced Steam Traps Next-generation steam traps with integrated IoT sensors and AI-driven predictive maintenance capabilities, designed to improve industrial energy efficiency with up to 25% energy savings and compliance with EU Energy Efficiency Directives. For industrial manufacturers in chemicals, pharmaceuticals, and other steam-intensive sectors.
• Spirax Sarco AE30 Automatic Air Vent Compact brass automatic air vent designed to automatically remove trapped air from closed-loop hot- and chilled-water systems in commercial and industrial buildings, improving heat transfer efficiency and reducing corrosion risks. For facility managers and HVAC contractors.
• Decarbonisation Solutions New-to-world proprietary technologies for electrifying boilers to raise steam and electrify other critical industrial process heating applications, eliminating scope 1 and 2 greenhouse gas emissions when connected to green electricity sources. For industrial manufacturers seeking net-zero process heating solutions.

Quantifiable outcome

• Up to 25% energy savings through advanced steam trap monitoring and IoT integration
• +5 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature4 records

Partnerships

Two partnerships are on record, tiered core.

• BASFcoreStrategic or Co-development Partner · 22 March 2026BASF is an early adopter of Spirax Sarco Engineering's advanced steam trap product line featuring sensor-based monitoring and AI-driven predictive maintenance capabilities. As a leading chemical company, BASF represents a strategic customer partnership for validating product performance in demanding industrial environments.
• LonzacoreStrategic or Co-development Partner · 22 March 2026Lonza, a pharmaceutical contract manufacturer, has placed bookings for Spirax Sarco Engineering's advanced steam trap product line. This partnership positions the company to demonstrate contamination-free fluid transfer capabilities critical for pharmaceutical manufacturing applications.

Scale indicators9 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Alfa Laval: Swedish industrial group manufacturing heat exchangers, fluid handling equipment, and food/dairy processing solutions. Closely comparable to Spirax across steam/heat transfer and fluid technology, with similar end-market exposure in food, pharma, and chemicals.
• IMI plc: UK-listed flow control and engineered solutions company serving process industries including steam and process heating. Directly competes with Spirax Sarco in flow control and industrial steam specialties.
• Watts Water Technologies: U.S.-based manufacturer of water and heating products including hydronic heating components. Comparable to Spirax in hydronic steam/hot-water distribution, boiler components, and commercial building thermal applications.
• Sulzer: Swiss industrial company with pumps and process equipment divisions serving chemicals, oil & gas, and water. Comparable to Spirax via Watson-Marlow (peristaltic pumps) and through its Chemtech process solutions in fluid handling and heat transfer.
• GEA Group: German process technology supplier focused on food processing, pharma, and dairy applications. Shares Spirax's vertical exposure in food and pharma, with comparable process engineering and contamination-free fluid handling requirements.
• Xylem: U.S. global water technology company with pumps, treatment, and metering. Comparable to Watson-Marlow in industrial fluid transfer and pumps, particularly in water treatment—a stated Spirax end market.
• IDEX Corporation: U.S. industrial conglomerate with Health & Science and Fluid & Metering Technologies segments, including pump and fluid handling businesses. Direct overlap with Watson-Marlow in peristaltic and specialty pumps for industrial applications.
• Flowserve: U.S.-based manufacturer of pumps, valves, and seals serving power, chemical, and water industries. Comparable to Spirax across industrial fluid handling and steam-adjacent flow control products.
• Grundfos: Danish global pump manufacturer serving commercial buildings, water utilities, and industrial process. Comparable to Spirax in industrial pumping applications and in commercial/industrial building hydronic systems.

Broad incumbents

• Kadant: U.S. supplier of critical components and engineered systems for industrial process industries, including stock preparation and fluid handling. Overlaps with Spirax in industrial process equipment, though more concentrated in pulp/paper.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/spirax-sarco-engineering-plc
• Xx.com/spirax_sarco

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

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

M&A13 records

Investments2 records

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

Frequently asked questions about Spirax-Sarco Engineering