What Cat Tech does

Cat Tech is a privately held, UK-incorporated industrial services company founded in 1973, specializing in catalyst handling services for the refining, chemical, petrochemical, and processing industries. The company provides end-to-end catalyst changeout solutions including dense loading, catalyst passivation, tubular reactor loading, reformer tube loading, confined space entry, and differential pressure testing. Its proprietary technology stack includes the JE Dense Loader (electrically operated with dynamic variable cycle control, capable of loading rates up to 20 tonnes per hour, with over 100 million kg loaded to date), the patented CATnap passivation system (applied to 350+ units worldwide, eliminating the need for nitrogen-environment work), the CATcap tubular loading system, and the CATcade reformer tube loading system (10,000+ tubes loaded). Safety infrastructure is provided through its wholly-owned subsidiary Breathe Safe International, which manufactures the CE-approved Sentry 4 Life Support System for IDLH nitrogen environments.

The company operates through six strategically positioned hubs across the UK, Bulgaria, Singapore, USA, Thailand, and China, with service delivery to 97+ countries and 1,025+ projects completed since 2019. Cat Tech's customer base consists exclusively of enterprise-tier refiners, chemical producers, and catalyst manufacturers, with named logos including ExxonMobil, PTT Global, and Clariant. The business model is project-based contractor services, with pricing quoted per project scope; secondary revenue includes equipment licensing. The company also operates adjacent subsidiaries including Tri-Five Holdings (catalyst warehousing), CatTracer (catalyst handling solutions), and acquired Reactor Services Incorporated for US expansion. Cat Tech completed a management buyout in 2012 under Karl Thew, who co-invented the company's foundational Tubular Loading Device, and transitioned leadership in 2026 with Gareth Leathers appointed CEO.

Name

Cat Tech

Legal name

Cat Tech International Ltd

Website

https://cat-tech.com

Company type

Private

Founded year

1973

Operating status

Operating

Short description

Cat Tech is a privately held UK-based industrial services company providing specialized catalyst handling, dense loading, passivation, and confined-space-entry solutions to enterprise refiners and petrochemical operators globally, supported by proprietary technologies and 6 international hubs.

Ownership category

akta.pro rank

Headquarters

HQ city

Lincoln

HQ country

United Kingdom

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Catalyst Handling Services: Project-based professional services for catalyst handling including dense loading, catalyst passivation, tubular loading, confined space entry, and associated services. Services are provided on a contractor basis for refineries, chemical, petrochemical and processing industries globally.
2. Specialist Equipment & Technology Licensing: Provision of proprietary catalyst handling equipment and technologies including JE Loader, CATnap, CATcap, and CATcade systems. Equipment can be operated by Cat Tech personnel or licensed to clients.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels6 records

Core offering

Cat Tech is a specialist industrial contractor providing catalyst handling services — including dense loading, catalyst passivation, tubular loading, reformer tube loading, and confined-space entry with life-support systems — for refineries, chemical, petrochemical and processing plants worldwide. Services are delivered on a contractor basis using proprietary, patented equipment (JE Dense Loader, CATnap, CATcap, CATcade, Sentry 4) by Cat Tech personnel mobilized globally from six operational hubs.

Product overview

Cat Tech is a specialized catalyst handling company offering a comprehensive portfolio of proprietary technologies and services for the refining, chemical, petrochemical, and processing industries. The core offering centers on their patented dense loading systems (JE Dense Loader and TURBOcat Dense Loader) for maximizing reactor performance, alongside specialized tubular loading (CATcap), catalyst passivation (CATnap), and reformer tube loading (CATcade) technologies. The company provides end-to-end catalyst handling services including DP testing, inert entry, ammonia services, CD Tech tower installation, and renewable energy sector support. Their Sentry 4 Life Support System (manufactured by subsidiary BreatheSafe International) provides safety infrastructure for all confined space operations. Services are delivered globally through 6 operational hubs across Europe, Americas, and Asia-Pacific.

Differentiator

Problem solved

Functional benefit

Brands

• Breathe Safe International: Industry leaders in providing bespoke solutions for hazardous environments, including the Sentry 4 Life Support System
• Tri-Five Holdings
• CATnap
• CATcap
• CATcade
• JE Loader
• TURBOcat Dense Loader
• CatTracer

Products and services

• JE Dense Loader Service High-performance dense loading service using the proprietary JE Loader with dynamic variable cycle (DVC) speed control, enabling responsive real-time adjustments for maximum profile efficiency. Capable of loading rates up to 20 tonnes per hour across reactors from 0.5m to 6.0m ID, with over 100 million kg loaded to date. Provided as a contracted catalyst loading service for refining, chemical and petrochemical operators.
• TURBOcat Dense Loader Service Air-driven dense loading service capable of loading rates up to 25m³ per hour, offered as an alternative to the JE Loader for catalyst loading operations for refinery and petrochemical clients.
• CATcap Tubular Loading Service Tubular reactor loading service using the proprietary CATcap system — featuring air lances, specialized nozzles, CATcap insert loading, inline dedusting, dehumidification and climate control, timer-controlled grit blasting, and automated DP Capture — providing high uniformity and consistent loading for tubular reactors in chemical and petrochemical plants.
• CATnap Catalyst Passivation Service Patented passivation service that coats catalyst surfaces during a modified reactor shutdown to suppress self-heating and toxic/pyrophoric dust, eliminating the need for dangerous nitrogen-filled environment entry during hydrotreater and hydrocracker maintenance. Applied to over 350 units worldwide.
• CATcade Reformer Tube Loading Service Reformer tube loading service using the proprietary CATcade system to load reformer tubes with reduced human error and material fatigue, delivering high quality and more consistent DP results in all conditions. Approved by all major catalyst manufacturers, with over 10,000 tubes loaded.
• DP Testing Service Differential pressure testing service for verifying fully homogeneous reactor loading, combining blow-down and DP measurement steps to reduce reactor changeout time. Uses up to 20 measurement devices per vessel with the ability to measure DP from bottom tube sheet.
• Inert Entry Service Confined space entry service using the CE-approved Sentry 4 Life Support System, providing turnkey mechanical services, catalyst unloading, dense loading, inert welding and repairs, and catalyst screening in hazardous nitrogen (IDLH) environments.
• CD Tech Tower Installation Service Installation service for CD Tech catalytic distillation tower technology, originally developed alongside Shell, providing catalyst bale removal and replacement in refinery distillation columns.
• Ammonia Services Comprehensive catalyst handling service for the ammonia industry including Sentry 4 Life Support, unloading, in-situ oxidation, expansion bellow replacement, gray lock removal, screening, and dense loading for all vessels in the syngas loop.
• Renewables Catalyst Handling Service Specialized catalyst handling service for renewable and biodegradable fuel production facilities, addressing gummy or agglomerated catalyst from biomass feedstock pre-treatment guard beds and shorter-notice catalyst changeouts.
• Sentry 4 Life Support System CE-approved breathing apparatus life support system manufactured by Breathe Safe International Ltd, a wholly-owned Cat Tech subsidiary. Provides the safety platform enabling all Cat Tech confined-space-entry operations in hazardous (IDLH) environments.

Quantifiable outcome

• CATnap eliminates inert entry and shortens reactor shutdown by days
• +4 more outcomes

Named customers8 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Three partnerships are on record, tiered core and minor.

• Breathe Safe InternationalcoreStrategic or Co-development PartnerSubsidiary company established in 2012 during Cat Tech MBO. Develops and manufactures CE approved Sentry 4 Life Support System for confined space entry in hazardous environments. Breathe Safe specialises in bespoke solutions for hazardous environments.
• Tri-Five HoldingsminorOthersRelated entity managing catalyst warehousing business. Part of Tri-Five Holdings group.
• ClariantcoreStrategic or Co-development PartnerLeading catalyst manufacturer. Cat Tech presented CATCade and CATCap technologies at Clariant's Innovative Catalysts & Future Technologies APAC 2023 seminar in Pattaya, Thailand. Working relationship with major catalyst manufacturers globally.

Scale indicators8 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• Mistras Group: Mistras Group provides industrial inspection, mechanical services, and asset integrity solutions to refineries, petrochemical plants, and other process industries. Adjacent service offering to Cat Tech's catalyst handling and turnaround support work.
• Applus+ (Team Industrial Services parent): Applus+ is a global testing, inspection, and certification company with extensive refining and petrochemical services. Relevant as a large diversified industrial services incumbent serving the same end customers as Cat Tech across multiple regions.
• Clean Harbors: Clean Harbors is a major North American industrial and environmental services provider serving refineries, chemical plants, and other industrial customers. Overlaps with Cat Tech in industrial services, environmental, and turnaround work for energy customers at much larger scale.
• Sulzer Chemtech: Sulzer's Chemtech division provides mass transfer and separation technologies plus specialized field services and equipment for refining and petrochemical operators. Broader manufacturing/services portfolio than Cat Tech but overlapping in petrochemical catalyst adjacent services and turnaround delivery.
• Wood Group: Wood is a global engineering and industrial services firm serving oil & gas, refining, petrochemical, and process industries. Overlaps with Cat Tech in turnaround, maintenance, and specialist services for refining customers across multiple geographies.
• Bilfinger: Bilfinger is a European-based industrial services provider for process industries including oil & gas, chemical, and petrochemical customers. Offers maintenance, turnaround, and consulting services that overlap with Cat Tech's refinery turnaround and catalyst handling offerings.

Direct peers

• Team Industrial Services: Team Industrial Services provides specialized industrial services including catalyst handling, mechanical services, inspection, and turnaround support to refineries and petrochemical plants. Directly comparable in service offering, customer base, and project-based delivery model.
• Strickland Group / Altair Strickland: Strickland Group (previously Altair Strickland) is a specialist catalyst handling and reactor services contractor serving refineries and petrochemical plants, notably in the Middle East. Directly comparable niche peer historically mentioned in senior team backgrounds.
• Mourik: Mourik is an industrial services contractor providing catalyst changeout, confined space entry, and turnaround services for refineries and petrochemical facilities across Europe and internationally. Directly comparable to Cat Tech's core catalyst handling business and similar customer profile.
• Contract Resources (CR): Contract Resources is a specialist industrial services contractor focused on catalyst handling, confined space entry, and shutdown/turnaround services for refineries and petrochemical plants. Directly comparable to Cat Tech in core service offering, customer base, and proprietary equipment focus (named in Karl Thew's employment history).

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/cat-tech-international-ltd-
• Xx.com/CatTechLtd
• Facebookfacebook.com/Cat.Tech.International

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

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 Cat Tech