Cal Gavin

What Cal Gavin does

Cal Gavin is a UK-headquartered engineering company founded in 1980 that designs, manufactures, and supplies heat transfer enhancement technology for tubular heat exchangers and reactors serving global process industries. The company's flagship product is the hiTRAN Thermal Systems line of wire matrix turbulators, which are inserted inside tubes to increase tube-side heat transfer coefficients by up to 16x relative to empty tubes, particularly in laminar and transitional flow regimes. The portfolio is complemented by twisted tape inserts, the proprietary CALGAVIN.SP design and selection software (delivered as a plug-in for HTRI Xchanger Suite and AspenTech EDR or as a standalone tool), and a suite of engineering services including thermal design consultation, CFD analysis using ANSYS CFX and Fluent, and on-site installation supervision.

Cal Gavin monetises primarily through custom-engineered product sales (one-time project revenue) and professional services for design, CFD, and installation, with all pricing conducted on a quote basis; the CALGAVIN.SP software itself is offered free after vetting to drive product specification. Customers include Shell, BP, TotalEnergies, PEMEX, PTT, Braskem, Dow Chemical, INEOS, SINOPEC, Indian Oil, Kuwait Oil Company, BASF, Woodside, Praxair, DEWA, and General Electric, spanning offshore oil & gas, refining, petrochemicals, natural gas processing, and power generation. Sales are executed through a global network of 15+ technical representative agents (Germany, India, Indonesia, Japan, Mexico, South Africa, South Korea, Taiwan, Turkey, Saudi Arabia, Bahrain, Pakistan, France, Thailand, USA) supported by direct engagement from the Alcester headquarters, with more than 90% of products and services exported to approximately 40 countries. The firm is privately held by founder Martin Gough with no disclosed external investors or parent company, operates under ISO 9001:2015 certification, and in 2024 opened the Centre for Flow Processing research facility in partnership with the University of Birmingham to extend its R&D base beyond product engineering.

Name

Cal Gavin

Legal name

CALGAVIN Limited

Website

https://calgavin.com

Company type

Private

Founded year

1980

Operating status

Operating

Headcount range

11–50 employees

Short description

Cal Gavin is a UK engineering firm founded in 1980 that designs and manufactures hiTRAN wire matrix turbulators and twisted tape inserts to enhance heat transfer in tubular heat exchangers, serving global oil & gas, refining, petrochemical, gas processing, and power generation customers via direct sales and a 15-country agent network.

Ownership category

akta.pro rank

Product category

Heat Transfer Enhancement Equipment

NAICS

Power Boiler and Heat Exchanger Manufacturing (33241)

SIC

Heating Equipment, Except Electric & Warm Air Furnaces (3433)

akta.pro primary industry

Heat Exchangers & Thermal Transfer Equipment (IMAHAKAC)

akta.pro secondary industries

Heat Exchangers, Coils & Hydronic HVAC Components (IMADANAF), Gas Processing Plant Equipment & Skids (Separators, Heat Exchangers, Turboexpanders) (EUAAABAH)

Keywords

• Heat transfer enhancement
• Tube-side turbulators
• Heat exchanger design
• Computational fluid dynamics
• Process engineering services

Headquarters

HQ city

Alcester

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. hiTRAN Thermal Systems Products: Custom-designed and manufactured tube-side enhancement products sold to operators of process plants, OEMs, and contractors. Products are engineered based on process analysis using CALGAVIN.SP. Revenue from both new designs and retrofit applications.
2. Twisted Tape Products: Manufactured twisted tape products sold for heat transfer enhancement applications.
3. Engineering Design Services: Thermal design analysis, heat exchanger auditing, performance verification, and consultation services. Uses HTRI Xchanger Suite, Aspen EDR, and CALGAVIN.SP tools for evaluations.
4. CFD Analysis Services: Computational fluid dynamics investigations for troubleshooting, performance verification, and design optimization.
5. Installation Supervision Services: On-site installation supervision and training services for hiTRAN products.
6. CALGAVIN.SP Software: Free proprietary software available after company registration and vetting process. Integrates with HTRI and Aspen design software. Revenue opportunity through increased product specification.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels8 records

Core offering

CALGAVIN designs, manufactures and supplies tube-side heat transfer enhancement products — primarily hiTRAN® wire matrix turbulators and twisted tape inserts — for tubular heat exchangers and reactors. The company complements its physical products with proprietary CALGAVIN.SP design software and engineering services including thermal design consultation, CFD analysis (ANSYS CFX/Fluent), and supervised installation.

Product overview

CALGAVIN is an engineering company providing heat transfer enhancement solutions, founded in 1980 and headquartered in the UK. The product portfolio centers on hiTRAN® Thermal Systems as the flagship technology, complemented by CALGAVIN.SP design and selection software (available as plug-in for HTRI/Aspen or standalone), and Twisted Tape as an alternative turbulator product. Engineering services include thermal design consultation, CFD analysis, and supervised installation. The company serves industries including offshore oil and gas, refining, petrochemicals, gas processing, and power generation, with global representation through technical agents in over 15 countries.

Differentiator

Problem solved

Functional benefit

Brands

• hiTRAN® Thermal Systems: Established tube-side heat transfer enhancement technology using wire matrix elements (turbulators) installed in tubular heat exchangers and reactors.
• CALGAVIN.SP® Software
• Twisted Tape
• Centre for Flow Processing

Products and services

• hiTRAN Thermal Systems Tube-side heat transfer enhancement technology for tubular heat exchangers and reactors. Uses wire matrix elements (turbulators) installed inside tubes to enhance heat transfer, particularly effective for laminar and transitional flow regimes. Increases tube-side heat transfer coefficient up to 16x depending on Reynolds number and geometry. Manufactured from materials including stainless steels, Hastelloy, tantalum, and silver for tube diameters 6mm to 150mm. For process plant operators, OEMs, and contractors in oil and gas, refining, petrochemicals, gas processing and power generation.
• CALGAVIN.SP Software Proprietary design and selection software for calculating tube-side heat transfer and pressure drop in hiTRAN-enhanced heat exchangers. Available as a plug-in for HTRI Xchanger Suite and Aspen Exchanger Design & Rating, or as standalone hiTRAN.SP for users without those platforms. Features automatic hiTRAN geometry selection, unique part number generation, graphical performance panels, wall correction factors and U-tube calculations. Covers Reynolds Number range 0.1 to 200,000 and Prandtl Number range 0.5 to 12,000. Used by process engineers and heat exchanger designers globally; over 300 users worldwide.
• Twisted Tape Traditional heat transfer enhancement device using flat metal strips twisted into regular patterns to induce swirl flow in tube-side fluid. Offers moderate enhancement at relatively low pressure increase across laminar, transitional and turbulent flow regimes. Manufactured by CALGAVIN with comprehensive product specification. Alternative to hiTRAN for specific high Reynolds number applications. For process engineers specifying heat exchangers.
• Design Services Engineering consultation for thermal design and analysis of heat exchangers. Includes evaluation of existing exchanger performance and specifications for new designs with focus on improved efficiency. Uses HTRI Xchanger Suite, Aspen EDR, CALGAVIN.SP, and Exchanger Optimizer tools. For process plant operators, OEMs and EPC contractors evaluating heat exchanger performance or designing new units.
• CFD Services Computational Fluid Dynamics engineering services using ANSYS CFX and ANSYS Fluent to investigate complex fluid flows around heat exchange equipment. Used for vibration analysis, maldistribution studies, bypass issues, and performance verification. Provides velocity/temperature profiles and numerical results to identify problem areas. For plant operators troubleshooting underperforming equipment and engineers validating proposed solutions.
• Installation Services Supervised installation services for hiTRAN Thermal Systems and other CALGAVIN products. Includes optional on-site installation supervision with demonstrations, specialist tools for re-sizing, removal and retention, and training for customer personnel on installation into air cooled heat exchangers, shell and tube exchangers, U-tube bundles, and reactors. For plant operators and contractors deploying hiTRAN products.

Named customers24 records

Segments5 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature4 records

Partnerships

19 partnerships are on record, tiered flagship, core and major.

• University of BirminghamflagshipStrategic or Co-development Partner · 19 September 202445-year collaboration with University of Birmingham's School of Chemical Engineering. Partnership includes joint research, teaching, and professional practice. CALGAVIN's Centre for Flow Processing was officially opened in partnership with the university. Emeritus Professor Jonathan Seville and Pro-Vice-Chancellor Prof. Marika Taylor participated in opening ceremony.
• Research Institute of Industrial Science & Technology (RIST)coreStrategic or Co-development Partner · 19 June 2023R&D Cooperation Memorandum of Understanding signed June 19, 2023. Strategic alliance to push boundaries of thermal processing technologies. Joint research initiatives and development of cutting-edge technology in thermal processing. Facilitated by Mr CY Yoon of EJJV Korea.
• UK Universities (Bath, Birmingham, Braunschweig, Bremen, Edinburgh, Imperial College, Manchester, Nottingham, Queen Mary London)coreStrategic or Co-development PartnerActive research collaboration with UK and overseas universities. Development of research programmes and application of innovation through research into industry. Collaboration on heat and mass transfer, single-phase flow, two-phase flow, and fouling mitigation.
• Energy Industry Partners (Shell, Reliance, ExxonMobil)coreStrategic or Co-development PartnerCollaborated on research with major energy companies. Joint development of process enhancement solutions. These partnerships contribute to product development and performance validation.
• EJJV Korea (CY Yoon)coreChannel Partner/ Reseller/ DistributorTechnical representative agent for CALGAVIN in South Korea. Facilitated the RIST partnership. Responsible for market development and technical support in Korean territory.
• Falk&Thomas Engineering GmbH (Germany)coreChannel Partner/ Reseller/ DistributorTechnical representative for CALGAVIN in Germany since inception. Located in Bad Nauheim, Germany.
• CONTECH KSAcoreChannel Partner/ Reseller/ DistributorTechnical representative for CALGAVIN in Saudi Arabia and Bahrain. Contact: Mr Mazen A. Shaat.
• Entech Engineers (India)coreChannel Partner/ Reseller/ DistributorTechnical representative for CALGAVIN in India. Contact: Mr Ashwin Chandarana based in Vadodara, Gujarat.
• PT Ingenious (Indonesia)coreChannel Partner/ Reseller/ DistributorTechnical representative for CALGAVIN in Indonesia. Contact: Mr Poltak Nainggolan.
• Advanced Process and Engineering Consultancy (APEC) - JapancoreChannel Partner/ Reseller/ DistributorTechnical representative for CALGAVIN in Japan. Contact: Mr Takashi Watanabe in Tokyo.
• Tecnopinch Integral Solutions (Mexico)coreChannel Partner/ Reseller/ DistributorTechnical representative for CALGAVIN in Mexico. Contact: Mr Luis Quillares.
• Mass and Heat Transfer Technology (South Africa)coreChannel Partner/ Reseller/ DistributorTechnical representative for CALGAVIN in South Africa. Contact: Mr Christo M van den Heever.
• Chusco Co., Ltd. (Taiwan)coreChannel Partner/ Reseller/ DistributorTechnical representative for CALGAVIN in Taiwan. Contact: Mr Vincent Chu.
• Engineering Mach. Che. Ind. (Turkey)coreChannel Partner/ Reseller/ DistributorTechnical representative for CALGAVIN in Turkey. Contact: Mr Artun Ertem.
• The Indus Basin Company (Pakistan)coreChannel Partner/ Reseller/ DistributorTechnical representative for CALGAVIN in Pakistan. Contact: Mr Sameer H Dodhy.
• CHEMEXA (France)coreChannel Partner/ Reseller/ DistributorTechnical representative for CALGAVIN in France. Contact: Mr Loic Bernard.
• Optimization Ace Co Ltd (Thailand)coreChannel Partner/ Reseller/ DistributorTechnical representative for CALGAVIN in Thailand. Contact: Mr Warin Raksapao.
• EXTECH International LLC (USA)coreChannel Partner/ Reseller/ DistributorTechnical representative for CALGAVIN in USA. Contact: Mr Jack Piparia based in Houston, TX.
• IChemE (Institution of Chemical Engineers)majorGTM or Marketing PartnerCALGAVIN joined IChemE in new Employer Partnership. Martin Gough served as President of UK Heat Transfer Society. Active participation in IChemE Midlands branch meetings and events.

Scale indicators7 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Holtec International: Holtec supplies heat transfer equipment and ancillary technology to the nuclear, fossil, and process industries. It is a broader incumbent whose heat exchange products intersect with Cal Gavin's process heat transfer business.
• GEA Group: GEA's Heat Exchangers division supplies plate, shell-and-tube, and process heat exchangers to dairy, food, chemical, and marine/oil & gas customers. As a diversified industrial incumbent, it competes with Cal Gavin for process-industry heat transfer business but with a much wider application portfolio.
• Alfa Laval: Alfa Laval is a global leader in heat transfer, separation, and fluid handling — including brazed plate, gasketed plate, and shell-and-tube exchangers used in refining, petrochemicals, and power. It is a broad incumbent whose heat exchanger portfolio overlaps with Cal Gavin's process-industry end markets.

Direct peers

• FUNKE Heat Exchangers: FUNKE designs and manufactures shell-and-tube, plate, and spiral heat exchangers for chemical, petrochemical, oil & gas, and power generation customers. Its product line directly overlaps with Cal Gavin's process-industry heat exchanger focus.
• Hamon: Hamon specializes in heat exchange and cooling solutions — including air-cooled heat exchangers and natural draft coolers — for power, oil & gas, and process industries. Its cooling-focused portfolio is closely aligned with Cal Gavin's heat transfer enhancement offerings.
• API Heat Transfer (now part of LTI): API Heat Transfer manufactures a broad range of heat exchangers — including shell-and-tube, plate, and finned-tube units — for industrial, chemical, and oil & gas applications. It directly overlaps with Cal Gavin's tubular heat exchanger focus in process industries.
• Chart Industries (Heatric division): Chart Industries, via its Heatric (printed-circuit) heat exchangers, targets oil & gas, petrochemical, and offshore applications with compact, high-pressure heat transfer technology. It is a direct peer addressing the same offshore and refining customers Cal Gavin serves with hiTRAN-enhanced tubular units.
• SWEP International (Dover Corporation): SWEP is one of the world's largest suppliers of brazed plate heat exchangers (BPHEs) for HVAC, refrigeration, and process heating applications. While its core product is plate-based rather than tube-based, it competes with Cal Gavin for heat transfer specification in industrial heating and process applications.
• Kelvion (formerly SPX Heat Transfer): Kelvion is a global manufacturer of shell-and-tube, plate, and air-cooled heat exchangers serving oil & gas, petrochemicals, power, and HVAC markets — directly comparable to Cal Gavin's tubular heat exchanger enhancement focus but at substantially larger scale and with broader product breadth.

Others

• ITT Inc. (Engineered Valves & Pumps): ITT's engineered components business supplies pumps, valves, and heat transfer equipment used in industrial process plants. It is adjacent rather than directly competing on tube-side enhancement, but its process-industry customer base overlaps with Cal Gavin's.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/CalGavinltd
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• LinkedInlinkedin.com/company/calgavin-ltd
• Instagraminstagram.com/calgavinltd

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 Cal Gavin