HTRI

What HTRI does

HTRI (Heat Transfer Research, Inc.) is a privately held, member-based research consortium and engineering software company founded in 1958 and headquartered in Navasota, Texas. The company develops and licenses Xchanger Suite, a thermal process design and simulation software platform for shell-and-tube, air-cooled, plate, and fired-heater heat exchangers, along with complementary products such as SmartPM (thermo-hydraulic fouling and digital twin simulation), Exchanger Optimizer (with a Greenhouse Gas Emissions Module), XSimOp, and Edgeview. Its methods are grounded in six decades of proprietary experimental data generated at its in-house Research & Technology Center, which underpins the company's heat transfer correlations and CFD capabilities.

The company serves 1,000+ member organizations across 65 countries, concentrated in oil & gas, refining, petrochemicals, nuclear power, food and beverage, and — increasingly — data center cooling. Revenue is generated through a multi-stream model: consortium membership dues, software licensing, paid training courses (US$450–$650 per course) delivered globally through the Heat Transfer Academy, proprietary testing and consulting contracts, technical publications, and annual Global Conference fees. GTM is direct-sales-led and event-driven, anchored by regional Communication Committees, an annual flagship conference, and a worldwide training and webinar program.

HTRI is independently operated under President Hans U. Zettler with no disclosed venture capital, private equity backing, or parent company. Its strategic priorities visible in the input data include expanding the data center vertical, adding sustainability-oriented product features (GHG Emissions Module, CWFU), and deepening recurring revenue from training and digital-twin products.

Name

HTRI

Legal name

Heat Transfer Research, Inc.

Website

https://htri.net

Company type

Private

Founded year

1958

Operating status

Operating

Headcount range

101–250 employees

Short description

HTRI (Heat Transfer Research, Inc.) is a member-based research consortium that develops and licenses the Xchanger Suite thermal process design and simulation software, serving 1,000+ industrial members across 65 countries in oil & gas, refining, petrochemicals, nuclear, food processing, and data center cooling.

Ownership category

akta.pro rank

Product category

Thermal Engineering Software & Heat Transfer Research

NAICS

Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (3334), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341)

SIC

Services-Testing Laboratories (8734), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Heat Exchangers, Coils & Hydronic HVAC Components (IMADANAF)

akta.pro secondary industry

HVAC Equipment (Heating, Cooling & Air Handling) (IMAHAKAB)

Keywords

• Heat transfer research
• Thermal process simulation
• Heat exchanger design software
• Fired heater simulation
• Refinery fouling management

Headquarters

HQ city

Navasota

HQ country

United States

HQ region

North America

Offices8 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Software Licenses/Subscriptions: Members receive access to Xchanger Suite software, considered the industry's most advanced thermal process design and simulation software. The membership model provides ongoing access to software updates and technical support.
2. Training Services: HTRI conducts onsite and regional training around the globe including workshops for Xist, Xfh Ultra, Xvib, Xace, and short courses on condensers, kettle reboilers, vaporizers, and troubleshooting. Course fees range from US$450-$650 per course with PDH/CEU credits.
3. Proprietary Contracts: Custom testing, consulting, and software solutions for addressing diverse heat exchanger problems. Includes proprietary testing, computational fluid dynamics, and fouling services.
4. Technical Publications: Revenue from research reports, guidebooks, design manuals, and other publications on heat transfer topics.
5. Conference & Event Fees: Revenue from annual Global Conference and Industry Exhibition, including sponsorship options and exhibition booth fees.

Pricing tiers

Go-to-market motion2 records

Distribution channels6 records

Marketing channels10 records

Core offering

HTRI is a member-based research consortium that develops and licenses the Xchanger Suite, the industry's most advanced thermal process design and simulation software for heat exchangers. The company sells software licenses (Xchanger Suite, Xfh Ultra, SmartPM, Exchanger Optimizer, XSimOp, Edgeview), delivers paid training through the Heat Transfer Academy, and provides custom testing, CFD, and consulting services from its Research & Technology Center in Navasota, Texas.

Product overview

HTRI (Heat Transfer Research, Inc.) offers a comprehensive portfolio of thermal process design and simulation software centered around Xchanger Suite, the industry's most advanced heat exchanger design platform. Xchanger Suite includes multiple integrated components: Xist for shell-and-tube exchanger geometries, Xvib for flow-induced vibration analysis, Xace for air-cooled heat exchangers, Xphe for plate-and-frame heat exchangers, and Xfh/Xfh Ultra for fired heater modeling. Additional products include SmartPM for digital twin simulation of shell-and-tube networks focused on fouling management, Exchanger Optimizer for heat exchanger optimization with greenhouse gas emissions tracking, XSimOp for shell-and-tube operations, and Edgeview for monitoring. HTRI also provides training services through the Heat Transfer Academy, proprietary testing services, CFD analysis, fouling services, and research into specialized technologies like Vapor Infusion. The company serves over 1,000 members across 65 countries with a focus on the energy, refining, and chemical processing industries.

Differentiator

Problem solved

Functional benefit

Brands

• Xchanger Suite: Industry's most advanced thermal process design and simulation software suite for heat exchangers
• Xfh Ultra
• SmartPM
• Exchanger Optimizer
• XSimOp
• Edgeview
• Research & Technology Center (RTC)
• Heat Transfer Academy

Products and services

• Xchanger Suite HTRI's flagship thermal process design and simulation software for heat exchangers, including integrated components: Xist (shell-and-tube exchangers), Xvib (vibration analysis), Xace (air-cooled heat exchangers), Xphe (plate-and-frame heat exchangers), and Xfh/Xfh Ultra (fired heaters). Sold to industrial member companies and used by engineers worldwide for daily operating benefits.
• Xfh Ultra Software for modeling the performance of process fired heaters using API 560 Specification Sheets to develop complete fired heater models and rate heater performance. Sold to engineers in refining and petrochemical member companies.
• HTRI SmartPM Digital twin technology for thermo-hydraulic shell-and-tube network simulation. Manages refinery fouling, predicts performance, supports energy efficiency improvement and emissions reduction, and enables predictive and preventive maintenance.
• Exchanger Optimizer Heat exchanger optimization software that includes a Greenhouse Gas Emissions Module to help enhance energy efficiency and reduce emissions. Sold to member companies as a standalone optimization tool.
• XSimOp Software tool for shell-and-tube heat exchanger simulation and operations support, used by member companies for operational modeling and what-if analysis.
• Edgeview Software component for heat exchanger monitoring and analysis, providing technical monitoring and analysis capabilities to member companies.
• Xchanger Suite Educational Educational version of the Xchanger Suite software offered for academic institutions and training purposes.
• Proprietary Testing Services Contract testing services for external clients performed at HTRI's Research & Technology Center, addressing diverse heat exchanger problems through custom physical testing.
• Computational Fluid Dynamics (CFD) Services CFD analysis services using computational methods to model fluid flows and heat transfer for member companies and clients on proprietary contracts.
• Fouling Services Research and services related to heat exchanger fouling mitigation, measurement, and analysis. Includes the new Cooling Water Fouling Unit (CWFU) capability for cooling water systems.
• Heat Transfer Academy Comprehensive training program offering online and in-person courses, workshops, and educational resources on HTRI software (Xist, Xfh Ultra, Xvib, Xace) and heat transfer concepts. Course fees range from US$450-$650 with PDH/CEU credits; regional training events held globally.
• Vapor Infusion Technology Proprietary technology for various applications involving vapor infusion processes, offered to member companies seeking advanced process capabilities.

Quantifiable outcome

• Xist predicted heat transfer area fraction under submergence within ±10% of measured values for cases with up to 60°C subcooling
• +2 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Aspen Technology (AspenTech, part of Emerson): AspenTech is the dominant process simulation software provider for refining and chemicals, with overlapping heat transfer and heat exchanger design modules. It is the most direct software competitor within HTRI's core O&G/petchem customer base.
• Ansys: Ansys provides multiphysics engineering simulation (Fluent, etc.) that competes with HTRI's CFD services and increasingly overlaps with thermal process design. It serves a much broader engineering customer base including aerospace, automotive, and electronics.
• COMSOL: COMSOL offers multiphysics simulation software used by engineers and researchers for heat transfer and CFD-adjacent analysis. It is a general-purpose alternative for customers evaluating dedicated heat exchanger tools.
• Alfa Laval: Alfa Laval is a major heat exchanger manufacturer (plate, brazed, shell-and-tube) and operates its own thermal design engineering organization. While primarily a hardware company, its in-house design tooling and customer engineering services make it an adjacent competitor and ecosystem participant.
• Kelvion: Kelvion is a global heat exchanger manufacturer offering shell-and-tube, plate, and air-cooled designs. As an OEM, it uses thermal design software internally and sells engineering services to industrial customers, making it both a potential HTRI member and a peer.
• Hexagon (Asset Lifecycle Intelligence / CADWorx): Hexagon's PPM/Asset Lifecycle division (Intergraph, CADWorx, PV Elite) provides engineering and pressure vessel design software used by the same EPC and process-industry customers as HTRI, with adjacent thermal and mechanical design capabilities.
• Siemens Digital Industries Software (Simcenter): Siemens Simcenter offers thermal and CFD simulation tools (STAR-CCM+, Flotherm) used in process, electronics cooling, and HVAC applications — directly overlapping with HTRI's heat transfer and data center cooling use cases.
• Yokogawa Electric (formerly KBC Advanced Technologies): Yokogawa (via the acquired KBC/Aveva process simulation business) provides process optimization and digital twin software for refining and petrochemicals, overlapping with HTRI's SmartPM fouling/digital twin offering.

Direct peers

• Thermon Group Holdings: Thermon manufactures electric heat tracing and process heating systems for industrial customers, with its own engineering design and thermal modeling services. It is a smaller-scale, more specialized peer serving the same process industries.

Regional players

• Heatric (a Chart Industries company): Heatric designs and manufactures printed circuit heat exchangers (PCHEs) and provides thermal design services, often requiring advanced heat transfer simulation. It is a smaller, more specialized peer within the same heat exchanger ecosystem.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/HeatTransfer
• LinkedInlinkedin.com/company/heat-transfer-research-inc.

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 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 HTRI