Sigma Thermal, Inc.
Sigma Thermal, Inc. is a privately held U.S. manufacturer of industrial process heating systems — thermal fluid heaters, direct fired heaters, electric process heaters, and waste heat recovery units — serving oil & gas, petrochemical, power generation, aerospace, food & beverage, and general manufacturing customers worldwide via custom and pre-engineered solutions.
- Company typePrivate
- Founded2013
- HeadquartersMarietta, United States
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
What Sigma Thermal, Inc. does
Sigma Thermal, Inc. is a privately held U.S. manufacturer of industrial process heating systems headquartered in Marietta, Georgia, with a regional headquarters in Dubai (Sigma Thermal Middle East FZE) serving Europe, the Middle East, Africa, and Asia-Pacific. The company designs, engineers, fabricates, and commissions custom and pre-engineered thermal fluid heating systems (gas, oil, electric, and biomass-fired), direct fired heaters (API 560 and radiant-convective configurations), electric process heaters (immersion and circulation), process bath heaters, biomass energy systems, industrial waste heat recovery units, high-pressure steam generators, and molten salt heating systems reaching 1,000°F. Core proprietary offerings include the HC2 gas-fired thermal fluid heater (500,000 to 100 MM BTU/hr, 88%+ LHV efficiency with dual helical coil design) and the SHOTS electric thermal fluid heater (30-800 kW), complemented by the Sigma Automation control platform for combustion safety, PLC-based control, and burner management. Manufacturing is performed at an ASME U/S/R-certified and AWS D1.1-compliant 40,000 sq. ft. fabrication facility in Marietta with 60-ton lifting capacity and a UL Listed Panel Shop.
The company's commercial model is project-based and consultative: customers submit purchase orders through a nine-step process spanning mechanical/process/electrical engineering, project management, and commissioning over 8-12+ weeks. Revenue is generated from one-time capital equipment sales, embedded engineering and commissioning services, sales of refurbished equipment, and recurring aftermarket parts, retrofits, upgrades, and field service — including service on legacy brands Flaretec, GTS Energy, and Newpoint Thermal. Pricing is quote-based and never publicly disclosed. Go-to-market combines a global network of regional sales representatives (across North America, Latin America, the UK/Europe, the Middle East/North Africa, and Asia-Pacific) with inside-sales quote funnels and technical content marketing (blog, eBooks, brochures, YouTube, LinkedIn, Thomasnet Verified Supplier). Sigma Thermal has completed 3,000+ projects worldwide across primary verticals (oil & gas, chemical & petrochemical, power generation) and secondary verticals (aerospace, food & beverage, general manufacturing, pulp & paper, mining & minerals, agriculture, asphalt and roofing, municipal waste and sludge drying). The company has maintained ISO 9001:2015 certification since 2013.
Financial ownership and revenue are not publicly disclosed; no outside funding rounds, parent company, or institutional investor backing have been identified, suggesting founder- or closely-held ownership. Headcount sits in the 101-250 range. Core competitive position rests on engineering depth (cross-functional veteran team, nine-step project process), capital intensity (10-acre Marietta campus with heavy-lift fabrication and a parallel Dubai facility), regulatory and code certifications (ISO 9001:2015, ASME U/S/R, AWS D1.1, UL, cUL, CSA, CE, ATEX, IEC Ex, CRN, PED), and a multi-decade installed base that supports a growing aftermarket services annuity.
Sigma Thermal, Inc. firmographics
Firmographics- Name
- Sigma Thermal, Inc.
- Legal name
- Sigma Thermal, Inc.
- Website
- https://sigmathermal.com
- Company type
- Private
- Founded year
- 2013
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Sigma Thermal, Inc. is a privately held U.S. manufacturer of industrial process heating systems — thermal fluid heaters, direct fired heaters, electric process heaters, and waste heat recovery units — serving oil & gas, petrochemical, power generation, aerospace, food & beverage, and general manufacturing customers worldwide via custom and pre-engineered solutions.
- Ownership category
- akta.pro rank
Sigma Thermal, Inc. industry classification
Industry- Product category
- Industrial Process Heating Equipment
- NAICS
- Heating Equipment (except Warm Air Furnaces) Manufacturing (333414), Power Boiler and Heat Exchanger Manufacturing (33241), Power Boiler and Heat Exchanger Manufacturing (332410), Industrial Process Furnace and Oven Manufacturing (333994)
- SIC
- Heating Equipment, Except Electric & Warm Air Furnaces (3433), Industrial Process Furnaces & Ovens (3567), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)
- akta.pro primary industry
- Boilers, Furnaces & Process Heating Equipment (IMAHAKAD)
- akta.pro secondary industries
- Heat Exchangers & Thermal Transfer Equipment (IMAHAKAC), Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC), Waste Heat Recovery & Heat Integration (HRSG/ORC, Pinch Analysis, Heat Exchangers) (EUABAJAF), Process Skids & Modular Process Systems (Packaged Units) (IMAHAEAH)
Keywords
Where Sigma Thermal, Inc. is headquartered
LocationHeadquarters
- HQ city
- Marietta
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Sigma Thermal, Inc. business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Operations, Supply Chain, Personnel, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Process Heating Equipment Sales: Sigma Thermal designs, engineers, and manufactures process heating systems including thermal fluid heaters, direct fired heaters, electric process heaters, process bath heaters, biomass energy systems, high-pressure steam generators, and waste heat recovery units. Products are sold as pre-engineered (standard configurations) or custom-engineered systems. Pre-engineered products (HC2, SHOTS) facilitate quick fulfillment; custom products follow a 9-step project process spanning 8–12+ weeks from PO to commissioning.
- Aftermarket Parts and Services: Comprehensive aftermarket support including replacement parts, field service, commissioning, retrofits/upgrades for Sigma Thermal equipment as well as Flaretec, GTS Energy, and Newpoint Thermal brands. The company also offers spare parts management guidance and maintenance services for process heating systems.
- Refurbished Heaters: Sale of refurbished and reconditioned process heaters, providing a more cost-effective alternative to new equipment for certain customers.
- Engineering, Design, and Commissioning Services: Project management, mechanical/process/electrical engineering, and commissioning services integrated into the overall project delivery process. These services are embedded in the project lifecycle from PO submission through commissioning.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom project-based pricing |
Go-to-market motion2 records
Distribution channels4 records
Marketing channels6 records
Sigma Thermal, Inc. product offering
Product offeringCore offering
Sigma Thermal designs, engineers, and manufactures industrial process heating systems and provides related automation, commissioning, and aftermarket services. The portfolio spans thermal fluid heating systems (gas-fired HC2 and electric SHOTS), direct fired heaters, electric process heaters (immersion and circulation), process bath heaters, biomass energy systems, industrial waste heat recovery units, high-pressure steam generators, and molten salt heating systems. Sales are conducted project-by-project through direct enterprise sales and a global representative network, with manufacturing performed at an ASME U/S/R-certified facility in Marietta, Georgia.
Product overview
Sigma Thermal, Inc. is a manufacturer of industrial process heating systems with a portfolio of heating equipment and related services. The product lineup centers on thermal fluid heating systems (including HC2 Gas Fired Heaters and SHOTS Electric Heaters), electric process heaters (immersion and circulation heaters), direct fired heaters, process bath heaters, biomass energy systems, industrial waste heat recovery systems, high-pressure steam generators, and molten salt heating systems. These products are complemented by automation solutions (Sigma Automation control systems) and comprehensive aftermarket services including parts, maintenance, and retrofits. The company also supports legacy brands (Flaretec, GTS Energy, Newpoint Thermal) through aftermarket services.
Differentiator
Problem solved
Functional benefit
Brands
- Flaretec: Brand supported by Sigma Thermal offering expert service and original system data for flare systems.
- GTS Energy
- Newpoint Thermal
- SHOTS
Products and services
- Thermal Fluid Heating Systems Indirect heating systems that heat and circulate liquid-phase heat transfer medium (thermal oil, glycol, or water) through a closed-loop system to provide process heat for industrial applications; available in gas-fired, oil-fired, electric, and biomass-fired configurations reaching temperatures up to 800°F at low pressures.
- HC2 Gas-Fired Thermal Fluid Heaters Pre-engineered thermal fluid heaters in vertical up-fired, vertical down-fired, and horizontal configurations, ranging from 500,000 to 100 MM BTU/hr, with dual helical coil design, three flue gas passes, ≥88% base efficiency on an LHV basis (>93% with economizer), liquid or vapor-phase service up to 675°F, and Sigma Automation advanced controls.
- SHOTS Electric Thermal Fluid Heaters Sigma Hot Oil Transfer System electrically powered thermal fluid heating systems with low watt density immersion bundle and circulation pump, capacities from 30kW to 800kW, liquid phase service to 600°F, NFPA 87 compliant, skid-mounted design with modulating controls, safety interlocks, and integrated control system.
- Electric Process Heaters Industrial electric process heaters that convert electrical energy into thermal energy to heat process fluids, including immersion and circulation designs, typically rated 2 to 60 watts per square inch.
- Direct Fired Heaters Process heaters where burners provide hot gases that transfer heat to liquids or gases flowing through coils inside the vessel, offered in convection, API 560-compliant, and radiant-convective styles from 1 MM to 80 MM Btu/hr; radiant-convective designs achieve 92% thermal efficiency.
- Process Bath Heaters Indirect heating systems where process coils are submerged into a heated bath (water-glycol or molten salt), including water bath heaters, salt bath heaters, and direct-fired reboilers for safely heating liquids and gases.
- Biomass Energy Systems Industrial heating systems that combust waste materials efficiently while minimizing emissions, using fuels including agricultural/wood waste; includes wet biomass furnaces, secondary combustion chambers, suspension burners, and biomass-fired thermal fluid heaters.
- Industrial Waste Heat Recovery Systems Heat exchanger systems that recover thermal energy from hot exhaust and gases discharged by industrial equipment such as incinerators and turbines, repurposing the energy to heat other media and materials including asphalt and oil.
- High-Pressure Steam Generators Steam generation systems for industrial process heating applications, including edible oil deodorizers.
- Molten Salt Heating Systems High-temperature heating systems using molten salts (fluoride, chloride, nitrate) operating at 1,000°F or higher with minimal vapor pressure; includes circulated molten salt systems, hot salt tanks, and salt bath heaters for heat treating, annealing, and thermal energy storage applications.
- Refurbished Heaters Pre-owned and refurbished thermal fluid heaters available for customers seeking cost-effective alternatives to new equipment, with inventory varying by availability.
- Aftermarket Parts and Services Comprehensive aftermarket support covering parts supply, field service, maintenance, retrofits, and upgrades for Sigma Thermal equipment and supported legacy brands (Flaretec, GTS Energy, Newpoint Thermal).
Quantifiable outcome
- HC2 gas-fired heaters achieve base efficiency of at least 88% on an LHV basis; with economizer options exceeding 93% efficiency
- +5 more outcomes
Companies that use Sigma Thermal, Inc.
Customer profileNamed customers10 records
Segments7 records
Ideal customer profiles4 records
Sigma Thermal, Inc. technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature9 records
Sigma Thermal, Inc. partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core.
- FlareteccoreFlaretec is one of the Sigma Brands supported by Sigma Thermal. Sigma Thermal provides expert service, original system data, and aftermarket support for Flaretec systems, offering replacement parts, retrofits, and technical support for customers with Flaretec equipment.
- GTS EnergycoreGTS Energy is one of the Sigma Brands supported by Sigma Thermal. Sigma Thermal provides expert service, original system data, and aftermarket support for GTS Energy systems, including field service, parts, and retrofits.
- Newpoint ThermalcoreNewpoint Thermal is one of the Sigma Brands supported by Sigma Thermal. Sigma Thermal provides expert service, original system data, and aftermarket support for Newpoint Thermal systems, offering spare parts and service support.
Scale indicators5 records
Recent moves6 records
Expansion highlights5 records
Sigma Thermal, Inc. competitors and assessment
Company assessmentDirect peers
- Vapor Power International: Vapor Power specializes in thermal fluid heaters, electric boilers, and steam generators — a direct peer to Sigma Thermal's HC2 gas-fired thermal fluid heaters and SHOTS electric thermal fluid systems serving similar process industries.
- Chromalox: Chromalox is a direct peer in industrial electric process heating, manufacturing immersion heaters, circulation heaters, and process heating systems for oil & gas, chemical, and power generation customers — overlapping closely with Sigma Thermal's electric process heater line and SHOTS offering.
- Pick Heaters: Pick Heaters specializes in direct steam injection heating for industrial process applications — a direct peer to Sigma Thermal's process heating portfolio, particularly competing on steam-based process heating solutions for similar chemical and food processing customers.
- Thermon Group Holdings: Thermon provides process heating solutions for pipelines, vessels, and instrumentation in oil & gas, power, and chemical industries — directly comparable to Sigma Thermal's fuel gas conditioning, tank heating, and process heating offerings for similar customers.
- Fulton Boiler Works: Fulton manufactures thermal fluid heaters, steam boilers, and hot water boilers for industrial process heating — directly comparable to Sigma Thermal's thermal fluid and steam generation product lines, serving overlapping chemical, food, and manufacturing customers.
- Heatec: Heatec (a Heico company) manufactures thermal fluid heaters and process heating equipment for the asphalt and industrial markets — directly comparable to Sigma Thermal's thermal fluid and process bath heater lines, particularly competing in the asphalt/heating oil segment.
- Watlow: Watlow is a direct competitor in industrial process heating and thermal solutions, offering electric heaters, temperature controllers, and complete thermal systems across the same oil & gas, petrochemical, aerospace, and food & beverage verticals served by Sigma Thermal.
- Armstrong International: Armstrong International provides industrial process heating, steam, and hot water solutions including heat transfer and fluid handling — directly comparable to Sigma Thermal's process bath heaters, steam generators, and thermal fluid systems for process industries.
Broad incumbents
- Cleaver-Brooks: Cleaver-Brooks is a broad incumbent in industrial boiler and process heating, offering a much wider portfolio (firetube, watertube, heat recovery, electric) and an extensive service network — competing with Sigma Thermal across heating equipment while also addressing larger boiler/steam applications.
- Spirax-Sarco Engineering: Spirax-Sarco is a broad incumbent in steam and process heating solutions, offering steam generators, heat transfer, controls, and aftermarket services globally — overlapping with Sigma Thermal's steam generation, process heating, and aftermarket businesses at a much larger scale.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks6 records
Key highlights7 records
Customer concentration
Sigma Thermal, Inc. social profiles
Digital presenceSigma Thermal, Inc. compliance and trust
Trust signalCompliance10 records
Sigma Thermal, Inc. financial estimates
Financial estimateRevenue estimate
Valuation estimate
Sigma Thermal, Inc. leadership team
Management profileNumber of profiles
Profiles2 records
Sigma Thermal, Inc. subsidiaries and ownership
Company hierarchySubsidiaries1 record
Sigma Thermal, Inc. funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Sigma Thermal, Inc. M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Sigma Thermal, Inc.
What does Sigma Thermal, Inc. do?
Sigma Thermal designs, engineers, and manufactures industrial process heating systems and provides related automation, commissioning, and aftermarket services. The portfolio spans thermal fluid heating systems (gas-fired HC2 and electric SHOTS), direct fired heaters, electric process heaters (immersion and circulation), process bath heaters, biomass energy systems, industrial waste heat recovery units, high-pressure steam generators, and molten salt heating systems. Sales are conducted project-by-project through direct enterprise sales and a global representative network, with manufacturing performed at an ASME U/S/R-certified facility in Marietta, Georgia.
Is Sigma Thermal, Inc. a public or private company?
Sigma Thermal, Inc. is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Sigma Thermal, Inc. founded?
Sigma Thermal, Inc. was founded in 2013. It employs 101 to 250 people.
Where is Sigma Thermal, Inc. based?
Sigma Thermal, Inc. is headquartered in Marietta, United States, in the North America region.
How does Sigma Thermal, Inc. make money?
Four revenue lines are on record. Process Heating Equipment Sales are the primary driver. The others are aftermarket Parts and Services, refurbished Heaters and engineering, Design, and Commissioning Services.
Who are Sigma Thermal, Inc.'s main competitors?
Direct peers on record are Vapor Power International, Chromalox, Pick Heaters, Thermon Group Holdings, Fulton Boiler Works, Heatec, Watlow and Armstrong International. Broad incumbents are Cleaver-Brooks and Spirax-Sarco Engineering.
Does Sigma Thermal, Inc. have an API?
No public API is recorded for Sigma Thermal, Inc..
What industry is Sigma Thermal, Inc. in?
Sigma Thermal, Inc.'s product category is Industrial Process Heating Equipment. Its primary akta.pro industry code is IMAHAKAD, Boilers, Furnaces & Process Heating Equipment, with a secondary code of IMAHAKAC, Heat Exchangers & Thermal Transfer Equipment. Its NAICS code is 333414 and its SIC code is 3433.