Thermo-Probes

What Thermo-Probes does

Thermo/Probes Inc. is a privately held, Houston-based custom manufacturer of industrial temperature measurement devices, founded in 1980 and operating alongside its subsidiary Alloy Engineering LLC under the TPI/AEC brand. The company designs and builds thermocouples, resistance temperature detectors (RTDs), thermowells, pre-configured sensor assemblies, head and DIN-rail mounted transmitters, dial thermometers and pressure gauges, holders, and crimping tools, with hazardous-area certifications (ATEX, FM, CSA, IECEX) and SIL2-rated transmitters supporting output protocols including 4-20 mA, 0-10 V, Hart, PROFIBUS-PA, and near-field communication. Its wholly owned subsidiary HTX Manufacturing LLC extends the portfolio into filter canisters and filter housings with internal relief valves for agricultural, food and beverage, water treatment, power generation, and petrochemical filtration.

The business is run as a sales-led B2B operation from a single Houston headquarters at 55 Lyerly St. #214, with direct phone lines, a secure contact form, and a published product policy governing returns, RMAs, cancellations, and a one-year manufacturer's warranty. Revenue is generated primarily through engineered-to-order custom manufacturing on a quote basis, complemented by an in-stock catalog of cuttable Pt100 sensors, thermowells, and dial thermometers priced from roughly $47 to $830 per unit, plus replacement-part and warranty services. Customer acquisition is direct with no disclosed channel partners, and the company targets a vertical segmentation across motor repair (primary), oil and gas, petrochemical, aerospace, medical, forge and heat treating, pulp and paper, and municipal and wastewater segments, all served within the United States.

The product economics rest on configurability and certifications: customers specify probe length, element type, sheath material (304SS or 316SS), connection style (threaded or flanged), and output protocol, and the company delivers to those specifications. The motor repair heritage since 1980 anchors the brand, while the HTX filter housing line and the broader transmitter program represent the most recent product extensions. No external investors, parent company, or venture funding is disclosed, and no revenue figures are publicly reported.

Name

Thermo-Probes

Legal name

Thermo/Probes Inc.

Website

https://thermo-probes.com

Company type

Private

Founded year

1980

Operating status

Operating

Headcount range

11–50 employees

Short description

Thermo/Probes Inc. is a privately held Houston-based custom manufacturer of industrial temperature sensors, including thermocouples, RTDs, thermowells, and certified transmitters, serving motor repair, oil and gas, petrochemical, aerospace, medical, and process-industry B2B customers since 1980.

Ownership category

akta.pro rank

Product category

Industrial Temperature Sensors

NAICS

Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Other Measuring and Controlling Device Manufacturing (334519)

SIC

Refrigeration & Service Industry Machinery (3580), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Refrigeration Components & Controls (Compressors, Valves, Sensors) (IMAHAKAH)

Keywords

• Industrial temperature sensors
• Custom thermocouples
• RTD manufacturing
• Thermowells fabrication
• Process instrumentation

Headquarters

HQ city

Houston

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Others, Marketing or Sales

Revenue model

1. Custom Temperature Sensor Manufacturing: Custom-manufactured temperature sensors made to customer specifications. Products include thermocouples, RTDs, thermowells, and assemblies for industrial applications.
2. In-Stock Standard Products: Pre-manufactured temperature sensors and measurement devices available for immediate purchase including thermometers ($204-$311), thermowells ($47-$830), and cuttable sensors ($200-$238)
3. HTX Filter Canisters: Filter canisters and housings for industrial filtration applications including agriculture, food & beverage, water treatment, and petrochemical sectors
4. Replacement Parts and Warranty Services: Product replacement and warranty services with 1-year manufacturer's warranty covering products in service only

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Thermo/Probes Inc. custom-manufactures temperature sensors and machined measurement products — thermocouples, RTDs, thermowells, sensor assemblies, head and DIN-rail mounted transmitters, dial thermometers, pressure gauges, and (via HTX Manufacturing LLC) filter housings — for industrial B2B customers in oil & gas, petrochemical, aerospace, motor repair, medical, forge & heat treating, pulp & paper, and municipal/wastewater sectors. The company pairs made-to-specification manufacturing with an in-stock program of pre-made cuttable sensors and thermowells and supports every order with a 1-year manufacturer's warranty.

Product overview

Thermo/Probes Inc. is a custom-manufactured temperature sensor manufacturer serving multiple industries since 1980. The product portfolio centers on temperature measurement solutions including Thermocouples, RTDs, Thermowells, and Assemblies as core products. Supporting offerings include Thermometers & Pressure Gauges, Transmitters (head and DIN-rail mounted), Crimping Tools, Filter Housings, and Holders. The company operates an in-stock program featuring pre-made Cuttable Sensors and Thermowells alongside their custom manufacturing services. Products are distributed across industries including oil & gas, petrochemical, aerospace, medical, motor repair, and municipal/wastewater applications.

Differentiator

Problem solved

Functional benefit

Brands

• TPI/AEC: Combined brand reference for Thermo/Probes Inc. and Alloy Engineering LLC used in product policy documentation

Segments7 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• HTX Manufacturing LLCcoreOEM/ Whitelabel/ Licensing PartnerHTX Manufacturing LLC is now part of the Thermo/Probes Inc. team. HTX brings filter canister manufacturing capabilities to Thermo/Probes, expanding the product portfolio to include filter housings for agriculture, food & beverage, water treatment, power generation, and petrochemical applications. HTX offers unique filter housing designs with internal relief valves that minimize corrosion and reduce clogging.

Scale indicators2 records

Recent moves4 records

Expansion highlights4 records

Broad incumbents

• Endress+Hauser: Endress+Hauser manufactures process instrumentation including RTDs, thermocouples, and transmitters for industrial process industries. It overlaps directly with Thermo-Probes' temperature sensor/transmitter offering but serves customers globally and across many additional measurement categories.
• WIKA Instrument: WIKA is a global manufacturer of measurement instrumentation including thermocouples, RTDs, thermowells, and pressure gauges. It is comparable to Thermo-Probes in core product category (industrial temperature sensing) but operates at much greater scale with a worldwide footprint and broader portfolio.
• Watlow: Watlow manufactures thermal sensors, heaters, and temperature/control solutions for industrial applications including process heating and motor windings. Comparable to Thermo-Probes in temperature sensing products but with a broader portfolio including heaters and controllers.
• Emerson (Rosemount): Emerson's Rosemount line includes temperature transmitters and sensors used in process industries. It overlaps with Thermo-Probes' transmitter and sensor offerings but is part of a much larger automation portfolio serving global industrial customers.

Direct peers

• JMS Southeast: JMS Southeast is a US-based distributor and assembler of temperature sensors, RTDs, thermocouples, and thermowells for industrial process and motor applications. Comparable to Thermo-Probes in product offering and customer base, particularly in motor repair and process industries.
• Minco Products: Minco designs and manufactures RTDs, thermocouples, and custom temperature sensing assemblies for industrial, aerospace, and medical applications. Comparable to Thermo-Probes in custom-engineered sensor assemblies and multi-industry customer base.
• Omega Engineering: Omega Engineering offers a broad catalog of thermocouples, RTDs, thermowells, transmitters, and process instrumentation for industrial and lab applications. It is closely comparable to Thermo-Probes in product mix (temperature sensors, thermowells, transmitters) and B2B industrial customer base, with both serving in-stock and custom orders.
• Burns Engineering: Burns Engineering manufactures precision RTDs, thermocouples, and thermowells for industrial and OEM applications. It is comparable to Thermo-Probes as a niche custom manufacturer of high-accuracy temperature sensors serving similar industrial verticals.
• Pyromation: Pyromation designs and manufactures temperature sensors (thermocouples, RTDs, thermowells) and assemblies for industrial process applications including motor repair. It directly competes with Thermo-Probes in the same niche of custom-manufactured industrial temperature measurement solutions.

Emerging players

• AutomationDirect: AutomationDirect supplies industrial sensors including RTDs and thermocouples at lower price points through catalog/e-commerce channels. Comparable to Thermo-Probes' in-stock program but competes primarily on price rather than custom engineering.

Market position

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

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 Thermo-Probes