Stewarts-USA

What Stewarts-USA does

Stewarts-USA, LLC is a Houston, Texas-based designer and manufacturer of industrial pressure and temperature instrumentation, operating as the North and South American distribution and marketing arm of the Stewart-Buchanan Group, which has been in continuous operation since 1870. Founded in 2003, the company produces pressure gauges (including the trademarked Vibragauge vibration-dampening line, Snubbagauge hybrid, Safety Zone Reflective Glow Gauge, chemical seal/diaphragm gauges, differential pressure gauges, caisson gauges, and heavy duty gauges), bi-metal thermometers, subsea pressure instruments rated to 20,000 ft (6,000 m) depth, and needle valves and manifolds. The company holds ISO 9001:2015 certification, is PED 97/23/EC compliant for CE marking, and manufactures 98% of all components in-house.

The company's underlying technology centers on precision mechanical measurement, including Bourdon tube elements, diaphragm seals, mechanical dampening linkages, and 100% filled-case subsea pressure compensation systems. Trademarked proprietary features include Vibragauge (mechanical vibration dampening eliminating the need for glycerine filling), Safety Zone Reflective Glow Gauge (retro-reflective safe-zone indicators visible up to 150 feet), Aegis-Guard (acrylic ROV protection cover), and Snubbagauge (gauge-piston snubber hybrid). Customization is a core capability, with on-site custom dial printing, dual/tri scales, special thread types, and contact gauge configurations offered alongside the catalog.

Stewarts-USA operates a direct-to-customer B2B model with phone, FAX, email, and online quote-request order capture, shipping F.O.B. Houston via UPS worldwide with same-day fulfillment for in-stock SKUs and a $75 minimum order. Quote-based pricing with NET 30 terms serves established accounts, and the customer base spans industrial manufacturing, oil & gas (including subsea), aerospace & defense, water/wastewater, civil engineering, biotech/pharmaceutical, mining/metals, and valves/manifolds OEM segments. With 11-50 employees, no external funding rounds, and no disclosed M&A, the entity functions as a privately-held specialty instrumentation subsidiary within the larger Stewart-Buchanan Group.

Name

Stewarts-USA

Legal name

Stewarts-USA, LLC

Website

https://stewartsusa.com

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

11–50 employees

Short description

Stewarts-USA, LLC is a Houston-based manufacturer of precision pressure gauges, temperature instruments, needle valves, and subsea pressure monitoring products, serving industrial manufacturing, oil and gas, aerospace, and construction customers across the Americas as the regional arm of the Stewart-Buchanan Group.

Ownership category

akta.pro rank

Product category

Industrial Instrumentation

NAICS

Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513), Fluid Power Valve and Hose Fitting Manufacturing (332912)

SIC

General Industrial Machinery & Equipment (3560)

akta.pro primary industry

Seals, Valves & Auxiliary Components (for Pumps/Compressors) (IMAHANAH)

akta.pro secondary industry

Piping, Valves & Pumps (Deck/Service Systems Components) (IMAJAIAI)

Keywords

• Pressure gauges
• Temperature instruments
• Subsea instrumentation
• Needle valves
• Industrial measurement

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

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

Revenue model

1. Industrial Instrumentation Products: Direct sales of precision pressure gauges, temperature products, valves, manifolds, and accessories to industrial customers. Products are offered as standard catalog items with customization options and custom orders.
2. Custom Gauge Configurations: Custom dial printing, special thread configurations, contact gauges, LED light activation, and bespoke gauge configurations tailored to customer specifications.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Stewarts-USA, LLC designs, manufactures, and distributes industrial pressure gauges, temperature gauges, needle valves, ball valves, and manifolds for industrial and process applications. The company operates as the North and South American distribution and marketing arm of Stewart-Buchanan Gauges, Ltd., producing 98% of components in-house and offering specialized subsea, chemical-seal, and vibration-dampening instrument variants.

Product overview

Stewarts-USA is a manufacturer of industrial instrumentation and pressure measurement products, offering a comprehensive portfolio centered around pressure gauges, temperature products, valves, and manifolds. The core product line includes standard Pressure Gauges along with specialized variants such as Vibragauge® (vibration-dampening), Snubbagauge® (piston snubber hybrid), Safety Zone Reflective Glow Gauge® (visual safety indicator), and Chemical Seal Pressure Gauges for corrosive applications. The company also produces Differential Pressure Gauges, Caisson Gauges, and Heavy Duty Gauges in various sizes. Subsea Products are offered in both Compensated (8000 Series) and Non-Compensated (5000 Series) variants for underwater applications up to 20,000 ft depth. Temperature Products include bi-metal thermometers, and Valves & Manifolds cover needle valves and 2/3/5-valve configurations. Custom Dials & Gauges and Accessories (Pointer Options, Arc Label Zone Tape) round out the portfolio. All products are manufactured in-house (98% of components), and the company holds ISO 9001:2015 certification.

Differentiator

Problem solved

Functional benefit

Brands

• Vibragauge®: Pressure gauge designed to dampen vibration and pulsation without liquid filling, extending instrument life and providing cost savings as an alternative to glycerine-filled instruments.
• Snubbagauge®
• Safety Zone Reflective Glow Gauge®

Products and services

• Pressure Gauges Main product category of industrial pressure gauges manufactured with 98% in-house components for use in hydraulic systems, fluid power, pressure vessels, and process monitoring.
• Vibragauge® Trademarked pressure gauge with proprietary mechanical linkage that dampens pointer spindle fluctuations from vibration, pulsation, and pressure surge, extending instrument life without glycerine filling.
• Snubbagauge® Trademarked gauge and piston snubber hybrid product combining pressure gauge and snubber functionality for use in demanding pulsating pressure applications.
• Safety Zone Reflective Glow Gauge® Visual safety gauge with retro-reflective and glow-in-the-dark dial technology, allowing operators to identify safe operating zones from up to 150 feet away in low-light conditions.
• Temperature Products (Bi-Metal Thermometers) All-welded stainless steel bi-metal thermometers with hermetically sealed construction, ±1% full span accuracy, NPT and BSP connections, and stem lengths up to 120 inches.
• Subsea Products - Compensated (8000 Series) Subsea pressure gauges with 100% filled case and ambient-pressure compensation device, welded stainless steel diaphragm, and optional Aegis-Guard acrylic protection for ROV and subsea construction use.
• Subsea Products - Non-Compensated (5000 Series) Non-compensated subsea pressure gauges sealed to withstand ambient pressure at depths up to 10,000 ft (3,000 m), with Ultra-Deep variant rated to 20,000 ft / 6,000 m.
• Valves & Manifolds Precision-engineered needle valves and 2, 3, and 5-valve manifolds in Direct and Remote Mount styles, with full 316/316L stainless steel construction compliant with ISO 15156/NACE MR-01-75 and high-pressure options up to 30,000 psi.
• Custom Dials & Gauges Custom gauge and dial configuration service offering company logos, dual/tri-scales, false reading dials, suppressed/retard scales, special thread types, contact gauges, and LED light activation.
• Differential Pressure Gauges Dual inlet port gauges that mechanically perform subtraction of pressure between two volumes, available in 100 and 150 mm sizes with AISI 316 SS construction, IP66 rating, and 2% accuracy class with EN 837-1 S1 blowout protection.
• Caisson Gauges Self-contained sealed Bourdon tube gauges for civil engineering and caisson monitoring, available in 100 and 150 mm sizes with stainless steel construction, anti-parallax mirror band, and 1% full scale accuracy.
• Heavy Duty Gauges All stainless steel heavy duty pressure gauges in 2.5", 4", and 6" sizes, with dry or liquid fillable construction, optional Vibragauge dampening, IP66 rating, and operating temperatures from -4°F to 140°F.
• 2030 Series Chemical Seal Pressure Gauges Diaphragm seal pressure gauges designed to isolate the measuring system from corrosive, pasty, or dangerous fluids, available in 63, 100, and 150 mm sizes with 304 SS case and 316 SS socket/bourdon tube, weatherproof to IP66.
• Test Gauges & Process Gauges Precision pressure gauges designed for testing and process monitoring applications.

Quantifiable outcome

• Extended gauge life in high-vibration environments
• +2 more outcomes

Segments8 records

Ideal customer profiles4 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.

• Stewart-Buchanan Gauges, Ltd.coreStrategic or Co-development Partner · 1 January 2003Stewarts-USA, LLC was formed in 2003 as the North and South American distribution and marketing arm with Stewart-Buchanan Gauges, Ltd. The parent company has been in existence since 1870 and manufactures 98% of all components used in Stewarts-USA products.

Scale indicators4 records

Recent moves4 records

Expansion highlights4 records

Direct peers

• WIKA: WIKA is a global leader in pressure and temperature measurement instruments, offering pressure gauges, thermometers, and diaphragm seals that directly compete with Stewarts-USA's core catalog and subsea lines.
• Winters Instruments: Winters Instruments produces industrial pressure gauges, bimetal thermometers, and diaphragm seals — a directly comparable catalog-grade instrumentation manufacturer serving similar industrial customers.
• McDaniel Controls: McDaniel Controls is a regional pressure gauge and thermowell manufacturer in the U.S. Gulf Coast region, overlapping with Stewarts-USA on industrial process gauges and serving similar oil & gas and petrochemical customers.
• Barksdale (Crane Co.): Barksdale, part of Crane Co., produces pressure gauges, switches, and industrial instrumentation for harsh environments — directly comparable to Stewarts-USA's heavy-duty and vibration-resistant gauge offerings.
• NOSHOK: NOSHOK manufactures pressure gauges, needle valves, and manifolds for industrial applications — closely overlapping Stewarts-USA's gauge-plus-valve product mix and similar target verticals (oil & gas, hydraulics, process).
• Ashcroft (Dresser Utility Solutions / Mensor): Ashcroft is a long-established U.S. pressure and temperature instrument manufacturer with overlapping pressure gauges, diaphragm seals, and test gauges — directly comparable to Stewarts-USA in industrial and process markets.

Broad incumbents

• Omega Engineering: Omega Engineering is a broad-line industrial measurement and control catalog company supplying pressure gauges, thermometers, valves, and accessories — a much larger incumbent with overlapping catalog products to Stewarts-USA.
• Ametek (Measurement & Calibration): Ametek is a large diversified industrial electronics manufacturer with significant pressure gauge, calibration, and test instrument businesses, giving it overlapping presence in industrial process measurement alongside Stewarts-USA.

Regional players

• Klay Instruments: Klay Instruments is a Dutch manufacturer of industrial pressure and level instrumentation focused on the European process and water/wastewater markets — comparable in product scope but operating primarily in EMEA rather than North America.

Emerging players

• Pressure Tech: Pressure Tech is a U.K.-based specialist manufacturer of high-pressure gauges, needle valves, and manifolds for oil & gas, hydrogen, and subsea — closely comparable to Stewarts-USA's high-pressure and subsea gauge lines but smaller in scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/stewartsusa
• YouTubeyoutube.com/stewartsusa1
• LinkedInlinkedin.com/company/stewarts-usa-llc
• Instagraminstagram.com/stewarts.usa

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

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 Stewarts-USA