Enardo

What Enardo does

Enardo is a Tulsa, Oklahoma-based brand operating within Emerson Electric Co.'s (NYSE: EMR) Final Control division, providing safety and environmental protection equipment for atmospheric and low-pressure storage tanks. The company was founded in 1993 and currently operates with a headcount of 51-100 employees. Its product portfolio centers on pressure vacuum relief valves (PVRVs) — Models 2000, 850, and 950 — that protect bulk storage tanks from over-pressure and vacuum damage while controlling evaporative losses and emissions.

The company's technology stack includes the ES-665 and ES-665-HF Thief Hatches with proprietary sealing technology for fugitive-emissions control, Detonation Flame Arrestors that address deflagration-to-detonation transition events in hydrocarbon service, and Smart Wireless Technology enabling remote valve monitoring on the PVRV product line. Engineering design support is delivered through Soft Calc II, a proprietary sizing software used by operators and EPCs to specify relief devices. The portfolio is engineered to meet EPA emissions standards, OSHA safety requirements, and industry codes including API 2000.

Enardo generates revenue through engineered-equipment sales, with pricing driven by valve size, pressure class, material selection, and application certification (e.g., hydrocarbon vs. chemical service). The go-to-market is entirely channel-mediated via Emerson's global enterprise sales, project, and service organization, which delivers the brand into oil & gas (upstream production, midstream gathering, refining, LNG), petrochemical, chemical, and bulk liquid terminal operators. No standalone direct-sales, distribution, or licensing operations exist outside the parent company's channel.

Name

Enardo

Legal name

Emerson Electric Co.

Website

http://www.enardo.com

Company type

Public

Founded year

1993

Operating status

Operating

Headcount range

51–100 employees

Short description

Enardo is an Emerson Electric brand providing engineered safety and emissions-control equipment — pressure vacuum relief valves, flame arrestors, and thief hatches — for atmospheric storage tanks serving oil & gas, refining, chemical, and LNG operators globally.

Ownership category

akta.pro rank

Product category

Industrial Tank Safety Equipment

NAICS

Oil and Gas Field Machinery and Equipment Manufacturing (333132), Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513), Fluid Power Valve and Hose Fitting Manufacturing (332912)

SIC

Oil & Gas Field Machinery & Equipment (3533)

akta.pro primary industry

Process Safety & Relief Systems (Flare Systems, PRVs, Explosion Protection) (IMAHAEAL)

Keywords

• Pressure vacuum relief valves
• Flame arrestor equipment
• Tank safety solutions
• Storage tank protection
• Industrial pressure management

Headquarters

HQ city

Tulsa

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Industrial Safety Equipment Sales: Sale of pressure vacuum relief valves, flame arrestors, tank hatches, and related tank safety equipment to oil & gas and process industry customers. Products are sold as standalone equipment with potential for replacement parts and service contracts.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Enardo designs, manufactures, and sells industrial safety and environmental control equipment for storage tanks used in oil & gas, petrochemical, wastewater, refining, and other process industries. Its core product lines include pressure vacuum relief valves, detonation flame arrestors, and tank hatches that protect life, equipment, and the environment while helping customers meet tightening emissions regulations. The company also offers the Soft Calc II sizing software as a downloadable engineering tool.

Product overview

Enardo, an Emerson brand, provides advanced safety and environmental solutions for storage tanks used in oil & gas and process industries. The product portfolio centers on tank pressure and flame protection equipment including pressure vacuum relief valves (Model 2000, Models 850/950 with Smart Wireless Technology), tank hatches (ES-665 Thief Hatch, ES-665-HF Hatch), and detonation flame arrestors. Enardo also offers a software tool (Soft Calc II) for sizing these safety devices. The products are designed to protect life, equipment, and the environment while helping industries meet emissions regulations.

Differentiator

Problem solved

Functional benefit

Products and services

• Enardo Model 2000 with Smart Wireless Technology Pressure vacuum relief valve with integrated smart wireless technology for monitoring and control in storage tank applications. Designed for oil & gas and process industry operators needing overpressure/underpressure protection with remote status visibility.
• Enardo Models 850 and 950 with Smart Wireless Technology Pressure vacuum relief valves featuring smart wireless technology for enhanced monitoring capabilities in tank storage applications. Used by oil & gas and process industry operators for storage tank pressure management.
• Enardo ES-665 Thief Hatch Thief hatch valve for tank access and pressure management with sealing technology, used in storage tank applications for product sampling and emission control.
• Enardo Detonation Flame Arrestors Detonation flame arrestors designed to prevent flame propagation and protect equipment and personnel in industrial applications, including storage tank and process piping systems.
• Enardo ES-665-HF Hatch Advanced tank hatch featuring sealing technology that significantly reduces vapor emissions and product loss, part of Enardo's tank protection portfolio for process industry storage tanks.
• Enardo Soft Calc II Sizing software for flame arrestors, pressure vacuum relief valves, and tank hatches to ensure proper equipment selection. Distributed as a downloadable tool from Enardo for engineers and specifiers.

Quantifiable outcome

• Sealing technology significantly reduces vapor emissions and product loss

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Shand & Jurs: Specialty manufacturer of pressure/vacuum relief vents, flame arrestors, and tank gauging equipment for petroleum and chemical storage—direct peer in tank safety hardware.
• Anderson Greenwood: Also an Emerson Final Control brand, Anderson Greenwood manufactures pressure relief valves and process safety instrumentation for O&G and process industries—directly overlapping with Enardo's pressure vacuum relief and tank safety portfolio.
• Crosby (Emerson): Emerson Final Control brand specializing in pressure relief valves and rupture disc devices; competes head-to-head with Enardo in O&G, refining, and petrochemical tank safety applications.
• BS&B Safety Systems: Independent manufacturer of rupture discs, explosion protection panels, and flame arrestors serving O&G, chemical, and process industries; direct competitor to Enardo's flame arrestor and pressure relief product lines.
• Protectoseal: Manufacturer of tank hatches, pressure/vacuum relief valves, flame arrestors, and tank vents—directly competing with Enardo's core tank-safety portfolio in flammable liquid storage applications.
• Groth Corporation: Manufacturer of pressure/vacuum relief valves, flame arrestors, and tank blanketing equipment for storage tanks in O&G and chemical processing—head-to-head overlap with Enardo's flagship offerings.

Emerging players

• Fike Corporation: Provider of explosion protection, pressure relief, and flame detection solutions serving process industries; overlaps with Enardo in detonation flame arrestor and process safety equipment segments.
• Elmac Technologies: UK-based manufacturer of flame arrestors and tank protection equipment for oil & gas, chemical, and marine applications—emerging competitor in the flame arrestor category where Enardo also competes.

Broad incumbents

• Pentair: Global diversified industrial company with process technologies including valves and tank safety products; broader portfolio but overlapping in pressure/vacuum relief and storage tank equipment through legacy brands like Shand & Jurs.
• Emerson Electric (Final Control division): Enardo's parent division; provides broader portfolio of control valves, regulators, and instrumentation, plus the global sales/service infrastructure that Enardo leverages. Best framing as the broad incumbent that owns Enardo and several direct peer brands.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks2 records

Key highlights6 records

Customer concentration

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• LinkedInlinkedin.com/company/enardo-llc

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 Enardo