Cornerstone Valve
Cornerstone Valve is a U.S. engineered-to-order manufacturer of metal-seated, trunnion-mounted ball valves for severe-service applications in oil & gas, petrochemical, power generation, aerospace, defense, and mining, headquartered in Missouri City, Texas.
- Company typePrivate
- Founded1990
- HeadquartersMissouri City, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Cornerstone Valve does
Cornerstone Valve is a U.S.-based engineered-to-order (ETO) manufacturer of metal-seated, trunnion-mounted ball valves designed for severe-service applications, headquartered in Missouri City, Texas, near the Gulf of Mexico. Founded in 1990 with initial orders from the United States Navy and aerospace customers, the company has built a 34-year installed base spanning oil & gas (topside, subsea, production, cryogenic), petrochemical & refining, power generation, aerospace, U.S. defense, mining & pulp, and wastewater verticals. Its product portfolio includes the core ball valve line rated up to API 6A 15000#, the Gen 2 TE4 Series for power generation, cryogenic ball valves for LNG service, metal-seated switching valves engineered for 3.2 million cycles between refurbishments, and subsea ball valves; the company also retains the EII Valve brand acquired in 2011. Cornerstone holds API 6A, API 6D, API 6DSS, API Spec Q1, and ISO 9001:2015 certifications, plus Women-Owned Small Business (WOSB) status enabling federal contracting access.
The company operates on a sales-led, quote-based go-to-market model, with valve specialists responding to requests within 1-2 business days. Pricing is fully custom to specification, with no public price list, and contracts are structured as multi-year arrangements including Market Support Agreements (MSAs) for spares, inventory cataloging, and field service across the installed base. Revenue is generated one-time per engineered valve order supplemented by aftermarket service revenue through the 2023-launched Asset Management division. Distribution combines direct sales to end users, engineers, and designers with a North American partnership and distribution network formalized in 2020. Manufacturing, engineering, assembly, and offices are co-located in Missouri City, TX, with a sales presence referenced in Stafford, TX. The company is privately held with no disclosed funding rounds, parent company, or investor backing.
Cornerstone Valve firmographics
Firmographics- Name
- Cornerstone Valve
- Legal name
- Cornerstone Valve
- Website
- https://cornerstonevalve.com
- Company type
- Private
- Founded year
- 1990
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Cornerstone Valve is a U.S. engineered-to-order manufacturer of metal-seated, trunnion-mounted ball valves for severe-service applications in oil & gas, petrochemical, power generation, aerospace, defense, and mining, headquartered in Missouri City, Texas.
- Ownership category
- akta.pro rank
Cornerstone Valve industry classification
Industry- Product category
- Industrial Valves
- NAICS
- Metal Valve Manufacturing (33291), Industrial Valve Manufacturing (332911)
- SIC
- Oil & Gas Field Machinery & Equipment (3533)
- akta.pro primary industry
- Seals, Valves & Auxiliary Components (for Pumps/Compressors) (IMAHANAH)
Keywords
Where Cornerstone Valve is headquartered
LocationHeadquarters
- HQ city
- Missouri City
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Cornerstone Valve business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Operations, Supply Chain, Personnel, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Custom Engineered Ball Valves: Cornerstone Valve generates revenue through the design and manufacturing of custom-engineered ball valves for severe-service applications. As an ETO (Engineered to Order) manufacturer, each valve is built to customer specifications. The company also offers aftermarket support services including MSA (Market Support Agreements) for spares, inventory cataloging, and field service for their 34-year installed base.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom Engineered-to-Order Valves |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels3 records
Cornerstone Valve product offering
Product offeringCore offering
Cornerstone Valve is an engineered-to-order (ETO) manufacturer of metal-seated, trunnion-mounted ball valves designed for severe-service applications across oil & gas, petrochemical, power generation, aerospace, defense, mining, and wastewater industries. Each valve is custom-engineered to customer specifications, with pressure ratings up to API 6A – 15000# and zero-leakage performance in high-pressure, high-temperature, and abrasive environments. The company also delivers aftermarket support through MSA agreements covering spares, inventory cataloging, and field service for its 34-year installed base.
Product overview
Cornerstone Valve is an Engineered-to-Order (ETO) manufacturer specializing in metal-seated, trunnion-mounted ball valves designed for severe-service applications. The product portfolio centers on the core Ball Valves product line, supporting pressures up to API 6A – 15000#, complemented by specialized offerings including the Gen 2 TE4 Series (Power Generation focus), Cryogenic Ball Valves (LNG applications), Metal Seated Switching Valves (high-temperature service), and Subsea Ball Valves (offshore oil & gas). The company also retains the acquired EII Valve brand. All products are designed, manufactured, and assembled at the company's facility near Houston, Texas, with a focus on engineered solutions for demanding environments.
Differentiator
Problem solved
Functional benefit
Products and services
- Metal-Seated Ball Valves Metal-seated, trunnion-mounted ball valves engineered for severe-service applications, delivering bubble-tight leakage performance in high-pressure (up to API 6A – 15000#), high-temperature, and abrasive operating environments. Sold to distributors, end users, engineers, and designers in oil & gas, petrochemical, power generation, aerospace, defense, mining, and wastewater industries.
- Gen 2 TE4 Series Second-generation ball valve series engineered for the Power Generation industry, providing reliable isolation performance and durability in demanding power plant environments. Launched in 2021.
- Cryogenic Ball Valves Ball valves designed for LNG and cryogenic applications, featuring in-house cryogenic testing capabilities developed in 2016 for low temperature service requirements.
- Metal-Seated Switching Valves Specialized metal-seated switching valves introduced in 1998 for high-temperature polypropylene service, engineered to endure 3.2 million cycles between refurbishments/replacements in petrochemical and chemical processing applications.
- Subsea Ball Valves Ball valves designed for subsea oil and gas applications, meeting API 6DSS (Subsea Slave) certification requirements for offshore pipeline service.
- EII Valve Acquired Houston-based valve manufacturer brand, integrated into Cornerstone's portfolio as a wholly-owned subsidiary. Expanded Cornerstone's manufacturing capabilities and product offerings following the 2011 acquisition.
- MSA Aftermarket Support Service Market Support Agreement (MSA) aftermarket support service covering spares supply, inventory cataloging, and field service for Cornerstone's 34-year installed base of severe-service valves.
Quantifiable outcome
- 3.2 million cycles between refurbishments/replacements for high temperature polypropylene service valves
- +2 more outcomes
Companies that use Cornerstone Valve
Customer profileNamed customers3 records
Segments7 records
Ideal customer profiles3 records
Cornerstone Valve technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Cornerstone Valve partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- EII ValvecoreCornerstone Valve acquired EII Valve, a Houston-based valve manufacturer, in 2011. This strategic acquisition expanded Cornerstone's manufacturing capabilities and product portfolio, strengthening their position in the valve manufacturing market.
Scale indicators4 records
Recent moves7 records
Expansion highlights5 records
Cornerstone Valve competitors and assessment
Company assessmentBroad incumbents
- Flowserve Corporation: Global industrial valve and pump manufacturer with a broad severe-service valve portfolio serving oil & gas, power, and chemical end markets — a much larger incumbent competing in many of the same applications as Cornerstone.
- Crane Co. (Crane ChemPharma & Energy): Diversified industrial manufacturer with a strong severe-service valve portfolio targeting oil & gas, chemical, and power applications. Competes with Cornerstone in engineered ball and check valves.
- Cameron (SLB / Schlumberger): Major oilfield equipment and valve manufacturer (now part of SLB) with strong API 6A and subsea valve offerings — a dominant incumbent in the upstream and subsea markets Cornerstone serves.
- Emerson (Valves & Controls): Diversified industrial conglomerate with significant presence in severe-service control valves and isolation valves for oil & gas and process industries — a broad incumbent overlapping with Cornerstone's customer base.
- Pentair Valves & Controls: Industrial valve manufacturer serving oil & gas, chemical, and power industries with a portfolio that includes severe-service ball valves — broader portfolio but overlapping application set.
Others
- WKM (part of Flowserve): Historic severe-service ball valve brand serving oil & gas production and pipeline applications; comparable on product technology (metal-seated, trunnion-mounted ball valves) though now embedded within Flowserve's portfolio.
Direct peers
- Mogas Industries: Houston-based manufacturer of severe-service ball valves for power, oil & gas, petrochemical, and mining. Compares closely on ETO custom-engineered isolation valves serving similar high-pressure, high-temperature applications.
- Bonney Forge: Manufacturer of forged steel valves including ball and check valves for oil & gas, refinery, and power generation. Comparable on engineered valve offerings for severe-service industrial applications.
- KVT (König & Vision Valve Technology): Severe-service ball valve specialist serving oil & gas, petrochemical, and power markets with metal-seated and soft-seated designs. Highly comparable on product technology and customer base.
- Velan Inc. Canadian-headquartered severe-service valve manufacturer producing metal-seated ball valves for oil & gas, petrochemical, power, and cryogenic applications — directly overlapping with Cornerstone's severe-service ball valve niche and end markets.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
Cornerstone Valve compliance and trust
Trust signalCompliance6 records
Cornerstone Valve financial estimates
Financial estimateRevenue estimate
Valuation estimate
Cornerstone Valve leadership team
Management profileNumber of profiles
Profiles1 record
Cornerstone Valve subsidiaries and ownership
Company hierarchySubsidiaries1 record
Cornerstone Valve funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Cornerstone Valve 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 Cornerstone Valve
What does Cornerstone Valve do?
Cornerstone Valve is an engineered-to-order (ETO) manufacturer of metal-seated, trunnion-mounted ball valves designed for severe-service applications across oil & gas, petrochemical, power generation, aerospace, defense, mining, and wastewater industries. Each valve is custom-engineered to customer specifications, with pressure ratings up to API 6A – 15000# and zero-leakage performance in high-pressure, high-temperature, and abrasive environments. The company also delivers aftermarket support through MSA agreements covering spares, inventory cataloging, and field service for its 34-year installed base.
Is Cornerstone Valve a public or private company?
Cornerstone Valve is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Cornerstone Valve founded?
Cornerstone Valve was founded in 1990. It employs 11 to 50 people.
Where is Cornerstone Valve based?
Cornerstone Valve is headquartered in Missouri City, United States, in the North America region.
How does Cornerstone Valve make money?
One revenue line is on record: custom Engineered Ball Valves.
Who are Cornerstone Valve's main competitors?
Broad incumbents on record are Flowserve Corporation, Crane Co. (Crane ChemPharma & Energy), Cameron (SLB / Schlumberger), Emerson (Valves & Controls) and Pentair Valves & Controls. WKM (part of Flowserve) is listed as an others. Direct peers are Mogas Industries, Bonney Forge, KVT (König & Vision Valve Technology) and Velan Inc..
Does Cornerstone Valve have an API?
No public API is recorded for Cornerstone Valve.
What industry is Cornerstone Valve in?
Cornerstone Valve's product category is Industrial Valves. Its primary akta.pro industry code is IMAHANAH, Seals, Valves & Auxiliary Components (for Pumps/Compressors). Its NAICS code is 33291 and its SIC code is 3533.