What Prescor does

Prescor Inc. is a Tulsa, Oklahoma-based manufacturer of precision-engineered, hot-formed pressure vessel tank heads serving North American industrial customers. Founded in 1969 by John W. Trepp, Sr., the company has operated continuously for over 50 years and was integrated into The Conrex Group of Companies in 2018. The company reports 101-250 employees and operates from a single manufacturing facility at 8601 State Highway 66 in Tulsa.

The company's core technology is open-die hot-forming: steel discs are heated above 1650°F and shaped with hydraulic presses into seamless tank heads up to 8 feet in diameter and thicknesses ranging from 1/4 inch to 6 inches. Head types include ASME 2:1 elliptical heads, hemispherical heads, flanged-and-dished, flanged-only, dished-only, and weld caps, produced in carbon steel, stainless steel, chrome alloys, and other ferrous and non-ferrous metals. The operation is qualified to multiple ASME code sections (UG-77, UG-79, UG-81, UCS-79, UCS-85, UHA-44, UNF-79) covering traceability, forming, tolerances, and thermal treatment, enabling service to code-critical applications.

Revenue is generated through custom, quote-based hardware sales of tank heads to enterprise customers across nine verticals — Oil & Gas as primary, plus Pulp & Paper, Plastics, Military, Rail Car, Tank Trucks, Nuclear, Aerospace, and Food Processing. The go-to-market is direct enterprise field sales organized by territory across the USA (Tulsa, Southeast, New York) and Canada, supplemented by a website quote-request form. In 2024, the company introduced a 5-day expedited shipping service for select customized elliptical heads. Pricing is opaque and determined per RFQ based on product type, dimensions, material, and finishing requirements. Top-three customers have been with the company for over 40 years each.

Name

Prescor

Legal name

Prescor Inc.

Website

https://prescor.com

Company type

Private

Founded year

1969

Operating status

Operating

Headcount range

101–250 employees

Short description

Prescor Inc. is a Tulsa, Oklahoma-based manufacturer of hot-formed, ASME-certified pressure vessel tank heads — including elliptical, hemispherical, flanged and dished, dished only, flanged only, and weld cap designs — sold via direct field sales to enterprise customers across nine North American verticals, with oil and gas as primary.

Ownership category

akta.pro rank

Product category

Pressure Vessel Tank Head Manufacturing

NAICS

All Other Miscellaneous General Purpose Machinery Manufacturing (333998)

SIC

Special Industry Machinery, Nec (3559), Special Industry Machinery (No Metalworking Machinery) (3550)

akta.pro primary industry

Pressure Vessels, Columns & Storage Tanks (ASME/Process Vessels) (IMAHAEAF)

Keywords

• Pressure vessel heads
• Hot-formed tank heads
• ASME-certified manufacturing
• Elliptical tank heads
• Hemispherical pressure heads

Headquarters

HQ city

Tulsa

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Pressure Vessel Tank Head Sales: Prescor generates revenue through the manufacture and sale of custom pressure vessel tank heads. Products include elliptical heads, hemispherical heads, flanged and dished heads, dished only heads, flanged only heads, and weld caps. Pricing is quote-based as all products are custom-manufactured to customer specifications.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

Prescor manufactures precision-engineered, hot-formed seamless pressure vessel and tank heads at its Tulsa, Oklahoma facility. The product line centers on ASME 2:1 elliptical heads and hemispherical heads, supplemented by flanged and dished, flanged only, dished only, and weld on caps, with a newly launched 5-day expedited shipping service for select elliptical heads.

Product overview

Prescor is a manufacturer of precision-engineered hot-formed pressure vessel and tank heads, operating as part of The Conrex Group of Companies. The product portfolio centers on ASME-certified tank heads including Elliptical Tank Heads (the primary product with 2:1 ratio for medium pressure applications), Hemispherical Tank Heads (for high pressure environments), and various other head types (Flanged and Dished, Flanged Only, Dished Only, and Weld On Caps). The company recently introduced a 5-Day Shipping service for select elliptical heads. All products are open-die hot-formed, seamless, and manufactured in North America at the Tulsa, Oklahoma facility.

Differentiator

Problem solved

Functional benefit

Products and services

• Elliptical Tank Heads ASME 2:1 elliptical tank heads hot-formed from carbon steel, stainless steel, and other ferrous and non-ferrous alloys, suited for medium pressure tanks and unfired pressure vessels such as LPG and air receivers. The category now includes a 5-day expedited shipping option for select customized configurations.
• Hemispherical Tank Heads Seamless ASME hemispherical tank heads ranging from 6-5/8 inch OD to 60 inch ID, engineered for higher pressure vessel environments where ASME code calculations allow reduced minimum thickness compared to elliptical heads.
• Flanged and Dished Heads Flanged and dished tank heads manufactured in various sizes, available with square trim or beveled edges for welding applications.
• Flanged Only Heads Flanged-only tank heads produced using available tooling and supplied with square trim or bevel for welding in customer fabrication processes.
• Dished Only Heads Dished-only tank heads delivered oversized and untrimmed, a standard product in Prescor's manufacturing lineup for further customer processing.
• Weld On Caps Weld caps manufactured from 6 inch NPS and larger in standard wall and heavier weights up to 48 inch NPS, with XHVY wall and heavier available up to 60 inch NPS, in carbon, stainless, and chrome alloys.

Segments9 records

Ideal customer profiles1 record

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.

• The Conrex Group of CompaniescoreStrategic or Co-development PartnerPrescor is part of The Conrex Group of Companies, which also includes Conrex Steel and Formweld Fitting. The Conrex Group is described as a world leader in providing high quality formed heads for tanks and vessels. The group combines Prescor's tank head expertise with Conrex Steel's vessel capabilities and Formweld Fitting's fitting products.

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Matrix Service Company: Larger publicly-listed engineering and construction firm building storage tanks and pressure vessels for oil & gas, terminals, and industrial markets. Operates in the same downstream demand pool but at much greater scale and with EPC breadth.
• Tank Connection: Designer and manufacturer of bolted and welded storage tanks with precision-controlled manufacturing operations. Comparable in serving industrial process customers with engineered tank solutions.
• CB&I (Chicago Bridge & Iron): Global leader in design and construction of large-scale storage tanks and pressure vessels for oil & gas, petrochemical, and water infrastructure. Operates in the same ASME pressure vessel space as Prescor but at vastly greater scale and project scope.
• Mueller Industries: Large diversified manufacturer of copper, brass, aluminum, and steel products including industrial tubing and pressure-related components. Comparable in metal forming capabilities and industrial OEM customer base, though much broader in scope.
• Caldwell Tanks: Established North American manufacturer of elevated and ground storage tanks with in-house ASME code capabilities. Comparable ASME-certified manufacturing base serving municipal, industrial, and process customers.

Direct peers

• Fisher Tank Company: Industrial tank and pressure vessel manufacturer serving chemical, petroleum, and process industries with custom fabricated ASME vessels. Direct competitor in the medium-pressure custom vessel head market.
• Pittsburgh Tank & Tower: Manufacturer of welded steel tanks and pressure vessel components serving industrial, petrochemical, and water markets. Comparable in serving ASME-certified vessel applications with custom fabrication model.
• Formweld Fitting: Sister company within The Conrex Group producing fittings and complementary formed components for tanks and vessels. Closely comparable product family, shared customer base, and bundled sales opportunities with Prescor.
• Conrex Steel: Sister company within The Conrex Group, manufacturing pressure vessels and related formed components. Operates in the same Tulsa industrial cluster with overlapping customer base and shared ASME certifications, making it the closest direct peer.
• Bison Steel: Midwestern manufacturer specializing in custom hot-formed tank heads and pressure vessel components, directly competing with Prescor in ASME-certified elliptical and hemispherical head production for industrial OEMs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/prescor-llc
• Xx.com/PRESCORLLC

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

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 Prescor