What Lone Star Sealing Technologies does

LoneStar Sealing Technologies is the specialist gasket, sealing, and fastener manufacturing arm of UK-based LoneStar Group, producing precision-engineered components for OEM clients across critical-process industries including oil and gas, petrochemicals, power generation, defense, civil nuclear, LNG, renewables, hydrogen/CCS/CCU, industrial, and infrastructure. Founded in 2003 and headquartered in Houston, Texas, the company manufactures API ring joint gaskets, proprietary wellhead gaskets, spiral wound gaskets, and raised and full-faced flange gaskets built from standard and exotic materials to perform in corrosive, high-pressure, and high-temperature environments. The business also supplies precision-engineered components and fasteners via a fully bespoke assembly service to customer specification.

The revenue model is anchored in B2B hardware sales of custom and standard gaskets, seals, and fasteners, complemented by a precision engineered components and assembly service. Ancillary revenue streams include a 24/7 Hotshot emergency supply service and specialist technical support, both of which generate professional-services revenue. Go-to-market is enterprise field sales direct to OEMs, with no public pricing disclosed — consistent with custom industrial procurement contracts and qualified-supplier status. The company also publishes the LoneStar Journal, indicating brand investment aimed at OEM and engineering audiences.

The company operates from more than 20 facilities across 11 countries spanning North America (US, Canada), Europe (UK, Netherlands, Romania), Asia (India, China, Singapore), the Middle East (UAE, Qatar), and Oceania (Australia). Dedicated manufacturing sites are located in Spring TX, Sycamore AL, Ploiesti Romania, and Chennai India, with distribution centers in Leeds and Walsall, UK. The company describes itself as having a global team of over 1,000 experts; however, the headcount figure may overlap with the broader LoneStar Group of 13+ businesses, which is a source of ambiguity for size triangulation.

Name

Lone Star Sealing Technologies

Legal name

LoneStar Sealing Technologies

Website

https://lonestarsealing.com

Company type

Private

Founded year

2003

Operating status

Operating

Short description

LoneStar Sealing Technologies manufactures precision-engineered gaskets, seals, and fasteners for OEM clients in oil and gas, petrochemicals, power generation, defense, civil nuclear, LNG, and renewables, operating from over 20 facilities across 11 countries.

Ownership category

akta.pro rank

Product category

Industrial Sealing Solutions

NAICS

Gasket, Packing, and Sealing Device Manufacturing (339991), Bolt, Nut, Screw, Rivet, and Washer Manufacturing (332722)

SIC

Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050), Bolts, Nuts, Screws, Rivets & Washers (3452)

akta.pro primary industry

Seals, Gaskets & Fluid Connectors (O-rings, packings, rotary seals, quick couplers) (IMAHAGAI)

akta.pro secondary industries

Oilfield Equipment Manufacturing & Supply (Wellheads, BOPs, Surface Equipment) (EUALABAL), Seals, Valves & Auxiliary Components (for Pumps/Compressors) (IMAHANAH), Pipe Accessories & Joining Systems (Couplings, Gaskets, Solvent Cement, Fusion Fittings) (IMANADAJ)

Keywords

• Industrial gaskets
• Sealing solutions
• API ring joints
• Spiral wound gaskets
• Precision engineered components

Headquarters

HQ city

Houston

HQ country

United States

HQ region

North America

Offices23 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Gaskets and Seals: Manufacturing and supplying of API ring joint, proprietary wellhead, spiral wound, raised and full faced flange gaskets to OEM clients. Products are manufactured to exacting standards and strict tolerances, maintaining long-term high integrity performance in corrosive, pressure, and high heat environments.
2. Precision Engineered Components: Fully bespoke, precision engineered components and assemblies designed and manufactured in-house to meet customer specifications, drawings or requirements.
3. Specialist Technical Support: Global team of engineering experts and technical specialists providing support services
4. 24/7 Hotshot Service: Emergency and urgent supply service operating 24/7 globally for critical situations

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

LoneStar Sealing Technologies manufactures and supplies API ring joint, proprietary wellhead, spiral wound, raised and full faced flange gaskets to OEM clients across America's oil, gas, and petrochemical industries. The company also designs and produces fully bespoke precision engineered components and assemblies in-house, manufactured from standard and exotic materials to exacting standards and strict tolerances for corrosive, high-pressure, and high-heat environments.

Product overview

Lone Star Sealing Technologies offers a unified portfolio of high-integrity industrial sealing solutions, centered on four core offerings: Gaskets and Seals (standard and bespoke products including API ring joint, proprietary wellhead, spiral wound, raised and full faced flange gaskets), Precision Engineered Components and Assembly (fully bespoke in-house manufacturing), the 24/7 Hotshot Service (global emergency response), and Specialist Technical Support (expert engineering consultation). The company serves critical industries including oil and gas, power generation, petrochemicals, defense, civil nuclear, and renewables, with products maintaining high performance in corrosive, high pressure, and high temperature environments.

Differentiator

Problem solved

Functional benefit

Brands

• 24/7 Hotshot: Combining localised technical support with global reach, the hotshot service operates 24/7, all around the world.
• Specialist Technical Support

Products and services

• Gaskets and Seals

Quantifiable outcome

• Mitigates downtime and improves efficiencies within mission critical applications

Named customers1 record

Segments8 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

Partnerships

One partnership is on record.

• LoneStar GroupcoreOthersLoneStar Sealing Technologies is the specialist manufacturer of gaskets within the LoneStar Group. The group consists of 13 individual businesses across Europe, Asia, North America and Australia, united in vision to serve critical industries globally.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Flowserve Corporation: Flowserve is a major manufacturer of pumps, valves, and seals for oil & gas, power, and chemical industries, including industrial sealing solutions. Comparable to LSST in serving oilfield OEM customers with complementary (rather than fully overlapping) sealing offerings.
• EagleBurgmann: EagleBurgmann is a global leader in mechanical seals and sealing technology for pumps and rotating equipment across oil & gas, chemical, and power markets. Comparable to LSST in mission-critical sealing applications and overlap with pump/compressor OEM customers.
• John Crane: John Crane is a global leader in mechanical seals, gaskets, and sealing technology for critical process industries including oil & gas, petrochemical, and power. Directly comparable to LSST's high-integrity sealing portfolio and serves overlapping OEM and end-customer accounts globally.

Direct peers

• Teadit Group: Teadit manufactures gaskets, packing, and sealing products serving oil & gas, chemical, and power industries globally. Directly competes with LSST in high-performance sealing solutions with comparable technical positioning.
• Klinger (Rich. Klinger): Klinger is a specialist manufacturer of industrial gaskets, sealing products, and expansion joints for oil & gas, petrochemical, power, and shipbuilding applications. Directly comparable to LSST in spiral wound, ring joint, and flange gasket categories.
• Garlock (EnPro Industries): Garlock is a long-established manufacturer of industrial gaskets, sealing products, and fluid containment products for oil & gas, chemical, and power generation customers. Directly competes with LSST in spiral wound, ring joint, and flange gaskets for the same mission-critical applications.
• Lamons Gasket & Seal: Lamons manufactures and supplies gaskets, stud bolts, and sealing products for oil & gas, refining, and petrochemical industries. Direct peer in both product category (gaskets) and fastener cross-sell motion, comparable to LSST's integrated fastener+gasket offering.
• James Walker (UK): James Walker is a UK-headquartered specialist in industrial sealing, gaskets, and fluid handling solutions for oil & gas, nuclear, defense, and power customers. Closely comparable to LSST in vertical mix (including civil nuclear) and high-integrity sealing approach.

Regional players

• Champion Fiberglass: While not a gasket maker, Champion is a comparable specialty industrial component supplier focused on oil & gas, utility, and infrastructure customers in the Americas. An adjacent peer that shares LSST's North American industrial customer base and distribution channels.
• Donit Tesnit: Donit Tesnit is a European-based manufacturer of soft gaskets, sealing materials, and jointing products for oil & gas, chemical, and power applications. Comparable to LSST in product category but primarily serves European customers rather than the Americas.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks4 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/lonestar-sealing-technologies

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries15 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 Lone Star Sealing Technologies