What Starline does

Starline S.p.A., founded in 1976 and headquartered in Costa di Mezzate (Bergamo), Italy, is a specialized manufacturer of forged steel ball valves serving primarily the upstream Oil & Gas industry. The company employs approximately 82 people and produces up to 200,000 valves per year across a complete size range from ½" to 36" and pressure ratings from ASME Class 150 to 2500, with API 6A variants rated up to 15,000 PSI. All forging and manufacturing is conducted in Italy using Western European raw materials. Starline operates as a wholly-owned subsidiary of Samson AG (Samson Group), one of the worldwide leaders in Control and Instrumentation valve solutions.

The product portfolio encompasses trunnion mounted, floating, subsea (API 6DSS), DBB-SBB, API 6A, and compact ball valve designs, with specialized executions including metal seated (up to 600°C), cryogenic (tested at -196°C per BS6364), and multiport configurations. Starline also delivers fully integrated automated valve solutions combining ball valves with rack & pinion and scotch & yoke actuators, control panels, positioners, and accessories, certified up to SIL 3. Engineering leverages Finite Element Analysis for subsea, API 6A, and compact valve designs. The company holds an unusually comprehensive certification stack (ISO 9001/14001/45001, API Q1/6D/6A, ATEX, PED, SIL, DNV and Lloyd's Type Approvals, Achilles, TR CU, TotalEnergies GS RC PVA 607) and operates an in-house fire test bench approved by TotalEnergies.

The business model is quote-based custom-engineered hardware sales targeting enterprise B2B customers, with revenue generated from ball valves and automated valve units. Go-to-market combines direct sales through four affiliated companies (Italy, France, UK, Finland) with a distributor network covering 100+ countries across the Americas, Europe, Africa, Middle East, Asia Pacific and Oceania. Customers include most major IOCs and NOCs (TotalEnergies, Shell, BP, Petronas, Equinor, ADNOC, Petrobras, CNOOC, Gazprom, INPEX, KOC, Energean, North Oil) and EPC contractors (TechnipFMC, KBR, Petrofac, PTTEP). Marketing is anchored on major industry trade events (ADIPEC, Valve World, ACHEMA, IVS), the VALVEcampus association, and the StarlineAR augmented reality mobile application.

Name

Starline

Legal name

Starline S.p.A.

Website

https://starline.it

Company type

Private

Founded year

1976

Operating status

Operating

Headcount range

51–100 employees

Short description

Starline S.p.A. is an Italian manufacturer of forged steel ball valves serving upstream Oil & Gas customers worldwide through direct subsidiaries and a 100+ country distributor network, operating as a wholly-owned subsidiary of Samson AG.

Ownership category

akta.pro rank

Product category

Industrial Ball Valves (Oil & Gas)

NAICS

Industrial Valve Manufacturing (332911)

SIC

Oil & Gas Field Machinery & Equipment (3533)

akta.pro primary industry

Valves & Cartridge Valves (Directional, Pressure, Flow Control) (IMAHAGAE)

Keywords

• Forged steel ball valves
• Trunnion mounted valves
• Subsea ball valves
• Oil and gas valves
• Automated valve packages

Headquarters

HQ city

Costa Di Mezzate

HQ country

Italy

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Ball Valve Manufacturing: Production and sale of forged steel ball valves including trunnion, floating, compact, API 6A, DBB-SBB, and subsea designs. Revenue generated from product sales to Oil & Gas industry with 70% of production going to upstream applications.
2. Automated Valve Solutions: Complete automated units combining ball valves with actuators, control panels, and accessories. Engineering, assembly, and testing performed internally.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Starline designs, manufactures, and supplies forged steel ball valves — including trunnion, floating, compact, API 6A, double block and bleed (DBB/SBB), and subsea configurations — for upstream Oil & Gas and industrial flow-control applications, with size range ¼" to 36" and pressure ratings from ASME Class 150 to 2500 (API 6A up to 15,000 PSI). The company also delivers complete automated valve units integrating ball valves with actuators, control panels, and instrumentation certified up to SIL 3, with all manufacturing performed in Italy using Western European raw materials.

Product overview

Starline is a specialized manufacturer of forged steel ball valves founded in 1976, producing over 200,000 valves per year. The company operates as a single-product-focused manufacturer with multiple configurations of ball valves as its core offering. The product portfolio centers on three main valve types (Trunnion, Floating, and Critical Ball Valves) available in six design variants (Trunnion, Floating, Subsea, DBB-SBB, API 6A, and Compact). Valves range from ¼" to 36" in sizes and Class 150 to 2500 in pressure ratings, with API 6A variants rated up to 15,000 PSI. Special executions include Metal Seated High Temperature (up to 600°C), Cryogenic (tested at -196°C), and Subsea (API 6DSS compliant) designs. An automation division provides complete integrated solutions combining ball valves with actuators and control systems certified up to SIL 3. All products are fully manufactured in Italy using Western European materials and are primarily focused on the upstream Oil & Gas sector, representing over 70% of product destination. The company operates under Samson AG (part of Samson Group) and maintains an international presence through affiliated companies in France, UK, and Finland, plus distribution networks across Americas, Europe, Africa, Asia, and Oceania.

Differentiator

Problem solved

Functional benefit

Brands

• StarlineAR: Starline's augmented reality app that allows immediate access to all Company and Product information as well as access to the AR (Augmented Reality) experience.

Products and services

• Trunnion Ball Valves Trunnion mounted ball valves with fixed ball and floating seat rings, available from ½" to 36" and ASME Class 150 to 2500, featuring independent ball and stem design, anti-static device, and 3-piece bolted construction. Sold to upstream Oil & Gas operators and EPC contractors for high-pressure isolation applications.
• Floating Ball Valves 3-piece bolted construction floating ball valves with easy in-line maintenance and unlimited end connection combinations; also available in 2-piece construction for flanged ASME Class 150/300 and DIN PN 10/16/40. Includes cryogenic and metal seated high temperature variants. Sold to Oil & Gas and industrial customers.
• Subsea Ball Valves Complete line of subsea ball valves conforming to API 6DSS, NACE, and ASME VIII specifications, with trunnion mounted design, anti-blow out stem, double piston effect sealing, and special seals to prevent seawater ingress. Sold to offshore Oil & Gas operators and EPC contractors for subsea isolation.
• DBB-SBB Ball Valves Single and Double Block & Bleed ball valves combining the functions of multiple valves in one compact solution, available in floating and trunnion mounted executions, with metal-seated, cryogenic, high temperature, API 6A, and compact design options. Sold to Oil & Gas and chemical/process industry customers.
• API 6A Ball Valves Ball valves manufactured according to API 6A specifications for upstream Oil & Gas applications, available in PSL-1, PSL-2, PSL-3/PSL-3G, and PSL-4 pressure product requirement levels with modular double block and bleed configurations. Sold to upstream operators, drilling contractors, and EPC firms.
• Compact Ball Valves Compact design ball valves with reduced dimensions for weight and space savings, featuring 2- or 3-piece design and optional double block and bleed version with two ball and needle system. Sold to Oil & Gas and process industry customers requiring space-constrained installations.
• Automated Ball Valve Units Complete automated valve systems integrating Starline ball valves with rack & pinion or scotch & yoke actuators, compact actuators, control panels, SOV, AFR, POV, QQEV, positioners, and accessories, SIL certified up to SIL 3 with in-house FAT testing. Sold as turnkey automated valve packages to Oil & Gas operators and EPC contractors.

Named customers17 records

Segments5 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration22 records

Feature7 records

Partnerships

One partnership is on record.

• VALVEcampus AssociationcoreStrategic or Co-development Partner · 1 January 2014VALVEcampus is an Italian association of manufacturers of industrial valves and components used in Oil Gas and Power Industries. Starline is a founding member. The association organizes IVS - Industrial Valve Summit and maintains a knowledge sharing platform for industry professionals.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Bonney Forge: Bonney Forge manufactures forged steel ball valves, gate valves, and check valves for oil & gas and power applications, with comparable pressure ratings and API 6D/6A qualifications. Closest direct peer to Starline on product architecture, materials, and end-market mix.
• Velan Inc. Velan is a publicly traded Canadian manufacturer of industrial valves including ball, gate, globe, and check valves, with strong upstream Oil & Gas and subsea exposure. Comparable product line, customer base, and certification depth make it a direct competitor in Starline's core niche.
• Bray International: Bray International is a privately held US manufacturer specialising in industrial ball, butterfly, and check valves for oil & gas, chemical, and power applications. Directly competes in upstream and midstream ball-valve segments with similar size class coverage.
• Neway Valve: Neway Valve is one of the largest Chinese manufacturers of ball, gate, globe, and check valves for the global oil & gas, power, and chemical markets. Directly competitive in forged ball valves for upstream applications, often winning on price in cost-sensitive projects.

Broad incumbents

• KITZ Corporation: KITZ is a Japanese-listed valve manufacturer with a broad portfolio spanning ball, gate, globe, butterfly, and check valves across industrial markets. Larger and more diversified than Starline but directly overlaps in forged ball valves for oil & gas.
• Flowserve Corporation: Flowserve is a US-listed global leader in pumps, valves, and seals serving oil & gas, power, chemical, and water markets. Directly competes with Starline in upstream and subsea ball-valve applications as part of a much broader portfolio and aftermarket service network.
• Cameron (SLB): Cameron, now part of SLB (formerly Schlumberger), is a major supplier of valves, wellheads, and surface equipment for upstream oil & gas. Directly competes in API 6A and subsea ball valves as part of a much larger integrated oilfield services portfolio.
• Emerson Electric (Fisher): Emerson's Fisher division manufactures control valves, isolation valves, and regulators for oil & gas, power, and process industries. Overlaps with Starline on automated valve packages and serves many of the same IOC and EPC customers globally.
• Crane Company: Crane Company, through Crane ChemPharma & Energy, manufactures process valves including ball, butterfly, gate, globe, and check valves for chemical, oil & gas, and power markets. A broader-portfolio competitor that overlaps with Starline in oil & gas ball-valve opportunities.

Emerging players

• Forum Energy Technologies: Forum Energy Technologies supplies subsea, drilling, and production equipment including valves and manifolds for upstream oil & gas. Smaller and more focused on subsea and downhole niches than Starline, but overlapping in select upstream ball-valve projects.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance17 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries3 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 Starline