What GS-Hydro does

GS-Hydro is a global supplier of non-welded piping solutions, founded in Finland in 1974 and now operating as a wholly-owned subsidiary of Italy's Interpump Group S.p.A. since December 2017. The company invented non-welded pipe assembly technology, using proprietary cold-work mechanical connection methods (GS-90° Flare, GS-37° Flare, Retain Ring, bite-type fittings) that eliminate welding, hot work, sparks, and toxic fumes, enabling installation in hazardous offshore and marine environments where traditional welding is dangerous, costly, or impossible. Its technology holds DNV type approvals and NORSOK specification compliance (FS70, IS70), making it a specified solution for major offshore operators.

The company sells a comprehensive product portfolio including flanges, pipes, bite-type fittings, hoses, hose couplings, valves, JIC flare fittings, clamps, test equipment, and proprietary flaring/grooving/end-forming machines, supplemented by Interpump Group hydraulic pumps. Revenue is generated through four primary streams: hardware product sales, engineering and prefabrication services, on-site installation and project management, and recurring GS-Smart Care hose management services. GS-Hydro operates 13+ international branches across EMEA, the Americas, and APAC, employing 400+ people globally, and serves enterprise clients in offshore oil & gas (FPSOs, semi-submersibles, drilling rigs), marine (commercial vessels, AHTS, OCV), offshore wind, and land-based industrial sectors (pulp & paper, steel). The go-to-market model is engineering-led enterprise field sales with quote-based project pricing and full turnkey delivery spanning design, prefabrication, installation, and lifecycle maintenance.

Name

GS-Hydro

Legal name

INTERPUMP PIPING GS S.r.L.

Website

https://gshydro.com

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

251–500 employees

Short description

GS-Hydro is a global supplier of proprietary non-welded piping systems and prefabrication services for enterprise clients in offshore oil & gas, marine, offshore wind, and industrial sectors, operating 13+ international branches as a subsidiary of Interpump Group.

Ownership category

akta.pro rank

Product category

Industrial Piping Systems

NAICS

Fluid Power Valve and Hose Fitting Manufacturing (332912), Fabricated Pipe and Pipe Fitting Manufacturing (332996)

SIC

Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050)

akta.pro primary industry

Hoses, Tubing & Fittings (Hydraulic/Pneumatic Lines & Connectors) (IMAHAGAH)

akta.pro secondary industry

Pipe Fittings, Couplings & Connectors (IMADALAD)

Keywords

• Non-welded piping systems
• Hydraulic pipe fittings
• Offshore piping solutions
• Marine piping components
• Industrial hose management

Headquarters

HQ city

Espoo

HQ country

Finland

HQ region

Europe

Offices17 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Product Sales: Sale of piping components including flanges, pipes, bite type fittings, hoses, hose couplings, valves, JIC flare fittings, clamps, test equipment, and machines. Components are prefabricated using automated machines and include relevant type approvals and certifications.
2. Engineering & Prefabrication Services: Design, 3D/spool drawings, bill of materials, laser scanning, site surveys, thermal expansion calculations, forces calculation, bending & flaring, grooving, welding, end forming, pipe supports, preparation, painting & plating.
3. On-Site & Installation Services: Site survey, project management & supervision, fabrication, installation, pressure tests, flushing, hose management, hose services, machine rental, maintenance, spare parts. Services delivered by GS-Hydro project managers and supervisors for quality and cost control.
4. Hose Management Services (GS-Smart Care): Ongoing hose management contracts including initial survey, tagging, hose data storage in software, periodical hose inspections, and replacement of damaged hoses.
5. Interpump Hydraulic Pumps & Equipment: Distribution of Interpump Group products including high pressure pumps, maintenance-free pumps, stainless steel pumps, high-temperature pumps, misting pumps, hydraulic motors, motorpumps, and high pressure cleaners.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

GS-Hydro supplies proprietary non-welded piping systems and components—flanges, pipes, bite-type fittings, hoses, hose couplings, valves, JIC flare fittings, clamps, test equipment, and flaring/grooving/end-forming machines—for marine, offshore, and land-based industrial clients. The company also delivers turnkey engineering, prefabrication, on-site installation, documentation, project management, and the GS-Smart Care hose management service. Distribution of Interpump hydraulic pumps is offered as an add-on product line.

Product overview

GS-Hydro is an industrial piping solutions company offering non-welded piping systems and components for marine, offshore, and land-based industries. The product portfolio centers on leak-free piping solutions using proprietary flaring and retain ring technology that eliminates welding. Core products include GS-Flanges, Pipes, Bite Type Fittings, Hoses, Hose Couplings, Valves, JIC Flare Fittings, and Clamps, supported by specialized Machines (flaring, grooving, end-forming, and flushing units) for prefabrication. The company also offers Interpump hydraulic pumps as part of its product range. Services include comprehensive engineering, prefabrication, on-site installation, documentation, and project management. The GS-Smart Care hose management system provides digital tracking and monitoring of hose assemblies. GS-Hydro operates as part of Interpump Group following acquisition in 2017.

Differentiator

Problem solved

Functional benefit

Products and services

• GS-Flanges Non-welded pipe flanges for marine, offshore, and land-based piping applications.
• Pipes Piping components for non-welded piping systems used in various industrial applications.
• Bite Type Fittings Bite type (profile ring) fittings complying with DIN 2353/DIN EN ISO 8434-1, available in carbon steel and stainless steel for high-pressure applications.
• Hoses Hydraulic, P.T.F.E., and thermoplastic hoses for marine, offshore, and industrial applications.
• Hose Couplings One-piece, stainless steel, and carbon steel hose couplings including standard tails, inter-lock tails, multi-spiral tails, and Hyblast tails.
• Valves Valves including non-return valves, needle valves, and ball valves (low and high pressure).
• JIC Flare Fittings 37° flare fittings complying with SAE J 514 (ISO 8434-2), type approved by Det Norske Veritas, and specified by NORSOK for offshore use.
• Clamps Tube clamps conforming to DIN 3015 including Standard Series, Twin Series, and Heavy Series for pipes up to 12" NB (324 mm OD).
• Test Equipment Screw-in pressure test equipment for hydraulic and pneumatic applications with couplings, hoses, and accessories in multiple materials.
• Flaring and Grooving Machines Portable, workshop, and factory-type machines for cold flaring of tubes and pipes from 6 to 608 mm diameter, using the rolling cone method for JIC-37°, GS-37°, and GS-90° Flare Flange Systems.
• End-Forming Machines Machines for end-forming of piping from light-duty portable to heavy-duty factory types, including mobile workshop options for larger projects.
• GS Flushing Units (FEA-1000) Purpose-built offshore flushing unit with constant flushing capacity up to 1150 LPM, boost capacity to 1700 LPM, operating at 40-50 bar with pressure testing capability up to 630 bar, designed to meet North Sea offshore certification requirements.
• Interpump Pumps Hydraulic pumps from Interpump Group including high pressure, maintenance-free, stainless steel, high temperature, misting, and motor pumps, plus high pressure cleaners.
• On-site Services Professional on-site services including site survey, fabrication, installation, pressure tests, flushing, hose management, hose services, machine rental, maintenance, and spare parts, delivered by GS-Hydro project managers and supervisors.
• Engineering Services Engineering and design services including 3D drawings, spool drawings, bill of materials, laser scanning, site survey, thermal expansion calculations, and forces calculation.
• Prefabrication Services Prefabrication services including bending, flaring, grooving, welding, end forming, pipe supports, preparation, and painting and plating.
• Documentation Services System documentation including engineering drawings, bill of materials, test reports (pressure test and flushing), and certificates.
• Project Management Services Project management and supervision for offshore, marine, and industrial piping projects, including quality and cost control by dedicated project managers and supervisors.
• GS-Smart Care Hose Management System Proprietary hose management service and software for tagging, tracking, registering, and managing hose assemblies across vessels and offshore installations, with periodical inspections and replacement of damaged hoses.

Quantifiable outcome

• Up to 80% of manufacturing time saved compared to traditional welding methods
• +7 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Scale indicators9 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Parker Hannifin: Global motion and control technologies leader with a broad portfolio in hydraulic hoses, tube fittings, valves, and fluid connectors. Comparable to GS-Hydro as a major fluid-power fittings and hose-coupling supplier serving industrial, marine, and oil & gas customers, though it operates across a much wider portfolio.
• Eaton: Diversified power management company with a substantial hydraulics business covering hose, fittings, valves, and fluid conveyance. Comparable to GS-Hydro in fluid power components and fittings, but operates at much larger scale across many end markets.
• Danfoss: Global supplier of hydraulic, power, and climate solutions including hydraulic pumps, motors, valves, and fittings. Comparable to GS-Hydro across fluid power components and offshore/marine exposure, though with a much broader product and service portfolio.
• Continental (ContiTech): Industrial rubber and hose specialist under Continental, supplying hydraulic and industrial hoses plus fluid system components. Comparable to GS-Hydro in industrial hose and hose-coupling product categories serving marine and offshore customers.

Direct peers

• Gates Industrial: Global manufacturer of engineered power transmission and fluid power solutions, including hydraulic hoses, couplings, and fittings. Directly comparable to GS-Hydro's hose, coupling, and hydraulic fitting offering in industrial, marine, and offshore end markets.
• Manuli Hydraulics: Specialist in hydraulic hoses, fittings, and integrated fluid conveyance solutions for industrial, marine, and oil & gas applications. A direct competitor to GS-Hydro in non-welded and high-pressure hydraulic hose and fitting assemblies.
• Swagelok: Manufacturer of high-quality tube fittings, valves, and fluid system components for industrial, oil & gas, and analytical applications. Closely comparable to GS-Hydro's flare and bite-type fitting technology, particularly in demanding process and offshore environments.
• Trelleborg: Engineered polymer solutions provider with industrial hoses, marine, and offshore product lines. Comparable to GS-Hydro in marine and offshore sealing, hose, and piping-related solutions, particularly for harsh-environment fluid handling.
• STAUFF: Manufacturer and supplier of hydraulic accessories including tube clamps, pipe clamps, flanges, and fittings per DIN standards. Directly comparable to GS-Hydro's clamps, flanges, and pipe support product lines for industrial and offshore piping systems.
• Alfagomma: Italian-headquartered manufacturer of hydraulic and industrial hoses plus fittings. Directly comparable to GS-Hydro in hose, hose-coupling, and fluid-conveyance product categories, with similar industrial, marine, and offshore end-market exposure.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/gs-hydro

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries13 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about GS-Hydro