Onis

What Onis does

Onis is a privately held French industrial equipment manufacturer founded in 1979 by Edmond Onis, headquartered in Berre l'Etang (with operations also referenced in Lambesc), France. The company designs and manufactures patented Quick-Action Line Blind (QLB) devices and a related family of mechanized pipe isolation products for the midstream and downstream petrochemical, chemical, gas, fertilizer, olefin, and general industrial sectors. Its core technology uses synchronized eccentric shafts inside forged bodies to physically spread pipe flanges and deploy a steel slide gate, enabling a single operator to achieve complete positive isolation of a pipe in minutes without tools, compared to hours with conventional spectacle or figure-8 blinds.

The product portfolio spans the QLB in three size variants (PLB for 1/2"-10", PLR for 10"-42", and MPL for >42"), the D3B which integrates upstream/downstream valves with a mechanical safety interlock into a single device, the QFC for rapid strainer replacement, the QDC for rapid rupture disc changeover, and the Hi-Safe safety system add-on. Pressure ratings extend to class #5500 (420 bars) and temperatures from -120°C to 650°C. The firm operates a direct enterprise field sales motion, selling custom-manufactured equipment quote-by-quote and supplementing hardware revenue with the ONIS CARE managed service program (annual diagnostics, 24/7 emergency support, operator qualification training valid for 2 years), refurbishment services, and spare parts supply. Onis holds ISO 9001:2015, PED 2014/68/EU, and TR CU 32 certifications audited by SGS and TÜV SAAR, and serves 450+ plants worldwide including Shell, BP, TotalEnergies, Chevron, LyondellBasell, Solvay, Evonik, Arkema, Versalis, Thyssenkrupp, ArcelorMittal, Linde, Air Liquide, Petrobras, Pemex, and Repsol, with an installed base exceeding 12,000 devices accumulated over 45+ years.

Name

Onis

Legal name

ONIS

Website

https://onislineblind.com

Company type

Private

Founded year

1979

Operating status

Operating

Headcount range

11–50 employees

Short description

Onis is a French privately-held manufacturer of patented Quick-Action Line Blind devices and related mechanized pipe isolation products, serving midstream and downstream petrochemical, chemical, gas, and industrial enterprises across 450+ plants worldwide with a direct enterprise field sales motion.

Ownership category

akta.pro rank

Product category

Industrial Piping Equipment

NAICS

Fabricated Pipe and Pipe Fitting Manufacturing (332996), Industrial Valve Manufacturing (332911)

SIC

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

akta.pro primary industry

Pipe Fittings, Couplings & Connectors (IMADALAD)

akta.pro secondary industry

Plumbing Valves & Controls (Shutoff, Mixing, Backflow) (IMADALAB)

Keywords

• Industrial piping equipment
• Pipe isolation devices
• Line blind manufacturing
• Process safety equipment
• Petrochemical piping solutions

Headquarters

HQ city

Lambesc

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Industrial Piping Equipment Sales: Sale of patented mechanized line blind devices and related industrial piping products including QLB, D3B, QFC, and QDC. Products are manufactured to order and tailored to specific customer requirements.
2. Spare Parts and Gaskets: Supply of replacement seals and gaskets for ONIS devices. Only four seals on slide gate, with only two online at any time. Seals accessible for inspection and replacement without opening the line.
3. Professional Services and Training: Training programs for operators, maintenance personnel, and engineers. On-site diagnostic visits, repairs, retrofit operations, and ONIS CARE subscription program with annual diagnosis and 24/7 emergency support.
4. Refurbishment Services: Cost-effective and environmentally friendly refurbishment program to extend lifespan of existing ONIS devices.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Onis designs and manufactures patented Quick-Action Line Blinds (QLB) and related mechanical piping isolation devices, including the D3B (Double Block Bleed and Blind), QFC (Quick Filter Changer), and QDC (Quick Rupture Disc Changer). The devices use synchronized eccentric shafts to spread flanges and enable a single operator to achieve complete positive pipe isolation in minutes without tools, primarily serving midstream and downstream petrochemical, chemical, and energy industries.

Product overview

Onis offers a suite of patented mechanical piping isolation devices centered around its Quick Action Line Blind (QLB) technology, which enables a single operator to safely isolate pipes in minutes without tools by physically separating upstream and downstream piping with a steel plate. The product portfolio includes the flagship QLB in three size variants (PLB for 1/2"-10", PLR for 10"-42", and MPL for >42"), the D3B (Double Block Bleed and Blind) which integrates valves and mechanical safety interlocks into one device, the QDC (Quick Rupture Disc Changer) for rapid burst disc replacement, and the QFC (Quick Filter Changer) for fast strainer changes. All products share a common design philosophy: forged bodies, synchronized eccentric shaft mechanisms, self-locking operation, factory-set sealing, and 100% full bore. The portfolio operates as a unified mechanical platform with size/model variants and optional add-ons (motorized actuators, fire-safe design, Hi-Safe safety interlocks) rather than distinct software products. Onis supplements its hardware with ONIS CARE maintenance services, operator training, and equipment refurbishment programs.

Differentiator

Problem solved

Functional benefit

Products and services

• Quick Action Line Blind (QLB) Patented mechanized line blind providing complete positive isolation of pipes in minutes by a single operator without tools, using synchronized eccentric shafts to spread flanges and deploy a slide gate with a steel blind plate. Serves midstream and downstream petrochemical, chemical, and energy plants as a faster, safer alternative to spectacle or figure-8 blinding, reducing downtime by up to 95%.
• Double Block Bleed and Blind (D3B) Enhanced QLB that integrates one upstream valve, one quick-action line blind, and one downstream valve in a single device, with a mechanical interlock preventing operation if valves are not fully closed. Designed to reduce dead volume and eliminate human-factor risks in congested or critical piping areas at petrochemical and chemical plants.
• Quick Filter Changer (QFC) Mechanical device enabling a single operator to change conical or flat strainer filters in minutes without tools, using two linked tubes equipped with strainers. Protects downstream equipment such as pumps, compressors, and regulation valves while minimizing maintenance time at petrochemical and industrial processing sites.
• Quick Rupture Disc Changer (QDC) Mechanical device enabling a single operator to resume production quickly after a rupture disc activation. Equipped with two rupture disc holders on a slide gate (one operational, one on standby), allowing proactive or reactive changeover with minimal downtime and reduced operator exposure in process plants.
• ONIS CARE Maintenance and Support Program Subscription-style maintenance and support program offering operator qualification training, annual on-site device diagnostics, emergency repair services, and spare parts availability with immediate delivery guarantee. Targets existing Onis device owners in petrochemical and chemical plants seeking ongoing reliability assurance.
• ONIS Training Center On-demand safety training sessions covering device operation, seal replacement, and best safety practices, culminating in a nominative certificate valid for 2 years. Provided to operators, maintenance personnel, and engineers at customer sites.
• ONIS Refurbishment Program Cost-effective and environmentally friendly refurbishment service that extends the lifespan of existing ONIS devices as an alternative to full replacement. Offered to installed-base customers seeking to maximize asset longevity.

Quantifiable outcome

• Reduces downtime by up to 95% compared to conventional blinding methods
• +4 more outcomes

Named customers20 records

Segments8 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators9 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Technoflow: UK-based specialist in positive isolation and line blind technologies serving the petrochemical and process industries. Closest direct peer to Onis in mechanized line blinds and double block & bleed solutions.
• Piping Technology & Products (PT&P): US manufacturer of custom pipe supports, line blinds, and related fabricated piping products. Comparable as a custom-engineered pipe isolation/equipment provider for process industries.

Broad incumbents

• Flowserve Corporation: Global leader in industrial pumps, valves, and flow control serving oil & gas, chemical, power, and water markets. Broad incumbent competing for the same downstream specification dollars as Onis, though without specialization in mechanized line blinds.
• Emerson Electric (Flow Control): Multi-national industrial automation and flow control company with deep valve portfolios for petrochemical and process industries. Competes for isolation/control valve sockets where Onis's QLB/D3B may be specified.
• Crane Co. Diversified industrial manufacturer with a process flow technologies segment including severe-service valves for chemical and petrochemical customers. Overlaps with Onis in industrial isolation specification work.
• Velan Inc. Manufacturer of industrial valves (gate, globe, check, ball, butterfly) for severe-service applications in oil & gas, chemical, and power. Competes with Onis in petrochemical isolation sockets.
• KITZ Corporation: Japanese industrial valve manufacturer with broad product lines for process industries including petrochemical. Competes for specification on the same valve/isolation line items where Onis is positioned.
• Mueller Industries: US manufacturer of copper, brass, aluminum, and plastic products including industrial pipe fittings and valves. Broad-line competitor in industrial piping components serving similar end markets.

Emerging players

• Pentair: Global water and fluid solutions company with industrial filtration product lines including strainers and filter changers. Overlaps with Onis's Quick Filter Changer (QFC) for downstream-equipment protection applications.
• Argus Machine Co. Canadian manufacturer of specialty process equipment including custom pressure vessels and line blind products. Comparable as a niche custom-engineered process equipment maker for oil & gas and petrochemical customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCdqLHOpDIvUvrM3Jyg83_Hw
• LinkedInlinkedin.com/company/9231881
• Xx.com/OnisLineBlind

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Onis