What Ekofluid does

Ekofluid GmbH is a privately held Austrian industrial equipment manufacturer specializing in high-vacuum transformer oil treatment, regeneration, purification, and vacuum processing systems. Founded in 1996 and headquartered in Vienna, Austria, with all manufacturing performed in-house at its Levice, Slovakia facility (design, wiring, painting, programming, and testing — no subcontracted production), the company has delivered more than 500 systems to customers across 70+ countries on six continents and reports a 99% customer retention rate.

Its product architecture is a platform-plus-modules family: the FILOIL series handles transformer oil treatment at 1,500–24,000 l/h throughput for both mineral oils and esters; the FILOIL est. line extends this to natural and synthetic ester fluids at 3,000–9,000 l/h; the REOIL series (S, M, L and a Module add-on) performs full oil regeneration that restores aged oil to fresh-oil IEC 60422 specification by removing moisture, dissolved gases, acids, sludge, and corrosive sulfur compounds (DBDS and elemental sulfur) per IEC 62697 and IEC 62535; ECOIL provides stock purification systems; VACOIL delivers stand-alone transformer vacuum equipment up to 5,600 m³/h; and a Bespoke family (CABOIL, SORBOIL, MIXOIL, STOROIL) addresses dielectric fluids for X-ray, defense, medical, and refining applications. A distinctive technical capability is online regeneration on energized transformers — avoiding costly outages for utilities — together with in-line sorbent reactivation that reduces waste and operating cost per campaign.

Ekofluid monetizes through four revenue streams: capital equipment sales (one-time), equipment rental (usage-based), on-site services (regeneration campaigns, corrosive sulfur removal, vacuum filling) executed by its own service fleet, and recurring spare parts, consumables, and technical support. Go-to-market is direct enterprise field sales to utilities, transmission system operators, transformer OEMs, third-party service providers, industrial operators, and renewable energy operators, supported by technical content marketing (Handbook of Transformer Oil Excellence) and a multilingual website in English, Slovak, German, and Spanish. No AI/ML capabilities, funding rounds, M&A, or institutional investors are disclosed in the source data.

Name

Ekofluid

Legal name

Ekofluid GmbH

Website

https://ekofluid.com

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

1–10 employees

Short description

Ekofluid GmbH designs and manufactures in-house high-vacuum transformer oil treatment, regeneration, purification, and vacuum processing systems, serving utilities, transmission system operators, transformer OEMs, service providers, and industrial operators across 70+ countries.

Ownership category

akta.pro rank

Product category

Transformer Oil Processing Equipment

NAICS

Power, Distribution, and Specialty Transformer Manufacturing (335311), Oil and Gas Field Machinery and Equipment Manufacturing (333132)

SIC

Power, Distribution & Specialty Transformers (3612)

akta.pro primary industry

Transformer & Reactor Refurbishment / Replacement Programs (EUAEALAE)

akta.pro secondary industries

Repair, Refurbishment & Remanufacturing Services (EUAIANAB), Used Oil, Lubricants & Industrial Fluids Recovery/Recycling (IMAIAFAM)

Keywords

• Transformer oil treatment
• Oil regeneration systems
• Vacuum processing equipment
• Dielectric fluid processing
• Transformer maintenance equipment

Headquarters

HQ city

Vienna

HQ country

Austria

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Equipment Sales: Sale of transformer oil treatment, regeneration, purification, and vacuum processing equipment. Equipment ranges from compact units (1,500 l/h) to flagship systems (24,000 l/h) and includes stationary and mobile configurations. Also includes bespoke custom-built systems for specialized applications.
2. Equipment Rental: Short-term and extended deployment rental of FILOIL treatment plants and REOIL regeneration plants. Equipment delivered, commissioned, and optionally operated by Ekofluid technicians or handed over to customer-trained teams.
3. On-site Services: Service fleet performing transformer oil regeneration, corrosive sulfur removal, oil treatment, and vacuum filling services at customer substations on live transformers. Includes transformer oil regeneration campaigns and corrosive sulfur removal per IEC 62697 and IEC 62535.
4. Spare Parts & Consumables: OEM spare parts, filter elements, sorbent media, vacuum pump components, seals, and consumables for installed equipment. Technical support including remote diagnostics, on-site service visits, and operator training.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

Ekofluid designs, manufactures, and services high vacuum transformer oil treatment, regeneration, purification, and vacuum processing equipment, along with on-site regeneration campaigns and equipment rentals. The company's products (FILOIL, REOIL, ECOIL, VACOIL platforms plus bespoke systems) restore aged transformer oil to fresh-oil specification and remove corrosive sulfur compounds, serving utilities, transformer manufacturers, and industrial operators. All systems are engineered, manufactured, and tested in-house at the Levice, Slovakia facility.

Product overview

Ekofluid offers a platform-plus-modules product architecture centered on transformer oil treatment, regeneration, purification, and vacuum processing systems. The core product lines include the FILOIL series (mineral and ester oil treatment, 1,500-24,000 l/h), FILOIL est. series (ester-specific treatment, 3,000-9,000 l/h), REOIL series (oil regeneration, S/M/L sizes for 5,000-100,000 kg capacity), ECOIL series (purification, 2,000-8,000 l/h), VACOIL series (vacuum equipment, 750-5,600 m3/h), and Bespoke custom solutions (CABOIL, SORBOIL, MIXOIL, STOROIL). The REOIL Module serves as an add-on to FILOIL for enhanced regeneration capability. All systems are engineered, manufactured, wired, painted, programmed, and tested in-house at the company's facility in Levice, with operations headquartered in Vienna.

Differentiator

Problem solved

Functional benefit

Brands

• FILOIL: Transformer oil treatment platform, mineral oil, 1,500 to 24,000 l/h, stationary or mobile.
• FILOIL est.
• REOIL
• ECOIL
• VACOIL
• Bespoke
• CABOIL
• SORBOIL
• MIXOIL
• STOROIL

Products and services

• FILOIL 1500 Compact transformer oil treatment plant with 1,500 l/h capacity for mineral oil and esters, available in stationary or mobile configurations for on or off-line transformers. Targeted at small transformer fleets and tight field deployments.
• FILOIL 3000 Mid-compact transformer oil treatment plant with 3,000 l/h capacity for mineral oil and esters, available in stationary or mobile configurations for on or off-line transformers.
• FILOIL 6000 Standard transformer oil treatment plant with 6,000 l/h capacity for mineral oil and esters, available in stationary or mobile configurations for on or off-line transformers.
• FILOIL 9000 High-throughput transformer oil treatment plant with 9,000 l/h capacity for mineral oil and esters, available in stationary or mobile configurations for on or off-line transformers.
• FILOIL 12000 Large-asset transformer oil treatment plant with 12,000 l/h capacity for mineral oil and esters, available in stationary or mobile configurations for on or off-line transformers.
• FILOIL 24000 Flagship transformer oil treatment plant with 24,000 l/h capacity for mineral oil and esters, available in stationary or mobile configurations. Configurable in parallel for 48,000 l/h installations.
• FILOIL 3000 est Compact ester oil treatment plant with 3,000 l/h capacity for natural and synthetic esters, achieving less than 10 ppm water and greater than 95 kV breakdown voltage. Mobile-friendly design for on-site service of ester-filled transformers.
• FILOIL 6000 est Mid-range ester oil treatment plant with 6,000 l/h capacity for natural and synthetic esters, achieving less than 10 ppm water and greater than 95 kV breakdown voltage. Bridges portability and throughput for utility and service-fleet operation.
• FILOIL 9000 est High-throughput ester oil treatment plant with 9,000 l/h capacity for natural and synthetic esters, achieving less than 10 ppm water and greater than 95 kV breakdown voltage. For transformer factories, large service operations, and industrial-scale ester oil handling.
• REOIL S Compact mobile transformer oil regeneration plant for distribution transformers (1-5 MVA) up to 5,000 kg oil capacity. 1,000 l/h throughput with up to 6 adsorption columns and full FILOIL process integration. Built for urban substations, renewable sites, and remote installations.
• REOIL M Mid-range transformer oil regeneration plant for medium and large power transformers (5-100 MVA) up to 30,000 kg oil capacity. 6,000 l/h throughput with up to 10 columns (5x2), optional dual bank, and full FILOIL process integration. Supports continuous online operation on energized transformers.
• REOIL L High-capacity transformer oil regeneration plant for large power transformers (40+ MVA) up to 100,000 kg oil capacity. 9,000 l/h throughput with up to 24 columns (12x2) and dual-bank architecture for uninterrupted regeneration. For transmission system operators and large transformer fleets.
• REOIL Module Mobile adsorption-based regeneration module paired with a separate FILOIL plant for full oil restoration. 9,000 l/h throughput with up to 24 columns and automatic in-line sorbent reactivation. For service teams running regeneration campaigns with existing FILOIL equipment on-site.
• ECOIL 2000 Compact transformer oil purification plant with 2,000 l/h capacity for mineral oil and esters. Fixed configuration, available from stock.
• ECOIL 5000 Mid-range transformer oil purification plant with 5,000 l/h capacity for mineral oil and esters. Fixed configuration, available from stock.
• ECOIL 8000 Full-capacity transformer oil purification plant with 8,000 l/h capacity for mineral oil and esters. Fixed configuration, available from stock.
• VACOIL S Compact transformer vacuum equipment with 200 m³/h primary and 750 m³/h secondary vacuum capacity. Lightweight and mobile, designed for field service and tight spaces.
• VACOIL M Mid-size transformer vacuum equipment with 300 m³/h primary and 2,000 m³/h secondary vacuum capacity. Available in stationary or mobile configurations as the everyday workhorse unit.
• VACOIL L High-capacity transformer vacuum equipment with 660 m³/h primary and 5,600 m³/h secondary vacuum capacity. For transformer factories, large drying ovens, and high-throughput field operations.
• CABOIL Bespoke dielectric oil treatment custom-built for non-energy applications including X-ray machines, vacuum pumps, pulse generators, and cooling systems. Engineered around the customer's specific oil and process requirements.
• SORBOIL Bespoke industrial-scale sorbent-based purification using activated bauxite for acidity reduction, sulfur removal, and sorbent reactivation in oil production and recycling applications.
• MIXOIL Bespoke precision additive blending and dosing equipment for mixing, dosing, and conditioning oils with additives, inhibitors, and performance-enhancing agents. Available as standalone or production-line integration.
• STOROIL Bespoke intelligent oil storage with integrated filtration, real-time quality sensors, heating, and vacuum for de-aeration. Custom-sized to oil type and operational requirements.
• On-site Transformer Oil Regeneration Service Full oil restoration to IEC 60422 specification on-site at customer substations using Ekofluid REOIL equipment. Performed on live, energized transformers, returning acidity, tan delta, interfacial tension, breakdown voltage, and water content to fresh-oil values.
• Corrosive Sulfur Removal Service On-site removal of corrosive sulfur compounds per IEC 62697 and IEC 62535, including DBDS and elemental S8 sulfur. The oil is simultaneously fully regenerated during the campaign.
• Transformer Oil Treatment Service Field oil treatment service using Ekofluid equipment deployed at customer substations to restore oil quality on operational transformers.
• Transformer Oil Filling Service Vacuum filling service for transformer commissioning, refilling, and oil replacement using Ekofluid VACOIL and FILOIL equipment operated at customer sites.
• Oil Treatment Plant Rental Short-term and extended deployment rental of FILOIL transformer oil treatment plants, delivered and commissioned by Ekofluid with optional technician operation or handover to customer-trained teams.
• Oil Regeneration Plant Rental Short-term and extended deployment rental of REOIL transformer oil regeneration plants for one-time campaigns or when capital purchase is not justified.
• Spare Parts and Consumables OEM spare parts, filter elements, sorbent media, vacuum pump components, seals, and consumables for installed Ekofluid equipment.
• Technical Support Technical support including remote diagnostics, on-site service visits, and operator training for installed Ekofluid equipment.

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators4 records

Recent moves5 records

Expansion highlights6 records

Broad incumbents

• Hyundai Electric: Hyundai Electric is a major power transformer manufacturer with growing service operations across Asia and the Middle East. Its transformer service contracts overlap with Ekofluid's addressable market in regions where Ekofluid's own service footprint is currently limited.
• Siemens Energy: Siemens Energy manufactures large power transformers and provides transformer service and digital monitoring solutions globally. Its service portfolio overlaps with Ekofluid's on-site regeneration campaigns, particularly for transmission system operator customers seeking bundled asset-management offerings.
• Hitachi Energy: Hitachi Energy is the world's largest transformer manufacturer and offers transformer services including oil treatment, condition monitoring, and life-extension programs. As a broad incumbent it competes with Ekofluid indirectly by offering bundled service contracts and could vertically integrate further into oil regeneration.

Direct peers

• SDMyers: SDMyers is a U.S.-based transformer services specialist offering transformer oil testing, regeneration, and field maintenance. It directly competes with Ekofluid's on-site service fleet and transformer oil regeneration campaigns, targeting the same utility and industrial transformer operator segments.
• Enervac International: Enervac designs and manufactures oil purification, degassing, and dehydration systems for transformer, switchgear, and hydraulic fluids. It directly competes with Ekofluid's FILOIL and ECOIL product lines, with comparable mobile and stationary configurations and similar utility/industrial customer targeting.
• GlobeCore: GlobeCore manufactures transformer oil purification, regeneration, and degassing equipment with mobile and stationary platforms serving utilities and transformer service companies worldwide. It is the closest direct competitor to Ekofluid in transformer oil processing equipment, operating in a similar product category, capacity tier structure, and customer base.
• BVA Inc: BVA Inc produces oil filtration and purification equipment for dielectric and industrial oils, including transformer oil applications. It overlaps with Ekofluid's ECOIL purification and FILOIL treatment platforms, addressing the same transformer maintenance end-market.
• Kleen Oil & Energy: Kleenoil designs offline oil filtration and purification systems for dielectric and lubrication oils. It serves transformer and industrial maintenance customers with products comparable to Ekofluid's ECOIL platform, making it a direct peer in the oil purification equipment category.

Emerging players

• Veolia Environmental Services: Veolia provides industrial fluid management, waste oil collection, and recycling services for utilities and large industrial operators. Its hazardous waste and used-oil handling capability partially overlaps with Ekofluid's on-site regeneration campaigns where end customers consider oil replacement versus regeneration alternatives.
• Megger: Megger supplies electrical test equipment and transformer oil testing/diagnostic instruments used by utilities alongside oil treatment service providers. While not a direct equipment competitor, Megger's installed base at transformer operators makes it a partial-overlap peer addressing the same asset-management workflow.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/ekofluid

Revenue estimate

Valuation estimate

Number of profiles

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 Ekofluid