I3 Membrane Gmbh

What I3 Membrane Gmbh does

i3 Membrane GmbH is a Radeberg, Germany-based membrane technology company that develops polymer-based separation and sterilfiltration solutions for medical, laboratory/pharmaceutical, and biotechnology applications. The company operates across three business units: Medical (point-of-use and inline sterile water filters such as i3 ONE, i3 TWO, i3 FOUR, and i3 FIVE for infection prevention in hospitals, dental and endoscopy units); Lab/Pharma (gold-coated and aluminum-coated PET and PC track-etched membranes, air monitor cassettes, and vacuum filtration units for particle, microplastic, and asbestos analysis); and Biotech (Digital Membrane Chromatography membrane adsorbers and Smart Control Unit for protein purification, including monoclonal antibodies). Its proprietary DMC technology uses low electrical voltage (up to 2V) to elute proteins without pH or salt changes, achieving over 90% recovery at roughly double the speed of conventional salt-induced elution.

The company sells primarily through direct field sales organized by region and business unit (Germany, Austria, Switzerland, UK, USA/Canada), supplemented by an online shop. Subsidiary entities operate in the US (i3 Membrane Corporation, Huntersville, NC, established April 2022) and the UK (i3 Membrane Ltd., Manchester, established January 2026), with an Austria branch serving Austria and Switzerland. Pricing is quote-based for enterprise customers; online shop handles smaller orders, with free membrane sample packs offered to Lab/Pharma prospects. The revenue model is hardware/physical product sales of membrane filters, adsorbers, and accessories across the three verticals.

i3 Membrane has held DIN EN ISO 13485 and DIN EN ISO 9001 certifications for over 10 years and received FDA 510(k) clearance in summer 2023 for its sterile filter lines, enabling US market access. In November 2025 it launched its Digital Membrane Chromatography platform, in June 2025 it won three categories at the Pharmaceutical Technology Excellence Awards, and in June 2026 it received the EcoVadis Bronze Medal for sustainability. The company is privately held and founder/management-owned, with no disclosed external VC/PE backing; a single undisclosed seven-figure EUR grant was received in 2021 for biomolecule separation technology development.

Name

I3 Membrane Gmbh

Legal name

i3 Membrane GmbH

Website

https://i3membrane.com

Company type

Private

Operating status

Operating

Short description

i3 Membrane GmbH develops membrane-based separation and sterilfiltration products for medical water hygiene, laboratory/pharmaceutical analytics, and biotech protein purification, serving hospitals, labs, and biopharma manufacturers across DACH, the UK, and the US.

Ownership category

akta.pro rank

Product category

Membrane Filtration Products

NAICS

Surgical Appliance and Supplies Manufacturing (339113)

SIC

Unsupported Plastics Film & Sheet (3081), Plastic Material, Synth Resin/Rubber, Cellulos (No Glass) (2820)

akta.pro primary industry

Bioprocess Consumables & Reagents (resins, membranes, media components, buffers) (HLAAAJAI)

akta.pro secondary industry

Separation & Filtration Equipment (Filters, Centrifuges, Membranes) (IMAHAEAB)

Keywords

• Membrane filtration products
• Sterile water filters
• Track-etched membranes
• Membrane chromatography
• Infection prevention filters

Headquarters

HQ city

Radeberg

HQ country

Germany

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware / Physical Product Sales: i3 Membrane generates revenue primarily through the sale of physical membrane products including sterile water filters (point-of-use and inline), metal-coated track-etched membranes for lab analysis, membrane adsorbers, vacuum filtration units, air monitor cassettes, and couplings/accessories. Products are sold directly to healthcare, lab/pharma, and biotech customers through regional sales teams and online shop. Pricing appears to be quote-based for enterprise customers.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

i3 Membrane develops and manufactures membrane-based separation and sterile filtration products for medical, laboratory, pharmaceutical, and biotechnology applications. The company sells point-of-use and inline water sterilizing filters for infection prevention in healthcare settings, metal-coated track-etched membranes for particle, microplastic, and asbestos analysis, and Digital Membrane Chromatography (DMC) membrane adsorbers for protein purification. Products are sold through direct field sales, regional subsidiary operations, and an online shop to hospitals, labs, pharmaceutical firms, and biotech companies across Europe, North America, and Australia.

Product overview

i3 Membrane GmbH offers a portfolio of membrane-based separation and filtration products across three business units: Medical, Lab/Pharma, and Biotech. The Medical unit provides point-of-use and inline water sterilizing filters (i3 ONE, i3 TWO, i3 FOUR, i3 FIVE, i3 WundPen) for infection prevention in hospitals, dental units, and endoscopy applications. The Lab/Pharma unit supplies metal-coated track-etched membranes (PET and PC, gold or aluminum-coated) for particle analysis, microplastic analysis, and asbestos detection, along with air monitor cassettes and vacuum filtration units. The Biotech unit features Digital Membrane Chromatography (DMC) products including CEX and AEX Membrane Adsorbers and a Smart Control Unit for protein purification, representing the company's digital separation technology. Supporting services include the i3 track App for filter change documentation, filter change services, webinars, application databases, and a whitepaper on DMC technology.

Differentiator

Problem solved

Functional benefit

Brands

• i3 ONE: Point-of-Use water filter for taps in medical settings
• i3 TWO
• i3 FOUR
• i3 FIVE
• i3 track App
• DMC (Digital Membrane Chromatography)
• DMC CEX Membran Adsorber
• DMC AEX Membran Adsorber

Products and services

• i3 ONE Point-of-Use Water Filter (Tap) Point-of-use water filter for taps designed for infection prevention and water hygiene in medical settings. Filters water to prevent waterborne pathogens in hospitals, dental units, and clinical environments.
• i3 TWO Point-of-Use Water Filter (Shower) Point-of-use water filter for showers designed to prevent Legionella and other waterborne pathogens in hospital settings.
• i3 FOUR Inline Water Filter (Dental & ENT) Inline water filter for dental units and ENT (Ear, Nose, Throat) applications to ensure sterile water supply and prevent infections in clinical settings.
• i3 FIVE Inline Water Filter (Endoscopy) Inline water filter specifically designed for endoscopy applications to maintain water hygiene and prevent cross-contamination during procedures.
• i3 WundPen Sterilfilter (Wound Care) Sterilizing filter for wound care applications in medical settings.
• Medical Couplings and Accessories Couplings and additional accessories for connecting and maintaining medical filtration systems.
• PET Membrane | Gold-coated Gold-coated polyethylene terephthalate (PET) track-etched membrane for particle analysis, microplastic analysis, and asbestos analysis in lab and pharma applications.
• PET Membrane | Aluminum-coated Aluminum-coated PET track-etched membrane providing an alternative to gold coating for particle and microplastic analysis in LDIR systems.
• PC Membrane | Gold-coated Gold-coated polycarbonate track-etched membrane optimized for SEM, FTIR, and Raman analysis for identification and characterization of micro- and nanoparticles.
• Air Monitor Cassette Single-use air monitoring cassette for environmental air quality analysis in pharmaceutical and laboratory settings.
• Vacuum Filtration Unit Vacuum filtration unit for laboratory sample preparation and particle separation applications.
• i3 DMC CEX Membrane Adsorber Cation exchange membrane adsorber using Digital Membrane Chromatography (DMC) elution technique for efficient and gentle purification of positively charged molecules including proteins and antibodies.
• i3 DMC AEX Membrane Adsorber Anion exchange membrane adsorber using DMC elution technique for efficient and gentle purification of negatively charged molecules.
• Smart Control Unit Digital control unit for membrane chromatography processes, enabling the DMC technology for protein purification.

Quantifiable outcome

• DMC process is 2 times faster than conventional salt-induced elution
• +3 more outcomes

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators5 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• GVS Group: Italian filtration manufacturer producing membrane filters, sterilizing filters, and healthcare filtration products. Comparable in both medical point-of-use filtration and analytical membrane segments.
• Asahi Kasei (Microza): Manufacturer of Microza ultrafiltration and microfiltration membranes for industrial and life science applications. Directly comparable to i3 Membrane's membrane-based separation technologies, particularly for bioprocess and analytical uses.
• Repligen Corporation: Bioprocessing-focused specialist offering single-use chromatography and filtration consumables including membrane adsorbers for protein purification. Closely comparable to i3 Membrane's Biotech business unit and DMC membrane adsorbers.
• Whatman (Cytiva subsidiary): Established manufacturer of membrane filters for laboratory and analytical applications including particle analysis. Closely comparable to i3 Membrane's Lab/Pharma track-etched membrane portfolio.

Broad incumbents

• Sartorius AG: Global bioprocessing leader offering Sartobind membrane chromatography products and a broad filtration/filtration consumables portfolio. Closest large-scale incumbent competing with i3 Membrane's DMC and bioprocess membrane adsorbers in mAb purification.
• Merck KGaA (MilliporeSigma): Life science giant offering Millipore filtration membranes, sterile filter devices for medical/hospital use, and bioprocess chromatography consumables. Direct competitor across i3 Membrane's sterile filtration and biotech portfolios.
• 3M Health Care: Diversified healthcare/industrial conglomerate offering sterilizing filtration products and infection prevention solutions for healthcare settings. Competes with i3 Membrane's hospital water filtration portfolio.
• Cytiva (Danaher): Major bioprocess filtration and chromatography supplier including membrane adsorbers, lab filtration, and sterile filtration products. Competes directly with i3 Membrane across all three business units — Medical, Lab/Pharma, and Biotech.
• Pall Corporation (Danaher): Established filtration specialist with strong hospital water filtration, bioprocess, and analytical membrane offerings. Particularly comparable in the medical point-of-use sterilizing filter category.

Emerging players

• Entegris: Specialty materials and filtration company producing membrane-based filters for life sciences and industrial applications. Comparable to i3 Membrane's analytical and bioprocess membrane consumables.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@i3membrane
• LinkedInlinkedin.com/company/10879906

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

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 I3 Membrane Gmbh