What KX Technologies does

KX Technologies is a manufacturer of carbon-block and specialty-media filtration products for water and air applications, operating as an OEM-embedded supplier to global appliance, residential, commercial, and industrial customers. Founded in 1989 and headquartered at 55 Railroad Avenue, West Haven, Connecticut, the company runs dual manufacturing campuses in the United States (West Haven) and Singapore (201 Tuas South Avenue 2), the latter described as one of the world's largest solid-state extrusion facilities for activated carbon filters. Its core technology stack centers on activated-carbon block extrusion paired with FACT® Media — a patented wet-laid process that combines microscopic fibrillated fibers with high adsorbent loadings to deliver lower pressure drop, higher dirt-holding capacity, and longer filter life. FDA 21 CFR Part 11 compliant materials are used for potable-water products.

The company's go-to-market is a B2B OEM model in which it collaborates with customers from product design through manufacturing, sharing intellectual property and 30+ years of process expertise. Named OEM customers include Electrolux, Frigidaire, Sub-Zero, Kenmore, and Viking, with patent-protected refrigerator filter models such as WF2CB, ULTRAWF, WF3CB, 7023819, 46-9911, and 9999. Product lines extend beyond refrigerator filters into refrigerator air filters, water-cooler filters, POU under-sink and countertop units, POE whole-house systems, commercial/industrial filters for food service, laboratory, medical, and agricultural use, plus residential and personal-use filters. MatriKX® serves as a sub-brand for carbon block products. KX Technologies LLC is a wholly-owned subsidiary of Marmon Water, itself part of the Marmon Group under Berkshire Hathaway. Pricing is not publicly disclosed; sales run through contact and dealer-inquiry forms on kxtech.com. The company holds a substantial patent portfolio covering carbon block geometry, refrigerator water filter designs, and the FACT® Media process, and has actively defended this IP at the U.S. International Trade Commission, securing a General Exclusion Order against infringing imports in November 2019. Certifications include ISO 9001, NSF/ANSI 42, and WQA Gold Seal.

Name

KX Technologies

Legal name

KX Technologies LLC

Website

https://kxtech.com

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

101–250 employees

Short description

KX Technologies is an OEM manufacturer of activated carbon block and specialty-media water and air filtration products, serving global appliance, residential, commercial, and industrial customers from facilities in West Haven, CT and Singapore as a Marmon/Berkshire Hathaway subsidiary.

Ownership category

akta.pro rank

Product category

Water Filtration Products

NAICS

Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Carbon and Graphite Product Manufacturing (335991)

SIC

Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564), Miscellaneous Chemical Products (2890)

akta.pro primary industry

Activated Carbon & Carbon Adsorbents (IMAEAIAF)

akta.pro secondary industries

Air Quality & Filtration Equipment (IAQ) (IMAHAKAI), Industrial Filtration Media & Dust Collection Textiles (Air/Liquid Filtration) (IMAOADAC)

Keywords

• Carbon block filters
• Activated carbon filtration
• Water filtration media
• OEM filtration solutions
• Specialty filtration media

Headquarters

HQ city

West Haven

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. OEM Filtration Products: KX Technologies designs and manufactures carbon filtration products for original equipment manufacturers (OEMs) worldwide. The company provides custom and standard filtration solutions including carbon blocks, specialty media, and filter devices for appliance, residential, commercial, and industrial applications.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

KX Technologies designs and manufactures customized activated carbon filtration products and specialty filtration media for original equipment manufacturers (OEMs) worldwide. The company produces carbon block filters, FACT® Media, and complete filtration devices through solid-state extrusion processes for appliance, residential, commercial, industrial, and personal use applications. Operating from facilities in West Haven, Connecticut and Singapore, KX serves as a global supplier of carbon filtration solutions with 30+ years of industry experience.

Product overview

KX Technologies is a manufacturer of carbon block and filtration products for water applications, offering a portfolio of activated carbon filtration solutions. The core product line includes Activated Carbon Block Filters and FACT® Media (patented fibrillated fiber technology). The company produces multiple filter product lines spanning refrigerator water and ice filters (for Electrolux, Frigidaire, Sub-Zero, Kenmore, Viking), refrigerator air filters, water cooler filters, Point-Of-Use (POU) under-sink and countertop systems, Point-Of-Entry (POE) whole-house systems, commercial/industrial filters, residential filters, and personal use filters (pitcher, faucet mount, bottles). MatriKX® represents a related sub-brand for carbon block filters. The company operates as an OEM supplier, working with original equipment manufacturers to design and manufacture custom filtration solutions.

Differentiator

Problem solved

Functional benefit

Brands

• MatriKX: MatriKX carbon block filters - a product line of carbon filtration solutions
• FACT Media

Products and services

• Activated Carbon Block Filters Industry-leading activated carbon block filtration technology for removing chlorine, VOCs, and odors from water. Manufactured using solid-state extrusion process at world-class facilities in FDA-compliant materials, suitable for potable water, industrial, food service, and commercial applications.
• FACT® Media Patented filtration media using fibrillated fibers that create interconnected networks to immobilize particles more efficiently. Combined with high percentages of adsorbents via wet-laid process for lower pressure drop, higher dirt holding capacity, and longer filter life.
• Refrigerator Water and Ice Filters Filters for leading refrigerator manufacturers including Electrolux, Frigidaire, Sub-Zero, Viking, and Kenmore. Includes models such as WF2CB, EWF2CBPA, ELTRAWF, WF3CB, and Sub-Zero Part No. 7023819.
• Refrigerator Air Filters Filters that absorb food odors and keep refrigerators smelling fresh and clean.
• Water Cooler Filters Cassette filters designed for point-of-use water dispensing systems.
• Point-Of-Use (POU) Water Filters Under-sink and countertop filtration units with microbiological health claims for residential and commercial drinking water applications.
• Point-Of-Entry (POE) Systems Whole-house water filtration systems designed for point-of-entry residential applications.
• Commercial and Industrial Filters Filtration solutions for diverse commercial applications including food service, laboratory, medical, and agricultural sectors.
• Residential Filters Extensive range of products engineered specifically for residential filtration and drinking water systems.
• Personal Use Filters Filters for personal use including pitcher filters, faucet mounts, and water filter bottles.
• MatriKX® Carbon Block Filters Sub-brand of KX Technologies offering carbon block filters distributed via matrikx.com.

Quantifiable outcome

• First to extrude activated carbon block filters
• +5 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Six partnerships are on record, tiered core, flagship and minor.

• ElectroluxcoreOEM/ Whitelabel/ Licensing PartnerKX Technologies licenses patents to Electrolux Home Products, Inc. for refrigerator water filters. Electrolux uses KX's patented filter technology in their products including Frigidaire brand filters. The partnership was strengthened by joint action at the ITC to ban counterfeit water filters.
• Marmon Water / Marmon Group / Berkshire HathawayflagshipOthersKX Technologies LLC is a Marmon Water company and part of the Marmon Group, which is a subsidiary of Berkshire Hathaway. This corporate family relationship provides organizational backing and resources.
• FrigidairecoreOEM/ Whitelabel/ Licensing PartnerFrigidaire uses KX Technologies' patented water filter technology, including models WF2CB, ULTRAWF, WF3CB, and 860627. Multiple patents protect these filter products.
• Sub-ZerocoreOEM/ Whitelabel/ Licensing PartnerSub-Zero uses KX Technologies' patented refrigerator filter technology for Part No. 7023819, with multiple patents covering these products.
• KenmorecoreOEM/ Whitelabel/ Licensing PartnerKenmore uses KX Technologies' patented water filter technology, including models 46-9911, 469911, 9911, 9916, and 9999.
• VikingminorOEM/ Whitelabel/ Licensing PartnerViking uses KX Technologies' patented refrigerator filter technology (RWFVRF model), covered under KX patent portfolio.

Scale indicators3 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Veolia Water Technologies: Global provider of water treatment solutions including filtration media and systems for industrial and municipal applications. Overlaps with KX in commercial and industrial filtration product lines.
• A. O. Smith Corporation: Manufacturer of water heating and treatment products for residential and commercial markets. Overlaps with KX in residential water filtration and POU/POE systems supplied through OEM and dealer channels.
• Brita (Clorox): Leading consumer water filtration brand owned by The Clorox Company, using carbon block and specialty filter media. Comparable in the activated carbon consumer filtration category, though primarily retail rather than OEM-focused.
• Pall Corporation (Danaher): Subsidiary of Danaher focused on filtration, separation, and purification for industrial, life sciences, and OEM applications. Overlaps with KX in industrial and specialty filtration media, though with a more lab/biotech emphasis.
• Eaton (Filtration Division): Diversified industrial manufacturer with a substantial filtration business serving hydraulic, industrial, and OEM customers. Comparable in OEM filtration media and component manufacturing at scale.
• 3M (Separation and Purification Sciences): Diversified conglomerate with a major filtration media business serving industrial, residential, and OEM customers. Overlaps with KX in carbon block and specialty filtration media, though it operates across a much broader product portfolio.

Direct peers

• Mann+Hummel: Privately-held global filtration specialist serving OEM customers in automotive, appliance, industrial, and water applications. Highly comparable as a custom OEM filtration media and component manufacturer with similar technical capabilities.
• Pentair: Global water treatment and filtration company with significant OEM and residential/business channels for carbon and specialty filtration media. Highly comparable business model and customer overlap in appliance and point-of-use segments.
• Donaldson Company: Manufacturer of filtration systems and replacement parts for industrial and OEM markets worldwide. Comparable in serving OEM customers with custom filtration solutions and operating globally with manufacturing scale.
• Culligan International: Global water treatment company offering POU, POE, and commercial filtration systems. Comparable in residential and commercial filtration product lines and the use of carbon block media.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/kx-technologies

Compliance4 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 KX Technologies