Water Treatment

Nanofiltration and nanomaterials for water purification

79 companies 15 countries
N

NanoH2O (LG Chem)

El Segundo, United States

Developer of nanotechnology-enabled reverse osmosis membranes for water desalination

P

Porifera

Hayward, United States

Developer of forward osmosis membranes using carbon nanotube and graphene oxide

L

LiqTech International

Ballerup, Denmark

Producer of ceramic silicon carbide membranes and diesel particulate filters

NASDAQ: LIQT
N

NanOasis

San Leandro, United States

Developer of carbon nanotube-based water filtration membranes

A

Aquaporin A/S

Kongens Lyngby, Denmark

Pioneer in biomimetic water filtration using aquaporin proteins

NASDAQ Copenhagen: AQP public
A

Aqua-Pure Ventures

Minneapolis, United States

Nanofiltration membranes for water treatment

N

Nanostone Water

Oceanside, United States

Ceramic ultrafiltration membranes with nano-pores

L

LiqTech International

Ballerup, Denmark

Silicon carbide ceramic membranes for filtration

NYSE: LIQT public
W

Weinberg Nano

Tel Aviv, Israel

Nano-enhanced water filtration

C

Cabot Norit

Amersfoort, Netherlands

Activated carbon and purification materials

K

Kuraray Carbon

Osaka, Japan

Activated carbon for supercapacitors and water treatment

TSE: 3405 public
L

LANXESS

Cologne, Germany

Specialty chemicals and advanced intermediates

XETRA: LXS public
N

Nippon Shokubai

Osaka, Japan

Superabsorbent polymers and catalyst technologies

TSE: 4114 public
I

IDE Technologies

Kadima, Israel

Desalination technology company with advanced membrane systems

D

Dupont Water Solutions

Wilmington, United States

Water treatment membranes including nano-enhanced reverse osmosis systems

NYSE: DD public
T

Toray Membrane

Tokyo, Japan

Membrane technology for water treatment including RO and UF systems

TSE: 3402 public
K

Koch Separation Solutions

Wilmington, United States

Membrane filtration systems including nano-enhanced hollow fiber membranes

P

Pall Corporation

Port Washington, United States

Filtration and separation technology with nano-scale membrane systems

NYSE: DHR public
M

Merck Millipore

Darmstadt, Germany

Lab filtration and bioprocessing with nanopore membrane technology

XETRA: MRK public
H

Hydranautics (Nitto)

Oceanside, United States

Reverse osmosis and nanofiltration membranes for desalination

TSE: 6988 public
E

Evoqua Water Technologies

Pittsburgh, United States

Water treatment solutions including membrane filtration systems

X

Xylem

Washington DC, United States

Water technology company with membrane filtration and treatment solutions

NYSE: XYL public
V

Veolia Water Technologies

Paris, France

Global water treatment with membrane bioreactor and nanofiltration systems

Euronext Paris: VIE public
S

SUEZ Water Technologies

Paris, France

Water treatment technologies including advanced membrane systems

Euronext Paris: VIE public
P

Pentair

London, United Kingdom

Water solutions with membrane filtration for residential and commercial markets

NYSE: PNR public
A

A.O. Smith

Milwaukee, United States

Water technology with reverse osmosis and filtration systems

NYSE: AOS public
3

3M Purification

Saint Paul, United States

Filtration and purification products including nano-enhanced membranes

NYSE: MMM public
M

MANN+HUMMEL

Ludwigsburg, Germany

Filtration solutions with nanofiber technology for automotive and industrial

F

Freudenberg Filtration Technologies

Weinheim, Germany

Air filtration with nanofiber and electrostatic media technologies

N

NaBond Technologies

Shenzhen, China

Electrospinning equipment and nanofiber materials manufacturer

Q

Qatar Environment and Energy Research Institute

Doha, Qatar

Research institute for sustainable energy and water technologies using nanomaterials

research
E

Egypt Nanotechnology Center

Cairo, Egypt

National nanotechnology center for energy and water applications

research
I

Innosep

Hefei, China

Chinese ceramic membrane manufacturer for water treatment

C

Chart Industries

Ball Ground, United States

Cryogenic equipment for hydrogen liquefaction, storage, and distribution

NYSE: GTLS public
T

Toray Advanced Materials

Tokyo, Japan

Advanced materials company leading in carbon fiber and high-performance materials

TSE: 3402 public
F

Fresenius Medical Care

Bad Homburg, Germany

World's leading provider of products and services for dialysis patients

XETRA: FME public
V

Veolia Environment

Paris, France

Global leader in optimized resource management for water, waste, and energy

EPA: VIE public
X

Xylem Inc

Washington, United States

Global water technology company solving critical water and infrastructure challenges

NYSE: XYL public
E

Evoqua Water Technologies

Pittsburgh, United States

Water treatment company providing solutions for industrial and municipal water

S

SUEZ Water Technologies

Paris, France

Environmental services company providing water and waste management

E

Ecolab

St. Paul, United States

Global leader in water, hygiene, and infection prevention solutions

NYSE: ECL public
D

Donaldson Company

Bloomington, United States

Global filtration company providing industrial and engine filtration

NYSE: DCI public
R

Republic Services

Phoenix, United States

Environmental services company providing waste and recycling solutions

NYSE: RSG public
W

Waste Management

Houston, United States

North America's largest environmental solutions provider

NYSE: WM public
C

Clean Harbors

Norwell, United States

Environmental and industrial services company for hazardous waste

NYSE: CLH public
S

Stericycle

Bannockburn, United States

Compliance company providing medical waste and secure information destruction

NASDAQ: SRCL public
W

Waste Connections

Woodbridge, Canada

Solid waste services company providing collection and disposal

NYSE: WCN public
T

Tetra Tech

Pasadena, United States

Consulting and engineering company for water, environment, and infrastructure

NASDAQ: TTEK public
A

Arcadis

Amsterdam, Netherlands

Global design and consultancy for natural and built assets

AMS: ARCAD public
W

WSP Global

Montreal, Canada

Professional services firm providing engineering and environmental consulting

TSX: WSP public
J

Jacobs Solutions

Dallas, United States

Technology-forward solutions company for a more connected world

NYSE: J public
M

Montrose Environmental

North Little Rock, United States

Environmental services company providing measurement and remediation

NYSE: MEG public
G

Gotham Greens

Brooklyn, United States

Urban greenhouse company operating rooftop and indoor farms

I

Infarm

Berlin, Germany

Distributed vertical farming company with modular farming units in retail

M

Martin Marietta

Raleigh, United States

Building materials company supplying aggregates and heavy building materials

NYSE: MLM public
J

Jacobs Solutions

Dallas, United States

Technology-forward solutions company for infrastructure and sustainability

NYSE: J public
S

Stantec

Edmonton, Canada

Design and consulting firm for infrastructure and sustainability projects

TSX: STN public
N

Newmont Corporation

Denver, United States

World's leading gold mining company with operations globally

NYSE: NEM public
A

Albemarle Corporation

Charlotte, United States

Specialty chemicals company and world's largest lithium producer

NYSE: ALB public
V

Veolia

Paris, France

Global environmental services company for water, waste, and energy management

EPA: VIE public
B

BrightFarms

Irvington, United States

Greenhouse company growing local produce near retailers

W

Wyndham Hotels

Parsippany, United States

World's largest hotel franchising company

NYSE: WH public
C

Carnival Corporation

Miami, United States

World's largest cruise company with multiple brands

NYSE: CCL public
R

Royal Caribbean Group

Miami, United States

Global cruise company with iconic mega-ships

NYSE: RCL public
O

ONE (Ocean Network Express)

Tokyo, Japan

Container shipping joint venture

A

Atarraya

San Antonio, United States

Indoor shrimp farming technology

N

Nanoscale Components

Manhattan, United States

Reactive nanoparticles for environmental remediation

N

NanoVation

Saarbrücken, Germany

Ceramic nanofiltration membranes

M

Moleaer

Torrance, United States

Industrial-scale nanobubble systems that improve water quality and operational efficiency

A

Aavalor

London, United Kingdom

Graphene membrane nanofiltration for water purification

N

NanoScale Corporation

Manhattan, United States

Nanoscale materials for catalysis and environmental remediation

N

NematiQ

Melbourne, Australia

Graphene nanofiltration membranes for water purification

A

Active Membranes

Los Angeles, United States

Advanced membrane technology for desalination and water treatment

I

Inosep

Seoul, South Korea

Polymer nanofiltration membranes for water treatment and desalination

A

Atera Water

San Diego, United States

CLARITY nanocomposite membranes for sustainable water purification

P

Peore

Delhi, India

Nanofiltration water purifiers with 0.001 micron membranes

Z

ZwitterCo

Cambridge, United States

Zwitterionic membrane technology for industrial water treatment

C

Cerahelix

Orono, United States

DNA-templated ceramic nanofiltration membranes

N

NanoH2O

El Segundo, United States

Thin-film nanocomposite membranes for desalination