Pollution & Treatment Controls
Stocks Ranked by
Market Capitalization
| Name | Market cap | Price |
Price change % |
|
|---|---|---|---|---|
1
Veralto
VLTO
$23.3B
| $23.3B | $95.48 | 0.85% |
|
2
Zurn Elkay Water Solutions
ZWS
$7.66B
| $7.66B | $46.18 | 0.2% |
|
3
Ceco Environmental
CECO
$3.95B
| $3.95B | $67.46 | 4.54% |
|
4
PureCycle Technologies
PCT
$1.12B
| $1.12B | $5.58 | 4.62% |
|
|
ADUR
5
Aduro Clean Technologies
ADUR
$446M
| $446M | $12.49 | 3.25% |
|
6
Energy Recovery
ERII
$360M
| $360M | $7.06 | 0.42% |
|
7
Cadiz
CDZI
$297M
| $297M | $3.51 | 2.5% |
|
8
Arq
ARQ
$90.4M
| $90.4M | $2.07 | 3.27% |
|
9
Fuel Tech
FTEK
$59.6M
| $59.6M | $1.91 | 9.14% |
|
10
374Water
SCWO
$56.2M
| $56.2M | $3.17 | 2.26% |
|
11
ClearSign Technologies
CLIR
$27.5M
| $27.5M | $4.04 | 4.94% |
|
12
LiqTech
LIQT
$25M
| $25M | $0.7594 | 0.18% |
|
13
TOMI Environmental Solutions
TOMZ
$12.7M
| $12.7M | $1.56 | 1.27% |
|
14
Euro Tech Holdings
CLWT
$11.3M
| $11.3M | $1.53 | 3.16% |
|
|
RAIN
15
Rain Enhancement Technologies
RAIN
$8.43M
| $8.43M | $0.7204 | 0.08% |
|
Pollution & Treatment Controls Stocks at a Glance
Pollution and treatment control companies build filtration, emissions-control, waste-treatment, and recycling equipment. Environmental regulation drives demand — tightening standards create replacement and upgrade cycles largely independent of the economy.
There are 15 Pollution & Treatment Controls industry stocks tracked by Wall St. Rank, worth a combined $37.4B.
The largest by market cap are Veralto (VLTO) at $23.3B, Zurn Elkay Water Solutions (ZWS) at $7.66B and Ceco Environmental (CECO) at $3.95B.
Among institutional investors, Ceco Environmental (CECO) drew the most net new fund positions in Q2 2026: 105 funds opened new positions, taking total fund holders up 78 (29%) quarter-over-quarter.
- Combined market cap: $37.4B across 15 stocks.
- Largest constituent: Veralto (VLTO), $23.3B market cap.
- Most net new fund positions in Q2 2026: Ceco Environmental (CECO), +78 holders.
Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q2 2026.