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Best Pollution & Treatment Control Stocks to Buy Now (2026)
Top pollution & treatment control stocks in 2026 ranked by overall Zen Rating. "A" Rated stocks have returned an average of +28.50% per year, and are the best pollution & treatment control stocks to buy now. Learn More.

Industry: Pollution & Treatment Con...
Overview
Zen RatingPriceValueGrowthFinancialsMomentumSentimentForecastDividendsDue Diligence
D
Pollution & Treatment Controls is Zen Rated D and is the 110th ranked industry out of 146 stock market industries
Learn how the Zen Ratings work
Ticker
Company
Exchange
Industry
Zen Rating
Market Cap
Price
1d %
EBITDA
P/E
D/E
Country
DD Score
ZWS
ZURN ELKAY WATER SOLUTIONS CORP
NYSE
Pollution & Treatment Controls
$7.80B$46.77-0.06%$394.60M37.12x0.67
United States
FSS
FEDERAL SIGNAL CORP
NYSE
Pollution & Treatment Controls
$7.13B$116.89-1.86%$458.30M26.21x0.71
United States
ATMU
ATMUS FILTRATION TECHNOLOGIES INC
NYSE
Pollution & Treatment Controls
$4.09B$50.031.03%$344.30M19.39x3.57
United States
CECO
CECO ENVIRONMENTAL CORP
NASDAQ
Pollution & Treatment Controls
$3.02B$84.326.02%$66.09M216.21x2.28
United States
VLTO
VERALTO CORP
NYSE
Pollution & Treatment Controls
$22.62B$92.100.39%$1.38B23.55x1.55
United States
BCHT
BIRCHTECH CORP
NYSEMKT
Pollution & Treatment Controls
$51.03M$1.94-5.37%-$2.20M-12.93x0.92
United States
ARQ
ARQ INC
NASDAQ
Pollution & Treatment Controls
$96.58M$2.251.81%-$39.08M-1.73x0.38
United States
FTEK
FUEL TECH INC
NASDAQ
Pollution & Treatment Controls
$52.67M$1.69-3.98%-$2.20M-18.78x0.15
United States
ERII
ENERGY RECOVERY INC
NASDAQ
Pollution & Treatment Controls
$460.30M$8.933.60%$28.36M23.50x0.13
United States
ADUR
ADURO CLEAN TECHNOLOGIES INC
NASDAQ
Pollution & Treatment Controls
$542.87M$16.143.33%-$12.69M-37.80x0.21
Canada
ZONE
CLEANCORE SOLUTIONS INC
NYSEMKT
Pollution & Treatment Controls
$166.45M$0.75-8.31%-$158.60M-0.46x0.12
United States
PCT
PURECYCLE TECHNOLOGIES INC
NASDAQ
Pollution & Treatment Controls
$1.35B$7.462.47%-$125.36M-5.57x76.59
United States
TOMZ
TOMI ENVIRONMENTAL SOLUTIONS INC
NASDAQ
Pollution & Treatment Controls
$17.32M$0.80-6.01%-$3.31M-3.80x13,566.67
United States
CLWT
EURO TECH HOLDINGS CO LTD
NASDAQ
Pollution & Treatment Controls
$12.66M$1.7012.58%$46.00k85.00x0.30
Hong Kong
CLIR
CLEARSIGN TECHNOLOGIES CORP
NASDAQ
Pollution & Treatment Controls
$20.30M$3.751.35%-$5.34M-3.47x0.29
United States
CHNR
CHINA NATURAL RESOURCES INC
NASDAQ
Pollution & Treatment Controls
$4.76M$3.791.47%-$180.29kN/A1.86
Hong Kong
SCWO
374WATER INC
NASDAQ
Pollution & Treatment Controls
$35.69M$2.045.15%-$20.87M-1.52x2.01
United States
LIQT
LIQTECH INTERNATIONAL INC
NASDAQ
Pollution & Treatment Controls
$7.34M$0.74-4.40%-$6.16M-0.80x2.28
Denmark
RAIN
RAIN ENHANCEMENT TECHNOLOGIES HOLDCO INC
NASDAQ
Pollution & Treatment Controls
$14.99M$1.83-4.69%-$9.10M-1.46x-1.18
United States
1

Pollution & Treatment Control Stocks FAQ

What are the best pollution & treatment control stocks to buy right now in Jul 2026?

According to Zen Ratings, our proprietary rating system that evaluates 115 factors proven to drive growth in stocks and assigns each stock in our system an overall letter grade as well as 7 individual Component Grades for Value, Growth, Momentum, Sentiment, Safety, Financials, and proprietary AI algorithms, the 3 best pollution & treatment control stocks to buy right now are:

1. Zurn Elkay Water Solutions (NYSE:ZWS)


Zurn Elkay Water Solutions (NYSE:ZWS) is the #1 top pollution & treatment control stock out of 19 with a Zen Rating of B. Stocks with a rating of B have had an average return of +17.17% per year. Learn more.

The Component Grade breakdown for Zurn Elkay Water Solutions (NYSE:ZWS) is: Value: C, Growth: C, Momentum: C, Sentiment: C, Safety: B, Financials: B, and AI: B.

Zurn Elkay Water Solutions (NYSE:ZWS) has a Due Diligence Score of 43, which is 14 points higher than the pollution & treatment control industry average of 29.

ZWS passed 16 out of 38 due diligence checks and has strong fundamentals. Zurn Elkay Water Solutions has seen its stock return 23.93% over the past year, overperforming other pollution & treatment control stocks by 11 percentage points.

Zurn Elkay Water Solutions has an average 1 year price target of $56.80, an upside of 21.45% from Zurn Elkay Water Solutions's current stock price of $46.77.

Zurn Elkay Water Solutions stock has a consensus Buy recommendation according to Wall Street analysts. Of the 5 analysts covering Zurn Elkay Water Solutions, 40% have issued a Strong Buy rating, 20% have issued a Buy, 40% have issued a hold, while 0% have issued a Sell rating, and 0% have issued a Strong Sell.

2. Federal Signal (NYSE:FSS)


Federal Signal (NYSE:FSS) is the #2 top pollution & treatment control stock out of 19 with a Zen Rating of B. Stocks with a rating of B have had an average return of +17.17% per year. Learn more.

The Component Grade breakdown for Federal Signal (NYSE:FSS) is: Value: C, Growth: C, Momentum: C, Sentiment: B, Safety: C, Financials: B, and AI: B.

Federal Signal (NYSE:FSS) has a Due Diligence Score of 56, which is 27 points higher than the pollution & treatment control industry average of 29.

FSS passed 21 out of 38 due diligence checks and has strong fundamentals. Federal Signal has seen its stock return 3.9% over the past year, underperforming other pollution & treatment control stocks by -9 percentage points.

Federal Signal has an average 1 year price target of $134.00, an upside of 14.64% from Federal Signal's current stock price of $116.89.

Federal Signal stock has a consensus Buy recommendation according to Wall Street analysts. Of the 3 analysts covering Federal Signal, 33.33% have issued a Strong Buy rating, 33.33% have issued a Buy, 33.33% have issued a hold, while 0% have issued a Sell rating, and 0% have issued a Strong Sell.

3. Atmus Filtration Technologies (NYSE:ATMU)


Atmus Filtration Technologies (NYSE:ATMU) is the #3 top pollution & treatment control stock out of 19 with a Zen Rating of C. Stocks with a rating of C have had an average return of +5.11% per year. Learn more.

The Component Grade breakdown for Atmus Filtration Technologies (NYSE:ATMU) is: Value: C, Growth: C, Momentum: C, Sentiment: C, Safety: C, Financials: B, and AI: B.

Atmus Filtration Technologies (NYSE:ATMU) has a Due Diligence Score of 41, which is 12 points higher than the pollution & treatment control industry average of 29.

ATMU passed 17 out of 38 due diligence checks and has strong fundamentals. Atmus Filtration Technologies has seen its stock return 29.28% over the past year, overperforming other pollution & treatment control stocks by 16 percentage points.

Atmus Filtration Technologies has an average 1 year price target of $62.67, an upside of 25.26% from Atmus Filtration Technologies's current stock price of $50.03.

Atmus Filtration Technologies stock has a consensus Buy recommendation according to Wall Street analysts. Of the 3 analysts covering Atmus Filtration Technologies, 33.33% have issued a Strong Buy rating, 33.33% have issued a Buy, 33.33% have issued a hold, while 0% have issued a Sell rating, and 0% have issued a Strong Sell.

What are the pollution & treatment control stocks with highest dividends?

Out of 4 pollution & treatment control stocks that have issued dividends in the past year, the 3 pollution & treatment control stocks with the highest dividend yields are:

1. Federal Signal (NYSE:FSS)


Federal Signal (NYSE:FSS) has an annual dividend yield of 0.5%, which is the same as the pollution & treatment control industry average of 0.46%. Federal Signal's dividend payout is stable, having never dropped by more than 10% in the last 10 years. Federal Signal's dividend has shown consistent growth over the last 10 years.

Federal Signal's dividend payout ratio of 12.8% indicates that its dividend yield is sustainable for the long-term.

2. Zurn Elkay Water Solutions (NYSE:ZWS)


Zurn Elkay Water Solutions (NYSE:ZWS) has an annual dividend yield of 0.47%, which is the same as the pollution & treatment control industry average of 0.46%. Zurn Elkay Water Solutions's dividend payout is not stable, having dropped more than 10% one times in the last 10 years. Zurn Elkay Water Solutions's dividend has shown consistent growth over the last 10 years.

Zurn Elkay Water Solutions's dividend payout ratio of 31.7% indicates that its dividend yield is sustainable for the long-term.

3. Atmus Filtration Technologies (NYSE:ATMU)


Atmus Filtration Technologies (NYSE:ATMU) has an annual dividend yield of 0.44%, which is the same as the pollution & treatment control industry average of 0.46%.

Atmus Filtration Technologies's dividend payout ratio of 8.3% indicates that its dividend yield is sustainable for the long-term.

Why are pollution & treatment control stocks up?

Pollution & treatment control stocks were up 1.01% in the last day, and down -3.29% over the last week. Ceco Environmental was the among the top gainers in the pollution & treatment controls industry, gaining 6.02% yesterday.

CECO Environmental shares are trading higher after JP Morgan initiated coverage on the stock with an Overweight rating and announced a $130 price target.

What are the most undervalued pollution & treatment control stocks?

Based on the Valuation rating, one of the 7 components of a stocks overall Zen Ratings grade, which evaluates factors including estimated earnings yield, earnings before interest and taxes/enterprise value, cash flow yield, free cash flow to price, and price-to-earnings growth (PEG ratio), the 3 most undervalued pollution & treatment control stocks right now are:

1. Veralto (NYSE:VLTO)


Veralto (NYSE:VLTO) is the most undervalued pollution & treatment control stock based on its Valuation Rating of C. Valuation is one of 7 Component Grades used to calculate the overall Zen Rating.

Veralto has a valuation score of 14, which is 2 points higher than the pollution & treatment control industry average of 12. It passed 1 out of 7 valuation due diligence checks.

Veralto's stock has dropped -10.03% in the past year. It has underperformed other stocks in the pollution & treatment control industry by -23 percentage points.

2. Atmus Filtration Technologies (NYSE:ATMU)


Atmus Filtration Technologies (NYSE:ATMU) is the second most undervalued pollution & treatment control stock based on its Valuation Rating of C. Valuation is one of 7 Component Grades used to calculate the overall Zen Rating.

Atmus Filtration Technologies has a valuation score of 14, which is 2 points higher than the pollution & treatment control industry average of 12. It passed 1 out of 7 valuation due diligence checks.

Atmus Filtration Technologies's stock has gained 29.28% in the past year. It has overperformed other stocks in the pollution & treatment control industry by 16 percentage points.

3. Zurn Elkay Water Solutions (NYSE:ZWS)


Zurn Elkay Water Solutions (NYSE:ZWS) is the third most undervalued pollution & treatment control stock based on its Valuation Rating of C. Valuation is one of 7 Component Grades used to calculate the overall Zen Rating.

Zurn Elkay Water Solutions has a valuation score of 14, which is 2 points higher than the pollution & treatment control industry average of 12. It passed 1 out of 7 valuation due diligence checks.

Zurn Elkay Water Solutions's stock has gained 23.93% in the past year. It has overperformed other stocks in the pollution & treatment control industry by 11 percentage points.

Are pollution & treatment control stocks a good buy now?

60% of pollution & treatment control stocks rated by analysts are a buy right now. On average, analysts expect pollution & treatment control stocks to rise by 28.3% over the next year.

0% of pollution & treatment control stocks have a Zen Rating of A (Strong Buy), 16.67% of pollution & treatment control stocks are rated B (Buy), 41.67% are rated C (Hold), 25% are rated D (Sell), and 16.67% are rated F (Strong Sell).

What is the average p/e ratio of the pollution & treatment controls industry?

The average P/E ratio of the pollution & treatment controls industry is 36.3x.
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