Sectors & Industries IndustrialsPollution & Treatment Controls
Best Pollution & Treatment Control Stocks to Buy Now (2025)
Top pollution & treatment control stocks in 2025 ranked by overall Zen Rating. "A" Rated stocks have returned an average of +32.52% per year, and are the best pollution & treatment control stocks to buy now. Learn More.

Industry: Pollution & Treatment Con...

Zen Rating Price Value Growth Financials Momentum Sentiment Forecast Dividends Due Diligence

Pollution & Treatment Controls is Zen Rated B and is the 51st ranked industry out of 145 stock market industries

Ticker	Company	Exchange	Industry	Market Cap	Price	1d %	EBITDA	P/E	D/E	Country
ZWS	ZURN ELKAY WATER SOLUTIONS CORP	NYSE	Pollution & Treatment Controls	$6.36B	$37.79	-1.00%	$344.70M	38.17x	0.69	United States
FTEK	FUEL TECH INC	NASDAQ	Pollution & Treatment Controls	$80.02M	$2.60	-4.06%	-$2.36M	-28.89x	0.13	United States
ATMU	ATMUS FILTRATION TECHNOLOGIES INC	NYSE	Pollution & Treatment Controls	$3.12B	$37.79	-3.10%	$298.40M	17.02x	3.63	United States
VLTO	VERALTO CORP	NYSE	Pollution & Treatment Controls	$25.26B	$101.93	-1.16%	$1.31B	28.79x	1.88	United States
CECO	CECO ENVIRONMENTAL CORP	NASDAQ	Pollution & Treatment Controls	$1.08B	$30.66	-0.33%	$100.60M	22.54x	2.33	United States
FSS	FEDERAL SIGNAL CORP	NYSE	Pollution & Treatment Controls	$6.71B	$110.12	-2.62%	$355.90M	31.83x	0.56	United States
ARQ	ARQ INC	NASDAQ	Pollution & Treatment Controls	$241.87M	$5.73	-0.69%	$10.60M	-114.60x	0.30	United States
ERII	ENERGY RECOVERY INC	NASDAQ	Pollution & Treatment Controls	$717.21M	$13.16	-1.64%	$29.58M	35.57x	0.14	United States
PCT	PURECYCLE TECHNOLOGIES INC	NASDAQ	Pollution & Treatment Controls	$2.74B	$15.25	-1.36%	-$104.76M	-13.03x	2.31	United States
ADUR	ADURO CLEAN TECHNOLOGIES INC	NASDAQ	Pollution & Treatment Controls	$261.05M	$9.03	0.78%	N/A	N/A	0.08	Canada
ZONE	CLEANCORE SOLUTIONS INC	NYSEMKT	Pollution & Treatment Controls	$22.05M	$2.60	-0.76%	-$3.22M	-5.53x	2.88	United States
CHNR	CHINA NATURAL RESOURCES INC	NASDAQ	Pollution & Treatment Controls	$3.94M	$3.76	1.62%	-$391.45k	-10.33x	1.96	Hong Kong
CLWT	EURO TECH HOLDINGS CO LTD	NASDAQ	Pollution & Treatment Controls	$8.80M	$1.14	-0.87%	$953.00k	11.40x	0.26	Hong Kong
DEVS	DEVVSTREAM CORP	NASDAQ	Pollution & Treatment Controls	$11.34M	$0.34	-0.29%	N/A	N/A	-1.16	Canada
LIQT	LIQTECH INTERNATIONAL INC	NASDAQ	Pollution & Treatment Controls	$17.31M	$1.80	-1.64%	-$7.55M	-1.22x	1.16	Denmark
TOMZ	TOMI ENVIRONMENTAL SOLUTIONS INC	NASDAQ	Pollution & Treatment Controls	$20.22M	$1.01	0.50%	-$2.56M	-5.94x	1.59	United States
SCWO	374WATER INC	NASDAQ	Pollution & Treatment Controls	$27.49M	$0.19	-5.94%	-$13.68M	-1.90x	0.27	United States
CLIR	CLEARSIGN TECHNOLOGIES CORP	NASDAQ	Pollution & Treatment Controls	$28.31M	$0.54	-1.82%	-$6.07M	-4.50x	0.21	United States

Pollution & Treatment Control Stocks FAQ

What are the best pollution & treatment control stocks to buy right now in Jul 2025?

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 18 with a Zen Rating of B. Stocks with a rating of B have had an average return of +19.88% 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: C.

Zurn Elkay Water Solutions (NYSE:ZWS) has a Due Diligence Score of 38, which is 9 points higher than the pollution & treatment control industry average of 29.

ZWS passed 14 out of 38 due diligence checks and has average fundamentals. Zurn Elkay Water Solutions has seen its stock return 25.97% over the past year, overperforming other pollution & treatment control stocks by 14 percentage points.

Zurn Elkay Water Solutions has an average 1 year price target of $37.33, a downside of -1.21% from Zurn Elkay Water Solutions's current stock price of $37.79.

Zurn Elkay Water Solutions stock has a consensus Buy recommendation according to Wall Street analysts. Of the 3 analysts covering Zurn Elkay Water Solutions, 33.33% have issued a Strong Buy rating, 0% have issued a Buy, 66.67% have issued a hold, while 0% have issued a Sell rating, and 0% have issued a Strong Sell.

2. Fuel Tech (NASDAQ:FTEK)

Fuel Tech (NASDAQ:FTEK) is the #2 top pollution & treatment control stock out of 18 with a Zen Rating of C. Stocks with a rating of C have had an average return of +7.53% per year. Learn more.

The Component Grade breakdown for Fuel Tech (NASDAQ:FTEK) is: Value: C, Growth: B, Momentum: B, Sentiment: C, Safety: C, Financials: C, and AI: C.

Fuel Tech (NASDAQ:FTEK) has a Due Diligence Score of 33, which is 4 points higher than the pollution & treatment control industry average of 29.

FTEK passed 10 out of 33 due diligence checks and has average fundamentals. Fuel Tech has seen its stock return 147.62% over the past year, overperforming other pollution & treatment control stocks by 135 percentage points.

Fuel Tech has an average 1 year price target of $4.00, an upside of 53.85% from Fuel Tech's current stock price of $2.60.

Fuel Tech stock has a consensus Buy recommendation according to Wall Street analysts. Of the 1 analyst covering Fuel Tech, 0% have issued a Strong Buy rating, 100% have issued a Buy, 0% 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 18 with a Zen Rating of C. Stocks with a rating of C have had an average return of +7.53% per year. Learn more.

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

Atmus Filtration Technologies (NYSE:ATMU) has a Due Diligence Score of 39, which is 10 points higher than the pollution & treatment control industry average of 29.

ATMU passed 15 out of 38 due diligence checks and has average fundamentals. Atmus Filtration Technologies has seen its stock return 29.6% over the past year, overperforming other pollution & treatment control stocks by 17 percentage points.

Atmus Filtration Technologies has an average 1 year price target of $41.00, an upside of 8.49% from Atmus Filtration Technologies's current stock price of $37.79.

Atmus Filtration Technologies stock has a consensus Buy recommendation according to Wall Street analysts. Of the 4 analysts covering Atmus Filtration Technologies, 25% have issued a Strong Buy rating, 25% have issued a Buy, 50% 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 5 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. Euro Tech Holdings Co (NASDAQ:CLWT)

Euro Tech Holdings Co (NASDAQ:CLWT) has an annual dividend yield of N/A, which is N/A percentage points lower than the pollution & treatment control industry average of 0.44%.

Euro Tech Holdings Co's dividend payout ratio of 80% 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 0.93%, which is the same as the pollution & treatment control industry average of 0.44%. 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 34.3% indicates that its dividend yield is sustainable for the long-term.

3. Federal Signal (NYSE:FSS)

Federal Signal (NYSE:FSS) has an annual dividend yield of 0.47%, which is the same as the pollution & treatment control industry average of 0.44%. 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 14.5% indicates that its dividend yield is sustainable for the long-term.

Why are pollution & treatment control stocks down?

Pollution & treatment control stocks were down -1.67% in the last day, and up 0.22% over the last week. Federal Signal was the among the top losers in the pollution & treatment controls industry, dropping -2.62% yesterday.

Federal Signal shares are trading lower after KeyBanc downgraded the stock from Overweight to Sector Weight.

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. Atmus Filtration Technologies (NYSE:ATMU)

Atmus Filtration Technologies (NYSE:ATMU) 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.

Atmus Filtration Technologies has a valuation score of 29, which is 13 points higher than the pollution & treatment control industry average of 16. It passed 2 out of 7 valuation due diligence checks.

Atmus Filtration Technologies's stock has gained 29.6% in the past year. It has overperformed other stocks in the pollution & treatment control industry by 17 percentage points.

2. Energy Recovery (NASDAQ:ERII)

Energy Recovery (NASDAQ:ERII) 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.

Energy Recovery has a valuation score of 29, which is 13 points higher than the pollution & treatment control industry average of 16. It passed 2 out of 7 valuation due diligence checks.

Energy Recovery's stock has dropped -8.04% in the past year. It has underperformed other stocks in the pollution & treatment control industry by -20 percentage points.

3. Veralto (NYSE:VLTO)

Veralto (NYSE:VLTO) 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.

Veralto has a valuation score of 14, which is -2 points higher than the pollution & treatment control industry average of 16. It passed 1 out of 7 valuation due diligence checks.

Veralto's stock has gained 4.97% in the past year. It has underperformed other stocks in the pollution & treatment control industry by -7 percentage points.

Are pollution & treatment control stocks a good buy now?

69.23% of pollution & treatment control stocks rated by analysts are a buy right now. On average, analysts expect pollution & treatment control stocks to rise by 14.75% over the next year.

0% of pollution & treatment control stocks have a Zen Rating of A (Strong Buy), 10% of pollution & treatment control stocks are rated B (Buy), 80% are rated C (Hold), 0% are rated D (Sell), and 10% 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 26.13x.

WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.