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...

Financials Momentum Sentiment Forecast Dividends Due Diligence

Pollution & Treatment Controls is Zen Rated B and is the 50th ranked industry out of 145 stock market industries

Ticker	Company	Market Cap	Revenue	EBITDA	Earnings	EPS	Rev. Y/Y	Rev. 5Y	Earn. Y/Y	Earn. 5Y	Earnings Date
ATMU	ATMUS FILTRATION TECHNOLOGIES INC	$4.30B	$1.72B	$319.90M	$199.50M	$2.42	3.72%	N/A	11.52%	N/A
ZWS	ZURN ELKAY WATER SOLUTIONS CORP	$7.89B	$1.66B	$369.70M	$192.30M	$1.13	6.88%	-3.48%	41.25%	-2.91%	2026-02-10
FSS	FEDERAL SIGNAL CORP	$6.74B	$2.06B	$397.70M	$235.80M	$3.88	11.83%	12.31%	11.17%	18.51%
FTEK	FUEL TECH INC	$53.45M	$24.71M	-$2.25M	-$3.01M	-$0.09	-5.66%	3.07%	N/A	N/A
CECO	CECO ENVIRONMENTAL CORP	$2.17B	$718.25M	$118.68M	$51.87M	$1.48	29.86%	17.37%	335.29%	28.65%
VLTO	VERALTO CORP	$24.51B	$5.45B	$1.34B	$913.00M	$3.68	6.15%	N/A	12.20%	N/A	2026-02-03
ERII	ENERGY RECOVERY INC	$766.51M	$135.19M	$28.02M	$19.52M	$0.34	0.10%	3.82%	-2.86%	-3.20%
ADUR	ADURO CLEAN TECHNOLOGIES INC	$396.41M	$157.65k	-$11.03M	-$11.43M	-$0.39	-34.87%	N/A	N/A	N/A
ARQ	ARQ INC	$143.02M	$117.95M	$9.55M	-$3.92M	-$0.10	7.20%	14.76%	N/A	N/A
PCT	PURECYCLE TECHNOLOGIES INC	$1.58B	$5.66M	-$130.58M	-$228.46M	-$1.34	N/A	N/A	N/A	N/A
ZONE	CLEANCORE SOLUTIONS INC	$63.61M	$2.61M	-$18.55M	-$19.25M	-$1.17	58.90%	N/A	N/A	N/A
DEVS	DEVVSTREAM CORP	$6.45M	$25.79k	-$11.75M	-$12.07M	-$4.79	N/A	N/A	N/A	N/A
TOMZ	TOMI ENVIRONMENTAL SOLUTIONS INC	$16.18M	$5.69M	-$4.30M	-$5.20M	-$0.25	-30.61%	-24.53%	N/A	N/A
SCWO	374WATER INC	$47.05M	$1.91M	-$16.59M	-$17.40M	-$0.12	508.52%	97.38%	N/A	N/A
CLWT	EURO TECH HOLDINGS CO LTD	$9.49M	$15.38M	$953.00k	$734.00k	$0.10	-14.25%	-2.43%	-58.33%	N/A	2025-12-17
CLIR	CLEARSIGN TECHNOLOGIES CORP	$34.89M	$2.15M	-$6.07M	-$6.35M	-$0.12	-49.70%	N/A	N/A	N/A
LIQT	LIQTECH INTERNATIONAL INC	$19.06M	$16.79M	-$6.31M	-$8.94M	-$1.00	10.97%	-7.44%	N/A	N/A
CHNR	CHINA NATURAL RESOURCES INC	$4.29M	$0.00	-$391.45k	-$435.86k	-$0.36	N/A	-100.00%	N/A	N/A	2025-12-29
RAIN	RAIN ENHANCEMENT TECHNOLOGIES HOLDCO INC	$32.42M	$0.00	-$5.55M	-$5.81M	$2.01k	N/A	N/A	N/A	N/A

Pollution & Treatment Control Stocks FAQ

What are the best pollution & treatment control stocks to buy right now in Dec 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. Atmus Filtration Technologies (NYSE:ATMU)

Atmus Filtration Technologies (NYSE:ATMU) is the #1 top pollution & treatment control stock out of 19 with a Zen Rating of A. Stocks with a rating of A have had an average return of +32.52% per year. Learn more.

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

Atmus Filtration Technologies (NYSE:ATMU) has a Due Diligence Score of 41, which is 13 points higher than the pollution & treatment control industry average of 28.

ATMU passed 16 out of 38 due diligence checks and has strong fundamentals. Atmus Filtration Technologies has seen its stock return 28.52% over the past year, overperforming other pollution & treatment control stocks by 18 percentage points.

Atmus Filtration Technologies has an average 1 year price target of $52.33, a downside of -0.75% from Atmus Filtration Technologies's current stock price of $52.73.

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.

2. Zurn Elkay Water Solutions (NYSE:ZWS)

Zurn Elkay Water Solutions (NYSE:ZWS) 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 +19.88% per year. Learn more.

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

Zurn Elkay Water Solutions (NYSE:ZWS) has a Due Diligence Score of 35, which is 7 points higher than the pollution & treatment control industry average of 28.

ZWS passed 14 out of 38 due diligence checks and has average fundamentals. Zurn Elkay Water Solutions has seen its stock return 17.82% over the past year, overperforming other pollution & treatment control stocks by 8 percentage points.

Zurn Elkay Water Solutions has an average 1 year price target of $54.33, an upside of 15.26% from Zurn Elkay Water Solutions's current stock price of $47.14.

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

3. Federal Signal (NYSE:FSS)

Federal Signal (NYSE:FSS) is the #3 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 +19.88% per year. Learn more.

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

Federal Signal (NYSE:FSS) has a Due Diligence Score of 49, which is 21 points higher than the pollution & treatment control industry average of 28.

FSS passed 18 out of 38 due diligence checks and has strong fundamentals. Federal Signal has seen its stock return 13.87% over the past year, overperforming other pollution & treatment control stocks by 4 percentage points.

Federal Signal has an average 1 year price target of $127.33, an upside of 14.89% from Federal Signal's current stock price of $110.83.

Federal Signal stock has a consensus Hold recommendation according to Wall Street analysts. Of the 3 analysts covering Federal Signal, 0% have issued a Strong Buy rating, 33.33% have issued a Buy, 66.67% 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 2 pollution & treatment control stocks that have issued dividends in the past year, the 2 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 0.51%, which is the same as the pollution & treatment control industry average of 0.35%. 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 13.9% indicates that its dividend yield is sustainable for the long-term.

2. Atmus Filtration Technologies (NYSE:ATMU)

Atmus Filtration Technologies (NYSE:ATMU) has an annual dividend yield of 0.29%, which is the same as the pollution & treatment control industry average of 0.35%.

Atmus Filtration Technologies's dividend payout ratio of 6.4% indicates that its dividend yield is sustainable for the long-term.

Why are pollution & treatment control stocks down?

Pollution & treatment control stocks were down -1.07% in the last day, and up 0.39% over the last week. Aduro Clean Technologies was the among the top losers in the pollution & treatment controls industry, dropping -7.33% yesterday.

Shares of companies within the broader technology sector are trading lower amid weakness in Broadcom after it issued cautious outlook. The sector is also being weighed down by reports that Oracle delayed some data center projects for OpenAI.

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. Energy Recovery (NASDAQ:ERII)

Energy Recovery (NASDAQ:ERII) 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.

Energy Recovery has a valuation score of 43, which is 24 points higher than the pollution & treatment control industry average of 19. It passed 3 out of 7 valuation due diligence checks.

Energy Recovery's stock has dropped -11.88% in the past year. It has underperformed other stocks in the pollution & treatment control industry by -22 percentage points.

2. Veralto (NYSE:VLTO)

Veralto (NYSE:VLTO) 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.

Veralto has a valuation score of 29, which is 10 points higher than the pollution & treatment control industry average of 19. It passed 2 out of 7 valuation due diligence checks.

Veralto's stock has dropped -6.69% in the past year. It has underperformed other stocks in the pollution & treatment control industry by -17 percentage points.

3. Atmus Filtration Technologies (NYSE:ATMU)

Atmus Filtration Technologies (NYSE:ATMU) 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.

Atmus Filtration Technologies has a valuation score of 29, which is 10 points higher than the pollution & treatment control industry average of 19. It passed 2 out of 7 valuation due diligence checks.

Atmus Filtration Technologies's stock has gained 28.52% in the past year. It has overperformed other stocks in the pollution & treatment control industry by 18 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 19.65% over the next year.

10% of pollution & treatment control stocks have a Zen Rating of A (Strong Buy), 30% of pollution & treatment control stocks are rated B (Buy), 30% are rated C (Hold), 0% are rated D (Sell), and 30% 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 27.99x.

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.