Top 4 Small-Cap Stocks In The Pollution & Treatment Controls Industry With The Highest ROE

Below are the top small-cap pollution & treatment controls stocks on the NYSE and the NASDAQ in terms of return on equity. The trailing-twelve-month return on equity at Advanced Emissions Solutions

is 51.30%. Advanced Emissions Solutions' revenue for the same period is $269.30 million. The trailing-twelve-month return on equity at GreenHunter Resources

is 40.50%. GreenHunter Resources' gross margin for the same period is 39%. The trailing-twelve-month return on equity at Federal Signal

is 19.60%. Federal Signal's PEG ratio is 0.85. The trailing-twelve-month return on equity at Tennant Company

is 16.10%. Tennant's EPS for the same period is $2.25.