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

Below are the top small-cap pollution & treatment controls stocks on the NYSE and the NASDAQ in terms of operating margin.

The trailing-twelve-month operating margin at Calgon Carbon Corporation (NYSE: CCC) is 13.50%. Calgon Carbon's PEG ratio is 3.25.

The trailing-twelve-month operating margin at Federal Signal Corp. (NYSE: FSS) is 10.10%. Federal Signal's EPS for the same period is $1.00.

The trailing-twelve-month operating margin at CECO Environmental Corp. (NASDAQ: CECE) is 8.80%. CECO Environmental's revenue for the same period is $263.20 million.

The trailing-twelve-month operating margin at Tennant Company (NYSE: TNC) is 8.80%. Tennant's EPS growth forecast for the next year is 24.78%.