OAK BROOK, Ill., April 30, 2024 /PRNewswire/ -- Federal Signal Corporation (NYSE:FSS) (the "Company"), a leader in environmental and safety solutions, today reported results for the first quarter ended March 31, 2024. First Quarter Highlights Net sales of $425 million, up $39 million, or 10%, from last year; organic growth of $28 million, or 7% Operating income of $54.3 million, up $14.8 million, or 37%, from last year GAAP EPS of $0.84, up $0.39, or 87%, from last year Adjusted EPS of $0.64, up $0.18, or ...