Online

摘要

In the 2018 Top 200 Environmental Firms lists and analysis, "Firms Reach Out To Tap Markets" (ENR 8/6-13, p. 27), the facing column correctly displays the Top 10 list of companies reporting 2017 environmental services revenue for construction management-program management (CM-PM) and their chart rank in last year's Top 200 analysis. The list printed on p. 31 in the issue was incorrect. Also, Leslie Shoemaker, executive vice president of Tetra Tech, was incorrectly referred to on p. 32; on pp. 36-37, the correct base location for Top 200 listed firm Ensafe (No. 125) is Memphis, Tenn., and for S&ME Inc. (No. 162) is Raleigh, N.C. The largest proportion of Layne Christensen Co. revenue should be in construction, not CM-PM. Also, on the Top 200's 2017 rankings, Bechtel Corp. should be No. 4, Arcadis NV No. 12, and Tradebe Environmental Services No. 29.