Partner Engineering and Science Inc. is proud to be featured on the Engineering News-Record Top 200 Environmental Firms list for the sixth straight year. We are pleased to have moved up three spots from last year’s list to sit at #111. Partner is a leading provider of Phase I ESA reports and environmental due diligence services in commercial real estate.
ENR’s data indicated continued strength in the commercial real estate sector, with solid results and some strategic changes last year that pushed a number of Top 200 Environmental Firms higher on the 2018 list, including Partner.
Unfortunately, some uncertainty from geopolitical headwinds, along with regulatory and economic indicators, has injected caution into the environmental marketplace, with total list revenue falling 2% to $53.37 billion from the previous year’s tally. Despite a potential slowdown on the horizon, nearly three-quarters of this year’s listed firms retain a positive outlook for 2018 and ahead, with markets strengthening and projects on the move.
For the full list of top 200 environmental firms for 2018, click here.

July 02, 2026
Adrienne Perez, an Environmental Due Diligence Consultant, joins as Technical Director for Agency Services in Partner Engineering and Science's environmental service line.

June 23, 2026
For commercial real estate owners, developers, and investors, the program offers a more flexible and efficient path to address contamination, particularly at lower-priority sites enrolled in voluntary cleanup.

June 24, 2026
Amid evolving and often uncertain federal regulations, state environmental agencies have increasingly taken the lead in developing policies to address PFAS.




