FSL Associates Inc. began in 1983, engineering solutions for high-tech electronic communications and real estate development. Our time spent in real estate led us to environmental consulting, helping developers and lenders meet regulatory requirements, with no mistakes and at the lowest possible cost.


Our engineers are industry experts, interpreting local, state, and federal laws and bringing sites into compliance quickly and efficiently. We work in many different areas, with hundreds of successfully completed projects across New England, the east coast, and Midwest.


In addition to Phase 1 Environmental Site Assessments, FSL offers comprehensive services in environmental, civil, and forensic engineering.

What our customers say

Carl Valeri, President, The Hamilton Company, Boston, MA 02134

FSL Associates, Inc. is by far the most competent, responsive and resourceful environmental engineers I have come across in my 30 years in the real estate industry. Unlike nearly every other firm that finds a way to extend a problem, FSL finds the most proactive and practical resolution to the condition at hand. It should not come as a surprise that both lenders and borrowers seek advice and consultation from this firm.