Partner Engineering and Science (Partner ESI) vs SiteCompli

National Phase I/II ESA, PCA, zoning compliance, and seismic due diligence provider — rated #1 environmental due diligence provider in the US

Buyer: lenders, investors, and acquirers needing environmental and property condition due diligence reports -- Phase I/II ESAs, PCAs, seismic -- for an active transaction, especially where speed and defensibility matter for closing. Strength: a top-rated national provider in a fragmented, quality-variable industry, which meaningfully lowers the risk of a bad diligence report. Caveat: this is a services firm, not software -- pricing is quoted deal-by-deal, so build lead time into your due diligence timeline rather than expecting instant turnaround.

NYC building compliance monitoring — scans DOB/FDNY/HPD/DEP/DOT databases and alerts on new violations

Buyer: NYC landlords, property managers, and compliance teams needing automated violation alerts across the city's fragmented regulatory agencies (DOB, FDNY, HPD, DEP, DOT) rather than manually checking each database. Strength: single-city depth means genuinely deep coverage of NYC's uniquely complex compliance landscape that a national tool couldn't replicate. Caveat: NYC-only, with zero relevance outside that market, and now part of Inhabit -- confirm integration and roadmap continuity with your rep.