AEI Consultants vs EBI Consulting

Building assessments — Phase I ESA, PCA, and related environmental/engineering due diligence

This is for acquisition teams and lenders who need a Phase I ESA or PCA report attached to a closing binder, not software to buy. AEI is a well-established, insurance-and-lender-accepted environmental/engineering firm, which matters when a bank's due diligence checklist specifies who can sign the report. It's not a platform play — pricing is deal-by-deal and turnaround depends on their local coverage and inspector availability, so it's not the right fit if you need instant, self-serve reports at portfolio scale.

Environmental and engineering due diligence — Phase I/II ESA, PCA — founded 1989, top-3 US CRE due diligence provider

A go-to for lenders and acquirers who need Phase I/II ESA or PCA reports from a top-3, decades-established provider — founded 1989, with the track record that lender due diligence checklists often implicitly expect. Like AEI, this is a professional services relationship, not software, so evaluate on local coverage, turnaround time, and report quality rather than platform features; pricing is deal-by-deal and not something you'll find published.