Nova Group, GBC Strengthens its Presence on the West Coast with the Acquisition of AES Due Diligence
- Apr 2
- 2 min read
Acquisition adds a highly respected West Coast due diligence team with deep California roots and strengths in Phase I ESAs, PCAs, and Seismic / PML services

Nova Group, GBC (Nova) is pleased to announce the acquisition of AES Due Diligence, a highly respected environmental and property due diligence firm with a strong footprint across the West Coast and particularly deep roots in California.
AES Due Diligence has built an outstanding reputation supporting many of the largest and most sophisticated commercial real estate lenders in the country. Their core services include a high volume of ASTM Phase I Environmental Site Assessments (ESAs), Property Condition Assessments (PCAs), and Seismic / Probable Maximum Loss (PML) evaluations across the West Coast, with a particular concentration in California.
This acquisition meaningfully accelerates Nova Group’s West Coast strategy by expanding regional presence, deepening technical capabilities, and strengthening relationships with leading real estate clients. AES’s commitment to technical quality, responsiveness, and long-standing client relationships closely aligns with Nova Group’s values and service approach.
Nova Group also extends its sincere appreciation to Bob Presta, founder and owner of AES Due Diligence, for building an exceptional firm and for the leadership and trust demonstrated throughout the transition. Under Bob’s leadership, AES has grown into a firm recognized for excellence and reliability in the due diligence space, and Nova is grateful to welcome the AES team as part of the organization.
“We’re excited to have the AES team join us as we continue building momentum together,” said Jack Cummings, Chief Executive Officer of Nova Group, GBC. “This acquisition strengthens our ability to serve clients across the West Coast while building something even stronger together.”
The combined organizations will continue delivering trusted real estate due diligence services while expanding opportunities for collaboration, growth, and innovation across markets.
Please join us in welcoming the AES Due Diligence team to the Nova Group, GBC Family.
About Nova Group, GBC

Nova Group, GBC, is one of the largest global providers of environmental, engineering, construction, and sustainability due diligence services. Nova supports investors, lenders, and owner-operators with best-in-class property and portfolio-level assessments, technical advisory, and sustainability strategies.
For more information, visit: www.novagroupgbc.com
About AES Due Diligence

AES Due Diligence provides commercial real estate due diligence services and prepares reports that conform to current ASTM and industry standards. Their service categories include Architectural / Engineering due diligence (such as ESAs, PCAs, ADA compliance surveys, and report reviews), Environmental Engineering/Construction, and Seismic services.
For more information, visit: https://aesdd.net/
For media inquiries, please contact:
Tim Doolittle | Vice President, Acquisitions & Talent
Scott Williams | Vice President, Account Manager






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