In 2008, PMK Group (PMK), a recognized leader in the public and private sector providing energy, environmental engineering and consulting services since 1986, was acquired and became BSG’s fifth specialty engineering firm. PMK provided environmental engineering and remediation services for landfills and Brownfield sites throughout New Jersey, in addition to providing geotechnical engineering and waste management services. PMK was also a leader in providing energy and sustainable consulting services, which help their clients manage rising energy costs while also identifying energy alternatives.
For decades PMK was a trusted advisor, serving clients throughout the Northeast Corridor with high quality design and engineering excellence.
PMK was continually ranked as a leading firm in such publications as ENR (Engineering News Record), Zweig White, New York Construction News, and NJ Biz (Business News New Jersey). In addition, they also received numerous awards for excellence in structural, civil, environmental, and MEP engineering.
On June 21st, 2013, Partner Engineering and Science, Inc. (Partner) finalized the acquisition of most of the assets of Birdsall Services Group (BSG) as part of its planned growth and expansion in the tri-state area. The purchase includes BSG’s accounts receivable, physical assets, select contracts, existing project files, select intellectual property, and license agreements.
In order to most effectively answer your questions and provide information, please contact us at 732-945-4077 or [email protected].

May 20, 2026
The opportunity to preserve federal solar tax incentives for commercial real estate projects remains available, but the timeline to act is increasingly defined by near-term financial and construction milestones. For CRE owners evaluating rooftop solar across their portfolios, the 5% Safe Harbor pathway may provide the clearest opportunity to preserve flexibility while securing available tax benefits before current deadlines take effect. At the same time, projects capable of reaching Placed in Service status by the end of 2027 may remain viable in many markets.

April 27, 2026
In this article from Propmodo.com, Jerry Ostrander discusses a number of important factors to consider to help prevent environmental contamination concerns from becoming impenetrable roadblocks to development projects. Environmental challenges are a reality in many development projects.

April 23, 2026
An integrated, enterprise-level environmental strategy unifies environmental due diligence, remediation, environmental, health and safety (EHS), and compliance, energy and sustainability, and real estate support under one coordinated framework supported by building sciences expertise.




