Blackstone’s Offices Throughout the Country

Our Insight. Your Success.

Co-founded by Sean T. Dundon and Stephen E. Manelis in 2001, our team today consists of over 30 professionals with an average of 17 years industry experience.  Our goal is to listen and truly understand our clients’ needs and objectives better than any other environmental and engineering consulting firm and to exceed their expectations.

Blackstone empowers its employees.  Our project teams take responsibility for making day to day decisions with the full support of senior management.  For our clients, this means that the person closest to your project is actively working for you in the most efficient and effective means possible.

As our company grows, we maintain the same diligence in hiring each new professional staff member.  Our clients benefit from the best in class staffing combined with active involvement of senior management. The entire organization is designed to understand our clients’ goals and concerns and help them achieve those goals.  Over the past decade, Blackstone has grown into a recognized leader in the industry, known for responsiveness, integrity, and quality.  Our service line has grown to include property condition assessments, environmental site assessments, construction consulting, asset management and compliance services and remediation.

By incorporating integrity, quality, responsiveness, and value into its services, while staying structured for efficiency and flexibility, Blackstone remains a step ahead.