
Why Epsilon?
We specialize in navigating the complexities of regulatory approvals for real estate, energy, and infrastructure projects. Since 1997, our team of experienced scientists, planners, and engineers has provided the expertise and clarity necessary to secure successful project approvals. We are committed to making permits happen, supporting over 3,000 projects across the northeastern United States in sectors ranging from environmental and energy to industry and community development. With Epsilon, your project moves forward with confidence, backed by decades of proven experience and dedicated professionals.

Services
With over 25 years of experience, we offer a diverse range of services that are among the best in their class.

Acoustics & Noise

Environmental Compliance

Air Quality

GIS

Coastal & Marine

Historic Preservation

Ecological Sciences

Real Estate Permitting

Markets
With expertise across various markets, we excel in cross-market collaboration

Energy

Commercial & Institutional Development

Offshore Wind

Transportation Infrastructure

Real Estate & Commercial Development

Industrial
Our Portfolio
Epsilon Associates has completed more than 3,000 projects in nearly all fifty states and several countries across the globe. We are a recognized industry leader in Boston real estate development and regional energy permitting. While we are always eager to share our many project successes, we have chosen to highlight only a select group of our more complex projects.
MEET THE TEAM















KNOWLEDGE CENTER
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Acoustic Harmony with the Community: Data Centers
Read more: Acoustic Harmony with the Community: Data CentersAt the Data Center Insights and Innovation Conference, Lead Acoustics Engineer, Clint Cyr, presented on a growing and pressing challenge for data center projects nationwide: managing community noise expectations and balancing regulatory requirements. As data center developers seek new sites, community concerns of equipment noise, 24/7 operations, and quality of […]
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Cumulative Impact Analysis Regulations Finalized as part of the rollout of the Siting and Permitting Reforms for Clean Energy Infrastructure
Read more: Cumulative Impact Analysis Regulations Finalized as part of the rollout of the Siting and Permitting Reforms for Clean Energy InfrastructureThe 2024 Climate Act (An Act Promoting a Clean Energy Grid, Advancing Equity and Protecting Ratepayers) was signed into law in November 2024. The Act required the Massachusetts Energy Facilities Siting Board (EFSB) and Department of Energy Resources (DOER) to promulgate regulations to implement siting and permitting reforms by March […]





