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Eastern Research Group (ERG) is an employee-owned, multidisciplinary consulting firm founded in 1984. ERG offers a broad range of professional services to public and private sector clients across the United States and internationally. The firm specializes in providing science-based solutions and strategic advice in areas including environmental protection, public health, safety and security, climate change, energy, transportation, infrastructure, and international development. ERG is known for its commitment to quality, objectivity, and delivering impactful results to address complex societal and environmental challenges.
The Lexington headquarters serves as the primary administrative and strategic center for ERG, overseeing national operations, research initiatives, and corporate functions.
Located in a professional office park on Hartwell Avenue, known for hosting a variety of technology, research, and consulting firms. The facility provides a modern and collaborative workspace.
ERG's headquarters likely fosters a professional, collaborative, and intellectually driven work environment. Emphasis is placed on scientific rigor, innovation, and delivering high-quality consulting services to clients.
As the main office, it is central to ERG's identity, strategic direction, and the coordination of its diverse projects and expert teams across various disciplines.
While ERG's core office locations are within the United States, the firm undertakes projects with an international scope. Their expertise in areas like environmental management, public health, climate change adaptation, and sustainable development is applied to support international organizations, foreign governments, and multinational corporations in addressing global challenges. ERG staff often collaborate on international initiatives and provide technical assistance worldwide.
110 Hartwell Avenue
Lexington
MA
USA
Address: 1555 Wilson Boulevard, Suite 625, Arlington, VA 22209
Serves as a key hub for federal contracting, policy support, and engagement with national-level stakeholders in the National Capital Region.
Address: 14555 Avion Parkway, Suite A-100, Chantilly, VA 20151
Strengthens ERG's presence in the Northern Virginia tech corridor, providing specialized technical expertise and project management capabilities.
Address: 2121 RDU Center Drive, Suite 210, Morrisville, NC 27560
Facilitates collaboration with research institutions and serves clients in the Southeast requiring specialized scientific and technical consulting.
Address: 1800 J Street, Sacramento, CA 95811
Provides localized expertise and support for projects tailored to California's unique environmental regulations and sustainability goals.
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As of April 2025, ERG' leadership includes:
ERG has been backed by several prominent investors over the years, including:
No major public announcements regarding executive new hires or exits at Eastern Research Group (ERG) have been identified in the past 12 months. As a private, employee-owned company, such changes are often managed internally without broad public disclosure unless deemed strategically significant.
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Eastern Research Group (ERG) likely utilizes common professional email address formats. While the exact primary format can vary, a typical structure involves a combination of the employee's first and last name.
[first_initial][last]@erg.com
Format
jdoe@erg.com
Example
75%
Success rate
erg.com • February 20, 2024
ERG experts co-authored a significant peer-reviewed article published in Environmental Science & Technology, detailing new research on methane emissions from oil and gas production activities. This research contributes valuable insights to understanding and mitigating greenhouse gas emissions in the energy sector....more
erg.com • November 28, 2023
ERG announced its continued support for the U.S. Environmental Protection Agency’s (EPA) ENERGY STAR program. ERG will provide ongoing technical, analytical, and outreach support for various components of this key initiative promoting energy efficiency....more
erg.com • July 17, 2023
ERG is assisting the U.S. Environmental Protection Agency (EPA) with the modernization of its Water Contaminant Information Tool (WCIT), a secure online database that provides information on contaminants relevant to drinking water and wastewater utilities....more
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