Skip to content
Last updated: April 2026
II

InterAgency Inc.

Washington, DC
↑positive92%

InterAgency Inc. provides planning, environmental consulting, and regulatory coordination for infrastructure and resiliency programs in the Nation’s Capital. Since 2011, it has served engineering, development, and construction clients on public infrastructure and large-scale private development.

environmental consultingregulatory coordinationplanninginfrastructure consultingresiliency programssustainable designpermitting
Is this your business? Claim this listing — free

Credentials & Experience

Years of Experience
15+

Coverage Area

greater Washington, D.C. metropolitan area

Additional Details

Years of Experience
15 years
Service Types Offered
Regulatory Compliance

Review Sentiment

↑positive92%

The description conveys a strongly positive sentiment, highlighting InterAgency Inc.’s extensive experience, certifications, and leading role in regulatory coordination and sustainable infrastructure services.

regulatory coordinationenvironmental consultingsustainable designcertifiedexperience

Review Highlights

"WE ARE THE PREMIER PROVIDER OF REGULATORY COORDINATION SERVICES IN THE GREATER WASHINGTON, D.C. METROPOLITAN AREA"

"COLLECTIVELY, OUR TEAM HAS OVER 100 YEARS OF EXPERIENCE IN ENVIRONMENTAL SCIENCE, A & E DESIGN, AND CONSTRUCTION MANAGEMENT"

"We are a small company with a big footprint"

"InterAgency is certified by City, State, and Federal authorities to collaborate on the region’s largest development projects"

Location

80 M Street SE, Suite 100, Washington, DC 20003

Request a Quote from InterAgency Inc.

Sent directly to InterAgency Inc.. Free, no obligation.

Have you worked with this business? Leave a review

Leave a Review for InterAgency Inc.

Reviews are verified before publishing.

Sponsored

Want to appear above your competitors?

Get Featured

Premium placement · Priority visibility · Sponsored badge

Stay Updated

Pricing data and tips for choosing a provider.

Free. Unsubscribe anytime.