IES is proud to be a member of the following organizations:

GIVING FIRST.org
Sponsored by the Community First Foundation: Designed to enrich donors’ knowledge about the nonprofit sector and encourage charitable giving in metropolitan Denver. IES welcomes your financial support through GivingFirst. Donations are accepted by credit card.

Colorado Nonprofit Association
Serving nonprofits, strengthening communities. The mission of the Colorado Nonprofit Association is to lead, serve and strengthen Colorado nonprofit organizations.

Colorado Alliance for Environmental Education (CAEE)
Facilitating communication, cooperation, collaboration, and coordination among the varied environmental education programs in the state.

Colorado Tree Coalition
Leading Colorado's efforts to preserve, renew, and enhance community forests.

Colorado Watershed Assembly
Supporting collaborative efforts to protect and improve the conservation values of the land, water and other natural resources of Colorado watersheds.

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Additional Links:

The SeaCrest Group - Offering aquatic toxicology, biomonitoring, environmental impact assessment and management, biological assessments and mixing zone studies.

The Park People - Preserving, enhancing and advocating for Denver's parks, recreation resources, open space and urban forest

Fuel Efficiency Automobile Test (FEAT) Data Center, is the data repository for motor vehicle exhaust emissions measurements and publications.

Jim Digby - Photographer

Bridges Unlimited - Bridges Unlimited LLC provides integrated environmental engineering services, specializing in air pollution prevention, reduction, control, and compliance.

ActiveSET.org - Active National Directory Of Source Emissions Testing