We care what our members and supporters have to say. Please share your questions, concerns and feedback.
Our main address and phone number:
1543 Wazee St., Suite 400, Denver, CO, 80202
Questions about membership and automatic giving
Our membership office is located at: 1543 Wazee St #430 Denver, CO 80202
If you’re a supporter with a recurring gift and want to update your credit card information, visit our Credit Card Update page.
Questions about other ways to give
Find out about other ways you can give (planned gifts, gifts of stock, vehicle donations and more.)
To contact our planned giving coordinator, call: 1-800-841-7299.
Visit our media center to find media contacts or to sign up for our media e-mail list.
Email our communications team.
For more general inquiries, email us.
Frequently asked questions
Q: Is my gift tax deductible?
A: Environment Colorado is nonprofit, but due to our legislative work, Environment Colorado is classified as non-tax deductible—a 501(c)(4). We also have a tax-deductible sister organization, Environment Colorado Research & Policy Center.
Q: How do I change or cancel my automatic giving?
A: Call 1-800-401-6511 or email us and let us know how we can help you. If you’re a supporter with a recurring gift and want to update your credit card information, visit our Credit Card Update page.
Other resources & opportunities
Job and internship opportunities