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Office of Attorney Regulation Counsel

An Independent Office of the Colorado Supreme Court

Promoting Professionalism. Protecting the Public.

Promoting Professionalism. Protecting the Public.

Attorney Information

ASHTON SEIP MADIGAN (62703)

License Status: ACTV – Active

This attorney or LLP is licensed to practice law in Colorado courts and with the Colorado Supreme Court. Only active attorneys and LLPs may practice law in Colorado.

Name: Madigan, Ashton Seip

Registration / Bar Number: 62703

Is in Private Practice: Yes

Carries Professional Liability Insurance: Yes

Firm Name: Greenberg Traurig LLP

Admission Date: February 19, 2026

Phone: (303) 572-6500

Business Address: 1144 15th Street, Suite 3300, Denver, CO 80202

There is no public disciplinary history on file for this attorney within the state of Colorado.