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End of year site maintenance - From Wednesday, December 31st at 11:30 PM until Thursday, January 1st at 12:00 PM, our filing services will be unavailable during scheduled system upgrades.
Our office will be closed from Wednesday, December 24, through Friday, December 26, in observance of Christmas. Colorado Department of State
303-894-2200
1700 Broadway
Suite 550
Denver, CO 80290
Northeast corner of 17th and Broadway
Address mail to the attention of the appropriate program.
Office hours
8:00 AM - 5:00 PM
Monday - Friday
Holiday calendar
1-855-428-3555 (toll free)
Business & Licensing
303-894-2200
1-855-428-3555 (toll free)
Español - 303-894-2200 ext. 6260
Listen to the options to navigate to the program of your choice.
Apostilles & Authentications
Certified documents
303-894-2200
Expedited apostille & authentication services for walk-in customers only: 8:00 AM - 4:30 PM
authentications@coloradosos.gov
Bingo & Raffle
303-894-2200
303-869-4871 (FAX)
licensing@coloradosos.gov
Business Organizations
303-894-2200
303-869-4864 (FAX)
business@coloradosos.gov
Charities & Fundraisers
303-894-2200
303-869-4871 (FAX)
charitable@coloradosos.gov
Code of Colorado Regulations
Administrative Rules
303-894-2200
rules@coloradosos.gov
Durable Medical Equipment
DME Suppliers
303-894-2200
dme@coloradosos.gov
Notary Public
303-894-2200
notary@coloradosos.gov
Uniform Commercial Code
303-894-2200
publicucc@coloradosos.gov
Elections & Voting
303-894-2200
303-869-4861 (FAX)
elections@coloradosos.gov
Help America Vote Act (HAVA)
SCORE
Voter information
Campaign Finance Guidance
303-894-2200 & press 3
cpfhelp@coloradosos.gov
Campaign Finance Complaints and Enforcement
303-894-2200, ext. 6338
cpfcomplaints@coloradosos.gov
Lobbyist Registration
303-894-2200
303-869-4861 (FAX)
lobbyists@coloradosos.gov
Administration Division
303-894-2200
303-869-4860 (FAX)
303-869-4867 (TDD)
administration@coloradosos.gov
Accounting
Budget/Finance
Contracts
Human Resources
Press/Public Information Officer
Department Rulemaking
Submit questions and comments about Colorado Secretary of State notices of proposed rulemaking.
sos.rulemaking@coloradosos.gov
State seal - questions or complaints
administration@coloradosos.gov