Colorado does not offer a professional LLC

What Colorado offers instead

There is no professional version of either form to file in Colorado. A licensed practice files the same documents as any other entity of its type.

Is there a PLLC name rule in Colorado?

Colorado sets no PLLC designator at the filing office. The Secretary of State says only that "Professional service companies may need to include a specific professional designator in their name," and directs filers to "§ 7-90-601, C.R.S., and the specific profession in Title 12 or C.R.C.P. 265, for more information and specific details."

Does a licensing board have to approve the filing?

The Secretary of State does not require one, and does not check. Its guidance: "Depending on the profession, Title 12 may require additional information to be included in the filing which can be added as an attachment. Other state agencies or regulatory bodies may have requirements specific to professional service companies." Filers are told to "review Title 12 and contact your regulatory agency to determine if you qualify to form a professional service company and whether you need a professional term or abbreviation."

Which occupations Colorado treats as professional

Enumerated by profession, in Title 12 of the Colorado Revised Statutes rather than in one professional entity act. The Secretary of State: "Title 12 of the Colorado Revised Statutes specify which professionals may form a practice as a professional service company." The office lists thirteen categories that may carry name requirements: accountants, attorneys, chiropractic, dentists, medical practice, optometry, physical therapists, podiatry, psychologists, social workers, marriage and family therapists, professional counselors, and addiction counselors.

Does the agent requirement differ from an ordinary Colorado LLC’s?

No. Colorado sets no separate agent requirement for a professional entity — it is the same requirement an ordinary Colorado LLC files under.

The Secretary of State publishes no registered agent rule specific to professional service companies. Since such a company files the same document as its ordinary legal form, the ordinary Colorado agent requirement is what applies.

Why Colorado answers this way

Colorado neither offers a PLLC nor a professional corporation as a distinct filing, and the office answers the question directly: "Q3. Do professional service companies file a form specific to them? A3. No. Professional service companies will file the same documents as their legal form of entity." The Secretary of State's complete forms list bears that out. It offers Articles of Organization for a Limited Liability Company, Articles of Incorporation for a Profit Corporation, nonprofit and religious variants, cooperative associations, limited cooperative associations, public benefit corporations, corporation sole, LLP and LLLP registrations, and no professional version of any of them. Colorado's own term for the thing is neither PLLC nor PC but "professional service company," defined by the office as "an entity organized for the sole purpose of providing specific professional services to the public." So a Colorado doctor or lawyer forms an ordinary corporation or LLC, and the professional character of the practice comes from Title 12, C.R.S., or from C.R.C.P. 265, not from anything the Secretary of State's form asks. This makes Colorado a different shape of "no" from California, which bars LLCs from professional practice outright, and from Alaska, which allows professional practice in an ordinary LLC but keeps a demanding separate professional corporation statute.