What entity should your ABA practice use in Connecticut?

Is ABA a licensed profession in Connecticut, and under which agency

Yes. The Department of Public Health licenses behavior analysts under chapter 382a of the General Statutes, effective July 1, 2018, and no person may practice behavior analysis or use the title without the license, subject to listed exceptions for other licensed professionals within scope, students, instructors, supervised assistants, technicians implementing a plan, and family members (Conn. Gen. Stat. § 20-185j). The chapter runs from § 20-185i to § 20-185q and contains no provision on the entity a licensee practices through or who may own it. That silence matters in Connecticut more than in most states, because Connecticut's professional-entity law does not attach to a profession when it becomes licensed; it attaches when the profession is added to a statutory list, and behavior analysis has not been added. The licensure mechanics are on the Connecticut licensing and credentialing page.

The entity menu: what an ABA practice can use

Connecticut offers a professional service corporation under chapter 594a and a professional-services LLC under the LLC Act's licensed-member provision. Both are limited to the listed professions, so neither is available to an ABA-only practice, and neither is needed.

Can a behavior analyst form the professional entity

No, and the consequence is favorable. A professional service corporation may be organized only by persons "licensed or otherwise legally authorized to render the same professional services" (§ 33-182c(a)), and "professional service" is the closed list at § 33-182a(1). Behavior analysts are not on it in the 2012, 2019, 2022, or 2024 codifications. The same is true of the LLC route: the predecessor LLC Act defined "professional service" for LLC purposes by the identical closed list (former § 34-101(25)), the 2017 Uniform Act carried the operative provision forward as § 34-243h(c) and (d) verbatim, including the same multi-profession combinations drawn from § 33-182a, and the current definitions section does not restate the term. The consistent reading, and the one this page adopts, is that "professional services" in § 34-243h means what it meant before recodification: the § 33-182a list. On that reading a behavior analyst cannot form a professional-services LLC and an ABA LLC is not subject to the licensed-member rule. Because the definitional gap is real, counsel should confirm the reading; a contrary construction would treat any licensed service as professional for LLC purposes and would move Connecticut toward Washington's position.

Who is allowed to own it

For an ABA-only practice, anyone. The licensed-shareholder rule applies to corporations organized under chapter 594a, which an ABA practice cannot be; the licensed-member rule applies to LLCs formed to render listed professional services, which an ABA LLC is not. Connecticut's corporate-practice case law reaches physicians and is thin even there: the Supreme Court in Gagliano rejected a hospital's attempt to use the doctrine as a shield and noted that the 1943 optometry case usually cited for it "does not adopt the corporate practice of medicine doctrine" (Gagliano v. Advanced Specialty Care, P.C., 329 Conn. 745 (2018), n. 11), and the physician licensing statute says nothing about entity ownership (§ 20-9). A non-licensee may own the LLC and take distributions. Clinical control belongs to the licensed behavior analysts because practicing behavior analysis is a licensed act under § 20-185j.

Where the two archetypes split

Psychology is on the § 33-182a list, so a practice that adds an in-house psychologist for diagnostic evaluations adds a component that both the Professional Service Corporation Act and the LLC Act's licensed-member rule govern. The psychology component must sit in a professional service corporation or a professional-services LLC whose owners are all licensed for the service, and the statutes permit a combined entity only among the professions they name together: "psychology, marital and family therapy, social work, nursing, professional counseling and psychiatry" for corporations (§ 33-182a(2)(B)) and the parallel list for LLCs (§ 34-243h(d)). Behavior analysis appears in neither combination, so a psychologist and a behavior analyst cannot own one Connecticut professional entity, and a non-licensee cannot own the psychology entity at all. The diagnostics archetype is therefore two entities, an ABA LLC that anyone may own and a psychology professional entity the psychologist owns, with a management company serving both. For the ABA-only archetype, the professional-entity regime never engages.

Why the closed list, not the license, decides Connecticut

Most states define "professional service" by a principle, typically any service requiring a license, and then let the licensure of a profession pull it into the professional-entity regime automatically. Connecticut defines it by a principle and then cuts the principle down to a list: any service requiring a license, "limited to" the named professions. The legislative history shows the list being extended one profession at a time, physical therapists, psychologists, and podiatrists in 1971, optometrists in 1973, chiropractors in 1977, nurses and pharmacists in 1979, marital and family therapists and clinical social workers in the mid-1990s, each by amendment naming the profession (§ 33-182a, history notes). The 2017 behavior analyst licensure act did not amend § 33-182a, and no later act has. The LLC side was built the same way: the original LLC Act imported the list into its own definitions, and the Uniform Act kept the operative rule and its listed combinations while dropping the definition from the new definitions section. The result is a regime that a profession enters by legislative act, not by licensure. A bill adding behavior analysts to § 33-182a(1) and § 34-243h(d) is the development that would move Connecticut from open to licensee-owned for ABA. Watch the General Assembly's professional-corporation amendments.

Naming the entity

A Connecticut LLC name must contain "limited liability company" or an abbreviation such as "LLC" or "L.L.C." and must be distinguishable on the Secretary of the State's records under the Uniform LLC Act. A professional service corporation's name is governed by the Act's own corporate-name section (§ 33-182h), a rule relevant only to a psychology component. Clear the name with the Secretary of the State before filing.

Why choosing the entity is only half the question

Picking the form is one decision. Who may own it, and how outside capital comes in, is the other, and in Connecticut both are open for ABA-only practice: a standard LLC that anyone may own, with outside capital in the clinical entity itself if the parties want it there. The management company earns its place when a psychology or medical component enters the structure. At the transaction stage, Connecticut's material-change notice law reaches physician group practices and hospital-side acquirers, not an ABA-only practice, a point developed on the ownership page.

Read next: Do you need an MSO for your ABA practice in Connecticut?

Tax treatment as a separate layer

Entity form and tax classification are separate choices. A Connecticut LLC is taxed by default as a sole proprietorship or partnership depending on the number of members and can elect corporate or S-corporation treatment; a corporation is a corporation unless it makes an S election. Connecticut's pass-through entity tax is worth evaluating for a multi-member practice. Decide the tax layer with a Connecticut tax adviser.

Multistate practice and foreign qualification

If you operate beyond Connecticut, the Connecticut LLC is only your home-state piece. To deliver services in another state you generally register there as a foreign entity and meet that state's own ownership and entity rules. New York, next door, requires a licensee-owned professional entity for ABA, so a Connecticut LLC owned by a non-licensee cannot simply qualify there and start practicing. Multistate groups usually standardize on a structure that satisfies the strictest state in the footprint rather than the most permissive. See the practice expansion and sale page for the multistate view.

How this connects to the rest of your compliance stack

Entity choice is one layer. Others interact with it:

• Ownership and outside capital. Connecticut is open for ABA-only practice; the management company matters for a psychology component. See the Connecticut MSO and ownership page.
• Licensing and credentialing. Every clinician delivering ABA holds the chapter 382a license, and assistants and technicians work under its exceptions. See licensing and credentialing in Connecticut.
• Payor and Medicaid enrollment. The entity and its ownership are disclosed at enrollment and revalidation. See Connecticut Medicaid and the insurance mandate.

Forming the entity in Connecticut: the sequence

1. License the practitioners. Behavior analysts licensed by the Department of Public Health under §§ 20-185j to 20-185l.
2. Decide the archetype. ABA-only, or ABA plus in-house psychology. The second answer adds a psychology professional entity.
3. Form the ABA entity. A standard LLC by certificate of organization with the Secretary of the State; no professional-services election, no board certificate.
4. Clear the name. Ordinary LLC designator; check availability before filing.
5. Adopt an operating agreement. Set ownership and management, and reserve clinical authority to a licensed behavior analyst clinical director.
6. If diagnostics are in-house, form the psychology entity. A professional service corporation or professional-services LLC owned only by licensed psychologists; management services agreement at a fixed fair-market-value fee.
7. Watch § 33-182a. An amendment adding behavior analysts to the list would bring ABA inside both statutes.

Connecticut entity variables at a glance

Frequently asked questions