CNAE code for dental clinics in Brazil and how to prospect them
The main CNAE code for dental clinics in Brazil is 8630-5/04 – Atividade odontológica (Dental practice). Dental labs use 3250-7/06, and dental radiology centers usually use 8640-2/05. To prospect this segment, search codes 8630-5/04, 3250-7/06, 8640-2/05 as both primary and secondary CNAE, keep only active CNPJs, then filter by company size and city.
CNAE codes for dental clinics
CNAE (Classificação Nacional de Atividades Econômicas) is Brazil's official activity classification. Every company registered with a CNPJ declares one primary CNAE and any number of secondary ones. These are the CNAE 2.3 subclasses most used by dental clinics:
| CNAE | Official description (pt) | English | When it shows up |
|---|---|---|---|
8630-5/04 | Atividade odontológica | Dental practice | Dental clinics and offices |
3250-7/06 | Serviços de prótese dentária | Dental prosthesis services | Dental labs |
8640-2/05 | Serviços de diagnóstico por imagem com uso de radiação ionizante, exceto tomografia | Diagnostic imaging with ionizing radiation, except CT | Dental radiology centers |
Search primary and secondary CNAE
Many dental clinics register their real activity as a secondary CNAE, because the CNPJ was opened under another primary activity or because they do more than one thing. Clinics that also offer facial aesthetics often declare secondary aesthetics codes. Filtering on the primary code alone misses part of the market.
Who sells to dental clinics
Brazil has one of the largest dentist populations in the world, with thousands of clinics buying recurrently.
- Dental practice management, scheduling and records software
- Equipment, intraoral scanners and chair maintenance
- Dental supply distributors
- Prosthesis and aligner labs
- Dental marketing and patient acquisition
How to build a list of dental clinics in Brazil
- Pick the codes: start with
8630-5/04and add3250-7/06,8640-2/05depending on what you sell. - Search them as primary and secondary CNAE.
- Keep only active registrations (situação cadastral ativa) to drop unfit, suspended or closed CNPJs.
- Narrow by location (state, city, neighborhood) and company size (MEI, ME, EPP, other). EPP-size clinics with several chairs and a team buy more complete equipment and software.
- Keep companies with contact data (email or phone) and save the filter as a reusable segment.
- Write a segment-specific opener and track replies in a pipeline.
1Lead runs all of these filters in one search over Brazil's public company registry, and its AI suggests adjacent CNAE codes from a plain-language description such as "I sell intraoral scanners to dental clinics in Santa Catarina". The product interface is in Portuguese.
Qualification signals
- Headquarters and branches: dental chains and franchises.
- High share capital: several chairs and equipment.
- Recent opening date: setting up the practice and choosing suppliers.
How to approach this segment
Dentists decide quickly when the payoff is clear: more patients, fewer no-shows, less chair time. Keep messages short and send outside appointment hours.
Example first message (in Portuguese, with translation)
Frequently asked questions
What is the CNAE code for a dental clinic in Brazil?
8630-5/04 – Atividade odontológica (dental practice), for both clinics and individual offices.
Which CNAE covers dental labs?
3250-7/06, dental prosthesis services.
Can a dentist register as MEI?
No. Dentistry is a regulated profession and is not allowed under the MEI regime.
Where is the official CNAE table?
IBGE publishes it in the CONCLA online search, with the full hierarchy (section, division, group, class, subclass) and notes on what each code includes and excludes.