CNAE 0321-3/03 · Brazil
Criação de ostras e mexilhões em água salgada e salobra
45 active companies in the Brazilian CNPJ registry have this CNAE as their main activity. Look up companies and explore their distribution by state and city.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
What this list shows
We count each active company in the Brazilian CNPJ registry once, by its head office and this CNAE as its main activity. Branches and secondary activities are excluded from this scope. The total describes the registry, not market revenue or company quality.
- Active companies
- 45
- 1,209th of 1,329 activities
- Opened in 12 months
- 4
- 1,160th by openings
- Of every 100 companies in the country
- 0.0
- do this activity
- Openings per 100 active
- 9
- in the country: 21
Active companies in this activity
More active establishments and higher registered capital first. This order is not a quality assessment or recommendation.- MEXILHOES SUDESTE BRASIL LTDARio de Janeiro (RJ)
- FAZENDA MARINHA OSTRAVAGANTE LTDAFlorianópolis (SC)
- SANT ANA - CULTIVOS MARINHOS LTDAFlorianópolis (SC)
- COOPERATIVA DE AQUICULTORES E AGRICULTORES REDE NOSSA PEROLASalinópolis (PA)
- PRIMAR AQUACULTURA LTDATibau do Sul (RN)
- OSTRAMAR PESCADOS LTDACaiçara do Norte (RN)
- VIEIRAMAR ALIMENTOS LTDAFlorianópolis (SC)
- COOPERATIVA DE MARICULTORES JUBARTE DA PRAINHA - COOPEMAJUPArraial do Cabo (RJ)
- CHAPELAO DA OSTRA CULTIVO E COMERCIO LTDAItapissuma (PE)
- MARICULTURA IPAUM GUACU LTDAAngra dos Reis (RJ)
- FAZENDA MARINHA PORTAL DAS OSTRAS LTDAFlorianópolis (SC)
- BELA OSTRA FAZENDA MARINHA LTDAFlorianópolis (SC)
How to assess a company's data
When you open a company's record, use these guides to check the data and understand what each field can establish.
- How to look up a CNPJ
Check identifiers, dates and registry fields against official sources.
- What an active CNPJ means
Active status does not show that a company is debt-free, licensed or able to operate.
- How to read partner and administrator records
Understand QSA roles and the limits on ownership and representation information.
Where the companies are
Weight in each federative unit: of every 100 active companies, how many have this main activity
- 0.0
- 0.0
- 0.0
Federative units with the most companies
- 1 São Paulo 26
- 2 Santa Catarina 9
- 3 Rio de Janeiro 4
- 4 Rio Grande do Norte 2
- 5 Bahia 1
- 6 Espírito Santo 1
- 7 Pará 1
- 8 Pernambuco 1
Cities with the most companies
active companies by head office
- 1 Cananéia (SP) 17
- 2 Florianópolis (SC) 8
- 3 Caraguatatuba (SP) 6
- 4 Peruíbe (SP) 2
- 5 Caiçara do Norte (RN) 1
- 6 Salinópolis (PA) 1
- 7 Tibau do Sul (RN) 1
- 8 Itapissuma (PE) 1
- 9 Salvador (BA) 1
- 10 Piúma (ES) 1
See the 16 cities
- 11 Angra dos Reis (RJ) 1
- 12 Mangaratiba (RJ) 1
- 13 Arraial do Cabo (RJ) 1
- 14 Rio de Janeiro (RJ) 1
- 15 São Sebastião (SP) 1
- 16 Palhoça (SC) 1
What activity 0321-3/03 is
- Section A — Agricultura, pecuária, produção florestal, pesca e aqüicultura
- Division — Pesca e aqüicultura
- Group — Aqüicultura
- Class — Aquicultura em água salgada e salobra
What it covers
- A criação de ostras e mexilhões em água salgada e salobra
What it does not cover
- A criação de ostras e mexilhões em água doce (0322-1/03)Classified under: 0322-1/03 Criação de ostras e mexilhões em água doce
- A pesca de moluscos (0311-6/02) e (0312-4/02)Classified under: 0311-6/02 Pesca de crustáceos e moluscos em água salgada 0312-4/02 Pesca de crustáceos e moluscos em água doce
- A preservação de moluscos (1020-1/01)Classified under: 1020-1/01 Preservação de peixes, crustáceos e moluscos
- A fabricação de conservas de moluscos (1020-1/02)Classified under: 1020-1/02 Fabricação de conservas de peixes, crustáceos e moluscos
Typical activities
- Criação de coquile
- Criação de lambretas
- Criação de mariscos
- Criação de mexilhões - mitilicultura de alga salgada
- Criação de ostras
- Criação de ostras - ostreicultura
- Criação de sururu
- Criação de vieiras
The activities of class 0321-3
aquicultura em água salgada e salobra, by subclass| Subclass | Active | Openings | Change |
|---|---|---|---|
| 0321-3/01 Criação de peixes em água salgada e salobra | 107 | 5 | — |
| 0321-3/02 Criação de camarões em água salgada e salobra | 874 | 56 | −25.3% |
| 0321-3/03 Criação de ostras e mexilhões em água salgada e salobra · this one | 45 | 4 | — |
| 0321-3/04 Criação de peixes ornamentais em água salgada e salobra | 228 | 59 | +20.4% |
| 0321-3/05 Atividades de apoio à aqüicultura em água salgada e salobra | 59 | 6 | — |
| 0321-3/99 Cultivos e semicultivos da aqüicultura em água salgada e salobra não especificados anteriormente | 44 | 7 | — |
Frequently asked questions about CNAE 0321-3/03
How many CNAE 0321-3/03 companies are there in Brazil?
45 active companies have CNAE 0321-3/03 as their main activity, according to the Receita Federal's October 2026 publication. It is 1,209th among the country's activities by companies.
Which activities make up class 0321-3?
Class 0321-3 has 6 subclasses: 0321-3/01; 0321-3/02; 0321-3/03; 0321-3/04; 0321-3/05; 0321-3/99. The official names are in the subclass table. A company declares one main activity and may declare others as secondary activities.
Which federative unit has the most companies in this activity?
São Paulo, with 26. There, 0.0 of every 100 active companies have this main activity, against 0.0 in the national registry.
Does this total include branches and secondary activities?
No. Each active company is counted once, by its head office and registered main activity. A company may carry out this activity as a secondary activity and be excluded from the count. Geographic distribution uses the registered location; records without a recognized federative unit may be counted nationally without appearing in local groups.
Does active status mean a company is qualified for a contract?
No. Active status describes the Receita Federal registration. It does not establish tax compliance, creditworthiness, licences, ability to fulfil a contract or quality. Check the relevant official documents and the contract's requirements.
How we count
Active companies in the Brazilian CNPJ registry with this as their main activity, counted once by head office. Location is taken from the registry. Where available, openings are for the last 12 months, compared with the previous 12 months.