CNAE 4291-0/00 · Rio de Janeiro (RJ)
Obras portuárias, marítimas e fluviais in Rio de Janeiro (RJ)
51 active companies are headquartered in Rio de Janeiro (RJ) with this CNAE as their main activity. They represent 10.7% of Brazil's active companies with the same main activity.
Source: Receita Federal, CNPJ Open Data · October 2026 publication
The same activity in Brazil 478 · Rio de Janeiro 94
What this list shows
We count each active company once, by its head office in the city 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.
- Companies in Rio de Janeiro (RJ)
- 51
- 10.7% of Brazil's
- Of every 100 companies in Rio de Janeiro (RJ)
- 0.0
- do this activity
- Among Rio de Janeiro's cities
- 1st
- by companies in this activity
Active companies in Rio de Janeiro (RJ)
More active establishments and higher registered capital first. This order is not a quality assessment or recommendation. · page 1 of 2- VAN OORD SERVICOS DE OPERACOES MARITIMAS LTDARio de Janeiro (RJ)
- JAN DE NUL DO BRASIL DRAGAGEM LTDA.Rio de Janeiro (RJ)
- BOSKALIS DO BRASIL DRAGAGEM E SERVICOS MARITIMOS LTDA.Rio de Janeiro (RJ)
- CONSTRUPORT CONSTRUCAO CIVIL E PORTUARIA LTDARio de Janeiro (RJ)
- CHEC DREDGING CO. LTDRio de Janeiro (RJ)
- PRECURSORE HIDROGRAFIA, PROJETOS AQUAVIARIOS E ESTUDOS AMBIENTAIS LTDARio de Janeiro (RJ)
- CONSORCIO JAN DE NUL - DRAGABRASRio de Janeiro (RJ)
- CH4 ENERGIA LTDARio de Janeiro (RJ)
- DRAGABRAS SERVICOS DE DRAGAGEM LTDARio de Janeiro (RJ)
- GREAT LAKES DREDGE & DOCK DO BRASIL LTDA.Rio de Janeiro (RJ)
- SDC DO BRASIL - SERVICOS MARITIMOS LTDA.Rio de Janeiro (RJ)
- TB CRANES LOCACOES E SERVICOS LTDARio de Janeiro (RJ)
- SEA AND PORT SERVICOS LTDA.Rio de Janeiro (RJ)
- JJR CONSTRUTORA LTDARio de Janeiro (RJ)
- GMA CONSTRUCAO E SERVICOS LTDARio de Janeiro (RJ)
- EGM ELETRONICA E AUTOMACAO LTDARio de Janeiro (RJ)
- MARCOS LUCINDO LTDARio de Janeiro (RJ)
- RENATO PARNAHYBA SUBSEA SERVICES LTDARio de Janeiro (RJ)
- HAINO LANGE SERVICOS LTDARio de Janeiro (RJ)
- BRUNO OSCAR BRAGIAO GOUVEA LTDARio de Janeiro (RJ)
- LP SOLUTION LTDARio de Janeiro (RJ)
- DAVIDSON ANDERSON DE CASTRO GONCALVES LTDARio de Janeiro (RJ)
- GEO PRIDE PRESTACAO DE SERVICOS DE GEOLOGIA OBRAS PORTUARIAS, MARITIMA E FLUVIAIS LTDARio de Janeiro (RJ)
- LORRAN MEDEIROS VALADAO & CIA LTDARio de Janeiro (RJ)
- AMARAL OFFSHORE LTDARio de Janeiro (RJ)
- E D A RODRIGUES JUNIOR LTDARio de Janeiro (RJ)
- NAUTILUS OFFSHORE XIX LTDARio de Janeiro (RJ)
- SCHELIGA, ARQUITETOS ASSOCIADOS LTDARio de Janeiro (RJ)
- MUANIS ENGENHARIA LTDARio de Janeiro (RJ)
- DF OFFSHORE LTDA.Rio de Janeiro (RJ)
List limited to 51 companies, 30 per page. Looking for a specific company? Search by name or CNPJ.
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.
How much the activity weighs
of every 100 active companies, how many do this activity
- Rio de Janeiro (RJ)0.0
- Rio de Janeiro0.0
- Brazil0.0
In Rio de Janeiro (RJ), the activity weighs 2.8 times what it does in Brazil.
Rio de Janeiro's cities with the most companies in this activity
active companies and each city's share of the state
- 1 Rio de Janeiro 54.3% 51
- 2 São Gonçalo 9.6% 9
- 3 Niterói 8.5% 8
- 4 Rio das Ostras 3.2% 3
- 5 Paraty 3.2% 3
- 6 São Francisco de Itabapoana 2.1% 2
- 7 Cabo Frio 2.1% 2
- 8 Campos dos Goytacazes 2.1% 2
- 9 Itaguaí 2.1% 2
- 10 Macaé 2.1% 2
8 more cities
- 11 Magé 2
- 12 Petrópolis 2
- 13 Angra dos Reis 1
- 14 Cachoeiras de Macacu 1
- 15 Itaboraí 1
- 16 Resende 1
- 17 São João de Meriti 1
- 18 Volta Redonda 1
Class 4291-0 in Rio de Janeiro (RJ)
obras portuárias, marítimas e fluviais, by subclassClose to this: 4120-4/00 · Construção de edifícios, 4,395 companies in Rio de Janeiro (RJ).
What activity 4291-0/00 is
- As obras marítimas e fluviais, tais como: #- construção de instalações portuárias #- construção de portos e marinas #- construção de eclusas e canais de navegação (vias navegáveis) #- enrocamentos #- obras de dragagem #- aterro hidráulico #- barragens, represas e diques, exceto para energia elétrica
- A construção de emissários submarinos
- A instalação de cabos submarinos
Frequently asked questions
How many companies have main CNAE 4291-0/00 in Rio de Janeiro (RJ)?
51 active companies have CNAE 4291-0/00 as their main activity in Rio de Janeiro (RJ), according to the Receita Federal's October 2026 publication. That is 0.0 of every 100 companies there, against 0.0 in Brazil.
Which of Rio de Janeiro's cities has the most companies in this activity?
Rio de Janeiro, with 51, 54.3% of the state's companies in this activity.
Why can this total differ from the companies operating in the city?
This scope counts active companies by their head office and registered main activity. A company may operate in the city through a branch or carry out the activity as a secondary activity and be excluded from the count. The registered address and CNAE do not establish every operating location or service.
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 with this as their main activity, counted by head office in Rio de Janeiro (RJ).