CNAE 7112-0/00 · Rio de Janeiro

Serviços de engenharia in Rio de Janeiro

11,835 active companies are headquartered in Rio de Janeiro with this CNAE as their main activity. They represent 7.5% of Brazil's active companies with the same main activity.

Source: Receita Federal, CNPJ Open Data · October 2026 publication

The same activity in Brazil 158,657

What this list shows

We count each active company once, by its head office in this state 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: 11,835; 7.5% of Brazil's
Of every 100 companies in Rio de Janeiro: 0.5; do this activity
Among Brazil's federative units: 3rd; by companies in this activity

Active companies in Rio de Janeiro

More active establishments and higher registered capital first. This order is not a quality assessment or recommendation. · page 1 of 10

ENGIE SOLUCOES DE OPERACAO E MANUTENCAO LTDA.Rio de Janeiro (RJ)
CONCREMAT ENGENHARIA E TECNOLOGIA S/ARio de Janeiro (RJ)
CONSORCIO MODULOSão Gonçalo (RJ)
CONSORCIO NOVOPERACAORio de Janeiro (RJ)
SATEL - SERVICOS AUXILIARES DE TELECOMUNICACAO DO BRASIL LTDARio de Janeiro (RJ)
EULER ENGENHARIA E CONSULTORIA LTDANiterói (RJ)
VALTELLINA DO BRASIL SERVICOS PARA INDUSTRIA LTDARio de Janeiro (RJ)
UNIAO NORTE FLUMINENSE ENGENHARIA E COMERCIO LTDA.São João da Barra (RJ)
OCEANICA ENGENHARIA E CONSULTORIA S.A.Rio de Janeiro (RJ)
CET BRAZIL EQUIPAMENTOS DE ENERGIA ELETRICA E TECNOLOGIA LTDARio de Janeiro (RJ)
FORSHIP ENGENHARIA S/ARio de Janeiro (RJ)
ETECE CONSULTORIA DE ENGENHARIA LTDARio de Janeiro (RJ)
DNV CLASSIFICACAO, CERTIFICACAO E CONSULTORIA BRASIL LTDARio de Janeiro (RJ)
SONDOTECNICA ENGENHARIA DE SOLOS S ARio de Janeiro (RJ)
TERRAPLENO TERRAPLENAGEM E CONSTRUCAO LTDA - EM RECUPERACAO JUDICIALRio de Janeiro (RJ)
PLANAVE S A ESTUDOS E PROJETOS DE ENGENHARIARio de Janeiro (RJ)
ENEFER CONSULTORIA PROJETOS LTDARio de Janeiro (RJ)
FORCA AMBIENTAL LTDA.São João da Barra (RJ)
M&I ELECTRIC BRAZIL SISTEMAS E SERVICOS EM ENERGIA LTDA.Macaé (RJ)
CTA - ENGENHARIA AMBIENTAL LTDARio de Janeiro (RJ)
PETROENGE PETROLEO ENGENHARIA - EM RECUPERACAO JUDICIAL LTDAMacaé (RJ)
TECNOKIP SOLUCOES INTEGRADAS LTDAItaboraí (RJ)
SIEMENS ENERGY POWER AND INDUSTRIAL APPLICATIONS LTDA.Macaé (RJ)
IQONY SOLUTIONS DO BRASIL LTDARio de Janeiro (RJ)
ICOPLAN-INTERNACIONAL DE CONSULTORIA E PLANEJAMENTO S.ARio de Janeiro (RJ)
AECOM DO BRASIL LTDA.Rio de Janeiro (RJ)
INSPECTOR ENGENHARIA LTDARio de Janeiro (RJ)
SANDECH CONSULTORIA EM ENGENHARIA E GESTAO LTDARio de Janeiro (RJ)
MONTACON ENGENHARIA LTDANiterói (RJ)
EMPRESA MELHORAMENTOS E CONSTRUCOES EMEC S ARio de Janeiro (RJ)

List limited to 300 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 Janeiro0.5
Brazil0.6

In Rio de Janeiro, the activity weighs 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 61.1% 7,230
2 Niterói 9.0% 1,068
3 São Gonçalo 2.3% 269
4 Duque de Caxias 2.1% 253
5 Volta Redonda 2.1% 246
6 Petrópolis 1.9% 224
7 Campos dos Goytacazes 1.9% 223
8 Macaé 1.8% 208
9 Nova Iguaçu 1.4% 171
10 Cabo Frio 0.9% 111

20 more cities

11 Rio das Ostras 108
12 Maricá 102
13 Barra Mansa 89
14 Teresópolis 86
15 Angra dos Reis 85
16 Rio Bonito 78
17 Itaboraí 72
18 Araruama 71
19 Resende 71
20 Nova Friburgo 69
21 Saquarema 59
22 Belford Roxo 55
23 Barra do Piraí 43
24 Itaperuna 42
25 Miguel Pereira 38
26 São João de Meriti 38
27 Três Rios 38
28 Nilópolis 37
29 Magé 35
30 Mesquita 33

Class 7112-0 in Rio de Janeiro

serviços de engenharia, by subclass

Close to this: 7111-1/00 · Serviços de arquitetura, 3,951 companies in Rio de Janeiro.

What activity 7112-0/00 is

Os serviços técnicos de engenharia, como a elaboração e gestão de projetos e os serviços de inspeção técnica nas seguintes áreas: #- engenharia civil, hidráulica e de tráfego #- engenharia elétrica, eletrônica, de minas, química, mecânica, industrial, de sistemas e de segurança, agrária, etc. #- engenharia ambiental, engenharia acústica, etc.
A supervisão de obras, controle de materiais e serviços similares
A supervisão de contratos de execução de obras

See everything this activity covers

Frequently asked questions

How many companies have main CNAE 7112-0/00 in Rio de Janeiro?

11,835 active companies have CNAE 7112-0/00 as their main activity in Rio de Janeiro, according to the Receita Federal's October 2026 publication. That is 0.5 of every 100 companies there, against 0.6 in Brazil.

Which of Rio de Janeiro's cities has the most companies in this activity?

Rio de Janeiro, with 7,230, 61.1% of the state's companies in this activity.

Why can this total differ from the companies operating in this state?

This scope counts active companies by their head office and registered main activity. A company may operate in this state 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.