CNAE 4292-8/02 · Brazil

Obras de montagem industrial

3,402 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: 3,402; 506th of 1,329 activities
Opened in 12 months: 286; −16.4% · 535th by openings
Of every 100 companies in the country: 0.0; do this activity
Openings per 100 active: 8; 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.

U T C ENGENHARIA S/A - EM RECUPERACAO JUDICIALSão Paulo (SP)
NPL ENGENHARIA S.A.São Paulo (SP)
MILPLAN ENGENHARIA S.A.Belo Horizonte (MG)
ENESA ENGENHARIA S.A.São Paulo (SP)
MONTCALM MONTAGENS INDUSTRIAIS S/ASão Paulo (SP)
LV CASTRO ENGENHARIA E INSPECAO INDUSTRIAL LTDALauro de Freitas (BA)
REFRAMAX ENGENHARIA S.ABelo Horizonte (MG)
CONSAG CS S.ABelo Horizonte (MG)
REDE MONTAGENS ELETROMECANICAS S/ABetim (MG)
CONSAG ENGENHARIA S/ABelo Horizonte (MG)
SGS INDUSTRIAL - INSTALACOES, TESTES E COMISSIONAMENTOS LTDABarueri (SP)
CONSTRUTORA ELOS ENGENHARIA S/ASalvador (BA)

Look up companies in this activity (up to 300)

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

Federative units with the most companies

1 São Paulo 1,377
2 Minas Gerais 333
3 Paraná 316
4 Bahia 179
5 Rio de Janeiro 153
6 Goiás 148
7 Rio Grande do Sul 132
8 Pará 111
9 Santa Catarina 100
10 Espírito Santo 94

See the 26 federative units

11 Mato Grosso 81
12 Pernambuco 74
13 Mato Grosso do Sul 54
14 Maranhão 50
15 Ceará 41
16 Amazonas 35
17 Alagoas 22
18 Rio Grande do Norte 17
19 Paraíba 15
20 Piauí 12
21 Distrito Federal 11
22 Tocantins 11
23 Amapá 10
24 Sergipe 9
25 Rondônia 8
26 Acre 1

Cities with the most companies

active companies by head office

See the 30 cities

What activity 4292-8/02 is

Section F — Construção
Division — Obras de infra-estrutura
Group — Construção de outras obras de infra-estrutura
Class — Montagem de instalações industriais e de estruturas metálicas

What it covers

As obras de montagem de instalações industriais (tubulações, redes de facilidades), tais como: #- refinarias #- plantas de indústrias químicas

What it does not cover

A montagem e instalação de máquinas e equipamentos industriais (3321-0/00)Classified under: 3321-0/00 Instalação de máquinas e equipamentos industriais
A montagem e desmontagem de andaimes, plataformas, fôrmas para concreto, escoramentos e outras estruturas temporárias (4399-1/02)Classified under: 4399-1/02 Montagem e desmontagem de andaimes e outras estruturas temporárias

Typical activities

Obras de montagem industrial de refinarias
Obras de montagens industriais (tubulações, redes de facilidades, etc.)

Source: IBGE, CNAE 2.3 and its explanatory notes

The activities of class 4292-8

montagem de instalações industriais e de estruturas metálicas, by subclass

Subclass	Active	Openings	Change
4292-8/01 Montagem de estruturas metálicas	8,253	944	−10.5%
4292-8/02 Obras de montagem industrial · this one	3,402	286	−16.4%

Frequently asked questions about CNAE 4292-8/02

How many CNAE 4292-8/02 companies are there in Brazil?

3,402 active companies have CNAE 4292-8/02 as their main activity, according to the Receita Federal's October 2026 publication. It is 506th among the country's activities by companies.

Which activities make up class 4292-8?

Class 4292-8 has 2 subclasses: 4292-8/01; 4292-8/02. 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 1,377. 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.