CNAE 3321-0/00 · Piauí

Instalação de máquinas e equipamentos industriais in Piauí

158 active companies are headquartered in Piauí with this CNAE as their main activity. They represent 0.3% of Brazil's active companies with the same main activity.

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

The same activity in Brazil 54,145

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 Piauí: 158; 0.3% of Brazil's
Of every 100 companies in Piauí: 0.1; do this activity
Among Brazil's federative units: 24th; by companies in this activity

Active companies in Piauí

More active establishments and higher registered capital first. This order is not a quality assessment or recommendation. · page 1 of 6

UFV CE I EQUIPAMENTOS FOTOVOLTAICOS LTDA.São João do Piauí (PI)
A & M SOUSA E MELO FABRICACAO & MONTAGEM INDUSTRIAL LTDACocal dos Alves (PI)
GREENYELLOW UFV JAICOS I E II INSTALACAO FOTOVOLTAICA LTDAJaicós (PI)
UFV GY SIGEFREDO PACHECO I E II INSTALACAO FOTOVOLTAICA LTDASigefredo Pacheco (PI)
UFV GY CASTELO DO PIAUI I E II INSTALACAO FOTOVOLTAICA LTDACastelo do Piauí (PI)
ALEXANDRE PEREIRA DA SILVA NETO LTDAOeiras (PI)
UFV GY LAGOA DO PIAUI 201 E 202 INSTALACAO FOTOVOLTAICA LTDALagoa do Piauí (PI)
C M CASA DAS MANGUEIRAS LTDACanto do Buriti (PI)
UFV GY DEMERVAL LOBAO I E II INSTALACAO FOTOVOLTAICA LTDADemerval Lobão (PI)
PRESSAO MAXIMA LTDATeresina (PI)
PACTO SOLAR SERVICOS E COMERCIO LTDATeresina (PI)
WEB ENERGIA SOLAR SERVICOS ELETRICOS LTDALuís Correia (PI)
FMG MANUTENCOES INDUSTRIAIS LTDAFloriano (PI)
S. E. K ENERGY SOLAR LTDACampo Alegre do Fidalgo (PI)
MASTER SERVICE LTDATeresina (PI)
BEM ESTAR SERVICOS DE CONSTRUCOES LTDATeresina (PI)
WAGNER FRANCA DA SILVA LTDASão Raimundo Nonato (PI)
GOMES EQUIPAMENTOS LTDAPaulistana (PI)
M. A. MANUTENCAO LTDATeresina (PI)
F DAS CHAGAS A DE OLIVEIRATeresina (PI)
ANGELO RONCALLI PACHECO MARTINSFloriano (PI)
DOUGLAS DE LIMA SILVACanto do Buriti (PI)
JULIANO L DE S LIMA SERVICOSTeresina (PI)
J DE PADUA M MARQUES NETOTeresina (PI)
F DE SALES COSTATeresina (PI)
MARYELLE DA SILVA VITORIOTeresina (PI)
DOUGLAS HENRIQUE DE MORAIS MOURATeresina (PI)
FRANCISCO INACIO DE SOUSASanto Inácio do Piauí (PI)
JOSE DE ARIMATEIA BARBOSA DA SILVATeresina (PI)
J A M DE A L COSTA FILHOTeresina (PI)

List limited to 158 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

Piauí0.1
Brazil0.2

In Piauí, the activity weighs less than in Brazil.

Piauí's cities with the most companies in this activity

active companies and each city's share of the state

1 Teresina 50.6% 80
2 Parnaíba 6.3% 10
3 Floriano 4.4% 7
4 Picos 3.2% 5
5 Uruçuí 2.5% 4
6 Canto do Buriti 1.9% 3
7 São João do Piauí 1.9% 3
8 São Raimundo Nonato 1.9% 3
9 Campo Maior 1.3% 2
10 Curimatá 1.3% 2

20 more cities

What activity 3321-0/00 is

A instalação de aparelhos e instrumentos de medida, teste e controle e de equipamentos para controle de processos industriais
A instalação de equipamentos e instrumentos ópticos
A instalação de aparelhos e equipamentos de irradiação, eletromédicos e eletroterapêuticos

See everything this activity covers

Frequently asked questions

How many companies have main CNAE 3321-0/00 in Piauí?

158 active companies have CNAE 3321-0/00 as their main activity in Piauí, according to the Receita Federal's October 2026 publication. That is 0.1 of every 100 companies there, against 0.2 in Brazil.

Which of Piauí's cities has the most companies in this activity?

Teresina, with 80, 50.6% 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 Piauí.