CNAE 4221-9/02 · Piauí

Construction of electric power stations and distribution networks in Piauí

73 active companies are headquartered in Piauí with this CNAE as their main activity. They represent 3.1% of Brazil's active companies with the same main activity.

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

The same activity in Brazil 2,355

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: 73; 3.1% of Brazil's
Of every 100 companies in Piauí: 0.0; do this activity
Among Brazil's federative units: 13th; 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 2 of 3

ESTRELA INSTALACAO LTDAEsperantina (PI)
EXXYA EMPREENDIMENTOS ENGENHARIA E ENERGIA RENOVAVEIS LTDATeresina (PI)
JUNCO ELETRIFICACOES E PREMOLDADOS LTDAPicos (PI)
MONTEIRO & RODRIGUES LTDAPicos (PI)
EVEREST IMPORTACAO E EXPORTACAO DE MERCADORIAS EM GERAL LTDABom Jesus (PI)
T MORAES BORGES LTDASão João do Piauí (PI)
BRN ENGENHARIA LTDAPicos (PI)
CONSTRUPICOS LTDAPicos (PI)
JAQUELINE ANTONIA LEAL ENGENHARIA LTDAPicos (PI)
MV INSTALACOES E CONSTRUCOES LTDAPicos (PI)
F & J SERVICOS E COMERCIO LTDASão João do Piauí (PI)
MATRIZ SOLAR ENERGIAS RENOVAVEIS LTDATeresina (PI)
CPSOLAR - ENERGIA E SUSTENTABILIDADE LTDATeresina (PI)
CONSTEL SERVICOS DE CONSTRUCAO LTDATeresina (PI)
SIMES - SERVICOS DE INSTALACOES E MONTAGENS ELETRICAS SOLARES LTDAAcauã (PI)
HEITOR GONCALVES SANTANA ENGENHARIA E CONSULTORIA LTDATeresina (PI)
ST ENERGIA LTDATeresina (PI)
TIBURCIO ENGENHARIA LTDABrasileira (PI)
MAZIM ENERGIA SOLAR LTDAPicos (PI)
PLAN SOLAR LTDATeresina (PI)
3A ENGENHARIA LTDACanto do Buriti (PI)
L A BRAGA DE CARVALHO LTDADemerval Lobão (PI)
FLOW ENERGIA E ENGENHARIA LTDATeresina (PI)
J A SOLUCOES LTDATeresina (PI)
FLEX COMERCIO E SERVICOS LTDASão Raimundo Nonato (PI)
A CARDOSO & A SALES LTDAFloriano (PI)
AGRO SOLAR COMERCIO E SERVICOS LTDAUruçuí (PI)
DISSERV COMERCIO E SERVICOS LTDATeresina (PI)
SINERGY SOLUCOES EM ENGENHARIA LTDATeresina (PI)
AJT ENERGY ENGENHARIA E CONSTRUCAO LTDAPaulistana (PI)

List limited to 73 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

Piauí0.0
Brazil0.0

In Piauí, the activity weighs 3.7 times what it does in Brazil.

Piauí's cities with the most companies in this activity

active companies and each city's share of the state

1 Teresina 50.7% 37
2 Picos 19.2% 14
3 Bom Jesus 2.7% 2
4 Floriano 2.7% 2
5 Parnaíba 2.7% 2
6 Ribeiro Gonçalves 2.7% 2
7 São João do Piauí 2.7% 2
8 Uruçuí 2.7% 2
9 Acauã 1.4% 1
10 Angical do Piauí 1.4% 1

8 more cities

Class 4221-9 in Piauí

obras para geração e distribuição de energia elétrica e para telecomunicações, by subclass

Subclass	Active
4221-9/01 Construction of dams and reservoirs for electric power generation	4
4221-9/02 Construction of electric power stations and distribution networks · this one	73
4221-9/03 Maintenance of electric power distribution networks	13
4221-9/04 Construction of telecommunication stations and networks	19
4221-9/05 Maintenance of telecommunication stations and networks	4

What activity 4221-9/02 is

A construção de usinas, estações e subestações hidrelétricas, eólicas, nucleares, termoelétricas, etc.
A construção de redes de transmissão e distribuição de energia elétrica, inclusive o serviço de eletrificação rural
A construção de redes de eletrificação para ferrovias e metropolitanos

See everything this activity covers

Frequently asked questions

How many companies have main CNAE 4221-9/02 in Piauí?

73 active companies have CNAE 4221-9/02 as their main activity in Piauí, 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 Piauí's cities has the most companies in this activity?

Teresina, with 37, 50.7% 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.