CNAE 8640-2/02 · Maranhão

Clinical laboratories in Maranhão

435 active companies are headquartered in Maranhão 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 13,924

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 Maranhão: 435; 3.1% of Brazil's
Of every 100 companies in Maranhão: 0.1; do this activity
Among Brazil's federative units: 12th; by companies in this activity

Active companies in Maranhão

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

HEMOLAB COLETA LTDASão João do Paraíso (MA)
RJN LTDARaposa (MA)
ANALISES LABORATORIO E CLINICA MEDICA LTDALoreto (MA)
XAVIER LABORATORIO DE ANALISES CLINICAS LTDACaxias (MA)
DIAS & MAGALHAES LTDACarolina (MA)
MARIA SS EXAME LTDACururupu (MA)
CENTRO DIAGNOSTICO COSTA E SILVA LTDASão Luís (MA)
TUTOIA MED LAB LABORATORIO LTDAÁgua Doce do Maranhão (MA)
LABORATORIO DE ANALISES CLINICAS ANTONIOLLI LTDAImperatriz (MA)
CENTRO DE DIAGNOSTICO CLINICO LTDABalsas (MA)
LABOR-LABORATORIO DE ANALISES LTDAImperatriz (MA)
E B PRADO & CIA LTDACaxias (MA)
CLINICA SD MED LTDASão Domingos do Maranhão (MA)
F S DE SOUZA ANDRADE LTDASão Luís (MA)
R MIRANDA LEITE JUNIOR LTDALoreto (MA)
BIOMED LOCACOES SERVICOS CONSULTORIA E COMERCIO LTDASão João do Carú (MA)
SUPERCLINICA MEDICINA DIAGNOSTICO LTDASão Luís (MA)
TEIXEIRA & SA LTDASão Luís (MA)
A R S RAULINO LTDATimon (MA)
DECAVALCANTE LTDASão Luís (MA)
LAB LUNA GESTAO EM SAUDE LTDACururupu (MA)
DIAGNOSTICOS SAO LUIS LTDASão Luís (MA)
ALFALAB TOXICOLOGICO LTDAPaço do Lumiar (MA)
L P CUPERTINO LTDASão Luís (MA)
LABORATORIO DE ANALISES BIOMEDICAS LTDATutóia (MA)
E F M SIQUEIRA LTDAPenalva (MA)
C J LABORATORIO LTDACarutapera (MA)
I.A.S. SERVICOS MEDICOS LTDACaxias (MA)
ZION GENOMICS LTDASão Luís (MA)
MEDICAL LAB LTDALagoa Grande do Maranhão (MA)

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

Maranhão0.1
Brazil0.1

In Maranhão, the activity weighs 2.4 times what it does in Brazil.

Maranhão's cities with the most companies in this activity

active companies and each city's share of the state

1 São Luís 11.7% 51
2 Imperatriz 6.7% 29
3 Balsas 4.4% 19
4 Presidente Dutra 3.0% 13
5 Caxias 2.8% 12
6 Santa Inês 2.8% 12
7 Bacabal 2.3% 10
8 Barra do Corda 2.1% 9
9 Colinas 2.1% 9
10 Pedreiras 2.1% 9

20 more cities

Class 8640-2 in Maranhão

atividades de serviços de complementação diagnóstica e terapêutica, by subclass

Subclass	Active
8640-2/01 Pathological anatomy and cytology laboratories	35
8640-2/02 Clinical laboratories · this one	435
8640-2/03 Dialysis and nephrology services	45
8640-2/04 Computed tomography services	45
8640-2/05 Diagnostic imaging with ionizing radiation, except tomography	198
8640-2/06 Magnetic resonance imaging services	11
8640-2/07 Diagnostic imaging without ionizing radiation, except MRI	93
8640-2/08 Diagnostic services by graphic recording - ECG, EEG and similar tests	16
8640-2/09 Diagnostic services by optical methods - endoscopy and similar tests	13
8640-2/10 Chemotherapy services	6
8640-2/11 Radiotherapy services	2
8640-2/12 Hemotherapy services	3
8640-2/13 Lithotripsy services	0
8640-2/14 Human cell and tissue bank services	0
8640-2/99 Diagnostic and therapeutic support services not elsewhere classified	43

Close to this: 8640-2/01 · Pathological anatomy and cytology laboratories, 35 companies in Maranhão.

What activity 8640-2/02 is

As atividades dos laboratórios de análises clínicas
As atividades dos laboratórios de biologia molecular
Os postos de coleta laboratorial

See everything this activity covers

Frequently asked questions

How many companies have main CNAE 8640-2/02 in Maranhão?

435 active companies have CNAE 8640-2/02 as their main activity in Maranhão, according to the Receita Federal's October 2026 publication. That is 0.1 of every 100 companies there, against 0.1 in Brazil.

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

São Luís, with 51, 11.7% 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 Maranhão.