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Minas Gerais · Southeast region

Companies in Mariana (MG)

7,298 active companies are headquartered in Mariana (MG). Look up a company or explore the activity breakdown and the available indicators for this location.

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

Look up companies in Mariana (MG)

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

Continue the search (up to 300 companies)

What this list shows

We count each active company once by its registered head office in Mariana (MG). Branches are not counted as additional companies. This list is not filtered by CNAE; activity breakdowns use the registered main activity. The total describes the registry, not revenue or company quality.

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.

Company profile of Mariana (MG)

Active companies
7,298
In the state
63rd
of 853 locations with companies in the dataset
Share of MG
0.3%
of the state's companies
Opened in 12 months
1,462
+14.8% on the 12 months before
Closed in 12 months
759
+11.8% on the 12 months before

What Mariana stands out in

Activities that weigh more among the city's companies than among the state's

How to read it: "8.0×" means the activity is a 8.0 times larger share of Mariana's companies than of the state's. We count only activities with at least 30 companies in the city. It shows the city's profile, not each company's size.

Activities with the most companies in Mariana

main activity, active companies
  1. 1 Comércio varejista de artigos do vestuário e acessórios 4781-4/00 362
  2. 2 Cabeleireiros, manicure e pedicure 9602-5/01 354
  3. 3 Obras de alvenaria 4399-1/03 223
  4. 4 Lanchonetes, casas de chá, de sucos e similares 5611-2/03 201
  5. 5 Comércio varejista de mercadorias em geral, com predominância de produtos alimentícios - minimercados, mercearias e armazéns 4712-1/00 180
  6. 6 Atividades de estética e outros serviços de cuidados com a beleza 9602-5/02 143
  7. 7 Atividades de associações de defesa de direitos sociais 9430-8/00 124
  8. 8 Fornecimento de alimentos preparados preponderantemente para consumo domiciliar 5620-1/04 119
  9. 9 Restaurantes e similares 5611-2/01 114
  10. 10 Preparação de documentos e serviços especializados de apoio administrativo não especificados anteriormente 8219-9/99 105
  11. 11 Serviço de transporte de passageiros - locação de automóveis com motorista 4923-0/02 103
  12. 12 Serviços de lavagem, lubrificação e polimento de veículos automotores 4520-0/05 101
18 more activities
  1. 13Promoção de vendas 7319-0/02100
  2. 14Transporte rodoviário de carga, exceto produtos perigosos e mudanças, intermunicipal, interestadual e internacional 4930-2/0299
  3. 15Transporte rodoviário de carga, exceto produtos perigosos e mudanças, municipal 4930-2/0198
  4. 16Serviços de manutenção e reparação mecânica de veículos automotores 4520-0/0195
  5. 17Outras atividades de ensino não especificadas anteriormente 8599-6/9989
  6. 18Serviços advocatícios 6911-7/0183
  7. 19Locação de automóveis sem condutor 7711-0/0083
  8. 20Serviços de organização de feiras, congressos, exposições e festas 8230-0/0183
  9. 21Bares e outros estabelecimentos especializados em servir bebidas, sem entretenimento 5611-2/0480
  10. 22Instalação e manutenção elétrica 4321-5/0079
  11. 23Treinamento em desenvolvimento profissional e gerencial 8599-6/0474
  12. 24Atividades de consultoria em gestão empresarial, exceto consultoria técnica específica 7020-4/0069
  13. 25Bares e outros estabelecimentos especializados em servir bebidas, com entretenimento 5611-2/0566
  14. 26Serviços de engenharia 7112-0/0066
  15. 27Fabricação de produtos de padaria e confeitaria com predominância de produção própria 1091-1/0264
  16. 28Atividade odontológica 8630-5/0464
  17. 29Comércio varejista de materiais de construção em geral 4744-0/9962
  18. 30Comércio varejista de bebidas 4723-7/0061

Mariana among Minas Gerais's cities

the cities with a similar number of companies in the state
  1. 60th Frutal 7,781
  2. 61st Janaúba 7,688
  3. 62nd Cataguases 7,489
  4. 63rd Mariana 7,298
  5. 64th Arcos 7,258
  6. 65th Itabirito 7,214
  7. 66th Bom Despacho 7,010

Companies in Minas Gerais

Mariana and its neighbouring cities

active companies · neighbours in the immediate region of Santa Bárbara - Ouro Preto
  1. Ouro Preto 9,258
  2. Mariana 7,298
  3. Itabirito 7,214
  4. Barão de Cocais 3,485
  5. Santa Bárbara 3,370
  6. Catas Altas 727

Frequently asked questions about companies in Mariana

How many active companies are there in Mariana (MG)?

There are 7,298 active companies, counted by their registered head office in this location. The reference is the Receita Federal's October 2026 publication.

How are companies and activities counted?

We count each active company once by its registered head office in Mariana (MG). Branches are not counted as additional companies. This list is not filtered by CNAE; activity breakdowns use the registered main activity. The total describes the registry, not revenue or company quality.

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.

Which activity has the most companies in Mariana?

It is main activity CNAE 4781-4/00, with 362 active companies. See its description in this page's activity breakdown.

Which activity does Mariana stand out in most?

CNAE 7711-0/00: 83 companies. This activity's share of Mariana's companies is 8.0 times its share across the federative unit. The data show the concentration, not the reason.

About the municipality

IBGE code
3140001
State
Minas Gerais
Region
Southeast
Immediate region (IBGE)
Santa Bárbara - Ouro Preto

Source: IBGE, Brazil's regional division