• Companies by industry and city (17 C)
• Companies by continent and industry (10 C)
• Companies by industry and continent (10 C)
• Companies by country and industry (195 C, 1 P)
• Companies by industry and country (38 C)

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• Holding companies by industry (3 C, 1 P)
• Lists of companies by industry (16 C, 53 P)
• Multinational companies by industry (9 C)

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• Defunct companies by industry (26 C)
• Companies by industry and year of establishment (12 C)

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• People by industry and company (6 C)

A

• Agriculture companies (24 C)

C

• Construction and civil engineering companies (18 C, 17 P)

D

• Defence companies (4 C, 3 P)

E

• Entertainment companies (28 C, 2 P)

F

• Financial services companies (14 C, 7 P)
• Food and drink companies (15 C, 1 P)

H

• Health care companies (17 C, 5 P)

I

• Ice companies (23 P)
• Infant products companies (1 C, 12 P)
• Insect companies (2 C)

M

• Manufacturing companies (11 C, 2 P)
• Mining companies (28 C, 20 P)

N

• Naval architecture companies (2 P)
• Non-renewable resource companies (7 C, 1 P)

P

• Public utilities (15 C, 21 P)

R

• Real estate companies (12 C, 6 P)
• Renewable resource companies (9 C)

S

• Service companies (30 C, 1 P)
• Shipyards (6 C, 5 P)

T

• Technology companies (36 C, 17 P)
• Transport companies (24 C, 1 P)

Σ

• Industrial company stubs (3 C, 94 P)

Ω

• Wikipedia categories named after companies by industry (13 C)