Company lists · Data refreshed September 2026

Top 25 Infrastructure conglomerates worldwide

RevenueBase identified 30,384 infrastructure conglomerates worldwide as of September 2026 and tracks 2,327,265 professional contacts across them, including 448,795 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers infrastructure conglomerates worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026. Country and city lists for infrastructure conglomerates follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review
30,384Companies
2,327,265Contacts tracked
448,795Verified emails
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The 25 largest infrastructure conglomerates worldwide

Ranked by team size
Top 25 of 30,384 infrastructure conglomerates worldwide, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure conglomerates: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceMumbai, IndiaHQ checked Sep 20, 202610001+65,195 contacts →

Indirect evidence

“Larsen & Toubro is an Indian multinational engaged in EPC Projects, Hi-Tech Manufacturing and Services.”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceDallas, TX, United StatesHQ checked Sep 20, 202610001+63,914 contacts →

Partial evidence

“AECOM is the global infrastructure leader, committed to delivering a better world.”

Source: RevenueBase Database · checked Sep 20, 2026
3Indirect evidenceReston, VA, United StatesHQ checked Sep 20, 202610001+25,068 contacts →

Indirect evidence

“Bechtel is a trusted engineering, construction and project management partner to industry and government.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceMontreal, QC, CanadaHQ checked Sep 20, 202610001+22,733 contacts →

Indirect evidence

“We are a world-class engineering services and nuclear organization.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceOmaha, NE, United StatesHQ checked Sep 20, 202610001+19,465 contacts →

Indirect evidence

“At Kiewit, the projects we deliver make a difference, and we offer opportunities for you to make one, too.”

Source: RevenueBase Database · checked Sep 20, 2026
6Partial evidenceDubai, United Arab EmiratesHQ checked Sep 20, 202610001+14,832 contacts →

Partial evidence

“Founded in the 1930s, Al-Futtaim has evolved into a leading conglomerate with a rich history of long-lasting and diverse expertise across automotive, retail, real estate, and…”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceMumbai, IndiaHQ checked Sep 20, 20261,001-5,00014,384 contacts →

Indirect evidence

“Tata Projects is one of the most admired Technology led Engineering, Procurement and Construction (EPC) companies in India.”

Source: RevenueBase Database · checked Sep 20, 2026
8Partial evidenceCairo, EgyptHQ checked Sep 20, 202610001+13,922 contacts →

Partial evidence

“Orascom Construction PLC is a leading global engineering and construction contractor primarily focused on infrastructure, industrial and high-end commercial projects in the Middle…”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceSão Paulo, BrazilHQ checked Sep 20, 202610001+13,697 contacts →

Indirect evidence

“Fundada em 1941, a CSN representa um marco no processo de industrialização do Brasil.”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceAhmedabad, IndiaHQ checked Sep 20, 202610001+12,751 contacts →

Indirect evidence

“Adani Group is a diversified organisation in India comprising 10 publicly traded companies.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceSaint-quentin-en-yvelines, FranceHQ checked Sep 20, 202610001+11,641 contacts →

Indirect evidence

“Egis is a leading global architectural, consulting, construction engineering, operations and mobility services firm.”

Source: RevenueBase Database · checked Sep 20, 2026
12Indirect evidenceCentral Jakarta, IndonesiaHQ checked Sep 20, 202610001+11,441 contacts →

Indirect evidence

“Astra was established in 1957 as a trading company.”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceSpittal/drau, AustriaHQ checked Sep 20, 202610001+11,387 contacts →

Indirect evidence

“At STRABAG around people working on progress at more than 2,400 locations worldwide.”

Source: RevenueBase Database · checked Sep 20, 2026
14Partial evidenceMumbai, IndiaHQ checked Sep 20, 20265,001-10,00010,868 contacts →

Partial evidence

“KEC International Limited, the flagship company of RPG Enterprises is a diversified global infrastructure Engineering, Procurement & Construction (EPC) major, with a presence in…”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceOverland Park, KS, United StatesHQ checked Sep 20, 202610001+10,851 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceNorth Ryde, AustraliaHQ checked Sep 20, 202610001+10,666 contacts →

Indirect evidence

“Enabling communities to thrive.”

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidenceLondon, United KingdomHQ checked Sep 20, 202610001+10,507 contacts →

Partial evidence

“Balfour Beatty is a leading international infrastructure group.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceMississauga, ON, CanadaHQ checked Sep 20, 20265,001-10,00010,272 contacts →

Indirect evidence

“Our organization is passionately committed to the pursuit of a better world through positive change.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceMontreal, QC, CanadaHQ checked Sep 20, 202610001+10,015 contacts →

Indirect evidence

“We are one of the world’s leading professional services firms, uniting our engineering, advisory and science-based expertise to shape communities to advance humanity.”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceMontreal, QC, CanadaHQ checked Sep 20, 202610001+9,992 contacts →

Indirect evidence

“SNC Lavalin is now AtkinsRéalis.”

Source: RevenueBase Database · checked Sep 20, 2026
21Partial evidenceParis, FranceHQ checked Sep 20, 202610001+9,918 contacts →

Partial evidence

“Colas, a subsidiary of the Bouygues Group, is a major player in the construction and maintenance of transportation infrastructure and urban development.”

Source: RevenueBase Database · checked Sep 20, 2026
22Indirect evidenceCiudad De Buenos Aires, ArgentinaHQ checked Sep 20, 202610001+9,509 contacts →

Indirect evidence

“Techint Engineering & Construction provides project management, engineering, procurement and construction services on a global basis for large-scale projects in the Oil & Gas…”

Source: RevenueBase Database · checked Sep 20, 2026
23Partial evidenceUk, United KingdomHQ checked Sep 20, 202610001+9,491 contacts →

Partial evidence

“Our purpose is to sustainably deliver infrastructure which is vital to the UK.”

Source: RevenueBase Database · checked Sep 20, 2026
24Indirect evidenceEpsom, United KingdomHQ checked Sep 20, 202610001+9,297 contacts →

Indirect evidence

“Atkins is now AtkinsRéalis.”

Source: RevenueBase Database · checked Sep 20, 2026
25Strong evidenceNew Delhi, IndiaHQ checked Sep 20, 20265,001-10,0009,267 contacts →

Strong evidence

“GMR Group is a leading Indian infrastructure conglomerate with a diversified presence across Airports, Energy, Transportation, Urban Infrastructure, and Sports.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 30,384 infrastructure conglomerates worldwide

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Infrastructure conglomerates worldwide at a glance

As of Sep 20, 2026
19.3%Verified-email coverage
76.6Average contacts per company
11-50Median size (employees)
1.2%Largest-city concentration · Sao Paulo
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
7,342
11-50
8,997
51-200
6,512
201-500
3,119
501-1,000
1,679
1,001-5,000
1,760
5,001-10,000
368
10001+
473

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among infrastructure conglomerates, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for infrastructure conglomerates are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “infrastructure conglomerates”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names infrastructure conglomerates), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among infrastructure conglomerates, and records with no verified work email.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 448,795 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Infrastructure conglomerates by location

116 lists · largest first

Every Infrastructure conglomerates list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names infrastructure conglomerates, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many infrastructure conglomerates are there worldwide?

RevenueBase identified 30,384 infrastructure conglomerates worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Larsen & Toubro, headquartered in Mumbai, tops this list with the largest team on record.

Which country has the most infrastructure conglomerates?

The United States leads with 3,399 companies, followed by India (3,309) and Brazil (2,199). Every infrastructure conglomerates list by country and city is linked on this page.

Which city has the most infrastructure conglomerates?

Sao Paulo leads with 351 headquartered companies, followed by Mumbai (238) and New Delhi (229).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 448,795 verified decision-maker contacts tracked across these 30,384 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.