Company lists · Data refreshed November 2026

Top 25 Process plant design companies worldwide

Name: Process plant design companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 12,166 companies tracked

RevenueBase identified 12,166 company matches for process plant design companies worldwide as of November 2026 and tracks 268,656 professional contacts across them, including 70,146 with verified work emails. The United States is the largest market and Tehran the largest hub.

This list covers company matches for process plant design companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for process plant design companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

12,166Companies

268,656Contacts tracked

70,146Verified emails

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The 25 largest process plant design companies worldwide

Ranked by team size

Top 25 of 12,166 company matches for process plant design companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Samsung E&a	Exact match	Gangdong-gu, South KoreaHQ recorded Nov 6, 2026	5,001-10,000	7,517 contacts →
	Exact match “SAMSUNG E&A is one of the world’s leading engineering, procurement, construction and project management (EPC & PM) companies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Zachry Group	Exact match	San Antonio, TX, United StatesHQ recorded Nov 6, 2026	10001+	7,226 contacts →
	Exact match “Zachry Group is North America's pacesetter in turnkey engineering, construction, maintenance, turnaround and fabrication services to the energy, chemicals, power, manufacturing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	S&b	Exact match	Houston, LA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	3,819 contacts →
	Exact match “S&B is an engineer and constructor that designs and builds some of the largest and most complex industrial facilities in the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Toyo Engineering Corporation	Exact match	Chiba-shi Mihama-ku, JapanHQ recorded Nov 6, 2026	1,001-5,000	2,912 contacts →
	Exact match “Toyo Engineering is an engineering company that constructs the plant in a global stage centering on the plant engineering field.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	The Haskell Company	Exact match	Jacksonville, WI, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,439 contacts →
	Exact match “Haskell delivers over $3 billion annually in Architecture, Engineering, Construction (AEC) and Consulting solutions to assure certainty of outcome for complex capital projects…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Colliers Engineering & Design	Exact match	Holmdel, NC, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,172 contacts →
	Exact match “Colliers Engineering & Design, an affiliate of Colliers, is a trusted provider of multi-discipline engineering and architecture, design and consulting services to public and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	IMEG	Exact match	Rock Island, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,116 contacts →
	Exact match “Leaders in Engineering and Innovation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	FIVES	Exact match	Paris, FranceHQ recorded Nov 6, 2026	5,001-10,000	2,064 contacts →
	Exact match “Fives, an industrial engineering group, designs and supplies machines, process equipment and production lines for the world's largest industrial players.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Burns & Mcdonnell India	Exact match	Vikhroli West, IndiaHQ recorded Nov 6, 2026	1,001-5,000	1,874 contacts →
	Exact match “At Burns & McDonnell India, we are a diverse team of talented engineers with multidiscipline design and consultancy working across sectors in critical infrastructure: oil and gas…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	BW Design Group	Exact match	St. Louis, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,703 contacts →
	Exact match “BW Design Group is the only independent, fully integrated AEC firm powered by a Manufacturer's Mindset™.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Chiyoda Corporation	Exact match	Yokohama, JapanHQ recorded Nov 6, 2026	5,001-10,000	1,702 contacts →
	Exact match “Since its establishment in 1948, Chiyoda's business field has covered the energy sector such as oil and gas industry including energy conservation, and chemicals, environment…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Audubon Companies	Exact match	Houston, LA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,699 contacts →
	Exact match “Founded in 1997, Audubon Companies LLC provides EPC, consulting, fabrication, and field services to energy and industrial operators across the globe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Hexagon Asset Lifecycle Intelligence	Exact match	Madison, AL, United StatesHQ recorded Nov 6, 2026	10001+	1,698 contacts →
	Exact match “Hexagon’s Asset Lifecycle Intelligence division helps clients design, construct and operate more profitable, safe and sustainable industrial facilities.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Kpff Consulting Engineers	Exact match	Seattle, ID, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,631 contacts →
	Exact match “KPFF is a multi-office, multi-discipline engineering firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	EKIUM	Exact match	Lyon Cedex 07, FranceHQ recorded Nov 6, 2026	1,001-5,000	1,603 contacts →
	Exact match “Welcome to Ekium!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Atwell, LLC	Exact match	Southfield, MI, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,561 contacts →
	Exact match “Atwell is a full-service consulting, engineering and construction services firm that delivers a broad range of creative solutions to clients in the real estate and land…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Bilfinger Engineering	Exact match	Schiedam, NetherlandsHQ recorded Nov 6, 2026	1,001-5,000	1,531 contacts →
	Exact match “Engineering for greenfield plants or modification and modernization projects for brownfield plants: Bilfinger delivers the optimized solution for our customers in terms of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Tkil Industries	Exact match	Pune, IndiaHQ recorded Nov 6, 2026	1,001-5,000	1,501 contacts →
	Exact match “TKIL Industries Pvt.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	GRAY	Exact match	Lexington, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,439 contacts →
	Exact match “Founded by James Norris and Lois Howard Gray in 1960, Gray is a family-owned, fully integrated industrial design-builder specializing in engineering, architecture, construction…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Englobal	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	201-500	1,223 contacts →
	Exact match “Who We Are Englobal Founded in 1985, ENGlobal (NASDAQ: ENG) is a specialty engineering services firm that focuses on automation solutions and select EPCM projects for the energy…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Paul Wurth S.A	Exact match	LuxembourgHQ recorded Nov 6, 2026	201-500	1,218 contacts →
	Exact match “Rooted and founded in Luxembourg more than a 150 years ago, Paul Wurth is a valued industrial engineering partner in the global ironmaking industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Zuhair Fayez	Exact match	Riyadh, Saudi ArabiaHQ recorded Nov 6, 2026	1,001-5,000	1,156 contacts →
	Exact match “Zuhair Fayez stands as the region's foremost engineering and consulting firm, renowned for our innovative approach in architecture, project management, and oil and gas services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Henderson Engineers	Exact match	Lenexa, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	1,124 contacts →
	Exact match “Henderson Engineers is a national building systems design firm with a wide array of engineering services and a portfolio representing a full range of markets including business…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Petrocon Engineers & Consultant	Exact match	Hyderabad, IndiaHQ recorded Nov 6, 2026	1,001-5,000	1,054 contacts →
	Exact match “Petrocon Engineers & Consultants Pvt.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Delp Engenharia Mecânica	Exact match	Vespasiano, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,020 contacts →
	Exact match “Operating in the capital goods market since 1965, is engaged in project development and implementation, from the basis and detail engineering to equipment manufacture and supply.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “process plant design companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 12,166 process plant design companies worldwide

See the full list, filter by size, metro and specialty, and access 70,146 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Process plant design companies worldwide at a glance

As of Nov 6, 2026

26.1%Verified-email coverage

22.1Average contacts per company

11-50Median size (employees)

1.1%Largest-city concentration · Tehran

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

5,370

11-50

4,320

51-200

1,642

201-500

426

501-1,000

154

1,001-5,000

113

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for process plant design companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “process plant design companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 70,146 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Process plant design companies by location

63 lists · largest first

Every Process plant design companies 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “process plant design companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many process plant design companies are there worldwide?

RevenueBase identified 12,166 company matches for process plant design companies worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Samsung E&a tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most process plant design companies?

The United States leads with 1,657 companies, followed by India (1,037) and Brazil (897). Every process plant design companies list by country and city is linked on this page.

Which city has the most process plant design companies?

Tehran leads with 135 company records, followed by Pune (126) and Sao Paulo (120).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 70,146 professional contacts with verified work emails tracked across these 12,166 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.