Company lists · Data refreshed November 2026

Top 25 Topsides design engineers worldwide

RevenueBase identified 4,455 company matches for topsides design engineers worldwide as of November 2026 and tracks 205,934 professional contacts across them, including 39,525 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for topsides design engineers 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 topsides design engineers 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
4,455Companies
205,934Contacts tracked
39,525Verified emails
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The 25 largest topsides design engineers worldwide

Ranked by team size
Top 25 of 4,455 company matches for topsides design engineers 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMilan, ItalyHQ recorded Nov 6, 202610001+36,899 contacts →

Exact match

“Saipem is a global leader in the engineering and construction of major projects for the energy and infrastructure sectors, both offshore and onshore.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSharjah, United Arab EmiratesHQ recorded Nov 6, 20265,001-10,0006,498 contacts →

Exact match

“With 50 years of experience, Lamprell is a key player in the global offshore wind and oil & gas markets, delivering high-quality, complex energy infrastructure projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchUnited StatesHQ recorded Nov 6, 202610001+5,162 contacts →

Exact match

“A Premier Global Player with Deep Engineering Expertise in the offshore, marine and energy industries Engineering our Future Together.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchHouston, LA, United StatesHQ recorded Nov 6, 20265,001-10,0003,819 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
5Exact matchFranceHQ recorded Nov 6, 20265,001-10,0001,953 contacts →

Exact match

“The Ponticelli Frères Group is one of the main European service suppliers to companies in the energy (oil and gas, nuclear, renewable energy), industrial (chemical, steelworks…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchÇankaya, TürkiyeHQ recorded Nov 6, 2026501-1,0001,813 contacts →

Exact match

“TP-OTC is established to provide all engineering and technology services for offshore operations in oil and gas industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchHouston, LA, United StatesHQ recorded Nov 6, 20261,001-5,0001,699 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
8Exact matchSingaporeHQ recorded Nov 6, 20261,001-5,0001,672 contacts →

Exact match

“Delivering Sustainable Synergies for Global Possibilities Sembcorp Marine is an integrated brand offering one-stop engineering solutions for the offshore, marine and energy…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLyon Cedex 07, FranceHQ recorded Nov 6, 20261,001-5,0001,603 contacts →

Exact match

“Welcome to Ekium!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact match11510 Puerto Real, SpainHQ recorded Nov 6, 20261,001-5,0001,579 contacts →

Exact match

“Founded in 1972, Dragados Offshore S.A.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSchiedam, NetherlandsHQ recorded Nov 6, 20261,001-5,0001,531 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
12Exact matchUnited StatesHQ recorded Nov 6, 20261,001-5,0001,336 contacts →

Exact match

“At Al Turki’s Oil and Gas Division, we carry out multi-disciplined Engineering Design, Procurement and Construction service in the southern region of Oman with our Off-plot…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchUnited Arab EmiratesHQ recorded Nov 6, 20261,001-5,0001,319 contacts →

Exact match

“Aries is the largest Engineering, Inspection & Maintenance firm in the Middle East.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchRiyadh, Saudi ArabiaHQ recorded Nov 6, 20261,001-5,0001,156 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
15Exact matchKuwaitHQ recorded Nov 6, 20261,001-5,0001,155 contacts →

Exact match

“Established in 1970, IMCO started as a pioneer in the Industrial Electrical and Instrumentation Fields in Kuwait.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchHyderabad, IndiaHQ recorded Nov 6, 20261,001-5,0001,054 contacts →

Exact match

“Petrocon Engineers & Consultants Pvt.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchElgin, United StatesHQ recorded Nov 6, 20261,001-5,0001,043 contacts →

Exact match

“DGSTS, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchAl-khobar, Saudi ArabiaHQ recorded Nov 6, 2026501-1,000882 contacts →

Exact match

“KBR-AMCDE has been successfully delivering engineering solutions in the Kingdom since 2011.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchBrisbane, AustraliaHQ recorded Nov 6, 2026501-1,000873 contacts →

Exact match

“Robert Bird Group (RBG), member of the Surbana Jurong Group, is a specialist structural, civil and construction engineering consultancy with over 800 employees across 12 offices…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchOslo, NorwayHQ recorded Nov 6, 2026501-1,000837 contacts →

Exact match

“AGR – an Aqualis company – is a multidisciplinary consultancy, specialising in drilling & wells, subsurface, marine and subsea solutions, resourcing, technical safety and software…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMacaé, BrazilHQ recorded Nov 6, 2026501-1,000812 contacts →

Exact match

“Techocean is a supplier of engineering services focused on the oil & gas industry, creating solutions for steel fabrications as Platforms, Piping Lines, Several Structures and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026n/a807 contacts →

Exact match

“Energo Engineering is a KBR Company that provides the full package of structural integrity management (SIM) and advanced structural engineering services for offshore floating and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchVung Tau, VietnamHQ recorded Nov 6, 20265,001-10,000803 contacts →

Exact match

“Exploration and development oilfield”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchEstaque, FranceHQ recorded Nov 6, 20261,001-5,000801 contacts →

Exact match

“For over 50 years the Parlym Group has managed to establish itself as a major player in industrial engineering all over the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLe Havre, FranceHQ recorded Nov 6, 20261,001-5,000778 contacts →

Exact match

“Building on its industrial heritage, its strong ties to the Snef Group, and its commitment to innovation, Fouré Lagadec continues to evolve to meet the technical and energy…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 4,455 topsides design engineers worldwide

See the full list, filter by size, metro and specialty, and access 39,525 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Topsides design engineers worldwide at a glance

As of Nov 6, 2026
19.2%Verified-email coverage
46.2Average contacts per company
11-50Median size (employees)
2.3%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,696
11-50
1,530
51-200
766
201-500
223
501-1,000
99
1,001-5,000
81
5,001-10,000
11
10001+
16

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 topsides design engineers are linked below.
What qualifies
Company records worldwide whose business descriptions match “topsides design engineers” 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 39,525 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.

Topsides design engineers by location

37 lists · largest first

Every Topsides design engineers 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 “topsides design engineers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many topsides design engineers are there worldwide?

RevenueBase identified 4,455 company matches for topsides design engineers 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?

Saipem tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most topsides design engineers?

The United States leads with 402 companies, followed by India (388) and the United Kingdom (386). Every topsides design engineers list by country and city is linked on this page.

Which city has the most topsides design engineers?

Houston leads with 102 company records, followed by Singapore (80) and Tehran (71).

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 39,525 professional contacts with verified work emails tracked across these 4,455 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.