Company lists · Data refreshed November 2026

Top 25 Petroleum refinery construction companies based in Spain

Name: Petroleum refinery construction companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 88 companies tracked

RevenueBase identified 88 company matches for petroleum refinery construction companies associated with Spain as of November 2026 and tracks 16,205 professional contacts across them, including 3,101 with verified work emails. Madrid is the largest hub.

This list covers company matches for petroleum refinery construction companies associated with Spain, 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.

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

88Companies

16,205Contacts tracked

3,101Verified emails

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The 25 largest petroleum refinery construction companies based in Spain

Ranked by team size

Top 25 of 88 company matches for petroleum refinery construction companies based in Spain, 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	Tecnicas Reunidas	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	10001+	11,748 contacts →
	Exact match “TR is an international general contractor engaged in the engineering and construction of industrial facilities in the fields of-Oil & Gas -Refining & Petrochemical -Power…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Dragados Offshore	Exact match	11510 Puerto Real, SpainHQ recorded Nov 6, 2026	1,001-5,000	1,579 contacts →
	Exact match “Founded in 1972, Dragados Offshore S.A.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Df-Duro Felguera	Exact match	Gijón, SpainHQ recorded Nov 6, 2026	1,001-5,000	505 contacts →
	Exact match “Duro Felguera is a global company based in Asturias.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Intecsa Industrial	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	501-1,000	394 contacts →
	Exact match “Intecsa Industrial is a Spanish engineering company with more than 50 years experience in Engineering, “Turn-key” execution of industrial plants and supply of technological…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Lointek	Exact match	Urduliz, SpainHQ recorded Nov 6, 2026	201-500	166 contacts →
	Exact match “LOINTEK is a private company firmly established in the international market of engineering, supply, manufacture and service in the sector of equipment for the industry of the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Techno PRO Hispania	Exact match	Cartagena, SpainHQ recorded Nov 6, 2026	201-500	150 contacts →
	Exact match “Since 1990, Techno Pro Hispania (TPH) and the FIVA Group have worked closely with their clients in the development of industrial, naval, energy, and petrochemical engineering…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Dynatec, S.A	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	201-500	108 contacts →
	Exact match “Engineering company based in Madrid, Spain with over 40 years of experience in the fields of petrochemical and industrial engineering, conventional and nuclear power plants…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Azcatec Tecnología E Ingeniería	Exact match	Seville, SpainHQ recorded Nov 6, 2026	51-200	108 contacts →
	Exact match “AZCATEC It is the tool for a group of well-organized professional engineers and experts in the development of industrial plants, energy and environmental engineering have to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Diseprosa	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	51-200	107 contacts →
	Exact match “DISEÑOS Y PROYECTOS REUNIDOS, S.A.(DISEPROSA), fundada en Madrid en 1986 y dedicada al desarrollo y prestación de servicios de Ingeniería y Consultoría, Dirección y Supervisión de…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Ledr Ingenieria Y Servicios SL	Exact match	Abrera, SpainHQ recorded Nov 6, 2026	51-200	79 contacts →
	Exact match “En LEDR Ingeniería y Servicios SL no solo diseñamos sobre el plano, nuestra verdadera fuerza reside en la capacidad de ejecutar proyectos desde el concepto inicial hasta la puesta…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Grupo Cartago Ingenieros	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	51-200	65 contacts →
	Exact match “Grupo CARTAGO desarrolla servicios de ingeniería y de dirección y supervisión de obra en la construcción y puesta en marcha de plantas industriales, petroquímicas, centrales…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Aguilar Y Salas S.A	Exact match	Barcelona, SpainHQ recorded Nov 6, 2026	51-200	57 contacts →
	Exact match “ENG Aguilar y Salas, s.a.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Gesinom	Exact match	Puertollano, SpainHQ recorded Nov 6, 2026	51-200	43 contacts →
	Exact match “GESINOM Ingeniería es una empresa especializada en ofrecer soluciones de ingeniería industrial con más de 18 años de experiencia en el sector.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	IFI Facility	Exact match	San Fernando De Henares, SpainHQ recorded Nov 6, 2026	51-200	36 contacts →
	Exact match “Instalaciones Generales.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	CMN Ingeniería	Exact match	Santa Cruz De Tenerife, SpainHQ recorded Nov 6, 2026	11-50	33 contacts →
	Exact match “We are a company of advanced technical services for Engineering, Construction and Installations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Indetec Grupo Vento	Exact match	Paterna, SpainHQ recorded Nov 6, 2026	11-50	27 contacts →
	Exact match “Grupo Vento es confianza y seguridad.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Idip Idesa Industrial Plants	Exact match	Gijón, SpainHQ recorded Nov 6, 2026	51-200	26 contacts →
	Exact match “IDIP was established in 2015 to expand IDESA’s portfolio of services, providing integrated industrial solutions to clients worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Enemek	Exact match	San Roque, SpainHQ recorded Nov 6, 2026	11-50	21 contacts →
	Exact match “Enemek is an EPC contractor specialised in utility-scale photovoltaic plants and Battery Energy Storage Systems (BESS).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Concom, S.A	Exact match	Cornella Del Llobregat, SpainHQ recorded Nov 6, 2026	51-200	20 contacts →
	Exact match “CONCOM is a Spanish engineering company established since 1996 and consolidated in the Business of EPC Consulting, EPC Monitoring, as well as Installations & Infrastructures…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Arsinger SL	Exact match	Seville, SpainHQ recorded Nov 6, 2026	201-500	18 contacts →
	Exact match “Somos una empresa de ingeniería y arquitectura con un amplio recorrido en el área de la Ingeniería, Construcción, Energía, Medio Ambiente e I+D+I.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Aldama Y Díez Ingenieros Asociados S.L	Exact match	Bilbao, SpainHQ recorded Nov 6, 2026	11-50	18 contacts →
	Exact match “AyD has extensive experience in the development of large projects, fundamentally Conventional Thermal Power Plants and Combined Cycle Power Plants, in their bidding and planning…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	BCS Ingeniería Y Fabricación S.L	Exact match	Torrent, SpainHQ recorded Nov 6, 2026	51-200	13 contacts →
	Exact match “Somos tu empresa de ingeniería, instalación y montaje industrial.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Nirosa Ingeniería, S.A	Exact match	Palencia, SpainHQ recorded Nov 6, 2026	11-50	12 contacts →
	Exact match “Ingeniería de Proyectos e implantación de equipos especializada en Diseño y Cálculo de Tuberías, Instalaciones y Digitalización en Proyectos EPCM y EPC Llave en Mano.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Soldoza SL	Exact match	Lugones, SpainHQ recorded Nov 6, 2026	1-10	11 contacts →
	Exact match “We are a team of professionals with more than 20 years of experience, specialized in LNG, Oil & Gas Plants, Solar Thermal and Chemical Plants.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Newton Ingenieros	Exact match	Tarragona, SpainHQ recorded Nov 6, 2026	11-50	9 contacts →
	Exact match “NEWTON Ingenieros es una empresa de ingeniería y consultoría con la experiencia y capacidades técnicas para la prestación de servicios adaptados a las necesidades reales de cada…” 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 “petroleum refinery construction 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 88 petroleum refinery construction companies based in Spain

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Petroleum refinery construction companies based in Spain at a glance

As of Nov 6, 2026

19.1%Verified-email coverage

184.1Average contacts per company

11-50Median size (employees)

22.7%Largest-city concentration · Madrid

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for Spain, so it is reported there. Company counts and contact totals on this page are exact for Spain, over 88 companies.

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.
What qualifies: Company records associated with Spain whose business descriptions match “petroleum refinery construction 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 3,101 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.

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 “petroleum refinery construction companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many petroleum refinery construction companies are there based in Spain?

RevenueBase identified 88 company matches for petroleum refinery construction companies associated with Spain 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?

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

Which city has the most petroleum refinery construction companies?

Madrid leads with 20 company records, followed by Seville (6) and Barcelona (4).

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 3,101 professional contacts with verified work emails tracked across these 88 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.