Company lists · Data refreshed October 2026

Top 25 Chemical plant construction contractors based in Spain

Name: Chemical plant construction contractors based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 188 companies tracked

RevenueBase identified 188 company matches for chemical plant construction contractors associated with Spain as of October 2026 and tracks 15,725 professional contacts across them, including 2,942 with verified work emails. Madrid is the largest hub.

This list covers company matches for chemical plant construction contractors 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 October 9, 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 Oct 9, 2026 How this list was built

188Companies

15,725Contacts tracked

2,942Verified emails

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The 25 largest chemical plant construction contractors based in Spain

Ranked by team size

Top 25 of 188 company matches for chemical plant construction contractors based in Spain, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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 Oct 9, 2026	10001+	11,378 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 · Oct 9, 2026 · View company records in RevenueBase
2	Nervion Industries, Engineering & Services, S.L	Exact match	Bilbao, SpainHQ recorded Oct 9, 2026	1,001-5,000	720 contacts →
	Exact match “NERVION INDUSTRIES is a business group dedicated to industrial services and applied engineering, providing services in strategic sectors.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3	Intecsa Industrial	Exact match	Madrid, SpainHQ recorded Oct 9, 2026	501-1,000	393 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 · Oct 9, 2026 · View company records in RevenueBase
4	Bachiller	Exact match	Parets Del Vallès, SpainHQ recorded Oct 9, 2026	51-200	285 contacts →
	Exact match “BACHILLER is an industrial engineering company specialized in the design and construction of process equipment and pressure vessels for the chemical, petrochemical, fine chemical…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5	Técnicas Reunidas Initec	Exact match	Madrid, SpainHQ recorded Oct 9, 2026	501-1,000	281 contacts →
	Exact match “Contratista general con actividad internacional que se dedica a la ingeniería, diseño y construcción de todo tipo de instalaciones industriales para un amplio espectro de clientes…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6	Novargi	Exact match	Vitoria-gasteiz, SpainHQ recorded Oct 9, 2026	51-200	148 contacts →
	Exact match “NOVARGI GROUP, is a global integral engineering solutions contractor for the Energy and Fertilizer Industry.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7	Grupo Ditecsa	Exact match	Seville, SpainHQ recorded Oct 9, 2026	1,001-5,000	137 contacts →
	Exact match “Ditecsa, fundada en 1993, es una compañía internacional especializada en la gestión integral de plantas industriales.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8	IDESA	Exact match	Gijón, SpainHQ recorded Oct 9, 2026	201-500	127 contacts →
	Exact match “Founded in 1993, IDESA has grown to become one of the most currently recognized and respected companies in the design, fabrication and supply of static and modular equipment…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9	Azcatec Tecnología E Ingeniería	Exact match	Seville, SpainHQ recorded Oct 9, 2026	51-200	106 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 · Oct 9, 2026 · View company records in RevenueBase
10	Dynatec, S.A	Exact match	Madrid, SpainHQ recorded Oct 9, 2026	201-500	103 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 · Oct 9, 2026 · View company records in RevenueBase
11	Ledr Ingenieria Y Servicios SL	Exact match	Abrera, SpainHQ recorded Oct 9, 2026	51-200	69 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 · Oct 9, 2026 · View company records in RevenueBase
12	Cosermo	Exact match	Gijón, SpainHQ recorded Oct 9, 2026	51-200	63 contacts →
	Exact match “COSERMO ESPAÑOLA S.L Passion for perfection.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13	Aguilar Y Salas S.A	Exact match	Barcelona, SpainHQ recorded Oct 9, 2026	51-200	57 contacts →
	Exact match “ENG Aguilar y Salas, s.a.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	Gesinom	Exact match	Puertollano, SpainHQ recorded Oct 9, 2026	51-200	39 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 · Oct 9, 2026 · View company records in RevenueBase
15	Iberastur Ingeniería	Exact match	Avilés, SpainHQ recorded Oct 9, 2026	51-200	38 contacts →
	Exact match “Iberastur es una empresa especializada en ingeniería industrial, reconocida por ofrecer soluciones técnicas avanzadas para optimizar la eficiencia y el rendimiento de…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16	Tecnium-Casals Cardona Ind. S.A	Exact match	Manresa, SpainHQ recorded Oct 9, 2026	51-200	37 contacts →
	Exact match “TECNIUM – Casals Cardona Ind, S.A.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17	Esqueiro	Exact match	A Coruña, SpainHQ recorded Oct 9, 2026	51-200	32 contacts →
	Exact match “ESQUEIRO, S.L.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18	Aguilera Ingenieros S.A	Exact match	Madrid, SpainHQ recorded Oct 9, 2026	11-50	29 contacts →
	Exact match “AGUILERA INGENIEROS es una empresa de ingeniería de proyectos complejos y de gran especialización con más de 50 años de experiencia.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19	Esparplant	Exact match	Orkoien, SpainHQ recorded Oct 9, 2026	11-50	28 contacts →
	Exact match “Esparplant es una empresa de ingeniería especializada en el diseño, asesoría y seguimiento de proyectos de construcción e instalaciones en plantas industriales.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20	Grupo Caldereria Rovira, S.L	Exact match	Celrà, SpainHQ recorded Oct 9, 2026	11-50	27 contacts →
	Exact match “Caldereria Rovira is serving the industry worlwide since 1918.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21	Indetec Grupo Vento	Exact match	Paterna, SpainHQ recorded Oct 9, 2026	11-50	26 contacts →
	Exact match “Grupo Vento es confianza y seguridad.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22	Ingpro ACK Ingenieros	Exact match	Cerdanyola Del Vallès, SpainHQ recorded Oct 9, 2026	11-50	23 contacts →
	Exact match “INGPRO ingenieros se enfoca principalmente en el desarrollo de proyectos industriales, diseño de procesos y proyectos legales para la consecución de licencias de obra y…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23	CPQ Ibérica S.A	Exact match	Mollet Del Vallés (barcelona), SpainHQ recorded Oct 9, 2026	11-50	21 contacts →
	Exact match “CPQ Ibérica, S.A.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24	Obres Tècniques Lloret	Exact match	La Garriga, SpainHQ recorded Oct 9, 2026	51-200	19 contacts →
	Exact match “Obres Tècniques Lloret es una empresa con más de 35 años de experiencia en sectores de alta exigencia como el químico-farmacéutico, el alimentario, el petroquímico o el de la…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25	Constructora Noray S.A	Exact match	Reus, SpainHQ recorded Oct 9, 2026	51-200	18 contacts →
	Exact match “Empresa fundada en 1980, especializada en la construcción de obra civil industrial, orientada a dar respuesta y servicio a las actuales y futuras necesidades de nuestros clientes.” Recorded in the RevenueBase company graph · Oct 9, 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 “chemical plant construction contractors”. 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 188 chemical plant construction contractors based in Spain

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Chemical plant construction contractors based in Spain at a glance

As of Oct 9, 2026

18.7%Verified-email coverage

83.6Average contacts per company

11-50Median size (employees)

11.7%Largest-city concentration · Madrid

Oct 9, 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 188 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 “chemical plant construction contractors” 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 2,942 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 October 9, 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 “chemical plant construction contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many chemical plant construction contractors are there based in Spain?

RevenueBase identified 188 company matches for chemical plant construction contractors associated with Spain as of October 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 chemical plant construction contractors?

Madrid leads with 22 company records, followed by Barcelona (6) and Gijon (6).

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 2,942 professional contacts with verified work emails tracked across these 188 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 October 9, 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.