Company lists · Data refreshed October 2026

Top 25 Chemical engineering contractors based in Spain

Name: Chemical engineering 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 522 companies tracked

RevenueBase identified 522 company matches for chemical engineering contractors associated with Spain as of October 2026 and tracks 17,845 professional contacts across them, including 3,092 with verified work emails. Madrid is the largest hub.

This list covers company matches for chemical engineering 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

522Companies

17,845Contacts tracked

3,092Verified emails

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The 25 largest chemical engineering contractors based in Spain

Ranked by team size

Top 25 of 522 company matches for chemical engineering 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	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
3	JG Ingenieros S.A	Exact match	Barcelona, SpainHQ recorded Oct 9, 2026	51-200	359 contacts →
	Exact match “JG Ingenieros, S.A.” 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	Nadico	Exact match	Parets Del Vallès, SpainHQ recorded Oct 9, 2026	51-200	158 contacts →
	Exact match “Nadico es una empresa especializada en la prestación de servicios técnicos de ingeniería, arquitectura y consultoría industrial.” 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	Instra Ingenieros	Exact match	A Coruña, SpainHQ recorded Oct 9, 2026	51-200	142 contacts →
	Exact match “Instra Ingenieros, empresa de ingeniería y consultoría, aporta creatividad e innovación en sus servicios para el desarrollo industrial y empresarial.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8	Techno PRO Hispania	Exact match	Cartagena, SpainHQ recorded Oct 9, 2026	201-500	140 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 · Oct 9, 2026 · View company records in RevenueBase
9	Eia21	Exact match	Erandio, SpainHQ recorded Oct 9, 2026	51-200	120 contacts →
	Exact match “Founded in 1979, EIA21 was chartered with the aim of responding to the engineering needs of high growth industrial companies, soon achieved a strong footprint in this area…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10	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
11	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
12	Emurtel	Exact match	El Palmar (murcia), SpainHQ recorded Oct 9, 2026	51-200	96 contacts →
	Exact match “Emurtel es una compañía líder de ingeniería y consultoría multidisciplinar orientada a la gestión integral de proyectos, ofreciendo soluciones de valor añadido en el diseño…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
13	Ct3 Ingeniería	Exact match	Majadahonda, SpainHQ recorded Oct 9, 2026	51-200	79 contacts →
	Exact match “The work of CT3 Ingeniería is aimed at ensuring utmost customer satisfaction through project engagement and commitment, while favouring the professional and personal development…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	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
15	Grupo Cartago Ingenieros	Exact match	Madrid, SpainHQ recorded Oct 9, 2026	51-200	64 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 · Oct 9, 2026 · View company records in RevenueBase
16	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
17	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
18	Syltec	Exact match	Valladolid, SpainHQ recorded Oct 9, 2026	51-200	51 contacts →
	Exact match “SYLTEC es una empresa independiente, constituída con el objetivo de ofrecer servicios integrales de ingeniería, consultoría y formación a nivel nacional.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19	Axiom Ingeniería	Exact match	Madrid, SpainHQ recorded Oct 9, 2026	51-200	45 contacts →
	Exact match “AXIOM ha sido constituida como consecuencia de la unión de un grupo de técnicos cualificados, provenientes de diferentes empresas de servicios, con especializaciones en…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20	Opex Energy	Exact match	Barcelona, SpainHQ recorded Oct 9, 2026	11-50	45 contacts →
	Exact match “Opex Energy is an engineering and technical assistance company.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21	Tectrol, S.A	Exact match	Barcelona, SpainHQ recorded Oct 9, 2026	51-200	43 contacts →
	Exact match “Providing general engineering services and highly specialized in Process Control.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22	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
23	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
24	Gashor	Exact match	Zizurkil, SpainHQ recorded Oct 9, 2026	51-200	36 contacts →
	Exact match “At Gashor, we help to optimise the performance of companies that use industrial ingredients in their processes or want to make the leap to automating their recipes.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25	Mottus	Exact match	Jaén, SpainHQ recorded Oct 9, 2026	n/a	35 contacts →
	Exact match “MOTTUS was founded in Jaén in 2019 with the aim of improving the production processes of companies, making use of the most advanced and innovative technology.” 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 engineering 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 522 chemical engineering contractors based in Spain

See the full list, filter by size, metro and specialty, and access 3,092 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Chemical engineering contractors based in Spain at a glance

As of Oct 9, 2026

17.3%Verified-email coverage

34.2Average contacts per company

1-10Median size (employees)

10.9%Largest-city concentration · Madrid

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

284

11-50

168

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 522 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 engineering 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 3,092 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.

Chemical engineering contractors by metro

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 engineering contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many chemical engineering contractors are there based in Spain?

RevenueBase identified 522 company matches for chemical engineering 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 engineering contractors?

Madrid leads with 57 company records, followed by Barcelona (31) and Seville (22).

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 3,092 professional contacts with verified work emails tracked across these 522 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.