Company lists · Data refreshed September 2026

Top 23 Oilfield instrumentation companies based in Spain

Name: Oilfield instrumentation companies based in Spain
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 83 companies tracked

RevenueBase identified 83 oilfield instrumentation companies headquartered in Spain as of September 2026 and tracks 1,260 professional contacts across them, including 181 with verified work emails. Madrid is the largest hub.

This list covers oilfield instrumentation companies headquartered in Spain, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

83Companies

1,260Contacts tracked

181Verified emails

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The 23 largest oilfield instrumentation companies based in Spain

Ranked by team size

Top 23 of 83 oilfield instrumentation companies based in Spain, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to oilfield instrumentation companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Siemsa	Indirect evidence	Madrid, SpainHQ checked Sep 20, 2026	501-1,000	246 contacts →
	Indirect evidence “Siemsa es un operador independiente que proporciona servicios para el sector de la Energía, Industria y Oil and Gas, sistemas de control y analizadores de proceso, así como…” Source: RevenueBase Database · checked Sep 20, 2026
2	Iberfluid Instruments S.A	Indirect evidence	Hospitalet De Llobregat, SpainHQ checked Sep 20, 2026	51-200	105 contacts →
	Indirect evidence “Desde 1972 Iberfluid suministra instrumentos y sistemas para la medición y el control de procesos industriales.” Source: RevenueBase Database · checked Sep 20, 2026
3	Montrel	Indirect evidence	Sevilla, SpainHQ checked Sep 20, 2026	51-200	97 contacts →
	Indirect evidence “With over 60 years of experience, Montrel is a leading company in innovative comprehensive solutions in the energy and industrial sectors.” Source: RevenueBase Database · checked Sep 20, 2026
4	Fullgas	Indirect evidence	Madrid, SpainHQ checked Sep 20, 2026	51-200	94 contacts →
	Indirect evidence “Desarrollo y diseño de productosy servicios para los sectores petrolífico y medioambiental Áreas de actividad- TELEMETRÍA: Sistemas de control de tanques-lectura de contadores -…” Source: RevenueBase Database · checked Sep 20, 2026
5	Dipicell	Indirect evidence	Madrid, SpainHQ checked Sep 20, 2026	201-500	62 contacts →
	Indirect evidence “Dipicell es una empresa de servicios industriales especializada en electricidad, instrumentación, sistemas de control y medio ambiente.” Source: RevenueBase Database · checked Sep 20, 2026
6	Ineltron Solutions	Indirect evidence	Betanzos, SpainHQ checked Sep 20, 2026	201-500	58 contacts →
	Indirect evidence “INELTRON es una empresa multinacional especializada en la prestación de servicios de ingeniería, construcción, puesta en marcha, operación y mantenimiento en sistemas de…” Source: RevenueBase Database · checked Sep 20, 2026
7	Mecesa, Mecánica Egarense SA	Indirect evidence	Terrassa, SpainHQ checked Sep 20, 2026	11-50	42 contacts →
	Indirect evidence “En Mecesa ayudamos a las industrias en soluciones de proceso completas para diferentes problemas relacionados con instalaciones industriales en la mayoría de sectores.” Source: RevenueBase Database · checked Sep 20, 2026
8	Vega Instrumentos, S.A. España	Indirect evidence	Sant Cugat Del Vallès, SpainHQ checked Sep 20, 2026	11-50	36 contacts →
	Indirect evidence “VEGA es líder mundial en la medición de nivel y presión.” Source: RevenueBase Database · checked Sep 20, 2026
9	Gespasa	Indirect evidence	Balaguer, SpainHQ checked Sep 20, 2026	51-200	30 contacts →
	Indirect evidence “TOT COMERCIAL SA, GESPASA’s manufacturer, celebrates the 50th anniversary since our first product manufacture.” Source: RevenueBase Database · checked Sep 20, 2026
10	Anton Paar Spain	Indirect evidence	Madrid, SpainHQ checked Sep 20, 2026	11-50	29 contacts →
	Indirect evidence “Fundada en 1922 en Graz (Austria), Anton Paar diseña, fabrica y distribuye instrumentos de precisión para laboratorio y sistemas de medición para proceso, utilizados en…” Source: RevenueBase Database · checked Sep 20, 2026
11	Contagas, S.A	Indirect evidence	Barcelona, SpainHQ checked Sep 20, 2026	11-50	24 contacts →
	Indirect evidence “CONTAGAS is a company specialized in the distribution of industrial equipment for regulation, measurement and control of fluids in Spain, Portugal and projects at an international…” Source: RevenueBase Database · checked Sep 20, 2026
12	Eliwell Ibérica	Indirect evidence	Paterna, SpainHQ checked Sep 20, 2026	11-50	24 contacts →
	Indirect evidence “Empresa especializada en controles electrónicos y sistemas de supervisión de instalaciones.” Source: RevenueBase Database · checked Sep 20, 2026
13	Cetil Dispensing Technology, S.L	Indirect evidence	Algete, SpainHQ checked Sep 20, 2026	51-200	23 contacts →
	Indirect evidence “Cetil Dispensing Technology S.L.” Source: RevenueBase Database · checked Sep 20, 2026
14	Bürkert Fluid Control Systems Ibérica	Indirect evidence	Sant Joan Despí, SpainHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “WE MAKE IDEAS FLOW Bürkert Fluid Control Systems es uno de los principales fabricantes mundiales de sistemas de medición, control y regulación de fluidos y gases.” Source: RevenueBase Database · checked Sep 20, 2026
15	Ibor Valves S.L	Indirect evidence	Castellar Del Valles, SpainHQ checked Sep 20, 2026	51-200	18 contacts →
	Indirect evidence “IBOR VALVES is a reliable company committed to providing highest quality valves to their partners.” Source: RevenueBase Database · checked Sep 20, 2026
16	Prematecnica, S.A	Indirect evidence	Madrid, SpainHQ checked Sep 20, 2026	11-50	14 contacts →
	Indirect evidence “PREMATECNICA was founded in 1961 in Madrid (Spain).” Source: RevenueBase Database · checked Sep 20, 2026
17	Trafag España	Indirect evidence	Zamudio, SpainHQ checked Sep 20, 2026	1-10	10 contacts →
	Indirect evidence “Somos una empresa Suiza dedicada a la fabricación de equipos de presión, temperatura y densidad, con una trayectoria de más de 70 años y con presencia en más de 40 países.” Source: RevenueBase Database · checked Sep 20, 2026
18	Lana Sarrate, S.A	Indirect evidence	Barcelona, SpainHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “We are specialists in measuring: flow, level, pressure, temperature, quality of water, gasses, etc.” Source: RevenueBase Database · checked Sep 20, 2026
19	Unitecno Sistemas	Partial evidence	Barcelona, SpainHQ checked Sep 20, 2026	11-50	7 contacts →
	Partial evidence “UNITECNO is a Spanish industrial engineering company specializing in the design, manufacturing, and supply of industrial filters, pressure vessels, valves, instrumentation, and…” Source: RevenueBase Database · checked Sep 20, 2026
20	Equiptank Engineering SL	Indirect evidence	Anglesola, SpainHQ checked Sep 20, 2026	51-200	7 contacts →
	Indirect evidence “At Equiptank we design and manufacture high added value solutions for oil and gas logistics: tank truck fittings, electronic sealed parcel systems, equipments for terminals and…” Source: RevenueBase Database · checked Sep 20, 2026
21	DTS Instruments, S.L	Indirect evidence	Manresa, SpainHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “Con el fiel compromiso de mantener el mejor SERVICIO y Honestidad con nuestros CLIENTES, en dTS Instruments nos dedicamos a la faricación de elementos primarios de temperatura…” Source: RevenueBase Database · checked Sep 20, 2026
22	TECOP	Indirect evidence	Cerceda, SpainHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “TECOP, S.A.” Source: RevenueBase Database · checked Sep 20, 2026
23	OTC Industries	Indirect evidence	Olot, SpainHQ checked Sep 20, 2026	11-50	3 contacts →
	Indirect evidence “OTCIndustries es una ingeniería tecnológica de instrumentación y control industrial, que aporta soluciones de valor añadido.” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: oilfield instrumentation companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names oilfield instrumentation companies.
Partial evidence: Its own public description names part of oilfield instrumentation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oilfield instrumentation companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 23 of 83 oilfield instrumentation companies based in Spain

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Oilfield instrumentation companies based in Spain at a glance

As of Sep 20, 2026

14.4%Verified-email coverage

15.2Average contacts per company

11-50Median size (employees)

21.7%Largest-city concentration · Madrid

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 83 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among oilfield instrumentation companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Spain whose own description of what they do matches “oilfield instrumentation companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names oilfield instrumentation companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among oilfield instrumentation companies, and records with no verified work email. Companies headquartered outside Spain are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 181 across the full list. 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 September 20, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names oilfield instrumentation companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many oilfield instrumentation companies are there based in Spain?

RevenueBase identified 83 oilfield instrumentation companies headquartered in Spain as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Siemsa, headquartered in Madrid, tops this list with the largest team on record.

Which city has the most oilfield instrumentation companies?

Madrid leads with 18 headquartered companies, followed by Barcelona (8) and Argame (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 181 verified decision-maker contacts tracked across these 83 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 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 Smart Search, 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.