Company lists · Data refreshed September 2026
Top 25 Biofilter suppliers based in Spain
RevenueBase identified 161 biofilter suppliers headquartered in Spain as of September 2026 and tracks 1,352 professional contacts across them, including 194 with verified work emails. Barcelona is the largest hub.
This list covers biofilter suppliers 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 19, 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.
The 25 largest biofilter suppliers based in Spain
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 83 contacts → | ||||
Indirect evidence “ECOTEC - Ecología Técnica, S.A.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 79 contacts → | ||||
Indirect evidence “Protec Arisawa is the global leader for the design and the manufacturing of FRP (Fiber Reinforced Plastic) Pressure Vessels for membrane filtration systems.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 59 contacts → | ||||
Indirect evidence “UN EQUIPO DE EXPERTOS PARA UNA DECISIÓN 100% SEGURA En Grupo Cartés somos expertos en la propuesta de soluciones de filtración y tratamiento de materia en cualquier estado…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 53 contacts → | ||||
Indirect evidence “Manufacturer and wholesale exporter of equipment for water treatment, both domestic and industrial, specializing in: reverse osmosis, filtration, ultrafiltration, MBR…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 43 contacts → | ||||
Indirect evidence “Cimico es una empresa que ofrece biotecnologías para el tratamiento de aguas residuales.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 43 contacts → | ||||
Indirect evidence “CAMFIL - LÍDER MUNDIAL EN FILTRACIÓN DE AIRE Y SOLUCIONES DE AIRE LIMPIO Durante más de medio siglo, Camfil ha ayudado a las personas a respirar un aire más limpio.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 43 contacts → | ||||
Indirect evidence “Los productos Kinetico resuelven los problemas de calidad del agua de familias y negocios de todo el mundo, con el fin de garantizar que las ventajas del tratamiento de aguas…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 25 contacts → | ||||
Indirect evidence “Fluytec, with a proud legacy spanning over 45 years in the water filtration sector, stands as a distinguished Spanish Engineering and Manufacturing entity.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 25 contacts → | ||||
Indirect evidence “DORSAN® is a company specialized in liquid filtration.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 24 contacts → | ||||
Indirect evidence “We manufacture equipment for solid-liquid separation; filter presses, belt filters, vacuum filters, pressure filters, among many others.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 18 contacts → | ||||
Indirect evidence “Filternox is an Automatic Self-Cleaning Filter manufacturing company.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 17 contacts → | ||||
Indirect evidence “Piedmont Pacific is a global leader in corrosion resistant equipment for desalination plants and meets critical customer demand for a wide range of applications in the industrial…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 17 contacts → | ||||
Indirect evidence “En DAGA investigamos, desarrollamos y fabricamos equipos especializados para la depuración y tratamiento del agua desde el año 1965.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 16 contacts → | ||||
Indirect evidence “We are an environmental engineering company that provides comprehensive solutions for wastewater treatment and air pollution control for all industrial activities.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 16 contacts → | ||||
Indirect evidence “Gesfilter was born in 1995 with the mission of offering the industry the best alternative in the microfiltration of all types of fluids.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 15 contacts → | ||||
Indirect evidence “En Andefil somos especialistas en filtros de aire y ventilación industrial a medida Le ofrecemos una amplia gama de productos para cubrir sus necesidades de filtración durante el…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 15 contacts → | ||||
Indirect evidence “Founded in Terrassa in 1992, Venfilter is today the only company in the sector with 100% national capital.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 13 contacts → | ||||
Indirect evidence “LUYMAR es el fabricante español con el catálogo más amplio de recuperadores de calor de producción propia, y la primera empresa en España en desarrollar esta tecnología.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 12 contacts → | ||||
Indirect evidence “Envirotecnics is an environmental technology company specialized in the manufacturing, maintenance, and distribution of equipment and systems for the treatment and monitoring of…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11 contacts → | ||||
Indirect evidence “Somos una empresa dedicada al tratamiento de aguas, urbanas e industriales, con una amplia trayectoria de más de 26 años.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 10 contacts → | ||||
Indirect evidence “Nature Works is a filter media made from virgin granulated glass, designed to replace silica sand in any standard filter available on the market and intended for both…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 9 contacts → | ||||
Indirect evidence “We are an engineering company with more than 40 years of experience, specialized in the implementation of projects for the treatment of industrial wastewater with our own…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 7 contacts → | ||||
Indirect evidence “Desde 1993 hemos apostado por la especialización como único canal para alcanzar los mejores resultados en todas y cada una de nuestras acciones de colaboración con nuestros…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 7 contacts → | ||||
Indirect evidence “Filtraglass is a water treatment company specializing in the manufacturing of water filtration systems for the glass industry.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 7 contacts → | ||||
Indirect evidence “IAQ & HVAC+R Technologies” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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: biofilter suppliers. 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 biofilter suppliers.
- Partial evidence
- Its own public description names part of biofilter suppliers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name biofilter suppliers. 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 25 of 161 biofilter suppliers based in Spain
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Biofilter suppliers based in Spain at a glance
As of Sep 19, 2026Companies by employee count
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 161 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 biofilter suppliers, 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 “biofilter suppliers”. 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 biofilter suppliers), 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 biofilter suppliers, 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, 194 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 19, 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 biofilter suppliers, 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 biofilter suppliers are there based in Spain?
RevenueBase identified 161 biofilter suppliers 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?
Ecotec, headquartered in Sallent, tops this list with the largest team on record.
Which city has the most biofilter suppliers?
Barcelona leads with 10 headquartered companies, followed by Madrid (9) and Gijon (4).
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 194 verified decision-maker contacts tracked across these 161 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 19, 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.