Company lists · Data refreshed September 2026
Top 25 Biogas consulting firms worldwide
RevenueBase identified 3,931 biogas consulting firms worldwide as of September 2026 and tracks 36,168 professional contacts across them, including 8,878 with verified work emails. Germany is the largest market and Pune the largest hub.
This list covers biogas consulting firms worldwide, 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 27, 2026. Country and city lists for biogas consulting firms follow the table.
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 biogas consulting firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 695 contacts → | ||||
Indirect evidence “GPS Renewables is India's leading full-stack biofuels firm, offering technology & EPC to project development solutions for bioCNG, Ethanol & Green H2.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 578 contacts → | ||||
Indirect evidence “Since 1991, Applied Consultants Inc.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 502 contacts → | ||||
Indirect evidence “REVERGY nace mediante un proyecto de profesionales procedentes de diferentes ámbitos del sector de las energías renovables con el fin de presentar un proyecto marcado por la…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 397 contacts → | ||||
Indirect evidence “Established in 1997, Equinox is a distinguished EPCM service provider globally.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 362 contacts → | ||||
Partial evidence “Prodeval is leader in treatment and Biogas upgrading from the Anaerobic Digestion of organic waste.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 351 contacts → | ||||
Indirect evidence “Ingeniería y Consultoría Energética orientada a la búsqueda y el desarrollo de soluciones energéticas de alta eficiencia para sus Clientes.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 298 contacts → | ||||
Partial evidence “SÓLIDA, a Bureau Veritas Company, is an independent company founded in 2007 that provides high added-value engineering and consulting services within the renewable energy sector.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 240 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 235 contacts → | ||||
Indirect evidence “Anaergia was created to eliminate a major source of greenhouse gases by cost effectively turning organic waste into renewable natural gas (biomethane), fertilizer and water.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 226 contacts → | ||||
Partial evidence “SgurrEnergy was originally established in Glasgow, UK in 2002 with an aim to excel in renewable energy consulting.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 216 contacts → | ||||
Indirect evidence “We are turning waste into value.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 191 contacts → | ||||
Partial evidence “Vector Renewables offers professional consulting services in the renewable energy industry, specializing in wind, solar and hydro.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 171 contacts → | ||||
Indirect evidence “The World Leader in Combustion and Environmental Systems Zeeco, Inc.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 167 contacts → | ||||
Partial evidence “Sunkonnect is a leading energy transition and renewable energy consulting company delivering end-to-end engineering, quality assurance, project management consultancy, and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 166 contacts → | ||||
Partial evidence “IMPRINT: EEnviTec Biogas AG covers the entire value chain for the production of biogas, including the planning and construction of biogas plants and biogas upgrading plants as…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 160 contacts → | ||||
Indirect evidence “Bioenerys is the 100% subsidiary of Snam s.p.a.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 154 contacts → | ||||
Indirect evidence “PRF Gas Solutions, founded in 1991, is a leading company in gas technology and infrastructure with a strong global presence.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 142 contacts → | ||||
Partial evidence “Established in 2010, Future Biogas is at the forefront of the anaerobic digestion industry.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 132 contacts → | ||||
Partial evidence “St1 Biokraft aims to become the leading biogas player in the Nordics.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 132 contacts → | ||||
Indirect evidence “Ivys Adsorption offers high-performance, innovative technological solutions for purifying renewable gas, along with a broad range of equipment for treating, compressing, and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 131 contacts → | ||||
Partial evidence “Geo was born from the vision of a team of entrepreneurs, inspired by the advancement of biodigestion technology-especially in Europe-and aware of the vital potential of biogas in…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 123 contacts → | ||||
Partial evidence “As the Largest producer of Bio Methane in Asia, KIS Group stands as a pioneering force in Biogas energy and waste management, with a 19-year track record of innovation and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 122 contacts → | ||||
Indirect evidence “Welcome to SDS Petroleum Consultants company page In Scott Stovall founded SDS Petroleum Consultants L.L.C.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 121 contacts → | ||||
Partial evidence “Halker Consulting provides custom engineered and configured services in Project Assessment and Planning, Engineering and Design, & Consulting and Implementation Guidance.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 114 contacts → | ||||
Indirect evidence “Sitra ofrece soluciones y servicios integrales e innovadores para la gestión eficiente y sostenible del agua en la industria, de la generación de gases renovables y de la…” Source: RevenueBase Database · checked Sep 27, 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: biogas consulting firms. 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 biogas consulting firms.
- Partial evidence
- Its own public description names part of biogas consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name biogas consulting firms. 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 3,931 biogas consulting firms worldwide
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Biogas consulting firms worldwide at a glance
As of Sep 27, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 biogas consulting firms, 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.
- Coverage
- Every country. Country and city lists for biogas consulting firms are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “biogas consulting firms”. 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 biogas consulting firms), 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 biogas consulting firms, and records with no verified work email.
- 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, 8,878 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 27, 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.
Biogas consulting firms by location
21 lists · largest firstEvery Biogas consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Biogas consulting firms based in Germany371
- Biogas consulting firms based in India326
- Biogas consulting firms based in the United States295
- Biogas consulting firms based in France228
- Biogas consulting firms based in Italy220
- Biogas consulting firms based in Brazil217
- Biogas consulting firms based in Spain200
- Biogas consulting firms based in the United Kingdom174
- Biogas consulting firms based in Türkiye107
- Biogas consulting firms based in Canada84
- Biogas consulting firms based in the Netherlands74
- Biogas consulting firms based in Denmark64
- Biogas consulting firms based in Poland62
- Biogas consulting firms based in Australia49
- Biogas consulting firms based in Switzerland45
- Biogas consulting firms based in Belgium43
- Biogas consulting firms based in Mexico43
- Biogas consulting firms based in Sweden42
- Biogas consulting firms based in South Africa35
- Biogas consulting firms based in Austria30
- Biogas consulting firms based in Greece28
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 biogas consulting firms, 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 biogas consulting firms are there worldwide?
RevenueBase identified 3,931 biogas consulting firms worldwide 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?
GPS Renewables, headquartered in Bangalore, tops this list with the largest team on record.
Which country has the most biogas consulting firms?
Germany leads with 371 companies, followed by India (326) and the United States (295). Every biogas consulting firms list by country and city is linked on this page.
Which city has the most biogas consulting firms?
Pune leads with 43 headquartered companies, followed by Madrid (33) and London (29).
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 8,878 verified decision-maker contacts tracked across these 3,931 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 27, 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.