Company lists · Data refreshed September 2026
Top 25 Anaerobic digestion consulting firms worldwide
RevenueBase identified 750 anaerobic digestion consulting firms worldwide as of September 2026 and tracks 6,306 professional contacts across them, including 2,347 with verified work emails. The United States is the largest market and Pune the largest hub.
This list covers anaerobic digestion 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 anaerobic digestion 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 anaerobic digestion consulting firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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. | |||||
| 2 | 234 contacts → | ||||
Indirect evidence “Vanguard Renewables is a national leader in food and beverage waste recycling and organic waste-to-renewable energy solutions.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 176 contacts → | ||||
Indirect evidence “Paques helps companies and municipalities contribute to the major challenges of today: to reduce their water and carbon footprints and reclaim valuable resources.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 142 contacts → | ||||
Strong 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. | |||||
| 5 | 112 contacts → | ||||
Indirect evidence “BTS Biogas is an Italian company specialized in developing and producing tailor-made and technology-intensive Biogas and Biomethane plants.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 108 contacts → | ||||
Indirect evidence “Biogas pioneer since 1998.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 106 contacts → | ||||
Indirect evidence “We claim to be a one-stop-shop partner for all your manure management related needs.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 96 contacts → | ||||
Partial evidence “Integrity Environmental Solutions is an engineering and consulting firm offering integrated landfill gas (LFG) and solid waste services.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 91 contacts → | ||||
Indirect evidence “Biogas Engineering is an award winning, one of the fastest growing companies in field of Renewable Natural Gas.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 90 contacts → | ||||
Indirect evidence “We are a leading renewable energy company specialising in organic waste recycling and the largest producer of renewable energy from food waste in the UK.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 90 contacts → | ||||
Strong evidence “VINCI Environnement is involved in the engineering, design and built of turnkey renewable energy production units, in particular those using anaerobic digestion processes, and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 89 contacts → | ||||
Indirect evidence “DP CleanTech is a world leader in providing efficient and flexible waste to energy and environmental management technologies.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 87 contacts → | ||||
Indirect evidence “L'entreprise néos est spécialisée dans la conception et la réalisation d'usines de traitement de déchets clés en main.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 87 contacts → | ||||
Indirect evidence “Environmental Dynamics International (EDI) specializes in the research, development and application of advanced technology aeration and biological treatment solutions.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 74 contacts → | ||||
Indirect evidence “ESI is a leader in biogas and renewable energy services, providing innovative solutions for the design, build, and operation of biogas-to-energy facilities.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 69 contacts → | ||||
Indirect evidence “GME is an approved 'A Class' consultant of Kerala State Pollution Control Board.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 68 contacts → | ||||
Indirect evidence “Fundada no Brasil em 2020, com sede em São Paulo, a Gruen conta com um time de engenharia atuando tanto localmente quanto na Alemanha que assegura o desenvolvimento do processo…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 63 contacts → | ||||
Indirect evidence “Since 1982, Merrell Bros, Inc.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 62 contacts → | ||||
Indirect evidence “PlanET étudie, construit et optimise des installations de méthanisation agricoles.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 61 contacts → | ||||
Partial evidence “Cornerstone, A Tetra Tech Company, is an engineering consulting and field service firm dedicated to providing services to the solid waste industry and commercial, industrial, and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 58 contacts → | ||||
Indirect evidence “Since its foundation in 2001, the WELTEC Group from Vechta in Lower Saxony, Germany, has been contributing to the success of the energy transition.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 50 contacts → | ||||
Partial evidence “BEL Environmental Engineering, LLC (BEL) is a solid waste consulting firm that specializes in landfill construction quality assurance (CQA) and landfill gas (LFG) systems.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 49 contacts → | ||||
Indirect evidence “The future is green!” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 46 contacts → | ||||
Partial evidence “Smith+Gardner is an employee-owned, industry-leading solid waste consulting engineering firm committed to delivering sound, innovative solid waste solutions.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 45 contacts → | ||||
Indirect evidence “Naskeo est une société française spécialisée dans le biogaz.” 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: anaerobic digestion 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 anaerobic digestion consulting firms.
- Partial evidence
- Its own public description names part of anaerobic digestion consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name anaerobic digestion 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 750 anaerobic digestion consulting firms worldwide
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Anaerobic digestion 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 anaerobic digestion 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 anaerobic digestion consulting firms are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “anaerobic digestion 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 anaerobic digestion 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 anaerobic digestion 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, 2,347 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.
Anaerobic digestion consulting firms by location
6 lists · largest firstEvery Anaerobic digestion consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Anaerobic digestion consulting firms based in the United States112
- Anaerobic digestion consulting firms based in the United Kingdom72
- Anaerobic digestion consulting firms based in Germany60
- Anaerobic digestion consulting firms based in France52
- Anaerobic digestion consulting firms based in Italy37
- Anaerobic digestion consulting firms based in Canada25
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 anaerobic digestion 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 anaerobic digestion consulting firms are there worldwide?
RevenueBase identified 750 anaerobic digestion 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?
Anaergia, headquartered in Burlington, tops this list with the largest team on record.
Which country has the most anaerobic digestion consulting firms?
The United States leads with 112 companies, followed by the United Kingdom (72) and Germany (60). Every anaerobic digestion consulting firms list by country and city is linked on this page.
Which city has the most anaerobic digestion consulting firms?
Pune leads with 6 headquartered companies, followed by Sao Paulo (6) and London (5).
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 2,347 verified decision-maker contacts tracked across these 750 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.