Company lists · Data refreshed September 2026
Top 25 Anaerobic digestion consulting firms based in the United States
RevenueBase identified 112 anaerobic digestion consulting firms headquartered in the United States as of September 2026 and tracks 1,429 professional contacts across them, including 763 with verified work emails. Boise is the largest hub.
This list covers anaerobic digestion consulting firms headquartered in the United States, 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.
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 based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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. | |||||
| 2 | 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. | |||||
| 3 | 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. | |||||
| 4 | 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. | |||||
| 5 | 63 contacts → | ||||
Indirect evidence “Since 1982, Merrell Bros, Inc.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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. | |||||
| 7 | 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. | |||||
| 8 | 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. | |||||
| 9 | 41 contacts → | ||||
Indirect evidence “On a planet with over seven billion people, our mission is to re-imagine reusable resources to create a valuable supply chain of products for farms, food processors and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 39 contacts → | ||||
Indirect evidence “Settje Agri-Services and Engineering was founded in 1997 with the goal of providing engineering and compliance related services to the livestock production sector.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 29 contacts → | ||||
Indirect evidence “At Triplepoint Environmental, we believe lagoons do it better.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 26 contacts → | ||||
Indirect evidence “Perennial Energy is a design and manufacturing company specializing in biogas processing systems and equipment.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 23 contacts → | ||||
Partial evidence “AGPROfessionals is a comprehensive agricultural consulting company.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 23 contacts → | ||||
Strong evidence “BIOFerm is headquartered in Madison, Wisconsin and provides turnkey anaerobic digestion, gas upgrading and solar power systems across the US and Canada.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 20 contacts → | ||||
Indirect evidence “Material Matters, Inc is a focused group with expertise in residuals and biosolids management.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 20 contacts → | ||||
Indirect evidence “In 1986, three engineers left a large engineering firm to establish Applied Technologies, Inc.(ATI).” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 19 contacts → | ||||
Indirect evidence “Taurus Biogas is a leading provider of comprehensive management services for biogas facilities.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 17 contacts → | ||||
Indirect evidence “Our journey began 25 year ago, when we were established to meet the need for innovative and cost-effective turnkey solutions to wastewater treatment.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 17 contacts → | ||||
Partial evidence “Advanced Process Solutions (APS) is a full-service consulting firm offering a wide variety of technical services to an impressive list of worldwide clients.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 12 contacts → | ||||
Partial evidence “Digester Doc is a research laboratory in Boise, Idaho, that specializes in working with anaerobic digesters to maximize energy output, lowering our carbon footprint or generating…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 12 contacts → | ||||
Indirect evidence “OMNI Water Consultants is composed of a small group of water and wastewater professionals dedicated to the municipal and rural water district markets.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 12 contacts → | ||||
Indirect evidence “Nutrient Advisors consults the livestock industry across the Midwest in the area of environmental compliance, permitting, and manure-nutrient management.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 11 contacts → | ||||
Strong evidence “Sevana Bioenergy develops, designs, owns and operates large-scale anaerobic digestion projects which produce renewable natural gas and organic based soil amendments.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 11 contacts → | ||||
Indirect evidence “Clean Methane Systems advances solutions at the waste and energy nexus, developing innovative approaches that transform challenges into profitable renewable energy opportunities.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 11 contacts → | ||||
Indirect evidence “PDI custom designs and installs sophisticated, high-performing energy systems and residual waste management solutions that are easy to use, built to last, and meet even the most…” 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 112 anaerobic digestion consulting firms based in the United States
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Anaerobic digestion consulting firms based in the United States at a glance
As of Sep 27, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 112 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 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.
- What qualifies
- Companies headquartered in the United States 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. Companies headquartered outside United States 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, 763 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.
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 based in the United States?
RevenueBase identified 112 anaerobic digestion consulting firms headquartered in the United States 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?
Vanguard Renewables, headquartered in Weston, tops this list with the largest team on record.
Which city has the most anaerobic digestion consulting firms?
Boise leads with 4 headquartered companies, followed by Gainesville (3) and Madera (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 763 verified decision-maker contacts tracked across these 112 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.
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