Company lists · Data refreshed September 2026

Top 25 Carbon offset composting companies based in the United States

Name: Carbon offset composting companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 247 companies tracked

RevenueBase identified 247 carbon offset composting companies headquartered in the United States as of September 2026 and tracks 2,178 professional contacts across them, including 708 with verified work emails. Houston is the largest hub.

This list covers carbon offset composting companies 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 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

247Companies

2,178Contacts tracked

708Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest carbon offset composting companies based in the United States

Ranked by team size

Top 25 of 247 carbon offset composting companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to carbon offset composting 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	Denali	Indirect evidence	Russellville, AR, United StatesHQ checked Sep 19, 2026	1,001-5,000	319 contacts →
	Indirect evidence “We’re on a mission to replenish the earth by unlocking the value of unconsumed organic materials, transforming them into sustainable solutions.” Source: RevenueBase Database · checked Sep 19, 2026
2	Vanguard Renewables	Indirect evidence	Weston, MA, United StatesHQ checked Sep 19, 2026	201-500	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 19, 2026
3	Generate Upcycle	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	82 contacts →
	Indirect evidence “Generate Upcycle is a global leader in circular waste management, and the largest owner and operator of food waste-based organics recycling facilities in North America.” Source: RevenueBase Database · checked Sep 19, 2026
4	Mcgill Environmental Systems Mcgill Compost	Partial evidence	Cary, NC, United StatesHQ checked Sep 19, 2026	51-200	66 contacts →
	Partial evidence “McGill Environmental Systems is a pioneer and industry leader in the composting industry, transforming organic waste material into soil enrichment products.” Source: RevenueBase Database · checked Sep 19, 2026
5	Silver Creek Materials	Partial evidence	Fort Worth, TX, United StatesHQ checked Sep 19, 2026	51-200	63 contacts →
	Partial evidence “Silver Creek Materials is a mining and composting operation in West Fort Worth, Texas.” Source: RevenueBase Database · checked Sep 19, 2026
6	Agromin	Indirect evidence	Oxnard, CA, United StatesHQ checked Sep 19, 2026	51-200	34 contacts →
	Indirect evidence “Agromin, with facilities throughout California, manufactures earth-friendly soil products for farmers, government entities, landscapers and gardeners.” Source: RevenueBase Database · checked Sep 19, 2026
7	St. Louis Composting	Indirect evidence	Valley Park, MO, United StatesHQ checked Sep 19, 2026	51-200	28 contacts →
	Indirect evidence “As any seasoned gardener or landscaper knows, the most important thing you can do to enhance a lawn or garden is to cultivate better soil.” Source: RevenueBase Database · checked Sep 19, 2026
8	Atlas Organics	Indirect evidence	Spartanburg, SC, United StatesHQ checked Sep 19, 2026	201-500	27 contacts →
	Indirect evidence “Atlas Organics processes organic waste for municipalities, corporations, and residential properties.” Source: RevenueBase Database · checked Sep 19, 2026
9	The Climate Trust	Strong evidence	Portland, OR, United StatesHQ checked Sep 19, 2026	11-50	24 contacts →
	Strong evidence “As a pioneer and nationally-recognized leader in the carbon market, The Climate Trust develops, manages and invests in US-based carbon offset projects that reduce greenhouse gas…” Source: RevenueBase Database · checked Sep 19, 2026
10	Earth Matter NY	Indirect evidence	Ny, United StatesHQ checked Sep 19, 2026	1-10	21 contacts →
	Indirect evidence “About Earth Matter NY: Earth Matter NY Inc.” Source: RevenueBase Database · checked Sep 19, 2026
11	Scraps	Partial evidence	Denver, CO, United StatesHQ checked Sep 19, 2026	1-10	21 contacts →
	Partial evidence “Scraps makes composting more approachable and accessible for both businesses and households, diverting millions of pounds of organic material from landfills to instead return to…” Source: RevenueBase Database · checked Sep 19, 2026
12	Veransa Group, INC	Indirect evidence	Sarasota, FL, United StatesHQ checked Sep 19, 2026	51-200	20 contacts →
	Indirect evidence “Veransa specializes in transforming urban wood and yard waste into valuable organic commodities on an industrial scale.” Source: RevenueBase Database · checked Sep 19, 2026
13	Compost Crew	Partial evidence	Rockville, MD, United StatesHQ checked Sep 19, 2026	51-200	20 contacts →
	Partial evidence “Compost Crew is a locally-owned organics recycling business that offers simple, clean, and convenient composting to thousands of businesses, organizations and residential…” Source: RevenueBase Database · checked Sep 19, 2026
14	Black Earth Compost	Indirect evidence	Manchester-by-the-sea, MA, United StatesHQ checked Sep 19, 2026	51-200	17 contacts →
	Indirect evidence “Our mission is simple: divert nutrient rich food scraps from landfills and use them to enrich our soils here in New England.” Source: RevenueBase Database · checked Sep 19, 2026
15	Missouri Organic Recycling	Partial evidence	Kansas City, MO, United StatesHQ checked Sep 19, 2026	51-200	17 contacts →
	Partial evidence “After almost three decades, Missouri Organic Recycling is now the largest composting and mulch company in the Midwest.” Source: RevenueBase Database · checked Sep 19, 2026
16	Re-Nuble	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	1-10	17 contacts →
	Indirect evidence “Re-Nuble is a NYC-headquartered, MWBE-certified start-up company redefining the horticulture industry.” Source: RevenueBase Database · checked Sep 19, 2026
17	Compostnow	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 19, 2026	51-200	17 contacts →
	Indirect evidence “CompostNow is a solutions provider for organics recycling with expertise in hauling, logistics, consultation, production, and distribution of compost.” Source: RevenueBase Database · checked Sep 19, 2026
18	Bootstrap Compost, INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 19, 2026	11-50	16 contacts →
	Indirect evidence “Slaying waste since 2011, Bootstrap Compost is a leading compost pickup service operating throughout the Boston and Providence areas.” Source: RevenueBase Database · checked Sep 19, 2026
19	Green Mountain Technologies, INC	Partial evidence	Bainbridge Island, WA, United StatesHQ checked Sep 19, 2026	11-50	16 contacts →
	Partial evidence “Commercial Composting Solutions Green Mountain Technologies provides innovative commercial-duty composting solutions for a wide variety of clients.” Source: RevenueBase Database · checked Sep 19, 2026
20	Caldwell's	Indirect evidence	Morristown, IN, United StatesHQ checked Sep 19, 2026	51-200	15 contacts →
	Indirect evidence “Lower your environmental impact and achieve your sustainability goals.” Source: RevenueBase Database · checked Sep 19, 2026
21	Rust Belt Riders	Indirect evidence	Cleveland, OH, United StatesHQ checked Sep 19, 2026	1-10	15 contacts →
	Indirect evidence “Rust Belt Riders is an organic waste management company that provides employers a logistics-based alternative to landfills that is clean, timely, and benefits their community.” Source: RevenueBase Database · checked Sep 19, 2026
22	Wastenot, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “WasteNot Compost is the Chicagoland area’s largest and only zero-emissions compost collection service.” Source: RevenueBase Database · checked Sep 19, 2026
23	Bennett Compost	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 19, 2026	11-50	15 contacts →
	Indirect evidence “Collection of compostable materials from residents and businesses in Philadelphia area.” Source: RevenueBase Database · checked Sep 19, 2026
24	Engineered Compost Systems	Partial evidence	Seattle, WA, United StatesHQ checked Sep 19, 2026	11-50	14 contacts →
	Partial evidence “ECS offers best in class solutions to the compost industry including: TECHNICAL SERVICES: Running a composting facility is complicated business.” Source: RevenueBase Database · checked Sep 19, 2026
25	Organics Management	Indirect evidence	Winter Garden, FL, United StatesHQ checked Sep 19, 2026	51-200	14 contacts →
	Indirect evidence “At Organics Management, we are passionate about conserving the Earth’s resources.” Source: RevenueBase Database · checked Sep 19, 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: carbon offset composting 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 carbon offset composting companies.
Partial evidence: Its own public description names part of carbon offset composting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name carbon offset composting 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 25 of 247 carbon offset composting companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 708 reachable decision-makers.

Free signup · no credit card

View the full list →

Carbon offset composting companies based in the United States at a glance

As of Sep 19, 2026

32.5%Verified-email coverage

8.8Average contacts per company

1-10Median size (employees)

2.8%Largest-city concentration · Houston

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

158

11-50

51-200

201-500

1,001-5,000

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 247 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 carbon offset composting 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 the United States whose own description of what they do matches “carbon offset composting 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 carbon offset composting 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 carbon offset composting companies, 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, 708 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 carbon offset composting 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 carbon offset composting companies are there based in the United States?

RevenueBase identified 247 carbon offset composting companies 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?

Denali, headquartered in Russellville, tops this list with the largest team on record.

Which city has the most carbon offset composting companies?

Houston leads with 7 headquartered companies, followed by New York (7) and Denver (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 708 verified decision-maker contacts tracked across these 247 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.

Ready to reach these companies? Verified emails and direct dials for all 247 carbon offset composting companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Carbon offset composting companies by geography

Browse the directory

Browse: Companies home · All United States lists · All Carbon offset composting companies lists · New lists

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.