Company lists · Data refreshed September 2026
Top 25 Harm reduction programs worldwide
RevenueBase identified 197 harm reduction programs worldwide as of September 2026 and tracks 1,637 professional contacts across them, including 518 with verified work emails. The United States is the largest market and Oakland the largest hub.
This list covers harm reduction programs 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 20, 2026. Country and city lists for harm reduction programs 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 harm reduction programs worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 110 contacts → | ||||
Partial evidence “Our Mission: With a commitment to partnership, support, and advocacy, Stonehenge delivers expert services to individuals, families, and communities experiencing harm related to…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 64 contacts → | ||||
Indirect evidence “Formerly the Public Defender Association, Purpose.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 56 contacts → | ||||
Indirect evidence “Addiction Recovery Systems restores lives by providing state of the art treatment to individuals affected by the disease of addiction.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 50 contacts → | ||||
Strong evidence “The Ana Liffey Drug Project is a "Low Threshold - Harm Reduction" service.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 49 contacts → | ||||
Indirect evidence “Barod is the Welsh word for 'ready'.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 36 contacts → | ||||
Strong evidence “We Help Ourselves (WHOS) provides therapeutic programs aimed at achieving recovery from alcohol and other drug dependence, incorporating harm reduction and co-existing mental…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 34 contacts → | ||||
Indirect evidence “We meet every person where they are at.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 30 contacts → | ||||
Indirect evidence “Free Clinic is a hospital & health care company based out of 14 Schijnpoortweg, Antwerpen, Belgium.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 29 contacts → | ||||
Strong evidence “Sonoran Prevention Works is a statewide harm reduction nonprofit working to build a healthy Arizona with people who use drugs.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 27 contacts → | ||||
Strong evidence “Harm Reduction Victoria (HRVic) is a not for profit, community organisation for people who use drugs.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 25 contacts → | ||||
Partial evidence “Issue des programmes d'échange de seringues créés durant l'épidémie de VIH-SIDA dans les années 80, Gaïa-Paris gère plusieurs programmes de réduction des risques liés à l'usage de…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 23 contacts → | ||||
Indirect evidence “Using rebellious love to improve wellness for Floridians impacted by drug use since 2016.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 23 contacts → | ||||
Strong evidence “The Lower East Side Harm Reduction Center (LESHRC) is a culturally diverse community based non-profit organization whose mission is to reduce the spread of HIV/AIDS and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 22 contacts → | ||||
Strong evidence “Sunshine House is a community drop-in and resource centre focusing on harm reduction, population health promotion, and social inclusion.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 22 contacts → | ||||
Indirect evidence “Le Bus 31/32, créée en 2006, est une émanation de Médecins du Monde (MDM), dont cette mission avait débutée en 1994 dans le contexte de l’épidémie de VIH.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 21 contacts → | ||||
Strong evidence “A fully equipped harm reduction, mental health and addictions services facility in Parkdale, ON.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 21 contacts → | ||||
Indirect evidence “Première ligne est une association de réduction des risques liés à la consommation de substances psycho-actives, créée en septembre 2004, à Genève.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 21 contacts → | ||||
Strong evidence “We aim to help spread awareness about the growing opioid epidemic, as well as promote harm reduction in our community.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 18 contacts → | ||||
Strong evidence “North Carolina Harm Reduction Coalition (NCHRC) is a statewide grassroots organization dedicated to the implementation of harm reduction interventions, public health strategies…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 17 contacts → | ||||
Indirect evidence “Spectre de rue est un organisme à but non lucratif fondé en 1986 et situé dans le quartier Centre-Sud.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 17 contacts → | ||||
Strong evidence “Zendo Project offers professional harm reduction education to communities and organizations and provides peer support services at events to help transform difficult psychedelic…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 16 contacts → | ||||
Partial evidence “Penington Institute's focus is clear: reduce serious drug harms and save lives.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 16 contacts → | ||||
Strong evidence “Project Weber/RENEW is a peer-based harm reduction and recovery services organization providing overdose and HIV prevention, street outreach, case management, and basic needs…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 16 contacts → | ||||
Indirect evidence “Mainline is dedicated to improve the health and quality of life of people who use drugs.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 13 contacts → | ||||
Indirect evidence “The mission of is to connect those impacted by drug use in Baltimore city to high-quality healthcare services and address any obstacles that might threaten that connection.” Source: RevenueBase Database · checked Sep 20, 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: harm reduction programs. 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 harm reduction programs.
- Partial evidence
- Its own public description names part of harm reduction programs, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name harm reduction programs. 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 197 harm reduction programs worldwide
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Harm reduction programs worldwide at a glance
As of Sep 20, 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 harm reduction programs, 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 harm reduction programs are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “harm reduction programs”. 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 harm reduction programs), 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 harm reduction programs, 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, 518 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 20, 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.
Harm reduction programs by location
1 lists · largest firstEvery Harm reduction programs list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 harm reduction programs, 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 harm reduction programs are there worldwide?
RevenueBase identified 197 harm reduction programs 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?
Stonehenge Therapeutic Community, headquartered in Guelph, tops this list with the largest team on record.
Which country has the most harm reduction programs?
The United States leads with 81 companies. Every harm reduction programs list by country and city is linked on this page.
Which city has the most harm reduction programs?
Oakland leads with 4 headquartered companies, followed by Philadelphia (4) and Athens (3).
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 518 verified decision-maker contacts tracked across these 197 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 20, 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.