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EROWID CENTER

EIN 20-3256212 GRASS VALLEY, CA

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Revenue 2024
$423,518
Expenses 2024
$660,937

Program services were 83.4% of total expenses calculated — Part IX's program-services column over total expenses, both as filed.

As filed

Subsection
03
NTEE code
F99
Classification
1000
Street
1116 BOX PO

These codes are the IRS's own and are shown exactly as filed. What each one means is in the Business Master File documentation (opens in a new tab).

Mission and programs · 2024

Mission

To provide & facilitate access to objective, accurate, and non-judgmental information about psychoactive plants chemicals, drugs, technologies, and related issues. Erowid also supports and trains information providers and assists medical, legal, and scientific experts in developing resources.

Activities or mission (Part I)

To provide & facilitate access to objective, accurate, and non-judgmental information about psychoactive plants, chemicals, drugs, technologies, and related issues. Erowid also supports and trains information providers and assists medical, legal, and scientific experts in developing resources.

  • Erowid Center runs a laboratory drug checking program that analyzes the contents of street samples of psychoactive drugs, including: novel psychoactive substances (NPS); stimulants and euphoric stimulants; psychedelics; research chemicals; street heroin; fentanyl; and other opioids; as well as commercial and counterfeit pharmaceuticals. Samples are tested at a licensed laboratory and the results are published online at DrugsData.org. Erowid's DrugsData project also collects, manages, reviews, and presents laboratory-testing results from other US and international organizations. This information is made publicly available to help harm-reduction efforts, medical personnel, researchers, and the public. In 2024, 1,001 samples were tested through this project and 199 unique substances were detected. These results were published alongside results for 799 samples tested by other organizations. An average of 30,000 result pages were viewed per day, with an average 15,000 unique visitors per day. Results were regularly published on social media to Erowid's more than 180,000 followers. Erowid continued its partnerships with research groups doing lab validation of on-site analytical tools such as compact FTIR and fentanyl and xylazine test strips. A portion of the expenses and revenue associated with DrugsData research are included in the Drug Trend & Novel Psychoactive Substance and Research program services described below. This service was interrupted on April 10, 2024, due to an unexpected regulatory change and was unable to conduct operations through the end of 2024.

    Expenses $191,552 · Revenue $136,494

  • Erowid Center develops, maintains, and provides free access to an online collection of more than 96,700 documents, images, and other media files related to psychoactive plants and drugs. The collection contains information, essays and articles authored by a broad spectrum of contributors including health care professionals, substance abuse counselors, toxicologists, chemists, therapists, law enforcement agents, lawyers, anthropologists, experiential experts, writers, media, educators, and the general public. Note that Erowid's Experience Reports project is tracked as a separate program service. Erowid also shared information via social media accounts on Twitter, Instagram, and Facebook.

    Expenses $119,090

  • Erowid Center's mission includes collecting, organizing, and preserving resources about psychoactives for the historical record. In 2024, Erowid's primary archiving project was the Shulgin Collection. Erowid nearly completed digitizing Alexander and Ann Shulgin's personal papers, audio recordings, and documents. Erowid also organized, identified, and created metadata for digitized files. By the end of the year, Erowid had created index entries for 55,000 scanned documents in the collection of around 230,000 total scanned items. Erowid Center maintains a physical space designed to allow processing of historical archive collections (organizing, scanning, photographing, and digitizing) as well as permanent storage of some library archives/collections.

    Expenses $110,825

  • 4. Research, Surveys, & Research Improvement - Research, Surveys, & Research Improvement - In 2024, Erowid co-authored 4 published peer-reviewed journal articles. We participated in writing and submitting two additional papers, not published in 2024. We worked on multiple scientific/medical research projects as part of the Lab Validation subproject of our DrugsData program. Erowid improves scientific, medical, and sociological information about psychoactive substances and those who use them by promoting participation in studies and surveys produced by academics, educational institutions, and related organizations. Erowid works directly with scientists-in areas where we have specialized knowledge-to help design credible studies and provide editing, reviewing, and fact-checking for resulting academic publications. Several additional papers were published in academic journals using Erowid's Experience Vault data as a major part of their primary dataset. Erowid Center's resources are referenced in hundreds of journal articles, books, and media articles each year.

    Expenses $44,319 · Revenue $15,881

  • 5. Drug Trend & Novel Psychoactive Substance Tracking - Tracking new psychoactive medicines, technologies, research chemicals, psychedelics, and novel psychoactive substances (NPS) is one of Erowid Center's areas of expertise. With the objective of educating the public on the risks and benefits associated with emerging drugs, we 1) monitor the availability, use patterns, and effects of these substances through consultation with volunteers, allied organizations, medical professionals, submissions, and online forums; 2) analyze psychoactive chemicals through our DrugsData program (tracked as a separate project); 3) coordinate between experts and researchers in the field; 4) educate writers and authors for media, news, and books; and 5) publish information about these substances, online and in print. In 2024, Erowid's DrugsData encountered 35 unidentifiable novel substances in submitted samples. With the help of a network of international experts, we were able to identify 14 of these. Erowid worked with multiple groups to monitor the contents of street 'heroin'/down/dope/fentanyl as well as cocaine and methamphetamine. Erowid helped identify and characterize contaminants, synthesis byproducts, and novel substances. We leveraged our expertise to help develop systems to mitigate the societal damage of the "opioid epidemic", improve state- and city-level drug supply monitoring, and provide facts to help public health messaging around misrepresented and contaminated street drugs.

    Expenses $40,041

  • 6. Education and Educational Materials, Books, and Gifts - Erowid provided direct education services by answering online questions from the public via email, social media, and other communication systems. Erowid maintains a social media presence via Instagram, Twitter, Facebook, and LinkedIn through which we publish new information, drug checking results, news and research updates, and answer questions related to psychoactives. We distribute books, handouts, and teaching materials about psychoactive drugs, plants, practices, and technologies to members and the general public, furthering our educational mission.

    Expenses $18,015 · Revenue $4,951

  • 7. Experience Reports Collection - Erowid Center solicited, reviewed, and published first-hand reports of people's experiences with psychoactive plants, drugs, and technologies. Erowid's Experience Reports generated information about novel and classic psychoactive materials as well as aggregate data about why and how people use psychoactives, both for current factual documentation and for the historical record. Researchers, academics, medical professionals, and the public use the results for educational purposes and as data for peer-reviewed articles and publications. Reports are reviewed and edited before being published. Trained volunteers perform a portion of the work under the supervision of Erowid staff. In 2024, Erowid crew completed 5,112 "triages" (reading and rating an experience report), review-edited for publication 285, and published 238, ending the year with 42,926 published reports in the collection covering 890 substances. Approximately 21 million experience reports were viewed during the year.

    Expenses $15,306

  • 8. Events & Conferences - Erowid conducts educational outreach in person and online at conferences, seminars, festivals, and meetings. In 2024, we had monthly technical meetings with research partners monitoring street drug contents and contaminants as part of our DrugsData project until August 2024. Erowid Center spoke and participated in a four-day online conference about drug checking, lab analysis, and in-person street drug user direct care.

    Expenses $5,220

  • 9. Information Network - EEN - Erowid Center works with a network of both professionally trained and self-taught experts with knowledge about psychoactive plants, chemicals, and technologies. Erowid Expert Network (EEN) members volunteer to share their expertise for the purpose of educating the public and improving the quality of information about this topic. The EEN facilitates making connections between those who are seeking information and experts who can help them. This furthers Erowid Center's mission by helping to improve both internal and external educational resources through increased fact checking and review.

    Expenses $5,026

  • 10. Erowid Extracts Educational Newsletter - Erowid Center continued to collect information for a future newsletter issue centered on public drug checking and our DrugsData laboratory drug checking program (program expenses tracked separately). This advertisement-free print publication is distributed to members when published and past issues are distributed for free at conferences we attend. A complete digital version and constituent articles are later published online for free access by the general public. More than 17,000 copies of previous issues of Erowid Extracts were viewed/downloaded in 2024, and thousands of people read individual articles from previous issues online. Back issues were also distributed worldwide for free to related organizations, members, and events.

    Expenses $2,124

As filed on the 2024 return. The filer continues this part on Schedule O, which is not shown here.

Officers and directors · 2024

As listed in Part VII of the 2024 return, in the order the filer printed them. Each return names its own; this is not a roster the organization keeps with us.

  • C Blomquist

    Treasurer

    Total calculated
    $100,386
    From this org
    $81,000
    From related orgs
    $0
    Other
    $19,386
    Hours/week
    50

  • B Lincoln

    President

    Total calculated
    $100,386
    From this org
    $81,000
    From related orgs
    $0
    Other
    $19,386
    Hours/week
    60

  • J Dumpert

    Secretary

    Total calculated
    $0
    Hours/week
    1

  • E Fenster

    Director

    Total calculated
    $0
    Hours/week
    0.7

  • S Moore

    Director

    Total calculated
    $0
    Hours/week
    0.5

Compensation is as filed in Part VII: reportable pay from this organization and from related organizations, other compensation, and hours per week. The total, marked calculated, is our sum of the three dollar columns, with a blank column counted as $0; the form itself has no total. On a Form 990-EZ the columns are Part IV's instead, and on a Form 990-PF Part VIII's — compensation, contributions to benefit plans, and expense account — and the total sums those. Earlier years are each on their own filing page.

Filings

  • 2024
    Revenue
    $423,518
    Expenses
    $660,937
    Contributions
    $260,960
    Grants paid
    $100
  • 2023
    Revenue
    $703,768
    Expenses
    $775,164
    Contributions
    $308,191
    Grants paid
    $123
  • 2022
    Revenue
    $666,519
    Expenses
    $778,248
    Contributions
    $288,567
    Grants paid
    $2,160

The four totals the IRS asks for on Part I of the Form 990, as filed. A dash means the figure was not present on the return — not that it was zero.

Other returns filed

  • 2021 · 990

    Revenue
    $699,750
    Expenses
    $632,579
    Assets (EOY)
    $785,140

Nonprofiteer parses Forms 990, 990-EZ and 990-PF, in a window of recent tax years. These returns are recorded from the IRS e-file index, so their figures were extracted by that index rather than read from the return here — treat them as a different source from the filings above, not as more of the same record. A dash means the index carries no figure; Form 990-T listings carry none at all.

Grants made

No itemized grants to organizations. Schedule I is filed only by organizations that granted more than $5,000 to a recipient, so most filers have none.

Grants received

The 10 largest by cash amount. The API serves every itemized grant.

Other IRS files

Auto-Revocation List

Not listed. The IRS publishes this list for organizations whose exemption was automatically revoked for failing to file for three consecutive years.

Publication 78

Listed as of 11 November 2026, under deductibility PC.

These are two separate IRS files on two separate schedules, shown as published and not reconciled with each other. Neither is a statement about whether a contribution is deductible today: 19,245 organizations appear in Publication 78 while the IRS's own revocation file lists them as currently revoked, more than half of those revoked before 2019. Absence from Publication 78 is evidence of nothing, and presence is not evidence either. Verify current status with the IRS before relying on it.

What this page reflects

The registration facts above come from the IRS Business Master File published 9 November 2026 and read 9 November 2026, for every organization at once. Returns through tax year 2024, the newest we have parsed for this organization.