Virginia · Nonprofit
INTERNATIONAL LYME AND ASSOCIATED DISEASES SOCIETY INC
INTERNATIONAL LYME AND ASSOCIATED DISEASES SOCIETY INC (Virginia) receives grants from 1 organization whose IRS filings report $438 to it, the largest being THE LEWIS M & ESTHER PERLSTEIN FAMILY FOUNDATION ($438). 0 of them have funded it in more than one year.
- Revenue FY2025
- $1.1M
- Funders on record
- 1
- Grants received
- $438
- Net assets
- $158k
What International Lyme and Associated Diseases Society Inc does
Mission
An international medical society whose mission is to disseminate scientific knowledge and enhance clinical expertise relating to Lyme and Associated diseases. Supports a collaborative effort among scientists, researchers, healthcare providers, and others.
As stated on its FY2025 Form 990.
Programs
ILADS holds an annual scientific conference to advance the clinical knowledge, diagnosis, and treatment of Lyme and Associated vector-borne diseases. Sessions are designed to teach medical professionals the cutting-edge techniques of diagnosis and treatment, explore pathophysiological mechanisms of chronic diseases, enhance collaboration between community clinicians and university scientists, and to encourage initiation and publication of clinical studies.
$476,819 spent$677,561 earned by the program71% of program spendingThe organization hold international, regional, and virtual meetings and conferences to provide updates for medical professionals on advances in clinical knowledge, treatment techniques, and the opportunity for collaboration between scientists, physicians, and other professionals who care for patients with Lyme and associated vector-borne diseases.
$193,578 spent$135,287 earned by the program29% of program spendingILADS members receive access to members-only discussion forums, complementary webinars, a members-only newsletter, opportunities to join committees and network with medical professionals with similar interests and concerns, as well as discounts, on courses, and various events.
$246,436 earned by the programOther program services, not described on the e-filed return.
$0 spent0% of program spending
The 4 programs described on its FY2025 Form 990, listed largest first by expense. Program spending in total: $670,397.
The organization over time
Each line starts at 100 in 2020, so what you read is the shape rather than the size: 150 means half as much again as 2020, 50 means half. The number beside each label in the key is where it ended. The shaded band is where the middle 50% of its peers' revenue would sit, given their growth.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2021 to 2022, from $332k to $416k (+25%).
How it's funded, over time
Each bar is one year's revenue split into where it came from, and every bar is the same height — these are shares, not amounts, so a year that raised twice as much looks the same size. Hover a bar for the split.
Government-grant reliance: 2020 0% · 2021 15% · 2024 0% · 2025 0%. Grants only. Government contracts and fees sit inside program revenue.
23% of INTERNATIONAL LYME AND ASSOCIATED DISEASES SOCIETY INC’s revenue is contributions — about as donation-reliant as the typical peer (61% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 4 of the last 6 reported years ran a deficit.
reserve
Leadership and staff
The officers, directors, trustees and key employees listed on each return. Joined and no longer listed compare each filing with the year before, matching people by surname and first initial; a year after a gap, or a roster under three people, has no comparison.
Chief executive
Sarah Quillen CEO
Executive Director
As listed on its FY2025 Form 990.
The chief executive listed changed between the FY2022 and FY2023, and between the FY2023 and FY2024 filings.
Who funds it, year by year
Grant support over time, funder by funder — shade shows the grant size each year.
From the IRS filings of INTERNATIONAL LYME AND ASSOCIATED DISEASES SOCIETY INC’s funders (the co-funder graph). Association, not causation. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Where its funders are
INTERNATIONAL LYME AND ASSOCIATED DISEASES SOCIETY INC draws 100% of its grant income from funders outside Virginia, across 1 state in all.
Funder states come from each funder’s own filing. Trends are read to FY2023, the last fiscal year that has finished arriving. FY2024–FY2026 are still being filed and are shown unshaded; they do not move any figure on this page.
Against its field
INTERNATIONAL LYME AND ASSOCIATED DISEASES SOCIETY INC has grown faster than half of the 2,127 community improvement nonprofits its size.
this organization peer median middle 50% of peers· 2,127 community improvement nonprofits $1M–$10M, FY2025
Organizations like INTERNATIONAL LYME AND ASSOCIATED DISEASES SOCIETY INC
Organizations whose mission and program text most resemble this one, by semantic similarity over every organization in the US filings — the closest peers, and often the clearest route to shared or prospective funders.
In Virginia
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Governance
Footprint & structure
Part of a family of 1 related entity
- International Lyme and Associated Diseases · exempt
Screen this organization
A dated, signed PDF of the compliance screen for INTERNATIONAL LYME AND ASSOCIATED DISEASES SOCIETY INC: IRS status (Business Master File, Publication 78, auto-revocation), the OFAC sanctions lists, the Internal Revenue Bulletin, and California registration, with the Rev. Proc. 2018-32 §8.01 reliance elements stated element by element. Generated from the current files at the moment you download it.
Screens are triage, not determinations; a source that cannot be read reports not screened, never clear. Screen this nonprofit · How the screen works · on the API as GET /api/screening/{ein}?format=pdf
Questions and answers
- Who funds INTERNATIONAL LYME AND ASSOCIATED DISEASES SOCIETY INC?
- INTERNATIONAL LYME AND ASSOCIATED DISEASES SOCIETY INC (Virginia) receives grants from 1 organization whose IRS filings report $438 to it, the largest being THE LEWIS M & ESTHER PERLSTEIN FAMILY FOUNDATION ($438). 0 of them have funded it in more than one year.
- How many funders does INTERNATIONAL LYME AND ASSOCIATED DISEASES SOCIETY INC have?
- IRS filings report 1 organization giving $438 in grants to INTERNATIONAL LYME AND ASSOCIATED DISEASES SOCIETY INC.
- Who is the largest funder of INTERNATIONAL LYME AND ASSOCIATED DISEASES SOCIETY INC?
- THE LEWIS M & ESTHER PERLSTEIN FAMILY FOUNDATION is the largest funder on record, with $438 in grants. The full list of funders is on this page.
- How can an organization like INTERNATIONAL LYME AND ASSOCIATED DISEASES SOCIETY INC find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Virginia. The funding by cause and by state pages list the largest funders for a given area and how to approach them.
Play a game about who funds International Lyme and Associated Diseases Society →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2020–2025), and the filings of 1 funders that report grants to it. “On record” means captured in the filings we have parsed — a funder that does not e-file, or whose grant detail is not itemized, will not appear. Filings run roughly 12–24 months behind. Trends on this page end at FY2023, the last fiscal year that has finished arriving; later years are shown and marked, and move no figure. Data on this page was exported October 14, 2026. What this page cannot tell you · view filing