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Pennsylvania · Nonprofit

Society for Light Rythms and Circadian Health

Society for Light Rythms and Circadian Health (Pennsylvania) receives grants from 1 organization whose IRS filings report $750 to it, the largest being CENTER FOR ENVIRONMENTAL THERAPEUTICS INC ($750). 0 of them have funded it in more than one year.

Revenue FY2025
$62k
Funders on record
1
Grants received
$750
Net assets
$10k
0/1 repeat funders
01What it does

What Society for Light Rythms and Circadian Health does

Mission

Form 990-EZ, Part III - Primary Exempt Purpose: Exchange of information the field of light treatment and biological rhythms.

As stated on its FY2025 Form 990-EZ.

Program

  1. Annual Conference - Promotes research, professional development, and clinical applications applications related to light treatment and biological rythms.

    $32,267 spent
    100% of program spending

The program described on its FY2025 Form 990-EZ. Program spending in total: $32,267.

02The organization over time

The organization over time

Each line starts at 100 in 2017, so what you read is the shape rather than the size: 150 means half as much again as 2017, 50 means half. The number beside each label in the key is where it ended.

100 = 20172017 Revenue 100 ($34k) Expenses 100 ($37k) Net assets 100 ($12k)2018 Revenue 121 ($40k) Expenses 100 ($37k) Net assets 131 ($15k)2019 Revenue 139 ($46k) Expenses 110 ($40k) Net assets 183 ($22k)2020 Revenue 20 ($7k) Expenses 17 ($6k) Net assets 187 ($22k)2021 Revenue 43 ($15k) Expenses 54 ($20k) Net assets 143 ($17k)2022 Revenue 146 ($49k) Expenses 125 ($46k) Net assets 170 ($20k)2023 Revenue 191 ($64k) Expenses 202 ($74k) Net assets 82 ($10k)2024 Revenue 232 ($78k) Expenses 188 ($69k) Net assets 153 ($18k)2025 Revenue 184 ($62k) Expenses 188 ($69k) Net assets 87 ($10k)
'17'18'19'20'21'22'23'24'25
Revenue (184)Expenses (188)Net assets (87)

Balance sheet

Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2022 to 2023, from $20k to $10k (−52%).

$12k
$15k
$22k
$22k
$17k
$20k
$10k
$18k
$10k
'17'18'19'20'21'22'23'24'25
Total assetsTotal liabilities

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.

2017
2018
2019
2020
2021
2022
2023
2024
2025
ContributionsProgram revenueInvestmentOther

Surplus & reserves

Operating surplus or deficit each year, and months of liquidity in hand. 4 of the last 9 reported years ran a deficit.

−$3k
’17
$4k
’18
$6k
’19
$471
’20
−$5k
’21
$3k
’22
−$10k
’23
$8k
’24
−$7k
’25
03Who funds it

Who funds it, year by year

Grant support over time, funder by funder — shade shows the grant size each year.

Funder
'24*
total
funders
1

From the IRS filings of Society for Light Rythms and Circadian Health’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

Society for Light Rythms and Circadian Health draws 100% of its grant income from funders outside Pennsylvania, across 1 state in all.

MA

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.

04Its place in the field

Organizations like Society for Light Rythms and Circadian Health

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 Pennsylvania

Nationally

05Profile & governance

Read directly from this organization’s own Form 990, as neutral context.

Public support

100%

Share of support from the public (Schedule A) — the basis for its public-charity status.

Screen this organization

A dated, signed PDF of the compliance screen for Society for Light Rythms and Circadian Health: 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.

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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 Society for Light Rythms and Circadian Health?
Society for Light Rythms and Circadian Health (Pennsylvania) receives grants from 1 organization whose IRS filings report $750 to it, the largest being CENTER FOR ENVIRONMENTAL THERAPEUTICS INC ($750). 0 of them have funded it in more than one year.
How many funders does Society for Light Rythms and Circadian Health have?
IRS filings report 1 organization giving $750 in grants to Society for Light Rythms and Circadian Health.
Who is the largest funder of Society for Light Rythms and Circadian Health?
CENTER FOR ENVIRONMENTAL THERAPEUTICS INC is the largest funder on record, with $750 in grants. The full list of funders is on this page.
How can an organization like Society for Light Rythms and Circadian Health find more funders?
Start with the funders already giving here, then look at the foundations that back similar organizations in Pennsylvania. The funding by cause and by state pages list the largest funders for a given area and how to approach them.

These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2025 (financials across 2017–2025), 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