New York · Nonprofit
ILLUMINATING ENGINEERING SOCIETY
ILLUMINATING ENGINEERING SOCIETY (New York) receives grants from 3 organizations whose IRS filings report $106,500 to it, the largest being ILLUMINATING ENGINEERING SOCIETY NEW YORK SECTION ($44,000). 2 of them have funded it in more than one year.
- Revenue FY2024
- $5.8M
- Funders on record
- 3
- Grants received
- $107k
- Net assets
- $3.4M
What Illuminating Engineering Society does
Mission
The Illuminating Engineering Society ("ies") seeks to improve the lighting environment by bringing together those with lighting knowledge and by translating that knowledge into actions that benefit the public.
As stated on its FY2024 Form 990.
Programs
On its FY2024 return the organization reported a significant change in how it conducts a program.
Ceased to produce its monthly magazine "ld+a magazine" which was sold to a publishing company.
Its own explanation, from Schedule O of that return (Part III, line 3).
Educational conferences: see schedule o
$2,546,389 spent$2,358,288 earned by the program41% of program spendingStandards, education, technical committees: see schedule o
$1,733,196 spent$1,044,890 earned by the program28% of program spendingMembership: see schedule o
$1,943,502 spentof which $33,605 as grants$34,871 earned by the program31% of program spending
The 3 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $6,223,087.
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.
Balance sheet
Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2023 to 2024, from $13M to $4.0M (−69%).
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: 2021 12% · 2022 10%. Grants only. Government contracts and fees sit inside program revenue.
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 5 of the last 5 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
Colleen Harper
Executive director & CEO
As listed on its FY2024 Form 990.
The chief executive listed changed between the FY2022 and FY2023 filings.
Who funds it, year by year
2017 → 2022: the base broadened from 1 funder to 2 funders, grant income rose $10k → $57k.
1 of 3 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 21% of grant dollars received. That money is really individual donors directing a sponsor; the institutions to cultivate are the non-DAF funders.
From the IRS filings of ILLUMINATING ENGINEERING SOCIETY’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.
How concentrated its funding is
ILLUMINATING ENGINEERING SOCIETY leans on a few funders — its largest provides 41% of grant income and the top three 100%; half comes from just 2 funders.
the vertical line marks half of all grant income — 2 funders to its left
100% of the income these shares are computed over arrives through pass-through sponsors or from payers whose filings do not say what kind of payment it is. Concentration is still measured over all of it, because the money is real; what it does not support is a claim about how many institutions have chosen to fund ILLUMINATING ENGINEERING SOCIETY.
Largest funder’s share by year: 2017 100% · 2018 50% · 2019 100% · 2020 100% · 2022 78% — diversifying over time.
“Effective funders” = inverse Herfindahl index (1 / Σ shareᵢ²) — the number of equal-sized funders that would give the same concentration. 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
52% of ILLUMINATING ENGINEERING SOCIETY's grant income comes from New York funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $23k arriving through sponsors registered in 1 state is excluded from the map and the split above: a sponsor holds money on a donor’s behalf, so its registered address would place those dollars somewhere no donor need ever have been. 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.
Organizations like ILLUMINATING ENGINEERING SOCIETY
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 New York
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
76% of spending goes to programs.
Governance
Public support
75%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Screen this organization
A dated, signed PDF of the compliance screen for ILLUMINATING ENGINEERING SOCIETY: 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 ILLUMINATING ENGINEERING SOCIETY?
- ILLUMINATING ENGINEERING SOCIETY (New York) receives grants from 3 organizations whose IRS filings report $106,500 to it, the largest being ILLUMINATING ENGINEERING SOCIETY NEW YORK SECTION ($44,000). 2 of them have funded it in more than one year.
- How many funders does ILLUMINATING ENGINEERING SOCIETY have?
- IRS filings report 3 organizations giving $106,500 in grants to ILLUMINATING ENGINEERING SOCIETY, 2 of which have funded it in more than one year.
- Who is the largest funder of ILLUMINATING ENGINEERING SOCIETY?
- ILLUMINATING ENGINEERING SOCIETY NEW YORK SECTION is the largest funder on record, with $44,000 in grants. The full list of funders is on this page.
- How can an organization like ILLUMINATING ENGINEERING SOCIETY find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in New York. 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 Illuminating Engineering Society →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2020–2024), and the filings of 3 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