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Pennsylvania · Nonprofit

Building Biology Institute Corp

Building Biology Institute Corp (Pennsylvania) receives grants from 6 organizations whose IRS filings report $237,047 to it, the largest being TIDES FOUNDATION ($129,000). 3 of them have funded it in more than one year, and 59% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.

Revenue FY2025
$331k
Funders on record
6
Grants received
$237k
Net assets
$171k
3/6 repeat funderspeak grant-dependency 17%
01What it does

What Building Biology Institute Corp does

Mission

Educate regarding healthy buildings.

As stated on its FY2025 Form 990.

Programs

  1. Various other programs regarding best practices for identifying and remediating hazards to human health such as indoor climate, cell phones, electrical home wiring, etc. Also certification classes for BBEC,BBP,and EMRS.

    $122,353 spent
    100% of program spending
  2. Natural Healthy Building seminar that teaches building design and construction best practices to avoid or minimize indoor hazards to human health. Various other programs regarding best practices for identifying and remediating hazards to human health such as indoor climate, cell phones electrical home wiring, etc. Also certification classes for BBEC, BBP, and EMRS.

    $0 spent
    0% of program spending

The 2 programs described on its FY2025 Form 990, listed largest first by expense. Program spending in total: $122,353.

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 ($270k) Expenses 100 ($282k) Net assets 100 ($38k)2018 Revenue 169 ($457k) Expenses 131 ($369k) Net assets 331 ($127k)2019 Revenue 169 ($457k) Expenses 140 ($396k) Net assets 314 ($120k)2020 Revenue 212 ($573k) Expenses 116 ($329k) Net assets 1036 ($397k)2021 Revenue 142 ($383k) Expenses 111 ($314k) Net assets 1258 ($482k)2022 Revenue 179 ($484k) Expenses 225 ($634k) Net assets 865 ($331k)2023 Revenue 132 ($356k) Expenses 209 ($589k) Net assets 533 ($204k)2024 Revenue 125 ($339k) Expenses 164 ($464k) Net assets 441 ($169k)2025 Revenue 123 ($331k) Expenses 85 ($241k) Net assets 445 ($171k)
'17'18'19'20'21'22'23'24'25
Revenue (123)Expenses (85)Net assets (445)

Balance sheet

Total assets and total liabilities at each year end, in dollars. The largest one-year move in total assets was 2019 to 2020, from $202k to $448k (+121%).

$148k
$137k
$202k
$448k
$530k
$379k
$252k
$169k
$171k
'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

Government-grant reliance: 2021 5% · 2022 3% · 2023 13% · 2024 6% · 2025 9%. Grants only. Government contracts and fees sit inside program revenue.

Surplus & reserves

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

−$12k
’17
$88k
’18
$61k
’19
$244k
’20
$69k
’21
−$149k
’22
−$233k
’23
−$125k
’24
$91k
’25
8.5
months of
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.

'17'18'19'20'21'22'23'24'25
Listed888999956
Joined·+0+0+2+0+0+0+3+2
No longer listed·00100071
03Who funds it

Who funds it, year by year

2018 → 2023: the base broadened from 1 funder to 4 funders, grant income fell $79k → $56k.

3 of 6 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 59% 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 Building Biology Institute Corp’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

Building Biology Institute Corp leans on a few funders — its largest provides 54% of grant income and the top three 95%; half comes from just 1 funder.

the vertical line marks half of all grant income — 1 funder to its left

59% 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 Building Biology Institute Corp.

54%
largest funder
95%
top three
~3
effective funders

Largest funder’s share by year: 2018 100% · 2019 81% · 2020 100% · 2021 99% · 2022 99% · 2023 55% — 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

59% of Building Biology Institute Corp's grant income arrives through donor-advised or pass-through sponsors, whose addresses record where the money is held rather than where the donor is. Of the $98k that is directly attributable, 100% of it comes from funders outside Pennsylvania, across 3 states.

CA
DE
NM

In-state vs out-of-state, by year

’19
’20
’21
’22
’23
Pennsylvania out of state home

Funder states come from each funder’s own filing. $140k arriving through sponsors registered in 3 states 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.

04Its place in the field

Organizations like Building Biology Institute Corp

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.

Where the money goes

51% of spending goes to programs.

Program 51%Management 49%Fundraising 0%

Governance

5
board members
100%
independent
✓Conflict-of-interest policy–Whistleblower policy–Document retention✓Board reviewed the 990–Audited financials

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 Building Biology Institute Corp: 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.

A paid feature, included from the $75 plan up. Sign in to download.

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 Building Biology Institute Corp?
Building Biology Institute Corp (Pennsylvania) receives grants from 6 organizations whose IRS filings report $237,047 to it, the largest being TIDES FOUNDATION ($129,000). 3 of them have funded it in more than one year, and 59% of the money arrives through donor-advised or pass-through sponsors rather than from an institution directly.
How many funders does Building Biology Institute Corp have?
IRS filings report 6 organizations giving $237,047 in grants to Building Biology Institute Corp, 3 of which have funded it in more than one year.
Who is the largest funder of Building Biology Institute Corp?
TIDES FOUNDATION is the largest funder on record, with $129,000 in grants. The full list of funders is on this page.
How can an organization like Building Biology Institute Corp 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.

Play a game about who funds Building Biology Institute →

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 6 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