California · Nonprofit
INTERVAL HOUSE
INTERVAL HOUSE (California) receives grants from 61 organizations whose IRS filings report $4,289,318 to it, the largest being WALTMAR FOUNDATION ($843,000). 38 of them have funded it in more than one year.
- Revenue FY2025
- $11M
- Funders on record
- 61
- Grants received
- $4.3M
- Net assets
- $6.5M
What Interval House does
Mission
The mission of the organization is to ensure safety and stability for people who are battered, abused, homeless or at risk; to create public awareness about the epidemic of violence; and to mobilize the community to prevent violence and end this recurring phenomenon. Its goal is to restore a sense of dignity, self-sufficiency and increased independence in women, men, children and their families, enabling them to reclaim their lives and achieve long-term safety and success.
As stated on its FY2025 Form 990.
Programs
Shelter and housingInterval House is a six-time u.s. Presidential award-winning program, nationally recognized for pioneering comprehensive shelter and supportive services for victims of domestic violence and their children since 1979. The agency operates a full continuum of services at six emergency shelters and transitional housing sites, and 12 comprehensive community service and satellite centers in the high-risk communities of los angeles and orange counties. Since its doors first opened, Interval House has housed over 25,000 individuals, served over 3 million meals, and counseled over 800,000 victims. Interval House is distinguished by its unique cultural and linguistic expertise. Over 98% of Interval House's staff and advocates are multilingual, ethnically diverse, and have been personally affected by domestic violence - - offering comprehensive services in over 70 different languages. Although Interval House has historically specialized in intervention and prevention services for victims of domestic violence, it has expanded tremendously over the past 20 years into working with homelessness and housing issues. Interval House's multifaceted continuum of housing programs…
$5,140,379 spent60% of program spendingSupportive services and outreach since 1979, Interval House has successfully provided the community with carefully designed, award-winning support services under a comprehensive continuum of care model aimed at helping victims and their children achieve long-term safety, stability, and self-sufficiency. Interval House's innovative programs have been recognized with over 600 local, regional and national awards, including six presidential awards, seven california governor's awards, and a u.s. Department of justice award, citing Interval House as a "model" program to the nation.comprehensive and award-winning domestic violence programs include: multilingual 24-hour crisis hotlines ; 24-hour teen crisis hotlines; community service centers; individual and group counseling programs; comprehensive legal program; emergency response team program; health and wellness program; children's program; "second generation" teen dating violence prevention program; elder abuse program; pioneering multicultural programs; international institute against violence; leadership development program; financial empowerment and career development programs that have successfully helped economically vulnerable…
$3,449,352 spent40% of program spending
The 2 programs described on its FY2024 Form 990, listed largest first by expense. Program spending in total: $8,589,731.
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 2024 to 2025, from $6.3M to $7.4M (+18%).
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 86% · 2021 88% · 2022 87% · 2023 78% · 2024 79% · 2025 69%. Grants only. Government contracts and fees sit inside program revenue.
99% of INTERVAL HOUSE’s revenue is contributions — more reliant on donations than three-quarters of its peers (21% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 1 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
Carol A Williams
Executive director
As listed on its FY2025 Form 990.
Who funds it, year by year
2017 → 2023: the base broadened from 18 funders to 30 funders, grant income rose $282k → $607k.
15 of 61 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 18% 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 INTERVAL HOUSE’s funders (the co-funder graph). Top 30 of 61 funders by total. 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
INTERVAL HOUSE has a broad base — no single funder exceeds 20% of grant income, and it takes 5 funders to reach half.
the vertical line marks half of all grant income — 5 funders to its left
37% 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 INTERVAL HOUSE.
Largest funder’s share by year: 2017 28% · 2018 29% · 2019 31% · 2020 22% · 2021 25% · 2022 17% · 2023 13% — 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.
How long its funders stay
59% of INTERVAL HOUSE's funders are still giving 3 years after their first grant; 62% give in more than one year at all.
Share of funders still giving k years after their first recorded grant, pooled across every acquisition cohort. A funder counts as retained in a year only if it made a grant that year. Measured to FY2023, the last fiscal year that has finished arriving — a funder cannot be counted as lapsed in a year most filers have not reached.
Where its funders are
98% of INTERVAL HOUSE's grant income comes from California funders.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $792k arriving through sponsors registered in 12 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.
Against its field
INTERVAL HOUSE runs a healthier operating margin than three-quarters of the 2,396 human services nonprofits its size.
this organization peer median middle 50% of peers· 2,396 human services nonprofits $10M–$100M, FY2025
Government funding INTERVAL HOUSE receives
Grants and contracts to this organization from federal (USASpending) and state checkbooks, reconciled to its EIN. $10.0M on record.
- Department of Housing and Urban Development$7.7M
- Corporation for National and Community Service$1.2M
- Department of Justice$1.1M
Federal grants vs contracts are distinguished; state line items keep their reported category. Matched by name + geography (the BMF), so coverage is partial and precision-first.
Organizations like INTERVAL HOUSE
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 California
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
86% of spending goes to programs.
Governance
Public support
99%
Share of support from the public (Schedule A) — the basis for its public-charity status.
Footprint & structure
Files a return copy in 1 state
Part of a family of 1 related entity
- Interval House Charitable Properties · disregarded
Screen this organization
A dated, signed PDF of the compliance screen for INTERVAL HOUSE: 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 INTERVAL HOUSE?
- INTERVAL HOUSE (California) receives grants from 61 organizations whose IRS filings report $4,289,318 to it, the largest being WALTMAR FOUNDATION ($843,000). 38 of them have funded it in more than one year.
- How many funders does INTERVAL HOUSE have?
- IRS filings report 61 organizations giving $4,289,318 in grants to INTERVAL HOUSE, 38 of which have funded it in more than one year.
- Who is the largest funder of INTERVAL HOUSE?
- WALTMAR FOUNDATION is the largest funder on record, with $843,000 in grants. The full list of funders is on this page.
- How can an organization like INTERVAL HOUSE find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in California. 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 Interval House →
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 61 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 22, 2026. What this page cannot tell you · view filing