Nevada · Nonprofit
300 STEWART AVENUE CORPORATION
300 STEWART AVENUE CORPORATION (Nevada) receives grants from 14 organizations whose IRS filings report $1,158,372 to it, the largest being STANLEY W EKSTROM FOUNDATION INC ($592,607). 9 of them have funded it in more than one year.
- Revenue FY2024
- $1.6M
- Funders on record
- 14
- Grants received
- $1.2M
- Net assets
- $44M
What 300 Stewart Avenue Corporation does
Mission
See schedule oto advance the public understanding of organized crime's history and impact on american society.key tenets of this mission include: operating as a financially independent and self-sustaining organization that contributes to the growth and vibrancy of downtown las vegas. Providing accurate storytelling that portrays the roots and evolution of organized crime in america, in an authentic and entertaining manner. Creating dynamic and interactive experiences that explore the criminal justice system's efforts and innovations in the fight against organized crime. Engaging diverse audiences in discourse about social conditions, individual choices and consequences, contemporary issues, and other topics that relate to organized crime. Preserving artifacts, objects, and digital records that serve as educational resources, connecting both the academic community and the general public to people and events of historical significance. Honoring the accomplishments
As stated on its FY2024 Form 990.
Program
300 Stewart Avenue Corporation, more commonly known as [or doing business as] the mob museum, is an interactive museum dedicated to the history of organized crime and law enforcement. The museum presents a bold and authentic view of organized crime's impact on las vegas history and its unique imprint on america and the world. The museum presents the real stories and actual events of mob history via interactive and engaging exhibits that reveal all sides of the story about the role of organized crime in the us. The mob museum offers multiple perspectives and provides a contemporary, engaging, challenging and educational experience.
$1,859,912 spent100% of program spending
The program described on its FY2024 Form 990. Program spending in total: $1,859,912.
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. 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 2023 to 2024, from $88M to $46M (−47%).
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 20% · 2021 18% · 2022 14% · 2023 8% · 2024 40%. Grants only. Government contracts and fees sit inside program revenue.
70% of 300 STEWART AVENUE CORPORATION’s revenue is contributions — more donation-reliant than the typical peer (63% for the typical peer).
Surplus & reserves
Operating surplus or deficit each year, and months of liquidity in hand. 6 of the last 8 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
Jonathan Ullman
President & CEO
Board chair
Steven Martinez
Chair, board of directors
As listed on its FY2024 Form 990.
Who funds it, year by year
2017 → 2023: the base broadened from 1 funder to 8 funders, grant income rose $19k → $326k.
5 of 14 of your funders are donor-advised or pass-through sponsors (tagged DAF) — 11% 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 300 STEWART AVENUE CORPORATION’s funders (the co-funder graph). Top 13 of 14 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
300 STEWART AVENUE CORPORATION leans on a few funders — its largest provides 51% of grant income and the top three 90%; half comes from just 1 funder.
the vertical line marks half of all grant income — 1 funder to its left
45% 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 300 STEWART AVENUE CORPORATION.
Largest funder’s share by year: 2017 100% · 2018 100% · 2019 100% · 2020 64% · 2021 84% · 2022 65% · 2023 42% — 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
67% of 300 STEWART AVENUE CORPORATION's funders are still giving 3 years after their first grant; 64% 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
300 STEWART AVENUE CORPORATION draws 58% of its grant income from funders outside Nevada, across 4 states in all.
In-state vs out-of-state, by year
Funder states come from each funder’s own filing. $123k arriving through sponsors registered in 4 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
300 STEWART AVENUE CORPORATION holds deeper cash reserves than three-quarters of the 5,127 arts & culture nonprofits its size.
this organization peer median middle 50% of peers· 5,127 arts & culture nonprofits $1M–$10M, FY2024
Organizations like 300 STEWART AVENUE CORPORATION
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 Nevada
Nationally
Read directly from this organization’s own Form 990, as neutral context.
Where the money goes
37% of spending goes to programs.
Governance
Public support
89%
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 3 related entities
- 300 Stewart Avenue Qalicb LLC · partnership
- 300 Stewart Avenue Lessee LLC · partnership
- 300 Stewart Avenue Taxable LLC · corp_trust
Screen this organization
A dated, signed PDF of the compliance screen for 300 STEWART AVENUE CORPORATION: 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 300 STEWART AVENUE CORPORATION?
- 300 STEWART AVENUE CORPORATION (Nevada) receives grants from 14 organizations whose IRS filings report $1,158,372 to it, the largest being STANLEY W EKSTROM FOUNDATION INC ($592,607). 9 of them have funded it in more than one year.
- How many funders does 300 STEWART AVENUE CORPORATION have?
- IRS filings report 14 organizations giving $1,158,372 in grants to 300 STEWART AVENUE CORPORATION, 9 of which have funded it in more than one year.
- Who is the largest funder of 300 STEWART AVENUE CORPORATION?
- STANLEY W EKSTROM FOUNDATION INC is the largest funder on record, with $592,607 in grants. The full list of funders is on this page.
- How can an organization like 300 STEWART AVENUE CORPORATION find more funders?
- Start with the funders already giving here, then look at the foundations that back similar organizations in Nevada. 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 300 Stewart Avenue →
These figures are read directly from IRS Form 990 / 990-PF e-file XML: this organization’s own return for FY2024 (financials across 2017–2024), and the filings of 14 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