Rust Foundation

  • Dover, DE
  • EIN: 85-4376974

Organization summary

Organization summary might be incomplete or out of date

This organization is not listed in the IRS's most recent list of tax exempt organizations, but we have data associated with this Employer Identification Number.

Type of Nonprofit

Designated as a Business leagues, chambers of commerce, real estate boards, etc, created for the improvement of business conditions.

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Organizations with gross receipts of less than $50,000 can file the form 990-N postcard filing, which doesn’t include financial details. All Form 990 data is from the IRS.

Fiscal Year Ending Dec.
2025

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$5,274,907
Expenses
$4,810,306
Net Income
$464,601
Net Assets
$2,766,130
Notable Sources of Revenue Percent of Total Revenue
Contributions $2,711,081
51.4%
Program Services $2,458,266
46.6%
Investment Income $105,560
2.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $545,987
11.4%
Professional Fundraising Fees $0
Other Salaries and Wages $1,871,954
38.9%
Assets/Debt
Total Assets $3,881,934
Total Liabilities $1,115,804
Net Assets $2,766,130
Compensation
Key Employees and Officers Compensation Related Other
Rebecca Rumbul (Executive Director) $410,351 $0 $0
Walter Pearce (Security Engineer) $336,243 $0 $31,815
Joel Marcey (Director Of Technology) $236,960 $0 $31,000
Jon Bauman (Software Engineer) $228,454 $0 $27,030
Tobias Bieniek (Software Engineer) $201,880 $0 $12,081
Adam Harvey (Software Engineer) $166,830 $0 $7,411
Abi Broom (Director Of Finance & Operations) $124,333 $0 $11,303
Nell Shamrell-harrington (Chair) $0 $0 $0
Jakob Degen (Director (thru 10/2025)) $0 $0 $0
Santiago Pastorino (Director (thru 10/2025)) $0 $0 $0
Eli Gild (Director (thru 10/2025)) $0 $0 $0
Andrew Wafaa (Director (from 11/2025)) $0 $0 $0
Jack Huey (Director (from 10/2025)) $0 $0 $0
Rohan Patil (Director (from 10/2025)) $0 $0 $0
Alexandru Radovici (Director) $0 $0 $0
Peixin Hou (Director) $0 $0 $0
Niko Matsakis (Director (from 10/2025)) $0 $0 $0
Jeffrey Vander Stoep (Director) $0 $0 $0
Eric Garcia (Secretary (thru 10/2025)) $0 $0 $0
Scott Mcmurray (Treasurer (thru 10/2025)) $0 $0 $0
Lars Bergstrom (Chair (thru 1/2025)) $0 $0 $0
David Wood (Secretary (from 10/2025)) $0 $0 $0
Seth Markle (Treasurer) $0 $0 $0
Ryan Levick (Vice Chair) $0 $0 $0
Carol Nichols (Director) $0 $0 $0
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Document Links

990
Filed on Aug. 24, 2026

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2024

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$4,289,364
Expenses
$3,794,143
Net Income
$495,221
Net Assets
$2,301,529
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,772,325
41.3%
Program Services $2,340,885
54.6%
Investment Income $176,154
4.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $498,823
13.1%
Professional Fundraising Fees $0
Other Salaries and Wages $1,601,381
42.2%
Assets/Debt
Total Assets $4,694,373
Total Liabilities $2,392,844
Net Assets $2,301,529
Compensation
Key Employees and Officers Compensation Related Other
Walter Pearce (Security Engineer) $308,247 $0 $20,641
Joel Marcey (Director Of Technology) $255,279 $0 $10,321
Lars Bergstrom (Chair) $0 $0 $0
Nell Shamrell-harrington (Vice Chair) $0 $0 $0
Scott Mcmurray (Treasurer) $0 $0 $0
Eric Garcia (Secretary) $0 $0 $0
Ryan Levick (Director) $0 $0 $0
Peixin Hou (Director) $0 $0 $0
Seth Markle (Director) $0 $0 $0
Jakob Degen (Director) $0 $0 $0
Santiago Pastorino (Director) $0 $0 $0
Alexandru Radovici (Director (from 2/2024)) $0 $0 $0
Carol Nichols (Director (from 11/2024)) $0 $0 $0
Andy Wafaa (Director (thru 2/2024)) $0 $0 $0
Mark Rousskov (Director (thru 10/2024)) $0 $0 $0
Rebecca Rumbul (Executive Director) $0 $0 $0
Paul Lenz (Director Of Finance & Funding) $0 $0 $0
Tobias Bieniek (Software Engineer) $0 $0 $0
Jan David Nose (Lead Infrastructure Engineer) $0 $0 $0
Adam Harvey (Software Engineer) $0 $0 $0
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Document Links

990
Filed on Feb. 24, 2026

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$2,521,299
Expenses
$3,074,941
Net Income
-$553,642
Net Assets
$1,805,308
Notable Sources of Revenue Percent of Total Revenue
Contributions $600,257
23.8%
Program Services $1,921,042
76.2%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $490,727
16.0%
Professional Fundraising Fees $0
Other Salaries and Wages $1,315,231
42.8%
Assets/Debt
Total Assets $3,736,867
Total Liabilities $1,931,559
Net Assets $1,805,308
Compensation
Key Employees and Officers Compensation Related Other
Walter Pearce (Security Engineer) $261,741 $0 $16,191
Joel Marcey (Director Of Technology) $243,628 $0 $14,139
Gracie Gregory (Director Of Marketing/communications) $136,099 $0 $14,244
Lars Bergstrom (Chair) $0 $0 $0
Nell Shamrell-harrington (Vice Chair) $0 $0 $0
Andy Wafaa (Treasurer) $0 $0 $0
Mark Rousskov (Secretary) $0 $0 $0
Ryan Levick (Director) $0 $0 $0
Peixin Hou (Director) $0 $0 $0
Eric Garcia (Director) $0 $0 $0
Seth Markle (Director) $0 $0 $0
Scott Mcmurray (Director (from 9/2023)) $0 $0 $0
Jakob Degen (Director (from 9/2023)) $0 $0 $0
Santiago Pastorino (Director (from 9/2023)) $0 $0 $0
Stephen Chin (Director (thru 8/2023)) $0 $0 $0
Josh Stone (Director (thru 9/2023)) $0 $0 $0
Tyler Mandry (Director (thru 9/2023)) $0 $0 $0
Jane Losare-lusby (Director (thru 9/2023)) $0 $0 $0
Rebecca Rumbul (Executive Director) $0 $0 $0
Paul Lenz (Director Of Finance & Funding) $0 $0 $0
Adam Harvey (Software Engineer (from 2/2023)) $0 $0 $0
Abi Broom (Director Of Operations) $0 $0 $0
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Document Links

990
Filed on Nov. 12, 2024

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$2,818,843
Expenses
$1,931,697
Net Income
$887,146
Net Assets
$2,335,950
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,127,676
40.0%
Program Services $1,691,167
60.0%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $351,266
18.2%
Professional Fundraising Fees $0
Other Salaries and Wages $378,918
19.6%
Assets/Debt
Total Assets $2,993,908
Total Liabilities $657,958
Net Assets $2,335,950
Compensation
Key Employees and Officers Compensation Related Other
Joel Marcey (Director Of Technology) $181,324 $0 $2,701
Shane Miller (Chair (thru 12/2022)) $0 $0 $0
Mark Rousskov (Secretary) $0 $0 $0
Andy Wafaa (Treasurer (from 2/2022)) $0 $0 $0
Lars Bergstrom (Director) $0 $0 $0
Nell Shamrell-harrington (Director) $0 $0 $0
Peixin Hou (Director) $0 $0 $0
Jane Losare-lusby (Director) $0 $0 $0
Josh Stone (Director) $0 $0 $0
Tyler Mandry (Director) $0 $0 $0
Eric Garcia (Director) $0 $0 $0
Ryan Levick (Director (from 2/2022)) $0 $0 $0
Stephen Chin (Director (from 9/2022)) $0 $0 $0
Seth Markle (Director (from 11/2022)) $0 $0 $0
Florian Gilcher (Director (thru 2/2022)) $0 $0 $0
Bobby Holley (Director (thru 12/2022)) $0 $0 $0
Rebecca Rumbul (Executive Director) $0 $0 $0
Paul Lenz From 22022 (Head Of Finance And Funding) $0 $0 $0
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Document Links

990
Filed on Nov. 12, 2024

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$2,074,961
Expenses
$626,157
Net Income
$1,448,804
Net Assets
$1,448,804
Notable Sources of Revenue Percent of Total Revenue
Contributions $650,000
31.3%
Program Services $1,424,917
68.7%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $44
0.0%
Notable Expenses Percent of Total Expenses
Executive Compensation $139,635
22.3%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,745,498
Total Liabilities $296,694
Net Assets $1,448,804
Compensation
Key Employees and Officers Compensation Related Other
Ashley Williams (Interim Exec. Dir. (thru 07/2021)) $110,000 $0 $0
Rebecca Rumbul (Executive Director (from 11/2021)) $26,283 $0 $3,352
Shane Miller (Chair) $0 $0 $0
Mark Rousskov (Secretary) $0 $0 $0
Bobby Holley (Director) $0 $0 $0
Joel Marcey (Director) $0 $0 $0
Lars Bergstrom (Director) $0 $0 $0
Nell Shamrell-harrington (Director) $0 $0 $0
Peixin Hou (Director) $0 $0 $0
Jane Losare-lusby (Director) $0 $0 $0
Josh Stone (Director) $0 $0 $0
Tyler Mandry (Director) $0 $0 $0
Florian Gilcher (Director) $0 $0 $0
+ View more people

Document Links

990
Filed on Nov. 12, 2024

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

About This Data

What Is This Data?

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains financial information from tax returns processed by the IRS since the 2012 calendar years, as well as data extracted from digital filings. IRS summary data also includes limited older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits for nonprofit organizations that spent $750,000 or more in federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

Which Organizations Are Here?

Most organizations that have been recognized as tax exempt by the IRS have to file the Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file the Form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard," which does not contain financial details. Churches are not required to file Form 990.

Nonprofit Explorer has organizations that are claiming tax exemption in any of the 27 subsections of the 501(c) section of the tax code. Taxable trusts and private foundations that are required to file a form 990PF are also included.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

Get the Data

For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes Employer Identification Numbers and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

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Nonprofit Explorer

Browse millions of annual returns filed by tax-exempt organizations with ProPublica’s Nonprofit Explorer. See details like executive compensation, revenue, expenses and more. Search for an organization or a person, or search the full text of filings.

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