Redwood Research Group Inc - Nonprofit Explorer - ProPublica Nonprofit Explorer California Redwood Research Group Inc Redwood Research Berkeley, CA Tax exemption issued: Sept. 2021 EIN: 87-1702255 Organization summary Type of Nonprofit Designated as a 501(c)(3) Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals. Category : Science and Technology Research Institutes, Services / Research Institutes and/or Public Policy Analysis (NTEE) Donations to this organization are tax deductible. 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. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS. See an issue with the data? Contact Us Fiscal Year Ending Dec. 2024 Extracted Financial Data Extracted Financial Data from Form 990 Revenue $22,060 Expenses $2,922,498 Net Income -$2,900,438 Net Assets $6,497,522 Notable Sources of Revenue Percent of Total Revenue Contributions $9,659 43.8% Program Services $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 $12,401 56.2% Notable Expenses Percent of Total Expenses Executive Compensation $606,075 20.7% Professional Fundraising Fees $0 Other Salaries and Wages $136,144 4.7% Assets/Debt Total Assets $6,560,743 Total Liabilities $63,221 Net Assets $6,497,522 Compensation Key Employees and Officers Compensation Related Other Ryan Greenblatt (Chief Scientist) $314,922 $0 $7,688 Michael Shlegeris (Ceo, Director) $272,164 $0 $11,301 Fabien Roger (Technical Staff (thru 7/24)) $141,452 $0 $4,077 Nathaniel Thomas (Director, Board Chair) $0 $0 $0 Ajeya Cotra (Director (thru 8/24)) $0 $0 $0 Ammon Bartram (Director) $0 $0 $0 James Bregan (Secretary, Treasurer) $0 $0 $0 + View more people Document Links 990 Filed on Nov. 15, 2025 Primary tax return for a nonprofit’s activities, finances, and governance View Filing Schedules ▼ Form 990 Form 990, Schedule A Form 990, Schedule B Form 990, Schedule D Form 990, Schedule I Form 990, Schedule J Form 990, Schedule O XML Fiscal Year Ending Dec. 2023 Extracted Financial Data Extracted Financial Data from Form 990 Revenue $10,036,347 Expenses $12,590,834 Net Income -$2,554,487 Net Assets $8,298,895 Notable Sources of Revenue Percent of Total Revenue Contributions $9,398,000 93.6% Program Services $343,734 3.4% Investment Income $0 Bond Proceeds $0 Royalties $0 Rental Property Income $0 Net Fundraising $0 Sales of Assets $1,250 0.0% Net Inventory Sales $0 Other Revenue $293,363 2.9% Notable Expenses Percent of Total Expenses Executive Compensation $678,604 5.4% Professional Fundraising Fees $0 Other Salaries and Wages $2,642,259 21.0% Assets/Debt Total Assets $11,984,181 Total Liabilities $3,685,286 Net Assets $8,298,895 Compensation Key Employees and Officers Compensation Related Other Ryan Greenblatt (Member Of Technical Staff) $314,931 $0 $6,908 Michael Shlegeris (Ceo, Director) $272,175 $0 $10,247 Evgenia Nitishinskaya (Member Of Tech. Staff (thru 7/23)) $197,187 $0 $9,389 Nathaniel Thomas (Director, Board Chair) $183,333 $91,091 $8,317 Daniel Ziegler (Member Of Tech. Staff (thru 6/23)) $178,673 $0 $7,545 Kshitij Sachan (Member Of Tech. Staff (thru 11/23)) $173,210 $0 $9,029 Nicholas Goldowsky-dill (Member Of Tech. Staff (thru 6/23)) $171,449 $0 $7,239 James Bregan (Cfo, Secretary) $145,833 $103,953 $30,943 William Zito (Coo) $78,138 $50,341 $7,891 Ajeya Cotra (Director) $0 $0 $0 Paul Christiano (Director (thru 6/23)) $0 $0 $0 Holden Karnofsky (Director (thru 11/23)) $0 $0 $0 + View more people Document Links 990 Filed on Nov. 16, 2024 Primary tax return for a nonprofit’s activities, finances, and governance View Filing Schedules ▼ Form 990 Form 990, Schedule A Form 990, Schedule B Form 990, Schedule D Form 990, Schedule F Form 990, Schedule I Form 990, Schedule J Form 990, Schedule O Form 990, Schedule R XML Fiscal Year Ending Dec. 2022 Extracted Financial Data Extracted Financial Data from Form 990 Revenue $12,049,894 Expenses $12,759,191 Net Income -$709,297 Net Assets $10,853,382 Notable Sources of Revenue Percent of Total Revenue Contributions $11,974,000 99.4% Program Services $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 $75,894 0.6% Notable Expenses Percent of Total Expenses Executive Compensation $1,105,325 8.7% Professional Fundraising Fees $0 Other Salaries and Wages $3,955,442 31.0% Assets/Debt Total Assets $14,026,098 Total Liabilities $3,172,716 Net Assets $10,853,382 Compensation Key Employees and Officers Compensation Related Other Daniel Ziegler (Member Of Technical Staff) $384,872 $0 $14,001 Tao Lin (Member Of Technical Staff) $295,571 $0 $2,400 Ryan Greenblatt (Member Of Technical Staff) $292,284 $0 $1,828 William Zito (Coo) $274,370 $0 $7,399 Nathaniel Thomas (Chairperson/president) $274,361 $0 $7,989 Michael Shlegeris (Cto) $273,567 $0 $9,112 Timothy Bauman (Member Of Technical Staff) $267,761 $0 $11,056 James Bregan (Head Of Constellation Operations) $234,234 $0 $24,295 Evgenia Nitishinskaya (Member Of Technical Staff) $212,252 $0 $4,571 Holden Karnofsky (Treasurer/cfo) $0 $0 $0 Paul Christiano (Secretary) $0 $0 $0 + View more people Document Links 990 Filed on Nov. 15, 2023 Primary tax return for a nonprofit’s activities, finances, and governance View Filing Schedules ▼ Form 990 Form 990, Schedule A Form 990, Schedule B Form 990, Schedule D Form 990, Schedule F Form 990, Schedule J Form 990, Schedule O PDF XML Fiscal Year Ending Dec. 2021 Extracted Financial Data Extracted Financial Data from Form 990 Revenue $13,904,248 Expenses $2,341,569 Net Income $11,562,679 Net Assets $11,562,679 Notable Sources of Revenue Percent of Total Revenue Contributions $13,900,000 100.0% Program Services $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 $4,248 0.0% Notable Expenses Percent of Total Expenses Executive Compensation $172,358 7.4% Professional Fundraising Fees $0 Other Salaries and Wages $500,292 21.4% Assets/Debt Total Assets $14,523,608 Total Liabilities $2,960,929 Net Assets $11,562,679 Compensation Key Employees and Officers Compensation Related Other Nathaniel Thomas (Ceo/president) $56,250 $0 $1,300 Michael Shlegeris (Cto) $56,250 $0 $1,165 William Zito (Coo) $56,250 $0 $1,143 Holden Karnofsky (Treasurer) $0 $0 $0 Paul Christiano (Secretary) $0 $0 $0 + View more people Document Links 990 Filed on Nov. 10, 2022 Primary tax return for a nonprofit’s activities, finances, and governance View Filing Schedules ▼ Form 990 Form 990, Schedule A Form 990, Schedule B Form 990, Schedule D Form 990, Schedule O PDF 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 information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include 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 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? Every organization that has been recognized as tax exempt by the IRS has to file 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 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." Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data. 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 EINs 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. Bulk PDF downloads since 2017 are available from the IRS . 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. API The data powering this website is available programmatically, via an API. Read the API documentation » See an issue with the data? Contact Us About Nonprofit Explorer 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. By Andrea Suozzo , Alec Glassford , Ash Ngu and Brandon Roberts . Design by Jeff Frankl. Additional development by Ken Schwencke, Mike Tigas, and Sisi Wei. E-file viewer adapted from IRS e-File Viewer by Ben Getson. Code for scraping audit documents adapated from Govwiki . Updated August 20, 2026