2026-05-02T19:00:47-07:00 2025-12-31 990 2025-01-01 331519495 SENTINEL RESEARCH SENT 6464106411 902 W 30TH ST Austin TX 78705 Ratan Rai Sur Officer 6464106411 2026-04-30 2025 2025-03-06 01:10:19Z Ratan Rai Sur 902 W 30TH ST Austin TX 78705 764034 0 X https://sentinel-team.org/ X 2024 TX We help the public by foreseeing and reacting to globally impactful and existential catastrophes. We forecast near-term risks, detect black swans earlier, and deploy our emergency response team to take mitigating action. 4 2 1 0 0 0 215150 743960 0 19372 8 702 0 0 215158 764034 0 0 0 0 0 50246 0 0 0 11461 234245 11461 284491 203697 479543 206072 699824 2375 16584 203697 683240 We help the public by foreseeing and reacting to globally impactful and existential catastrophes. We forecast near-term risks, detect black swans earlier, and deploy our emergency response team to take mitigating action. 0 0 84580 0 19372 Increased number of newsletter subscribers on global risks from about 1k to about 5k 107122 0 0 Published at least 50 weekly reports detailing the most urgent global risks, as well as 7 additional briefs on tooling and in-depth coverage. Maintained readiness of a team of 5 forecasters to make sense of risks and produce these briefs. 56155 0 0 Built open source software to parse millions of news items to identify global risk signals. 0 0 0 247857 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 12 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 X 4 2 0 0 0 0 0 0 0 1 1 0 0 1 1 1 1 1 1 1 1 0 TX X Impact Operations Limited 4388009118 71-75 Shelton Street London UK WC2H 9JQ Nuno Sempere Director 40 0 X 0 0 86647 Ratan Rai Sur Officer 40 0 X X X 64167 0 0 Josh Morrison Director 0 0 X 0 0 0 Vishal Maini Director 0 0 X 0 0 0 64167 0 86647 0 0 0 0 0 0 0 0 0 0 743960 0 743960 19372 19372 0 0 19372 702 702 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 764034 20074 0 0 X 46667 42000 4667 3579 3221 358 15635 15635 192290 179125 13165 1246 1121 125 11223 10101 1122 4267 3840 427 Bank Service Charges 198 0 198 0 Miscellaneous 9386 8449 937 0 284491 247857 36634 0 206072 699824 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 206072 699824 2375 16584 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2375 16584 X 203697 683240 0 0 203697 683240 206072 699824 479543 0 0 0 0 0 X 0 0 0 X 215150 731132 946282 0 0 0 0 0 0 0 215150 731132 946282 946282 8 702 710 0 0 0 32200 32200 979192 X Schedule A, Part II, Line 10 program service revenue from forecasting and research services RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED Form 990, Part VI, Section B, Line 11b The Form 990 was circulated to all directors via electronic communication (Slack) for review before filing Form 990, Part VI, Section B, Line 12c Yes. At the annual board meeting, all members confirmed their adherence to the conflict of interest policy, and proper recusal procedures were followed when setting executive compensation. Form 990, Part VI, Section B, Line 15 The compensation of the Executive Director and Officer was determined through a formal review and approval process conducted by independent board members. The process included consideration of market comparability data, with a board member noting that the proposed rate was fair within the market and aligned with organizational performance goals. For the Executive Director (Nuño Sempere), the board followed the organization's conflict of interest policy by requiring the Executive Director to recuse himself from all deliberations and voting on his own compensation. The remaining board members deliberated independently and voted to approve the compensation rate. For the Officer (Ratan Rai Sur), the board similarly reviewed and confirmed the existing compensation level. The Officer offered to recuse himself from the discussion consistent with the same process. Deliberations and decisions were documented in board meeting minutes. Form 990, Part VI, Section C, Line 19 The organization makes its governing documents, conflict of interest policy, and financial statements available to the public upon written request. Form 990, Part IX, Line 11g Line 11g includes payments to independent contractors for services including foresight team coordination (Nuño Sempere, Executive Director, compensated as a contractor due to non-US residency), emergency response services (Ratan Rai Sur, Officer), video production and editing, graphic design, branding and website design, podcast editing, social media consulting, and AI narration services. The organization's Executive Director, Nuño Sempere, is compensated as an independent contractor rather than an employee due to his residence and operation outside the United States. Total compensation paid to Nuño Sempere during 2025 was $86,647, reported as other compensation in Part VII, column F. His compensation was reviewed and approved by independent board members. The organization's Officer, Ratan Rai Sur, was compensated as an independent contractor from January through May 2025 ($17,500) while the organization's payroll infrastructure was being established. Beginning June 2025, Ratan Rai Sur transitioned to employee status and received W-2 compensation for the remainder of the year ($46,667), reported in Part IX, Line 5.