2026-05-26T17:30:41-07:00 2025-12-31 Crosby & Kaneda CPAs LLP 548 Market St PMB 97503 San Francisco CA 94104 990 2025-01-01 814526660 The Breakthrough Institute BREA 8325940184 2054 University Ave Ste 500 Berkeley CA 94704 Thomas Riley Sec/Treasury 2026-05-26 true Felix Gorrindo P01658413 5108352727 2025 2025-03-06 01:10:19Z Ronald Nordhaus 2054 University Ave Ste 500 Berkeley CA 94704 5069912 false X www.thebreakthrough.org X 2016 CA The Breakthrough Institute is a research center that identifies and promotes technological solutions to environmental and human development challenges. 9 9 27 9 0 7181014 4610976 141341 244090 200020 188047 14965 26799 7537340 5069912 20000 0 0 3544668 3713092 0 225960 1971765 2070562 5536433 5783654 2000907 -713742 6490079 5985021 1377385 1586069 5112694 4398952 The Breakthrough Institute is a research center that identifies and promotes technological solutions to environmental and human development challenges. false false 3369938 75000 Research Programs: Breakthrough's Research Programs consist of our Climate and Energyprogram, which focuses on policies and technologies to reduce greenhouse gas emissionsand increase social resilience to a changing climate; our Nuclear Energy Innovation program, which oversees all engagement with the Nuclear Regulatory Commission and publishes cutting-edge analysis on nuclear technology; our Food and Agriculture program, which advances an innovation-and-productivity framework for enabling abundant andlow-impact food production; our Energy and Development program, which focuses onenergy and infrastructural equity and resilience in emerging economies; and our Environmental Regulatory Reform program, which develops and promotes credible and politically durable policy reforms that support the timely, lawful, and equitable deployment of critical infrastructure. 1055846 162920 Events: Network building is one of the principal ways that Breakthrough makes change in the world, and one way we execute on this is through our events. For over a decade, Breakthrough hosted two popular annual events the Breakthrough Dialogue in California and Ecomodernism in Virginia which convened and advanced ecomodernism, pro-nuclear, and other pragmatic environmental ideas and policy agendas. For the last three years, Breakthrough has been one of the leading organizers of the annual Abundance conference in Washington, DC. We also host numerous workshops, focused policy briefings, and other high-level meetings. 393284 6170 Communications: Our communications program consists of regular publication of research, policy analysis, and argumentative essays on our website, and multiple weekly publications on our flagship Sub-stack, The Ecomodernist. We promote our research, writing, and staff on social media, and augment our institutional publications through speaking engagements at conferences and public events; as well as through essays and analysis for external outlets, including academic, peer-reviewed journals and high-leverage publications such as the Washington Post and the Wall Street Journal. 4819068 true true false true false false false false false false true false false true true true true false false false false false false false false false false false false true false false false false false false false false false false false false false false false false false true 28 0 true 27 true false false false false false false false 0 false false false false false false false X 9 9 false false false false false false false true true false false true true true true true false true true false AK AL CA CO DC FL GA HI KS KY MD MI MS ND NH NM NV OH OK OR PA RI SC TN UT WA X Ann Wang 8325940184 2054 University Ave Ste 500 Berkeley CA 94704 Ronald Nordhaus Executive Dir. 40.00 0.00 X 320000 0 50737 David Hong Washington Dir. 40.00 0.00 213675 0 24295 Alex Trembath Deputy Dir. 40.00 0.00 211150 0 18519 Adam Stein Dir. Nuclear Energy Innovation 40.00 0.00 169950 0 43760 Seaver Wang Dir. of Climate & Energy 40.00 0.00 190550 0 15125 Daniel Blaustein-Rejto Dir. Food & Agriculture 40.00 0.00 171466 0 21236 Emily Bass Dir. Fed Policy 40.00 0.00 157646 0 12177 Ephstathia Bonadies Dir. Events & Special Projects 40.00 0.00 154525 0 13654 Ann Wang Dir. of Ops 40.00 0.00 X 124424 0 34043 Alexander Smith Editorial Dir. 40.00 0.00 133250 0 13690 William Tillson Sr. Nuc Ener Analy 40.00 0.00 104481 0 21907 Peter Seel Radl Health Analys 40.00 0.00 103090 0 14449 Emma Kovak Sr. Food/Ag Analys 40.00 0.00 105825 0 4458 Tisha Schuller Board Chair 2.00 0.00 X X 0 0 0 Thomas Riley Sec./Treasury 2.00 0.00 X X 0 0 0 Matthew Winkler Board Member 1.00 0.00 X 0 0 0 Rachel Pritzker Board Member 1.00 0.00 X 0 0 0 Ross Koningstein Board Member 1.00 0.00 X 0 0 0 Ray Rothrock Board Member 1.00 0.00 X 0 0 0 Jennifer Hernandez Board Member 1.00 0.00 X 0 0 0 Chris Foreman Board Member 1.00 0.00 X 0 0 0 Bill Budinger Board Member 1.00 0.00 X 0 0 0 2160032 288050 13 false true false 0 4610976 4610976 Program service fees 900099 244090 244090 244090 188047 188047 0 0 26799 26799 26799 26799 0 0 0 0 0 5069912 244090 214846 0 0 0 0 1450465 1240146 157698 52621 0 1765878 1500669 179199 86010 56878 44840 9652 2386 199277 165705 26958 6614 240594 207642 24495 8457 0 124522 85737 38785 85734 85734 0 0 0 339252 186126 117126 36000 9601 9601 57127 5838 42845 8444 84723 18539 66184 0 356891 44725 310061 2105 0 0 87155 36719 48278 2158 0 0 53993 53993 15023 15023 Forums & program events 806507 784918 21589 Equipment 34041 180 33861 Professional Dev/Recruitment 15993 12406 3587 Allocation of shared costs 0 475277 -496442 21165 0 5783654 4819068 738626 225960 924100 1117512 0 1558855 519904 91 0 0 0 0 0 128692 159017 367475 263100 98029 104375 2951893 3089940 0 0 0 828419 994273 6490079 5985021 396711 384812 54010 926664 1201257 1377385 1586069 X 2660292 3406305 2452402 992647 5112694 4398952 6490079 5985021 -713742 X false true X true false X 4482128 6545552 4063704 7181014 4610976 26883374 0 0 4482128 6545552 4063704 7181014 4610976 26883374 3178502 23704872 7249 49018 159143 186539 205915 607864 0 14965 14965 27506203 790076 0.86180 0.81450 X RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED RESTRICTED false false false true false false false false true 12447 false false 12447 false false Part II-B, Line 1i - Other Activities Description Various Breakthrough Institute staff engaged a limited amount of lobbying activities in 2025 in relation to priorities of the mission of the organization. Part IV - Additional Information 367475 263100 104375 104375 Right of use - operating lease 994273 994273 Operating lease liability 1201257 1201257 X 5069912 5069912 5069912 5783654 5783654 5783654 Part X : FIN48 Footnote The Internal Revenue Service and the California Franchise Tax Board have determined that the Organization is exempt from federal and state income taxes under IRC 501(c)(3) and California RTC 23701(d). The Organization has evaluated its current tax positions as of December 31, 2025 and is not aware of any significant uncertain tax positions for which a reserve would be necessary. The Organizations tax returns are generally subject to examination by federal and state taxing authorities for three and four years, respectively, after they are filed. X X X X X X false false false false false false false false false Adam Stein Dir. Nuclear Energy Innovation 169950 5099 38661 213710 Alex Trembath Deputy Dir. 211150 6335 12184 229669 Ann Wang Dir. of Ops 124424 3733 30310 158467 Daniel Blaustein-Rejto Dir. Food & Agriculture 171466 5144 16092 192702 David Hong Washington Dir. 213675 6410 17885 237970 Emily Bass Dir. Fed Policy 157646 4729 7448 169823 Ephstathia Bonadies Dir. Events & Special Projects 144525 10000 4636 9018 168179 Ronald Nordhaus Executive Dir. 280000 40000 9600 41137 370737 Seaver Wang Dir. of Climate & Energy 190550 5717 9408 205675 Form 990, Part VI, Section B, Line 11b The draft 990 is presented to the finance committee for review and approval prior to filing. Form 990, Part VI, Section B, Line 12c All board members are asked to complete a conflict of interest form annually. The results of the form are reviewed by the executive team, who will bring concerns about conflicts of interest to the board member in question and to the entire board as appropriate. So far, no conflicts of interest have been flagged in these annual disclosures. Form 990, Part VI, Section B, Line 15a The treasurer and chair of the board consider the salaries of executive directors at comparable non-profits, and in conjunction with current and forecasted budgets forthe organization, approve the executive director's salary. Form 990, Part VI, Section B, Line 15b The Board of Directors reviews national salary comparability information within the Not-for-Profit sector each year. Form 990, Part VI, Section C, Line 19 The Organization makes its governing documents, conflict of interest policy, and financial statements available upon request.