Trace

Lightcone Infrastructure

www.lightconeinfrastructure.com · organization · LessWrong

AI safety metaOther existential riskAI safety fieldbuildingEA infrastructureGlobal health and development

Received
$29,398,267
from 92 funders
Grants
119
Funders
92
Years active
2017–26

Grants over time

$0$2.5M$5.0M$7.5M$10M2017201820192020202120222023202420252026

Biggest funders

Jaan Tallinn$12,996,30044%23
Coefficient Giving$8,220,00028%4
FTX Future Fund$2,000,0007%1
Vitalik Buterin$1,000,0003%1
Casey and Family Foundation$500,0002%1
EA Infrastructure Fund$250,0001%1
drethelin$150,0001%1
Scott Alexander$100,0000%1

Grants received

Date ↓FunderViaAmountCauseSourcePurpose
Apr 8, 2026Romain DelégliseManifund$120Epistemic infrastructuremanifundLightcone Infrastructure
Apr 7, 2026Nick SaraevManifund$1,000Epistemic infrastructuremanifundLightcone Infrastructure
Jan 17, 2026Jesse RichardsonManifund$20,000Epistemic infrastructuremanifundLightcone Infrastructure
Jan 1, 2026Alexandra BatesManifund$50,000Epistemic infrastructuremanifundLightcone Infrastructure
Dec 26, 2025Marius HobbhahnManifund$25,000Epistemic infrastructuremanifundLightcone Infrastructure
Dec 25, 2025Lauren ManglaManifund$50,000Epistemic infrastructuremanifundLightcone Infrastructure
Dec 13, 2025Unknown Donors~$1,855,000*Epistemic infrastructureorg_reportedDonations to the fundraiser launched in December 2025 that are not itemized individually
Nov 15, 2025Stephen McAleeseManifund$100Epistemic infrastructuremanifundLightcone Infrastructure
Oct 27, 2025Ben EisenpressManifund$250Epistemic infrastructuremanifundLightcone Infrastructure
Sep 2025Jaan TallinnSurvival and Flourishing Fund$1,311,000Epistemic infrastructuresffGeneral support
Jul 21, 202508068931-db8f-46fa-9222-e1a4f8791df4Manifund$10Epistemic infrastructuremanifundLightcone Infrastructure
Jun 18, 2025Thomas LarsenManifund$10,000Epistemic infrastructuremanifundLightcone Infrastructure
Mar 11, 2025Josh SacksManifund$1,000Epistemic infrastructuremanifundLightcone Infrastructure
Jan 30, 2025Vincent WeisserManifund$100Epistemic infrastructuremanifundLightcone Infrastructure
Jan 19, 2025Unknown Donors~$1,912,788†Epistemic infrastructureorg_reportedDonations to the 2024–25 LessWrong + Lighthaven fundraiser that are not itemized individually
Jan 4, 2025Dusan D NesicManifund$1,114Epistemic infrastructuremanifundLightcone Infrastructure
Dec 30, 2024fribManifund$1,040Epistemic infrastructuremanifundLightcone Infrastructure
Dec 29, 2024Evan HubingerManifund$10,000Epistemic infrastructuremanifundLightcone Infrastructure
Dec 18, 2024Saul MunnManifund$1,000Epistemic infrastructuremanifundLightcone Infrastructure
Dec 15, 2024Eric NeymanManifund$5,000Epistemic infrastructuremanifundLightcone Infrastructure
Dec 9, 2024Lucie PhilipponManifund$150Epistemic infrastructuremanifundLightcone Infrastructure
Dec 5, 2024Jay SchreiberManifund$18,100Epistemic infrastructuremanifundLightcone Infrastructure
Dec 3, 2024Jan GörgensManifund$10Epistemic infrastructuremanifundLightcone Infrastructure
Dec 1, 2024Chin Ze ShenManifund$20Epistemic infrastructuremanifundLightcone Infrastructure
Dec 1, 2024Orpheus LummisManifund$70Epistemic infrastructuremanifundLightcone Infrastructure
Dec 1, 2024Tassilo NeubauerManifund$600Epistemic infrastructuremanifundLightcone Infrastructure
Nov 30, 2024Andrew GManifund$108Epistemic infrastructuremanifundLightcone Infrastructure
Nov 30, 2024drethelin$150,000Epistemic infrastructureorg_reportedopening our fundraiser with a $150,000 donation
Oct 30, 2024Jaan TallinnSurvival and Flourishing Fund$513,500Epistemic infrastructuresffGeneral support
Oct 25, 2024Jaan TallinnCenter for Applied Rationality$1,720,000Epistemic infrastructurejaan_onlineGeneral support for Lightcone Infrastructure
Oct 25, 2024Jaan TallinnCenter for Applied Rationality$200,000Epistemic infrastructurejaan_onlineGeneral support for Lightcone Infrastructure
Oct 5, 2024loopsManifund$155Epistemic infrastructuremanifundLightcone Infrastructure
Oct 2024EA Infrastructure FundEA Funds$250,000EA infrastructureea_fundsSupport for LessWrong.com, Lighthaven.space and other infrastructure that improves humanity's epistemics and long-term future
Sep 17, 2024aysjaManifund$200Epistemic infrastructuremanifundLightcone Infrastructure
Sep 13, 2024EA Community ChoiceManifund$24,628Epistemic infrastructuremanifundLightcone Infrastructure
Sep 5, 2024Aaron LehmannManifund$100Epistemic infrastructuremanifundLightcone Infrastructure
Sep 5, 2024Mikhail SaminManifund$50Epistemic infrastructuremanifundLightcone Infrastructure
Sep 5, 2024David KastenManifund$100Epistemic infrastructuremanifundLightcone Infrastructure
Sep 4, 2024Oliver HabrykaManifund$750Epistemic infrastructuremanifundLightcone Infrastructure
Sep 4, 2024Peter BurnsManifund$100Epistemic infrastructuremanifundLightcone Infrastructure
Sep 4, 2024Nate SoaresManifund$200Epistemic infrastructuremanifundLightcone Infrastructure
Sep 4, 2024Ross NordbyManifund$1,000Epistemic infrastructuremanifundLightcone Infrastructure
Sep 4, 2024Rafe KennedyManifund$400Epistemic infrastructuremanifundLightcone Infrastructure
Sep 4, 2024Mateusz BagińskiManifund$60Epistemic infrastructuremanifundLightcone Infrastructure
Sep 4, 2024Luke StebbingManifund$1,000Epistemic infrastructuremanifundLightcone Infrastructure
Sep 4, 2024Ben Weinstein-RaunManifund$300Epistemic infrastructuremanifundLightcone Infrastructure
Sep 4, 2024Ravi ParikhManifund$500Epistemic infrastructuremanifundLightcone Infrastructure
Sep 4, 2024151d526c-af35-4f14-8c78-23f54ff24bbcManifund$250Epistemic infrastructuremanifundLightcone Infrastructure
Sep 4, 2024Cameron HolmesManifund$50Epistemic infrastructuremanifundLightcone Infrastructure
Sep 4, 2024Girl LichManifund$100Epistemic infrastructuremanifundLightcone Infrastructure
Sep 4, 2024Joshua DavidManifund$10Epistemic infrastructuremanifundLightcone Infrastructure
Sep 4, 2024Michael DickensManifund$200Epistemic infrastructuremanifundLightcone Infrastructure
Sep 4, 2024DRAKE MORRISONManifund$100Epistemic infrastructuremanifundLightcone Infrastructure
Sep 4, 2024ShaunaManifund$100Epistemic infrastructuremanifundLightcone Infrastructure
Sep 4, 2024Max HowaldManifund$500Epistemic infrastructuremanifundLightcone Infrastructure
Sep 3, 2024Garrett BakerManifund$145Epistemic infrastructuremanifundLightcone Infrastructure
Sep 1, 2024Elizabeth Van NostrandManifund$700Epistemic infrastructuremanifundLightcone Infrastructure
Aug 30, 2024Michaël Rubens TrazziManifund$10Epistemic infrastructuremanifundLightcone Infrastructure
Aug 29, 2024Isabel JuniewiczManifund$300Epistemic infrastructuremanifundLightcone Infrastructure
Aug 28, 2024aNK555Manifund$60Epistemic infrastructuremanifundLightcone Infrastructure
Aug 27, 2024N.C. YoungManifund$50Epistemic infrastructuremanifundLightcone Infrastructure
Aug 23, 2024Eli LiflandManifund$600Epistemic infrastructuremanifundLightcone Infrastructure
Aug 23, 2024Alex VeshevManifund$50Epistemic infrastructuremanifundLightcone Infrastructure
Aug 22, 2024Johannes C. MayerManifund$200Epistemic infrastructuremanifundLightcone Infrastructure
Aug 22, 2024Case SandbergManifund$50Epistemic infrastructuremanifundLightcone Infrastructure
Aug 22, 2024Neel NandaManifund$50Epistemic infrastructuremanifundLightcone Infrastructure
Aug 21, 2024Pat Scott 🩴Manifund$20Epistemic infrastructuremanifundLightcone Infrastructure
Aug 21, 2024Simon FischerManifund$68Epistemic infrastructuremanifundLightcone Infrastructure
Aug 21, 2024Steven ByrnesManifund$610Epistemic infrastructuremanifundLightcone Infrastructure
Aug 21, 2024julia perssonManifund$300Epistemic infrastructuremanifundLightcone Infrastructure
Aug 21, 2024Aleph CoinManifund$300Epistemic infrastructuremanifundLightcone Infrastructure
Aug 21, 2024Sapphire StarManifund$600Epistemic infrastructuremanifundLightcone Infrastructure
Aug 21, 2024Judd RosenblattManifund$142Epistemic infrastructuremanifundLightcone Infrastructure
Aug 21, 2024Ross Rheingans-YooManifund$100Epistemic infrastructuremanifundLightcone Infrastructure
Aug 21, 2024Zach Stein-PerlmanManifund$250Epistemic infrastructuremanifundLightcone Infrastructure
Aug 21, 2024Adam SchollManifund$500Epistemic infrastructuremanifundLightcone Infrastructure
Aug 21, 2024Alex PalcuieManifund$20Epistemic infrastructuremanifundLightcone Infrastructure
Aug 21, 2024Anton MakiievskyiManifund$200Epistemic infrastructuremanifundLightcone Infrastructure
Aug 21, 2024Isaac DunnManifund$160Epistemic infrastructuremanifundLightcone Infrastructure
Aug 21, 2024Jacob Goldman-WetzlerManifund$100Epistemic infrastructuremanifundLightcone Infrastructure
Aug 21, 2024Daniel HnykManifund$500Epistemic infrastructuremanifundLightcone Infrastructure
Aug 21, 2024Andy MartinManifund$1,100Epistemic infrastructuremanifundLightcone Infrastructure
Aug 21, 2024Martin MilbradtManifund$100Epistemic infrastructuremanifundLightcone Infrastructure
Jul 11, 2024Jaan TallinnSurvival and Flourishing Fund$240,000Epistemic infrastructurejaan_onlineFor general operating support
Jun 11, 2024Daniel FilanManifund$10Epistemic infrastructuremanifundLightcone Infrastructure
May 23, 2024Jaan TallinnSurvival and Flourishing Fund$180,000Epistemic infrastructurejaan_onlineGeneral support
May 10, 2024Nick FitzManifund$25Epistemic infrastructuremanifundLightcone Infrastructure
May 10, 2024Chris LakinManifund$500Epistemic infrastructuremanifundLightcone Infrastructure
May 9, 2024Austin ChenManifund$5,000Epistemic infrastructuremanifundLightcone Infrastructure
2024Jaan TallinnSurvival and Flourishing Fund$1,720,000Epistemic infrastructuresffGeneral support of Lightcone Infrastructure
2024Jaan TallinnSurvival and Flourishing Fund$200,000Epistemic infrastructuresffGeneral support of flexHEG prototyping
Nov 30, 2023Jaan TallinnCenter for Applied Rationality$160,000Epistemic infrastructurejaan_onlineGeneral support for Lightcone Infrastructure
Oct 26, 2023Jaan TallinnSurvival and Flourishing Fund$410,000Research hubssffGeneral Support of Lightcone Infrastructure
Oct 2023Coefficient Giving$2,960,000Other existential riskcoefficient_givingGeneral Support
Jul 11, 2023Jaan TallinnCenter for Applied Rationality$250,000Epistemic infrastructurejaan_onlineGeneral support for Lightcone Infrastructure
Apr 28, 2023Jaan TallinnSurvival and Flourishing Fund$1,733,000Research hubssffGeneral Support of Lightcone Infrastructure
2023Scott Alexander$100,000Epistemic infrastructureorg_reportedScott Alexander who graciously donated $100,000
2023Vitalik Buterin$1,000,000Epistemic infrastructureorg_reportedVitalik Buterin and Jed McCaleb who each contributed $1,000,000 in 2023
2023Patrick LaVictoire$50,000Epistemic infrastructureorg_reportedPatrick LaVictoire who donated $50,000
Dec 8, 2022Jaan TallinnCenter for Applied Rationality$600,000Epistemic infrastructurejaan_onlineGeneral support for Lightcone Infrastructure
Dec 2022Jaan TallinnSurvival and Flourishing Fund$1,000,000Research hubssffGeneral Support of Lightcone Infrastructure
Sep 2022Coefficient Giving$4,500,000Other existential riskcoefficient_givingGeneral Support
Aug 18, 2022Jaan TallinnCenter for Applied Rationality$400,000Epistemic infrastructurejaan_onlineGeneral support for Lightcone Infrastructure
Jul 8, 2022Jaan TallinnCenter for Applied Rationality$13,800Epistemic infrastructurejaan_onlineGeneral support for Lightcone Infrastructure
2022FTX Future Fund$2,000,000Epistemic infrastructureftx_future_fundWe recommended a grant to support Lightcone’s ongoing projects including running the LessWrong forum, hosting conferences and events, and maintaining an office space for Effective Altruist organizations. — Artificial Intelligence, Effective Altruism
Nov 20, 2021Casey and Family FoundationSurvival and Flourishing Fund$500,000Research hubssffGeneral Support of Lightcone Infrastructure
Nov 20, 2021Jaan TallinnSurvival and Flourishing Fund$380,000Research hubssffGeneral Support of Lightcone Infrastructure
Jul 2021Jaan TallinnSurvival and Flourishing Fund$1,055,000Research hubssffGeneral Support of LessWrong
May 2021Coefficient Giving$460,000Other existential riskcoefficient_givingGeneral Support
Jun 2020Jaan TallinnSurvival and Flourishing Fund$290,000Epistemic infrastructuresffGeneral Support of LessWrong
Jun 2020Jed McCalebSurvival and Flourishing Fund$30,000Research hubssffGeneral Support of LessWrong
Jun 2020Jaan TallinnSurvival and Flourishing Fund$110,000Research hubssffGeneral Support of LessWrong
Apr 2020Coefficient Giving$300,000Other existential riskcoefficient_givingGeneral Support
Sep 30, 2019Jaan TallinnSurvival and Flourishing Fund$260,000Epistemic infrastructurevipul_donations
Sep 4, 2018Jaan TallinnBerkeley Existential Risk Initiative$150,000Epistemic infrastructurejaan_onlineGeneral support for activities to develop and improve the website LessWrong 2.0
Feb 8, 2018Jaan TallinnBerkeley Existential Risk Initiative$100,000Epistemic infrastructurejaan_onlineGeneral support for activities to develop and improve the website LessWrong 2.0
Sep 29, 2017Effective Altruism Grants$6,900EA infrastructurevipul_donationsWork on in-person and/or online community infrastructure for the rationality and EA communities. This will primarily take the form of helping to develop the new version of the rationality forum LessWrong, with others projects, like Europeans workshops encouraging long-term collaboration between EAs, under consideration. See http://effective-altruism.com/ea/1fc/effective_altruism_grants_project_update/ for more context about the grant program.
Sep 29, 2017Effective Altruism Grants$78,814Global health and developmentvipul_donationsDevelopment of the new version of the rationality forum LessWrong. He and a partner will improve its moderation system, codebase and design, as well as incentivize top contributors to post on the new platform. See http://effective-altruism.com/ea/1fc/effective_altruism_grants_project_update/ for more context about the grant program.
Sep 14, 2017Eric Rogstad$10,000Epistemic infrastructurevipul_donations

* Lightcone Infrastructure said it needed about $2m for the year in the fundraiser it launched on 13 December 2025; no closing total was posted, so the round is estimated at $2m and the $145,000 of donations recorded individually in this database is subtracted.

† Lightcone Infrastructure reported raising over $2.1m when its 2024–25 LessWrong + Lighthaven fundraiser closed on 19 January 2025; the $187,212 of fundraiser donations recorded individually in this database is subtracted from that total.

As fiscal sponsor 5 · $1,367,000 · $273,400 average

Date ↓FunderRecipientViaAmountCauseSourcePurpose
Sep 2025Jaan TallinnDavid LorellSurvival and Flourishing Fund$230,000Technical AI safety researchsffGeneral support of research led by David Lorrell
Sep 2025Jaan TallinnMissing MeasuresSurvival and Flourishing Fund$338,000Technical AI safety researchsffGeneral support of Missing Measures
Sep 2025Jaan TallinnJohn WentworthSurvival and Flourishing Fund$258,000FoundationssffGeneral support of research led by John Wentworth
Sep 2025Jaan TallinnAI Lab WatchSurvival and Flourishing Fund$371,000OthersffGeneral support of AI Lab Watch
Oct 30, 2024Jaan TallinnMacrostrategy Research InitiativeSurvival and Flourishing Fund$170,000EvalssffGeneral support of Macrostrategy Research Initiative