Sigma Squared Society
@sigma2society
Uniting and empowering the world’s most ambitious founders under 26.
ID: 1272742123
http://www.sigma-squared.org 16-03-2013 16:26:17
1,1K Tweet
1,1K Followers
773 Following
Sam Altman
@sama
AI is cool i guess
Saul Klein
@cape
Husband. Dad. Co-Founder @phxcrt @NewtonProgramVC @zincvc @weareplatoon @seedcamp @lovefilm Operator @ogilvy @microsoft @skype Investor @indexventures
Michael Seibel
@mwseibel
Partner Emeritus at YC
Patrick Collison
@patrickc
@Stripe CEO, @ArcInstitute cofounder.
Tim Ferriss
@tferriss
Author of 5 #1 NYT/WSJ bestsellers, early-stage investor (tim.blog/portfolio), Tim Ferriss Show podcast (1B+ downloads), founder of saiseifoundation.org
Brian Chesky
@bchesky
Airbnb
Ryan Hoover
@rrhoover
Founder of @ProductHunt. Investor at @WeekendFund. Say hi! 👋🏼
david friedberg
@friedberg
ohalo.com
Shane Parrish
@shaneaparrish
Mastering the best of what other people have already figured out. Over 800k+ read my weekly newsletter full of timeless insights. Pod: fs.blog/podcast/
Daniel Gross
@danielgross
Stanford Social Innovation Review
@ssireview
Informing and inspiring leaders of social change. Follow us on other social media: bit.ly/SSIR_Linkedin | bit.ly/SSIR_Instagram | bit.ly/SSIR_Bluesky
GIIN
@thegiin
The Global Impact Investing Network is a nonprofit organization dedicated to increasing the scale & effectiveness of impact investing around the world. #impinv
FS
@farnamstreet
Order the NYT Bestseller Clear Thinking today: fs.blog/clear 🎙 The Knowledge Project Podcast 📩 Brain Food (fs.blog/newsletter)
Y Combinator
@ycombinator
We help founders make something people want. Subscribe to our newsletter: yc.link/newsletter
Melinda French Gates
@melindagates
Philanthropist, businesswoman, author, & advocate for women & girls. Founder of @pivotalventures. Co-founder of the @gatesfoundation. Proud Mom & Nonna ❤️
Paul Graham
@paulg
James Clear
@jamesclear
Author of the #1 NYT bestseller Atomic Habits (atomichabits.com). I write about building good habits. Over 3 million people read my 3-2-1 newsletter.
Sebastian Siemiatkowski
@klarnaseb
Co-founder and CEO of @Klarna. Smoooth shopping! Trying my best to be the nightmare of the bank establishment worldwide! Do all I can so customers will love us
NEXUS
@thenexussummit
NEXUS - Advancing Innovative Philanthropy & Social Entrepreneurship #WeAreNEXUS
Sallie Krawcheck
@salliekrawcheck
CEO and co-founder @Ellevest. Past head of Merrill Lynch & Smith Barney, CFO of Citi, research analyst. Rabid UNC basketball fan. Author of Own It. Mom.
Bloomberg Philanthropies
@bloombergdotorg
Bloomberg Philanthropies works primarily to advance five areas globally: the Arts, Education, the Environment, Government Innovation and Public Health.
Jamie Heller
@jamieheller
Editor in Chief, Business Insider, formerly @WSJ
Yehong Zhu
@yehongzhu
Founder @ZetteAI x @ZetteMedia, @ForbesUnder30 Formerly product @X, writer @Forbes, phil @Harvard
Nikita Bier
@nikitabier
I make apps grow really fast. ex-founder @gasappteam (acq by discord), ex-founder @thetbhapp (acq by facebook)
Zubair Junjunia
@zjunjunia
Founder @znotesrevision . @UNDP & @SamsungMobile Generation17 Young Leader . @DianaAward Legacy 2021 . @UCL Maths '20
Jordan
@jordsnel
trying not to be hasty nomads.vc
Leon Ford
@leonfordspeaks
Survivor of Police Brutality | Activist | Author| Social Entrepreneur | Changemaker. Founder of @HearFoundation
Product Hunt 😸
@producthunt
The place to find your new favorite product 🚀 Get new products in your inbox: meow.ph/new
Monica Lewinsky (she/her)
@monicalewinsky
podcaster Reclaiming with Monica Lewinsky • INSTA monica_lewinsky @altendprod • anti-bullying activist •@tedtalks giver •@vanityfair contributor•rap song muse
Vlad Matsiiako
@matsiiako
securing developers' secrets @Infisical, formerly @Figma @Cornell @ycombinator
Sof Giusiano
@sofgiusiano
Elfish old soul who writes (mostly Spanish) and takes pics constantly. Traveller child. Boostribe cofounder. NEAtech Store partner.
Olio • Your local sharing app
@olio_ex
For people ~ Let someone love what you don't: olioapp.com/en For businesses ~ The hassle-free way to share surplus food: olioapp.com/business/
Brilliant Minds
@symposiumsthlm
Brilliant Minds Foundation is a global platform for creative individuals to come together on world changing ideas.
Figma
@figma
A tribute to our FigPals
Harry Stebbings
@harrystebbings
🎤 @twentyminutevc, 🏦 @20vcfund, @projecteurope_😇 @perplexity_ai @linear @11x_official @tripledotgames @lovable_dev @nexhealthhq @mercor_ai @getcaptionsapp
Ellevest
@ellevest
The experts in women’s wealth — on a mission to get more money in the hands of women since 2014.
Jacque.vbs 🏝️
@thefareastmvmnt
🇳🇿 in sf | product and data | @sigma2society | @zfellows | ex @8vc @microsoft @PalantirTech @cmcnews
The Residency
@_theresidency
home for the ambitious 🚀
Max
@maxthake
cofounder @peaq | regen
peaq
@peaq
Powering the Machine Economy
Sifted
@siftedeu
In-depth reporting on startup Europe, for startup Europe. 🇪🇺 Subscribe to Sifted Pro for vital market intelligence: info.sifted.eu/subscribe-pro
Severance Official
@severance_tv
The Apple Corporation will not be contributing to this Twitter vocally.
Has Stranger Things Season 5 premiered yet?
@sthingsseries
waiting for Stranger Things Season 5
Open Vision Engineering
@openvisioneng
Next Generation of AI Devices
akshay
@akshaynarisetti
Building @OpenVisionEng, Prev 2X YC Engineer, @GeorgiaTech CS, @joinodf Fellow
Arcium ☂️
@arciumhq
Welcome to the encrypted supercomputer.
Fabian Kamberi
@fabiankamberi
Co-Founder, SLAY (5x #1 on the App Store)
Alexander Valtingojer
@alexpanion
CEO & Co-Founder at Coinpanion Doing to digital assets what ETFs did to stocks
The Riveter
@theriveterco
We teach women the skills and networks today they can use to pivot their work or business tomorrow. Join over 400,000 women & subscribe to our newsletter 👇
Bridgerton
@bridgerton
Welcome back to the Ton. Season 3 of #Bridgerton is now streaming only on @netflix
Norrsken
@norrsken_org
We tell stories of startups making the world better. Because if they win, we all win.
Startup Valencia
@startup_vlc
Empowering global tech founders 📍 Base 2, La Marina de Valencia 👉 Join us at @VDS_event!
VDS
@vds_event
The Global Tech Event for Leading Startups, Corporates and Investors Oct 22-23 📍Valencia, Spain 🌌 Join us at #VDS2025!
Vittoria Brolis
@vittoriabrolis
Infisical
@infisical
The #1 open-source secret management platform: sync secrets/configs across your team/infrastructure and prevent secret leaks.
Cube Ventures
@cube_ventures
Somos una firma VC que acelera startups de América Latina en etapa temprana, en tres frentes: inversión, transferencia de conocimiento y construcción de comunid
contentradar.ai
@contentradar_ai
Your AI Social Media Assistant for B2B (Li & X). Fun, easy, and collaborative! Backed by @HustleFundVC +👼👼👼from @canva, @pitch, @spotify, @beondeck, @atomico
GetCrux (YC W24)
@getcruxai
AI agents for Performance Marketers. Agent #1 - Snapshot is live!!
Himank Jain
@himank_jain1
Co-founder @getcruxai (YC W24) - AI Agents for marketing • 49th Edition @iitb_moodi, @ycombinator, @iitbombay alum
Notion
@notionhq
Write. Plan. Collaborate. With a little help from AI.
The Earthshot Prize
@earthshotprize
Explore the power of climate creativity.
Schmidt Futures
@schmidtfutures
Supporting projects at the intersection of talent and technology.
AI Breakfast
@aibreakfast
The latest rumors and developments in the world of artificial intelligence. DM to include your AI project in the newsletter.