Y Combinator @ycombinator
We help founders make something people want. Subscribe to our newsletter: https://t.co/sjqjxxBeLc ycombinator.com San Francisco, CA Joined February 2010-
Tweets21K
-
Followers1.5M
-
Following346
-
Likes17K
BREAKING NEWS: We just launched the newest addition to the @eightsleep ecosystem 🚀 Pod Pillow Cover Pillows haven’t changed in decades. Today, we reinvented them by adding our proprietary technology. ✅ First pillow cover with active, water-powered cooling ✅ Slips over any…
Here's a TLDR of some of the things we shipped this week @DoorDash.
The @mosaic_so founders are the most detailed orientated engineers I've worked with. Mosaic was voted the best product in our YC group during the Winter '25 batch and they've continued improving the product since. I think this will soon become the default way to edit video.
The @mosaic_so founders are the most detailed orientated engineers I've worked with. Mosaic was voted the best product in our YC group during the Winter '25 batch and they've continued improving the product since. I think this will soon become the default way to edit video.
Superagent (@superagent_ai) is building open-source defense for AI agents. It protects agents from prompt injections, malicious tool calls, and customer data leaks — in production, in CI/CD, and wherever they run. Congrats on the launch, @alanzabihi & @pelaseyed!…
Unsloth now has a Docker image! 🐳 Train LLMs locally with no setup: just run the image and go. Includes every pre-made Unsloth notebook. Solves dependency or environment issues. Guide: docs.unsloth.ai/new/how-to-tra…
We are open-sourcing the GA Guard models — the first family of long-context safety classifiers that have been protecting enterprise AI deployments for the past year.
Taro (@join_taro) is launching the first recruiting network where engineers get paid to get hired. 1000s of engineers find top jobs through Taro. Now, when they get hired, they receive an additional hiring bonus. Congrats on the launch, @rpandey1234 & @AlexChiou!…
Congrats to @arlanrakh and @nozomioai on their $6.2M seed! Nia is a context augmentation layer for AI coding agents, helping developers give the right context to agents through indexing millions of documents like codebases, docs, and more. businessinsider.com/nozomio-high-s…
Mosaic (@mosaic_so) is a canvas for agentic video editing. Run video edits on autopilot and A/B test multiple variants from the same raw footage. Then jump into a familiar timeline editor for hands-on creative control. Congrats @_adishj, @superfx64, and the team on the public…
Mosaic (@mosaic_so) is a canvas for agentic video editing. Run video edits on autopilot and A/B test multiple variants from the same raw footage. Then jump into a familiar timeline editor for hands-on creative control. Congrats @_adishj, @superfx64, and the team on the public…
.@openfunnel is the Search Engine for GTM. Forget firmographics. Run time-aware searches for pain-revealing activities to surface in-market companies with the right people, at the right time, and in the right context. ycombinator.com/launches/OVM-o… Congrats on the launch,…
announcing @nozomioai's $6.2m fundraise, led by @CRV, @BoxGroup, and @localglobevc. back to work now.
.@verialabs' AI agents continuously pentest your code. Companies ship code daily but test for security once a year. Traditional pentests take weeks and cost $30K+. Veria's agents run 24/7 and find vulnerabilities human pentesters miss. ycombinator.com/launches/OWK-v… Congrats on the…
Over the past few years, DoorDash Labs has been building one of the most sophisticated autonomy stacks designed for the real-world challenges of local delivery. Today, we're introducing Dot, the first commercial autonomous delivery robot to travel on bike lanes, roads, and…
If you are in SF next week, I'll be chatting startups & YC with @ArnaudBonzom on Oct 7th. Come join us! 👉 partiful.com/e/hJSfxKhW4Kp8…
The two jobs required to win at scale, according to DoorDash CEO @t_xu: 1) Relentlessly optimize the present ("build the core"). 2) Patiently invent the future ("build the new"). He stresses that each requires a completely different management playbook to succeed.
Big news: @KoyalAI is now a @ycombinator F25 company. We're building an agentic filmmaking platform that turns your voice into cinematic videos starring you. Grateful to @dessaigne for believing in @gauriagarwal99 and me from the start. Week 1 has been surreal, got to learn…
Paul Graham @paulg
2.1M Followers 778 Following
Garry Tan @garrytan
609K Followers 5K Following President & CEO @ycombinator —Founder @Initialized—designer/engineer who helps founders—San Francisco Dem accelerating the boom loop—e/acc—technology brother
Alexandr Wang @alexandr_wang
333K Followers 838 Following chief ai officer @meta, founder @scale_ai. rational in the fullness of time
Jason ✨👾SaaStr.A... @jasonlk
216K Followers 2K Following GET funded ➡ $200m https://t.co/AVvPIrIdFP🦄🦄🦄🦄🦄🦄 LEARN GTM ➡ https://t.co/X23R2qMajX CHAT with my clone ▶ https://t.co/bwkZCtvqlr Founder/ceo #AdobeSign
Ryan Hoover @rrhoover
305K Followers 2K Following Founder of @ProductHunt. Investor at @WeekendFund. Say hi! 👋🏼
Dalton Caldwell @daltonc
68K Followers 895 Following Founder and Partner @Standard_Cap, Partner Emeritus @ycombinator
Nicole DeTommaso 🪄 @nic_detommaso
75K Followers 564 Following Tweet about All Things VC. Providing insights to demystify the industry🪄. Investor @HarlemCapital | @Columbia alum
Alex Iskold | 2048.vc @alexiskold
57K Followers 2K Following VC | Lead Pre/Seed @2048vc | Pitch me https://t.co/7RMuMRnXF1 | Coach @HarvardHBS | Blog https://t.co/0DoDmSLmNZ | Systems Thinker
Elizabeth Yin 💛 @dunkhippo33
127K Followers 3K Following Co-founder @hustlefundvc. Building a hippocorn company -- market size unknown. Democratizing wealth via entrepreneurship. SF Bay Area native.
Vinod Khosla @vkhosla
687K Followers 604 Following entrepreneurship zealot, grounded technology possibilist, believer in the power of ideas, passionate about sustainability & impact
Reid Hoffman @reidhoffman
778K Followers 674 Following Co-Founder, LinkedIn. Currently using AI to cure cancer faster @manas_co.
sarah guo @saranormous
120K Followers 3K Following startup investor/helper, founder @conviction. accelerating AI adoption, interested in progress. tech podcast: @nopriorspod
immad @immad
58K Followers 2K Following CEO @Mercury. Investor: @RappiColombia, @Airtable, @Rippling, @SubstackInc, @AppliedInt, 300+. Cohost of Founders in Arms Podcast.
martin_casado @martin_casado
69K Followers 3K Following GP @ a16z ... questionable heuristics in a grossly underdetermined world
Yuri Sagalov @yuris
26K Followers 624 Following Dad, husband, brother, son, friend, founder, investor (Supabase, Legora, DecagonAI,+++). MD @GeneralCatalyst. Previously @WayfinderVC @YCombinator.
Dan Siroker @dsiroker
38K Followers 5K Following Co-Founder & CEO of @LimitlessAI: a personalized AI powered by what you’ve seen, said, or heard. Formerly @RewindAI. Co-Founder of @Optimizely (sold for $300M).
Avopay @useAVOPAY_ng
1 Followers 8 Following Simple payments made easy ⚡ | Buy airtime, data & pay bills in seconds | Start using https://t.co/0lNoP99VPY today! 🥳
yaw @yawwwwwwws
48 Followers 2K Following
Clinton James @EarnestTariq
1 Followers 265 Following God first💯HELPING LOYAL FOLKS TO GAIN #FINANCIAL FREEDOM#PRIVATE FIGURE💰🏫
Houmgose Tharel @Sam3352
240 Followers 1K Following
Magne @magne
4K Followers 51 Following Meningene er mine egne. | skaperen @mosar | sr. engineer @corporater prev. @ibm
Bond Maudie🍇 @BondMaudie27181
0 Followers 13 Following
Thomas Apiu @ThomasApiu
1 Followers 49 Following
Rangga Eka Umbara @RanggaEka81292
57 Followers 327 Following
Dahiru Umaru @DahiruU41965
0 Followers 65 Following
Zokirov @Theokirov
2 Followers 114 Following
Dan Shafqat @DanShafqat
0 Followers 1 Following
Pete | Building Prome... @Pete_NoesisAI
1 Followers 46 Following 🧠 Building Prometheus @ Noesis—AI that turns your notes/PDFs into course-aligned quizzes + adaptive feedback. 📈 Learn as you quiz. DM “TEST” for beta signup.
getbyrdseye @getbyrdseye
1 Followers 8 Following
Gleb Gordeev @iamglebgordeev
2 Followers 41 Following
Asare Godwin @godwin60300
0 Followers 91 Following
zach wambugu @zachwambugu643
58 Followers 2K Following #DevOpsEngineer #Tech #MUFC #Hacktivist #Geopolitics #Research #Science #AI
DanTheMan 🛡️ �... @DanTheMan3530
15 Followers 939 Following Forever Irresponsibly Long / RP Advocate
Marlo Matafa @MarloM83521
0 Followers 5 Following
Mathias | AWS cloud @mathias_olah
65 Followers 162 Following cloudbytes | cloud practitioner | solution architect | DevOps.
Mike Moline @m_moline
9 Followers 730 Following
Sindri Johannsson @sjohannss
0 Followers 44 Following co-founder of Framelab. Tweets in English - Icelandic account @sindrijohanns.
Pan P. @pansiraphop
1 Followers 138 Following
@theroyaleditor @RobertDJobson
45K Followers 4K Following Award-winning reporter & #1 Sunday Times & @NYTimes bestselling author. Click link to buy “Catherine, the Princess of Wales”: https://t.co/jFk6uNhRkr
Maximus @SRMaximuss
0 Followers 11 Following
Javed ali Noohani @NoohaniJav96761
0 Followers 63 Following
Андрей @Itdrew13
10 Followers 254 Following
Ditop Nigeria @DitopNigeria
0 Followers 3 Following Nigeria’s trust-first marketplace 🌍 ⚡ Same-day Lagos & Abuja 💳 Escrow-protected payments 📦 Beauty | Accessories | Baby
Jonas Auernhammer @auernhammerj
18 Followers 142 Following Founding Product Designer @nsavecom // https://t.co/iucZVnwXrj // prev. @puma @BuildinAms @Siemens
Ulises @ulisesguras
0 Followers 1 Following
user94375933441 @user94375933441
24 Followers 324 Following money runs the world, goal is to run money
k @k4811650856891
0 Followers 1 Following
faith @faith3585416380
0 Followers 1 Following
Maria Peacock (Cortez... @_MariaPeacock_
390 Followers 1K Following Energy analyst covering upstream sector. Views are my own.
JB @BarryJungreis
27 Followers 265 Following
Brix 🇹🇼🇺🇦 @lbrixnr
32 Followers 327 Following
Dinesh Reddy Kommera @DKommera40793
0 Followers 5 Following
Saskia Giraud @saskiagiraud_
0 Followers 12 Following
Onboarding Buddy @OnboardingBCo
5 Followers 18 Following Your companion for building an onboarding experience your customers will love.
Brags Ventures Intern @VCBrags_Intern
0 Followers 3 Following 21 y/o intern @BragsVentures. Studied Econ at Stanford. I source deals by scrolling Twitter and calling it “thesis-driven research.” My role model is @VCBrags
Jeff Titterton @JeffTitterton
681 Followers 349 Following CMO Stripe. Dad of two great kids. 🏳️🌈. Love running, cycling, the occasional triathlon. San Franciscan.
Paul Graham @paulg
2.1M Followers 778 Following@
0 Followers 0 Following
Suhail @Suhail
389K Followers 510 Following Founder: @mixpanel, next: 🤖🦾🦿 Pizzatarian, programmer, music maker
Alexandr Wang @alexandr_wang
333K Followers 838 Following chief ai officer @meta, founder @scale_ai. rational in the fullness of time@
0 Followers 0 Following
Dalton Caldwell @daltonc
68K Followers 895 Following Founder and Partner @Standard_Cap, Partner Emeritus @ycombinator
Jack Altman @jaltma
110K Followers 543 Following Early stage investor at Alt Capital. Ripping some podcasts at https://t.co/6RDbPN5jq6. Founder of Lattice.
immad @immad
58K Followers 2K Following CEO @Mercury. Investor: @RappiColombia, @Airtable, @Rippling, @SubstackInc, @AppliedInt, 300+. Cohost of Founders in Arms Podcast.
Yuri Sagalov @yuris
26K Followers 624 Following Dad, husband, brother, son, friend, founder, investor (Supabase, Legora, DecagonAI,+++). MD @GeneralCatalyst. Previously @WayfinderVC @YCombinator.
Henrique Dubugras @hdubugras
22K Followers 279 Following Proud Brazilian in Silicon Valley. Co-founder and Chairman @brexhq
Dan Siroker @dsiroker
38K Followers 5K Following Co-Founder & CEO of @LimitlessAI: a personalized AI powered by what you’ve seen, said, or heard. Formerly @RewindAI. Co-Founder of @Optimizely (sold for $300M).
Aaron Harris @harris
26K Followers 90 Following Building better fundraises with founders at Magid and Co. Fan of toys and slingshots. Spent a long time at YC. Aaron Harris is a Registered Rep...
Trevor Blackwell @tlbtlbtlb
25K Followers 992 Following PhD in CS. Robotics. Simulation. @ycombinator
Jessica Livingston @jesslivingston
115K Followers 87 Following Cofounder, Y Combinator; Author, Founders at Work; Host, The Social Radars podcast.
Base @base
1.0M Followers 756 Following A global economy built by all of us. Built on Ethereum, built on the Superchain. Base is beginning to explore a network token.
Coinbase 🛡️ @coinbase
6.6M Followers 147 Following The most trusted crypto exchange. For support: @CoinbaseSupport@
0 Followers 0 Following
François Chollet @fchollet
576K Followers 818 Following Co-founder @ndea. Co-founder @arcprize. Creator of Keras and ARC-AGI. Author of 'Deep Learning with Python'.
John Jumper @JohnJumperSci
1K Followers 0 Following
Fei-Fei Li @drfeifei
527K Followers 1K Following Prof (CS @Stanford), Co-Director @StanfordHAI, Cofounder/CEO @theworldlabs, #AI #SpatialIntelligence #GenAI #computervision #robotics #AI-healthcare
Andrej Karpathy @karpathy
1.4M Followers 1K Following Building @EurekaLabsAI. Previously Director of AI @ Tesla, founding team @ OpenAI, CS231n/PhD @ Stanford. I like to train large deep neural nets.
Andrew Miklas @amiklas
1K Followers 58 Following
TBPN @tbpn
106K Followers 967 Following Technology's daily show. Hosted by @johncoogan & @jordihays. Streaming live 11a-2p PT every weekday and available on Apple, Spotify, & YouTube.
Ankit Gupta @GuptaAnkitV
7K Followers 1K Following general partner @ycombinator. co-founder of @reverielabs (acquired). @harvard CS. 🫶 to @lucylnam.
Katie Dill @lil_dill
33K Followers 922 Following Head of Design @ Stripe. Previously Lyft, Airbnb, and frog. Mom. Wife. Pilot.
Lightcone Podcast @LightconePod
3K Followers 20 Following Techno optimism for technical founders. Hosted by @garrytan, @snowmaker, @sdianahu, and @harjtaggar.
Lenny Rachitsky @lennysan
269K Followers 3K Following Deeply researched product, growth, and career advice@
0 Followers 0 Following
Esther Crawford ✨ @esthercrawford
100K Followers 3K Following product leader. big tech (meta & twitter) and little tech (last startup acquired by twitter).
Ooshma Garg @ooshma
4K Followers 242 Following CEO at Gobble (@gobbleinc). Investing Partner at XFactor (@XFactorVentures).
Erica Brescia @ericabrescia
18K Followers 2K Following MD @Redpoint. Previously, COO @GitHub, co-founder and COO @Bitnami. YC W13.
Tracecat @TracecatAI
596 Followers 2 Following Open source Tines / Splunk SOAR alternative. All-in-one automation for security and IT teams. https://t.co/6iN3SXSuoO Backed by Y Combinator.
Gaby Caliendo @gabycaliendo
547 Followers 212 Following marketing @volleying, prev. alumni community manager @ycombinator
Nikita Bier @nikitabier
607K Followers 2K Following head of product @x, advisor @solana, venture partner @lightspeedvp, ex-founder @gasappteam (acq by discord), ex-founder @thetbhapp (acq by facebook)
Luther Lowe @lutherlowe
16K Followers 6K Following Fighting for little tech. Head of Public Policy, @YCombinator. @Weijia wife guy.
Ryan Loughlin @ryanjloughlin
527 Followers 497 Following
di qi @diqitally
2K Followers 813 Following cofounder @lanterndb (yc w24) prev @ycombinator @meta @princeton
Pete Koomen @koomen
11K Followers 1K Following GP @ycombinator, cofounded @optimizely https://t.co/5hkCw4y95d
John Battelle @johnbattelle
230K Followers 3K Following Taking a break from this place. Posts: https://t.co/TcaEh4ltB9 and folo me here https://t.co/80FchTFJoC & https://t.co/9Rvw9MBPxG
Greg Kumparak @Grg
17K Followers 956 Following tc. yc. sentry. overused the emdash long before ai ty.
Douglas Duhaime @douglasduhaime
1K Followers 669 Following product engineer @ycombinator • formerly experiments @yale • doctorate @notredame • machine learning @proquest
cat @catheryn_li
3K Followers 712 Following building voice AI agents @simpleailab (yc s24). prev @ycombinator @instagram @mit
Alexandra Zatarain �... @a_zatarain
10K Followers 2K Following Co-founder + building the brand at @eightsleep - the world's first sleep fitness company. From Tijuana, MX 🇲🇽 to the world.
Surbhi Sarna @SurbhiSarnaSF
6K Followers 66 Following CEO and Founder of Collate. Prev GP @ycombinator, Founder of nVision, acquired by @bostonsci - Author of Without a Doubt - Napa Grape Grower - Mom of two
Relativity Space @relativityspace
115K Followers 401 Following Building humanity’s multiplanetary future.
Zach Kamran @Zach_Kamran
2K Followers 656 Following Building Simple AI https://t.co/R4SrIe7FLe | prev Head of Product for Bookface @ycombinator
Reshma Khilnani @ReshmaKhilnani
2K Followers 2K Following CEO at Medplum. Previous: Visiting Partner @ YC, founder Droplet, MedXT. Facebook, Microsoft, Box, MIT Alum.
Jaleh Rezaei @jalehr
10K Followers 584 Following Building the world's growth team to end martech as we know it. Founder/CEO @MutinyCorp, ex Head of Marketing @GustoHQ, @YCombinator 2018
Amy Buechler 🦋 @amybue
3K Followers 611 Following The Founder Coach. I help founders scale themselves. prev @ycombinator Batch Director and in-house Founder Coach. Licensed psychotherapist.
Arnav Sahu @arnavsahu341
5K Followers 856 Following Partner @peakxvpartners (fka Sequoia India) in the Bay Area. Worked at @ycombinator, @sparkcapital, @appdynamics, @blackstone @wolfia_app. Always the underdog.
Joan DeGennaro @TheRioDeGennaro
2K Followers 1K Following startup events & community | formerly @ycombinator | mostly retweeting because I'm too verbose for Twitter 📍SF
Stefania Olafsdottir @StefaniaBje
2K Followers 853 Following CEO & CoFounder @avohq. YC alum. Mathematician & philosopher. Was Head of Data @QuizUp. Insatiably curious abt things & ppl. Likely won't get your sarcasm🍦🥖🎸
Ire Aderinokun @ireaderinokun
57K Followers 576 Following UI Engineer, Entrepreneur, Investor / @feminist_co @googledevexpert / @INSEAD MBA
Liz Wessel @lizwessel
16K Followers 1K Following Partner at @FirstRound. Formerly: Co-founder/CEO at WayUp, Visiting Partner at @ycombinator, and Angel Investor (Ramp, Scale, Ro, etc). Wife & Mom.
zain @zainali
5K Followers 715 Following designed some stuff @ycombinator @instacart @yugalabs @meadow making new things 🌍 and building https://t.co/g66HDNcnl4Trends for United States
You might like
