FirstMark @FirstMarkCap
Early-stage venture capital firm based in New York City. firstmark.com New York, NY Joined November 2009-
Tweets7K
-
Followers21K
-
Following477
-
Likes8K
We dove into some of the the spiciest AI & infra topics this week, including: ⚡ Repeating the sins of cloud 1.0 ⚡ Vibe-coding-fueled security gaps ⚡ Coding velocity (and instability) increasing ⚡ Urgent talent pipeline challenges ...and many more Huge thanks to @armon,…
AI is already way smarter than us…so why is building effective agents still so difficult to do? The key insight to unlocking Accounting AGI? Per @mitch_troy, co-founder of @trybasis, it all centers on giving agents a coherent, stable ontology to interact with the world
Capping it all off with some great lessons from building one of the leading vertical AI app layer companies @GabeStengel @RogoAI * Solving specific problems requires great engineering above & beyond general intelligence * Like we’ve seen in labeling with Mercor, Scale AI, etc,…
Follow @FirstMarkCap on Luma for the next one on 10/29 featuring @DynamicWebPaige, @danielreidcahn, @sneha8sivakumar luma.com/user/firstmark
End of summer blues could never get the NYC AI & Data ecosystem down Kicking off the first Data Driven NYC of the season with a line down the block to see demos from @trybasis @RogoAI & @TextQL @mattturck @FirstMarkCap
A huge shout out to our @github community! We’re delighted by the incredible support for the SurrealDB repo, which has helped us surpass 30,000 GitHub Stars.
Thrilled to announce our next round of speakers for Guilds by FirstMark this fall! If you're an SVP or C-level executive at a tech company valued at $1B+, and you'd like access to these events, learn more and apply to join at guilds.firstmark.com
Goodbye Excel? AI Agents for Self-Driving Finance My conversaton with Eleonore Crespo, Co-CEO of @PigmentAI: the planning platform for Antrophic, Figma, Uber, Coca Cola etc 00:00 - Intro - meet Pigment and Eleonore 01:22 - Building Pigment: 500 Employees, $400M Raised, 60%…
As a founder, I know cash flow stress firsthand. It can make or break a brand. That’s why I joined @HighbeamApp. Today we raised $30M to build the platform I wish I’d had — one that helps operators simplify cash management and scale profitably.
We just raised $30M to build the AI-powered financial command center for consumer brands, led by @AcrewCapital. Cash is the lifeblood of every brand. @HighbeamApp makes it simple to stay in control and grow profitably. The future of finance isn’t spreadsheets. It’s Highbeam.
Spreadsheets won’t run your business finance stack forever. @HighbeamApp is building AI finance agents that optimize cash every day, automatically. We just raised $30M to accelerate that vision. The future of finance for brands is autonomous.
Pretty wild to see an AI startup as *the* market leader with all the hyperscalers in the challenger quadrant
Pretty wild to see an AI startup as *the* market leader with all the hyperscalers in the challenger quadrant
Next Data Driven NYC (event #118) - Wed Sept 17 * @mitch_troy, founder, @trybasis (agents for accountants) * @GabeStengel, founder, @RogoAI (Generative AI for financial firms) * @TheEthanDing, founder, @TextQL (enterprise data agents) RSVP: see reply post below
2025 has been a wild year for AI video. My conversation with @c_valenzuelab, CEO of @runwayml: 00:00 – Meet Cris and Runway – AI Video's Wild Year 01:48 – Runway's AI Film Festival Goes From Chinatown To IMAX 04:02 – Hollywood's Shift: From Ignoring AI To Adopting It At…
Thank you for 10,000 stars and 100 contributors — on the same day! We're excited to continue building a next-generation open-source stack for LLM applications. Find us on GitHub ↓
Today in ‘VCs congratulating portfolio companies but really congratulating themselves’: major kudos to @dataiku, @clickhouse and @synthesiaIO for being nominated to the Forbes #cloud100 list
Another record-breaking stretch at @synthesiaIO: - Crossed $100m ARR in early April 2025 - Doubled revenue YoY (Growth accelerated to 100% from 80% at Series D) - Hit 142% NRR (up from 119% a year ago) - Quadrupled our $100K+ customer base in 12 months - Trusted by +80% of…

Matt Turck @mattturck
125K Followers 2K Following VC at @FirstMarkCap. I'm a VC, so of course I have a podcast: https://t.co/Usnenl0zfI
Nicole DeTommaso 🪄 @nic_detommaso
75K Followers 564 Following Tweet about All Things VC. Providing insights to demystify the industry🪄. Investor @HarlemCapital | @Columbia alum
Mac The VC @MacConwell
99K Followers 40K Following Managing Partner @RareBreedVC | underrepresented founders | Hacker turned Hustler | Entrepreneur | Vampire | Former Gamer | @inside | @KauffmanFellows class #26
Rex Woodbury @rex_woodbury
39K Followers 1K Following Building @Daybreak_Fund. Prev @IndexVentures. Writing about how technology & people intersect at https://t.co/LMdIBPFx8A. Investing at Pre-Seed, Seed.
Caroline Casson @carolinecasson_
13K Followers 2K Following VC + angel investor 💼 • golfer ⛳️ • adventurer 🌏 • wife to @tom_casson 💍 • mom to charlotte + chloe 👯♀️ + sailor 🐶
Jarrid Tingle @jarridvtingle
28K Followers 849 Following Building the Motown of VC @HarlemCapital. I tweet about VC, business lessons, and equality.
jess lozano schmitt @JessLozanoS
39K Followers 5K Following ~something new~ prev. airplanes @JetBlueVentures | MSc Business Analytics | all opinions are (unfortunately) my own
Christine Concepción @ChristineIsGood
4K Followers 536 Following Managing Director VC | NYC @Columbia_Biz MBA | @Columbia BA | 🏳️🌈 all opinions are my own 🥥 🌴
Trace Cohen @Trace_Cohen
21K Followers 10K Following GP @ Six Point Ventures pre/seed fund - Vertical Ai 🤖 🇺🇸🇮🇱// Exited Founder Operator + Angel Investor // Weekly startup tech VC newsletter to thousands
Lisa Xu @lisamxu
4K Followers 1K Following Partner @thresholdvc investing in early stage startups // alum @FirstMarkCap @onepeloton @Handy @BainandCompany @Wharton // #longNYC 🗽
Tyler Plummer @Tyler_Plummer
2K Followers 4K Following I’ve been vibe manufacturing since 12 years old as a 3rd Gen Aluminum Die Caster and Mold making. Top Die Casting is the M.O. https://t.co/mZIKrD2ncq
pixiq @pixiqmakes
86 Followers 467 Following Maker 🧙🏽♀️ UGC Creator 📸 Dance Gamer 🕹️ UC Berkeley Alumna 🐻 Twitch! https://t.co/n88X8ZkcW5
bioPharma Bro @SamuelOjey
58 Followers 537 Following Merging Software and Hardware for Biopharma Manufacturing | Self-taught Mechatronics Engineer | Marksman | Deeptech x Lifesciences
Synthia Farrill @oratorsbelays_f
66 Followers 51 Following
Test Sample @TestSample29775
154 Followers 2K Following
青云$M | 🐜 @qingyun88888
52K Followers 19K Following 青云社区创始人|Founder of Qingyun Society| 投研报告|项目线程|撸毛教程|信息分享|无投资建议| #Binance |KOL经理 WEEX注册:https://t.co/6bQESToAfw 宣发📩合作TG:@qingyunbtc
Martino Cadoni @MartinoCadoni
87 Followers 441 Following Founder at MC4 Ventures | Strategic Advisor @Football_BM @plannix | $1B+ Fundraising, $20bn M&A exits, IPOs | VC, Private Equity, Fintech & Sports | @klarna
Razy @Raya100100
3 Followers 2K Following
Andrew B. @a_bondale
16 Followers 280 Following
Chongkal @Chongkal1
632 Followers 1K Following Co-founder at Tely AI – Get your company discovered in ChatGPT
Guorep @Guorep872
30 Followers 1K Following
Romain Nouzareth @RomainBTC
3K Followers 3K Following CEO & Co-Founder of SATO Technologies. TSX.V:SATO 🇨🇦 OTCQB:CCPU.F 🇺🇸 @SATO_Compute Building infrastructure for high density compute. AI
Tyler @TG01_Actual
227 Followers 380 Following Principal Architect & Security Researcher | Recovering OSINT & Threat Hunter | Builder of AI/ML and security things
Shubham Malhotra @ShubhamMal72313
34 Followers 367 Following Software Engineer | Researcher | Cofounder @runanywhereai
Olando @Olaide553708
440 Followers 2K Following
Adnaan @adnaaaannnn_
570 Followers 3K Following
Sameer Bansilal MD, M... @sameerbansilal
1K Followers 757 Following Heart doctor with common sense. I tweet my own horn. Trialist @MountSinaiHeart @TIMIStudygroup VP-@Alnylam Ex-VP@Bayer Bronx VAMC (WOC) Report to @amrita_gupte
Shohei Onishi @0101shohei
2 Followers 21 Following
Batholomew Hottor @Batholomew58231
4 Followers 142 Following
Alan Crabbe 🇮🇪�... @al_portan
824 Followers 815 Following Fintech founder | I run, I kiteboard, I #explore new ideas. Made in N. Ireland #crowdfunding #investment #equity #brands #community
Sudhama Bhatia @SudhamaBhatia
493 Followers 2K Following [email protected] - Voice AI Agents to automate contact centers | Prev Founder @qrevai, @thetrackapp, Co-founder @Muzenly, Engg @GoldmanSachs, Engg @Knewton
Assefaw Tewolde Serra... @dassefaw
170 Followers 1K Following CEO Biohack & Macrolab (https://t.co/DKToTc93G8)
Limi.AI @Limiai_uk
10 Followers 68 Following We can’t make people smarter so we make smarter spaces.
API Platform @sapiplatform
89 Followers 3K Following SSOT API Management & Data Distribution / Monetisation Platform.
vishwa @k_vishwa24
37 Followers 2K Following Integral Civilization - Funding Humanity Forward since 2025
Hunter @huntermbown
160 Followers 567 Following
Rex @rex_nummorum
568 Followers 4K Following REPE by day, gunslinger by night. Reality’s your Huckleberry.
Shaun Jayachandran @ShaunJay
5K Followers 5K Following Founder @CrossoverBBall & Tech Product Manager — Impacting Gender Equity & Education Rates in 🇮🇳 using 🏀 as vehicle of change. 🇨🇦 & 🇺🇸 #HoopsCreatingHope
Andrew Chang @andrewychang
1K Followers 851 Following clarity over noise. pre-seed & seed stage @Rsquaredvc 🇰🇷🇺🇸 #GoDawgs
treecashflow @treecashflow
46 Followers 3K Following @stanford stochastic parrot sampling ideas in tech and finance
Harold Sharon @RealMooncusser
14 Followers 243 Following
Nilla @saldu423
93 Followers 7K Following
Debajoyati @Debajoyati731
233 Followers 7K Following
Lisa Choi @ChoiLisaT
7 Followers 90 Following
Gherardo @tesespe
1 Followers 90 Following
Matt Turck @mattturck
125K Followers 2K Following VC at @FirstMarkCap. I'm a VC, so of course I have a podcast: https://t.co/Usnenl0zfI
Harry Stebbings @HarryStebbings
299K Followers 365 Following 🎤 @twentyminutevc, 🏦 @20vcfund, @projecteurope_😇 @perplexity_ai @linear @fyxerai @cognition @lovable_dev @airwallex @mercor_ai @getcaptionsapp
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
Jenny Fielding @jefielding
41K Followers 3K Following Managing Partner, @EverywhereVC investing in pre-seed founders building the future of money, health and work 🚀
Tweets from Zach Wein... @zachweinberg
75K Followers 422 Following I do healthcare & tech stuff. Founder of https://t.co/uJTXjZVNJt, Flatiron Health (acq @Roche~$2b) & Invite Media (acq @Google~$81m). Invest @ https://t.co/2D00yW2Be4
logan bartlett @loganbartlett
63K Followers 902 Following md @redpoint / I have a podcast @loganbartshow / mostly tech with some vols, knicks and hip hop tweeting mixed in
martin_casado @martin_casado
69K Followers 3K Following GP @ a16z ... questionable heuristics in a grossly underdetermined world
Alex Konrad @alexrkonrad
87K Followers 4K Following Founder and editor of @upstartsmediaco, a new tech publication focused on the startup ecosystem. Previously @Forbes senior editor. Email: [email protected]
sarah guo @saranormous
120K Followers 3K Following startup investor/helper, founder @conviction. accelerating AI adoption, interested in progress. tech podcast: @nopriorspod
Lisa Xu @lisamxu
4K Followers 1K Following Partner @thresholdvc investing in early stage startups // alum @FirstMarkCap @onepeloton @Handy @BainandCompany @Wharton // #longNYC 🗽
Serena Williams @serenawilliams
10.2M Followers 369 Following Tennis Player turned VC Investor @SerenaVentures founder & entrepreneur
Beth Viner @bviner
692 Followers 226 Following Partner and Head of Platform @FirstMarkCap; @bcg, @kickstarter and @IDEO alumni, early bird, book lover, abandoner of high heels for sneakers
VentureBeat @VentureBeat
705K Followers 2K Following Obsessed with covering transformative technology.
Business Insider @BusinessInsider
4.1M Followers 400 Following What you want to know about business. Love Business Insider? Add us as a preferred source on Google.
vera @vverawang
743 Followers 646 Following growth @firstmarkcap! / from silver lake, @columbia, toronto
The Information @theinformation
121K Followers 704 Following The most authoritative publication covering tech that high-powered tech execs and founders read daily. TITV M-F at 1 ET: https://t.co/M0NywExhuj
LM Studio @lmstudio
39K Followers 96 Following Download and run local LLMs on your computer 👾 https://t.co/e2E0DLMFJ5
TensorZero @TensorZero
1K Followers 2 Following open-source stack for industrial-grade LLM applications ⤷ gateway · observability · optimization · evaluation · experimentation
Viraj Mehta @thebigmehtaphor
645 Followers 492 Following cofounder and cto @tensorzero. previously did a PhD at CMU doing sample efficient reinforcement learning for tokamaks and math and cs @stanford before that
Gabriel Bianconi @gabrielbianconi
2K Followers 186 Following ceo @tensorzero · open-source stack for industrial-grade LLM applications
Function Health @function
20K Followers 7 Following One mission — 100 healthy years. Access 160+ lab tests, advanced imaging, and expert insights.
Kathryn Weinmann @kathrynweinmann
95 Followers 262 Following
Moiz virani @moizjv
465 Followers 861 Following Co-founder @dealmomentum. Past @blamelesshq,@saucelabs
sridhar @RamaswmySridhar
29K Followers 617 Following CEO @snowflake; founder @neeva Ex-@GreylockVC Ex-@Google SVP of Ads Ex-@BellLabs.
Brendan Humphreys @brendanh
574 Followers 437 Following Head of Engineering @ Canva. Cryptic crossword tragic. Want a better world for my two kids.
Romain Niccoli @romain_n
811 Followers 404 Following co-CEO & co-founder at Pigment. Ex CTO & co-founder @criteo and Less
CNBC's Fast Money @CNBCFastMoney
455K Followers 2K Following Fast Money with @MelissaLeeCNBC airs weeknights at 5P ET, only on @CNBC and streaming on CNBC+. America's post-market show.
Michael Rubenstein @mrubenstein99
5K Followers 588 Following Co-Founder & Co-CEO at Firsthand. Previously President at AppNexus/Xandr, Founder/GM at DoubleClick/Google, #dadvocate
Firsthand @FirsthandLabs
70 Followers 1 Following Firsthand Brand Agents dynamically deliver your knowledge wherever consumers need it, in the moments that matter.
Sparta @SpartaCommo
2K Followers 288 Following For traders who want to anticipate future pricing trends and seize opportunities, Sparta provides real-time, actionable market intelligence.
Arnav Bimbhet @abimbhet
330 Followers 791 Following Partner @FirstMarkCap. Ex @ICONIQGrowth - fly on the wall @snowflakeDB @datadoghq @mirohq @fivetran @hashicorp @collibra @hightouchdata @dataiku @getreprise
jamiegoldstein @jamieagoldstein
3K Followers 1K Following @Pillar_VC Founder & Partner. Avid fan of anything involving a mountain. Husband to jgoldstein + dad of three amazing boys.
Alaffia Health @Alaffiahealth
20 Followers 1 Following At Alaffia Health, we partner with health insurance payers to lower healthcare costs by eliminating overpayments.
H @hcompany_ai
19K Followers 62 Following Forging Superintelligence. Putting AI to work for you, with #RunnerH sparking the agentic AI revolution.
Laurent Sifre @laurentsifre
4K Followers 465 Following Co-founder & CTO @hcompany_ai. Previously, research scientist @GoogleDeepMind - AlphaGo, AlphaFold, AlphaStar, Chinchilla, Gemini, Gemma.
WRITER @Get_Writer
8K Followers 37 Following WRITER is where the world’s leading enterprises orchestrate AI-powered work | Dream Big, Build Fast | Fueled by our Palmyra LLMs
Nicholas Carlson @nichcarlson
35K Followers 795 Following CEO, EIC, and Production Assistant at Dynamo
Alex 🦅 Eagle @Jakeherringbone
5K Followers 454 Following Enable faster Build&Test with 🌿Bazel https://t.co/tX0ypSyIeS
Aspect Build @aspect_build
120 Followers 185 Following Bazel support and platform. Build confidently with Aspect. Reduce time and complexity to operate Bazel at scale.
Crisp Data Platform @Go_Crisp
95 Followers 177 Following Crisp leverages the cloud to connect and analyze retail data sources in real-time, providing you with meaningful insights and trends for your business.
Dan Primack @danprimack
157K Followers 5K Following Biz editor @Axios. Pro Rata newsletter. [email protected]. Native Masshole. DM for Signal/Telegram.
Jefferies @Jefferies
11K Followers 48 Following Jefferies, the global investment banking firm serving clients for more than 60 years. Follow us for company news and economic insights.
Ashley Wilson @awilson820
573 Followers 327 Following Co-founder, COO @dealmomentum. Founder @olivineagency. Singer & songwriter. Trying to stay in balance and in tune.
Momentum @dealmomentum
255 Followers 123 Following Momentum’s AI Agents work alongside your GTM Team to close deals and expand business—all seamlessly integrated into your workflow.
Santiago Suarez Ordo�... @santiycr
1K Followers 290 Following CEO of @dealmomentum. I love building products. I spend a lot of my time learning and I try to help others.
JJ @Joseph_Jacob13
1K Followers 4K Following Building an Agentic OS for Supply Chain at burnt. I used to buy 100m lbs of shrimp every year.