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Dan Siroker

InvestorFounder

Investor at Sequoia Capital · Investing Partner at Rebel Fund · Founder at Limitless · Founder at Mind Emulation Foundation · CEO at Optimizely

Denver, Colorado

Writes $5K – $50K checks · typically $25K

FoundedLimitlessMind Emulation Foundation · YCOptimizely · YC

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About

Dan Siroker is the Co-Founder and CEO of Limitless, an AI product that captures and organizes a user's conversations through a wearable device called the Limitless Pendant. He previously co-founded Optimizely, which was sold for $300 million.

Founder at Limitless

Intro paths

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In turn, Dan can intro founders to Limitless's investors below.

Limitless's investors · 19

Alumni VenturesManchester · $100K – $10M checksAndreessen HorowitzMenlo Park · $500K – $50M checksCollider VenturesTel AvivDaft CapitalPalo Alto · $500K – $2M checksDash VCSan FranciscoDell Technologies CapitalPalo Alto · $500K – $50M checks · since 2026Evolution VC PartnersNew YorkFirst Round CapitalSan Francisco · $100K – $20M checksGaingelsNew York · $200K – $500K checksGrove VenturesTel Aviv-Yafo · since 2026Incubate USLos AltosMeron CapitalTel Aviv · since 2026Moxxie VenturesBoulder · $500K – $2M checksNew Enterprise Associates (NEA)Menlo Park · $200K – $40M checksPreston-Werner VenturesSan Francisco Bay Area · $500K – $3M checksSeven Seven SixPalm Beach Gardens · $500K – $5M checksSnow Leopard Technology VenturesPuneThird DerivativeVela PartnersSan Francisco · $100K – $500K checks

Co-founders at Limitless

DS
Dan Siroker Brett BejcekFounder

Founder at Mind Emulation FoundationYC W18

Intro paths

YC

Dan went through Y Combinator (Winter 2018) — any YC alum in your network can reach them through the YC community.

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In turn, Dan can intro founders to Mind Emulation Foundation's investors below.

Mind Emulation Foundation's investors · 1

Y CombinatorSan Francisco · $500K checks · since 2018

CEO at OptimizelyYC W10

Intro paths

YC

Dan went through Y Combinator (Winter 2010) — any YC alum in your network can reach them through the YC community.

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In turn, Dan can intro founders to Optimizely's investors below.

Optimizely's investors · 35

Accenture VenturesSan Francisco · since 2019Advancit CapitalBoston · $500K – $1M checksAndreessen HorowitzMenlo Park · $500K – $50M checks · since 2015Ashton Kutchersince 2010Bain CapitalBostonBain Capital VenturesBoston · $1M – $100M checks · since 2015Battery VenturesBoston · $500K – $100M checks · since 2012BedrockLos Angeles · $5M – $30M checksBenchmarkSan Francisco · $100K – $15M checks · since 2015Bridge BankSan Francisco · since 2019Citi VenturesNew York · since 2015Correlation VenturesSan Francisco · $100K – $4M checks · since 2015Corsa VenturesAustinDanhua CapitalPalo Alto · since 2015DHVCMenlo ParkFelicis VenturesSan Francisco · $500K – $15M checksFirebolt Ventures Management Company, LlcPalo AltoFounder CollectiveCambridgeGV (Google Ventures)Mountain View · $250K – $50M checks · since 2010Index VenturesSan Francisco · $540K – $10.8M checks · since 2015Insight PartnersNew York · $120M – $350M checksKapor CapitalOakland · $100K – $1M checksKleiner PerkinsMenlo Park · $500K – $15M checksLowercase CapitalJacksonNorthzoneLondon · $1M – $50M checksNotion CapitalLondon · $1M – $100M checksOmega Venture PartnersSilicon ValleySalesforce VenturesSan Francisco · $5M – $50M checks · since 2015Sam AltmanSherpalo VenturesMenlo ParkSound VenturesSanta MonicaSugar CapitalSonoma · $1M – $2M checksSV AngelSan Francisco · $150K – $20M checksTenaya CapitalPalo Alto · $5M – $10M checks · since 2015Y CombinatorSan Francisco · $500K checks · since 2010

Co-founders at Optimizely

PKPete Koomen
Pete KoomenFounder
AD
Andrew DaviesFounder
EB
Edward BarrowFounder
MR
Mikael RunhemFounder

Colleagues at Sequoia Capital

Abby Chuaquico
Executive Assistant (Sequoia Global Equities) at Sequoia Capital
Abhishek Malani
Investor at Sequoia Capital
AJ Cawood
Investor at Sequoia Capital
Alex Moore
Senior Director, Content at Sequoia Capital
Alex Nanda
Partner at Sequoia Capital
Alexandre Berriche
Scout at Sequoia Capital
Alfred Lin
Partner at Sequoia Capital
Anas Biad
Partner at Sequoia Capital

Network12

Arash FerdowsiScout
Co-founder of Dropbox
Aaron G.L. FletcherScout
Managing Partner and Co-Founder at Bios Partners
Alejandro LeónScout
Investor at Unknown Ventures
Blaine VessScout
Investor at Immeasurable
JeffScout
Investment Partner at AME Cloud Ventures
Kulveer TaggarScout
Investor
Terrence RohanScout
Managing Director at Otherwise
Mathilde Collin
Co-founder & Executive Chair of Front
Derrick Li
Principal at Afore Capital
Dharmesh Shah
Angel investor
Max Mullen
Investor at Instacart
Nate Leung
Partner at Sapphire Ventures

Investors connected to Dan in public investor directories — a warm-intro map.

Frequently asked questions

Who is Dan Siroker?
Dan Siroker is the Co-Founder and CEO of Limitless, an AI product that captures and organizes a user's conversations through a wearable device called the Limitless Pendant. He previously co-founded Optimizely, which was sold for $300 million.
Where does Dan Siroker work?
Dan Siroker is Founder of Limitless and at Sequoia Capital and Investing Partner at Rebel Fund and Founder at Mind Emulation Foundation and CEO at Optimizely.
What check size does Dan Siroker write?
Dan Siroker typically writes checks of $5K – $50K.
What companies did Dan Siroker found?
Dan Siroker founded Limitless, Mind Emulation Foundation, Optimizely.

Founder mafias

About this profile. Compiled from public sources — Sequoia Capital's own website and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights