Thomas Sparks
FounderFounder at Cryptoseal
San Francisco, California, United States
FoundedCryptoseal · YC
Find your path to Thomas
1,073 people in our graph share verified history with Thomas — schools, employers, funds. One of them is your warm intro.
Hemant TanejaunlockedThomas: together at Together AI (2025–2026)
×7Thomas: together at Y Combinator
Thomas: together at Together AI
×3Thomas: together at University of California, Santa Cruz
About
Thomas Sparks brings over three decades of infrastructure experience, with background in physical data center operations, colocation facilities, GPU computing environments, and network security architecture.
Founder at CryptosealYC S11
Intro paths
YC
Thomas went through Y Combinator (Summer 2011) — any YC alum in your network can reach them through the YC community.
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In turn, Thomas can intro founders to Cryptoseal's investors below.
Cryptoseal's investors · 1
Co-founders at Cryptoseal
RL
Ryan LackeyFounder/CEO
EB
Erik BerlsFounder
Experience
- Together AIStaff Network Engineercurrent2025 — presentSan Francisco, California, United States
- MytraNetwork Engineer2024 — 2025South San Francisco, California, United States
- FreelanceHybrid Solutions Architect2019 — 2024San Francisco, California, United States
- HashplaneFounder2019 — 2022San Francisco, California, United States
- Standard CognitionManager of Network Operations2018 — 2019San Francisco
- Y CombinatorSystems Engineer2015 — 2018San Francisco
- NorseManager of Network Operations2013 — 2015San Mateo, CA
- CryptoSealFounder2011 — 2014San Francisco Bay Area
- SavicomSystems Engineer2006 — 2011San Francisco, California, United States
- UnitedLayer LLCFounding Network Engineer and CTO2002 — 2006
- HomestoreTeam Lead2001 — 2002
- MusicbankTeam Lead2000 — 2001
- BackflipSenior Systems Administrator1999 — 2000
- MicrosoftSenior Systems Administrator1998 — 1999
- Sirius ConnectionsTechnician1995 — 1996
Skills & more
IPv61IPv41Network Installation1Problem SolvingProject ManagementOral CommunicationData Center82Networking56Network Architecture53Cloud Computing48Security34System Administration21
+12 more
RoutingNetwork EngineeringIPTelecommunicationsNetwork SecurityStart-upsTCP/IPDNSVirtualizationManaged ServicesManagementCisco TechnologiesLanguages English · Spanish · Swedish
From Thomas's professional profile.
Frequently asked questions
- Who is Thomas Sparks?
- Thomas Sparks brings over three decades of infrastructure experience, with background in physical data center operations, colocation facilities, GPU computing environments, and network security architecture.
- Where does Thomas Sparks work?
- Thomas Sparks is Founder of Cryptoseal.
- What companies did Thomas Sparks found?
- Thomas Sparks founded Cryptoseal.
- Where did Thomas Sparks go to school?
- Thomas Sparks studied at YCombinator (Combinating, Cryptography); University of California, Santa Cruz (Economics).
Founder mafias
Y Combinator mafia10,230
Also came through, then founded or led a company.
Sam AltmanPresidentFounded Tools for Humanity +3Garry TanPresident & CEOFounded Y Combinator +1Jessica LivingstonCo-founderFounded Y CombinatorAlexis OhanianPartnerFounded RedditFred EhrsamYC Summer 2012Founded Nudge +1Matt HuangYC Winter 2011Founded Paradigm +1
+ 10,223 more
University of California, Santa Cruz mafia62
Also came through, then founded or led a company.
Daniela AmodeiBachelor of Arts (B.A.)Founded AnthropicTim ThimmaiahBusiness ManagementFounded Toneden +1Brian VallelungaBachelor’s DegreeFounded Doppler Technologies Inc +1Mike CagneyMSFounded Figure Markets +1Josh NicholsonBachelor of Science (B.S.)Founded Scite +1Dimitri StiliadisMSFounded Aporeto +1
+ 55 more
Together AI mafia6
Also came through, then founded or led a company.
Standard Cognition mafia4
Also came through, then founded or led a company.
Same school
Also attended YCombinator2,000
Tarek MansourCo-founder & CEO of KalshiSuhail DoshiFounder of Mixpanel; founder of ParticleSubomi OluwalanaCo-founder & CEO of ConvoyArhaan A.Deeptech Fellow at Clear VenturesCollin WallaceGeneral Partner at Lobby CapitalVictor SantosVictor Scout at One Way Ventures
+ 1,994 more
Also attended University of California, Santa Cruz185
Daniela AmodeiCo-founder & President of AnthropicNeha JewalikarDirector of Communications at Scale Venture PartnersChristine SamsAssistant Controller at Crosslink CapitalAnne FoorInvestor at Khosla VenturesNoor NijjerHead of Investor Relations at Sierra VenturesJohn BurkeCo-Founder, Managing Partner at PROOF
+ 179 more
Shared employers
Also worked at Standard Cognition7
Aki SiebelinkOperations Team at Autotech VenturesEvan WijayaPrincipal at Touring CapitalRatan ManehaniPartner at R136 VenturesDevdutt YellurkarInvestor at CRV (Charles River Ventures)John NovakFounder/Head of Hardware Engineering at Standard AINick LocascioFounder at Booth AI
+ 1 more
Also worked at Y Combinator428
Garry TanPresident & CEO of Y CombinatorJessica LivingstonCo-founder of Y CombinatorDaniel GrossMeta Superintelligence Labs; co-founder of NFDG and Safe SuperintelligenceAlexis OhanianFounder & General Partner of Seven Seven SixMichael SeibelPartner Emeritus at Y CombinatorDalton CaldwellCo-founder of Standard Capital; Partner Emeritus at Y Combinator
+ 422 more
Also worked at Savicom1
Also worked at Homestore16
Jed KatzManaging Director at Javelin Venture PartnersJennifer DulskiInvestor at Roble VenturesRob KrolikGeneral Partner and CFO at Burst CapitalKatrien De PoorterHead of HR & CHRO at Meusinvest (Noshaq)Elizabeth CholawskyOperating Advisor at Updata PartnersIan BradleyChief Operating Officer at Breakout Capital
+ 10 more