Sinai Capital Partners
Venture capitalPre-Seed–Seed · 3 people tracked
Investment thesis
Sinai Partners is an early-stage venture fund focused on backing builders and innovators developing transformative deep technologies. The firm invests in areas expected to shape the coming decades, including robotics, quantum technology, compute architecture, energy, internet-of-things, and biotech. Positioning itself as run by experienced technologists and operators, it aims to help founders navigate the challenges of bringing ideas to market. The firm emphasizes a global network of collaborative relationships with academics, accelerators, and domain experts, providing founders access to expertise while they concentrate on technical innovation. Its stated approach favors extraordinary, frontier ideas over the status quo.
Source: firm website, verified Aug 7, 2026.
Team · 3 people
from the firm's website
What they invest in
from 21 of 23 portfolio companiesSaaS ×7AI & Machine Learning ×5Enterprise Software ×5Fintech ×5Healthtech ×4B2B Marketplaces ×3Data & Infrastructure ×3Marketplaces ×3
HQs:United States×12Canada×1India×1
Who they back
founder profiles across 15 portfolio companiesFounding team size:solo founder×62 founders×53 founders×34+ founders×1
Where their founders studiedfrom 18 founders with education data
Massachusetts Institute of Technology ×3Cornell University ×2Yale University ×2
Where their founders worked beforefrom 21 founders with career history
Founders Fund ×2General Assembly ×2Prehype ×2
Accelerator rootsportfolio companies that came through a program
1 founders hold a PhD · 1 hold an MBA (of 20 with degree data)
Investments · 23 tracked
founders shown can be your intro path
Compass is a real estate brokerage that uses technology to help consumers find homes.
B2B MarketplacesEnterprise SoftwareMarketplacesPropTechSaaSManhattan, US
Robert Reffkin(Founder & CEO)Ori Allon(Founder & Chief Strategist)Brad Serwin(Executive Officer)Kalani Reelitz(Executive Officer)Ethan Glass(Executive Officer)Scott Wahlers(Executive Officer)
Co-investors.406 VenturesAdvance Venture PartnersAlpaca VCCorigin VenturesEntropy Industrial CapitalGlynn Capital Management+5 more
Pinterest operates a visual discovery platform where users save and browse images organised into boards, used heavily for shopping, recipes and design.
San Francisco, US
Evan Sharp(Co-founder & CDO)Benjamin Silbermann(Executive Officer, Director, Promoter)Ben Silbermann(Co-founder & CEO)inPaul Sciarra(Co-founder)Mike Yang(Executive Officer)Natalie Fair(Executive Officer)
Co-investorsA.Capital VenturesA*ABC QuantACE VenturesAcequia Capital (AceCap)Acumen+56 more
Anduril Industries is a defense technology company that builds autonomous systems and AI-powered software for the United States and allied militaries.
AI & Machine LearningDeep TechFintechGaming
Palmer Luckey(Founder)Brian Schimpf(CEO)inTrae Stephens(Founder)in
Co-investors137 Ventures1Flourish Capital8VCAltra VentureAndreessen HorowitzAnorak Ventures+82 more
C16 Biosciences produces high-value lipid ingredients using fermentation of naturally occurring microorganisms for manufacturers of beauty, personal care, home care, and food products.
BiotechCleantechClimate TechConsumerHealthtechNew MaterialsNew York City, US
Shara Ticku(Founder/CEO)inDavid Heller(Founder)inHarry McNamara(Founder)in
BoardAndrew Shumaker(He resigned as a Director effective November 20, 2018.)
Co-investorsBreakthrough Energy VenturesDCVC (Data Collective)Dorm RoomE12 Venture Capital, LlcEvolution VC PartnersUpHonest Capital+2 more
Carta is a cloud-based ERP platform for private capital markets that manages cap tables, equity administration, fund management, and valuations for startups, private companies, and venture funds globally.
Enterprise SoftwareFintechSaaSSan Francisco, US
Henry Ward(Co-founder)Manu Kumar(Co-founder)inCharly Kevers(Chief Financial Officer)Jeff Perry(Chief Revenue Officer)Nick Avery(Chief People Officer)Nicole Baer(Chief Marketing Officer)
Co-investorsA*Align VenturesAmity VenturesAndreessen HorowitzAnthemis VentureDraper Associates+35 more
Dutchie operates an online marketplace connecting consumers with cannabis dispensaries across North America, offering real-time menus, order-ahead pickup, and delivery.
E-commerceMarketplacesRetail Tech
Zach Lipson(Founder)in
Co-investorsCasa Verde CapitalGlynn Capital ManagementLevel One FundTidemarkVine VenturesGron Ventures, Llc+3 more
Esusu is an economic mobility platform that helps working families build credit and strengthen financial stability through rent payment reporting.
FintechImpact & Social GoodPropTechNew York, US
Robert C. Henning(Executive Officer)
BoardSamir Goel(Executive Officer, Director)Wemimo Abbey(Executive Officer, Director)
Co-investorsAcumen AmericaImpact America FundMotley Fool VenturesNext Play VenturesOpen Opportunity FundPredictive VC+6 more
Front is a support and sales platform that combines messaging, internal collaboration, and AI automation to handle customer requests and sales workflows.
AI & Machine LearningEnterprise SoftwareFuture of WorkSaaSSales TechSan Francisco, US
Mathilde Collin(Co-founder & CEO)inLaurent Perrin(Founder/CTO)in
Co-investorsBattery VenturesCoatue ManagementFundersClubHypothesisKleiner PerkinsSpice Capital+3 more
Ghost is an AI-native wholesale distribution platform that connects brands with retailers, letting brands list surplus and wholesale inventory with controls over pricing, channels, and geography while buyers source products from vetted suppliers.
AI & Machine LearningB2B MarketplacesRetail Tech
Co-investorsCoalition OperatorsEniac VenturesEqual VenturesFour Acres CapitalShrug Capital
Hippo is an online insurance marketplace that helps customers find and compare home insurance policies, auto insurance, and flood coverage from top-rated carriers through a streamlined quoting process.
B2B MarketplacesInsurTech
Co-investorsAbstract VenturesBetter Tomorrow VenturesFelicis VenturesICONIQiGlobe PartnersInnovius Capital+7 more
HR TechSeattle, US
Todd H.(Founder)inSara Itucas(Director)Joseph Davy(Director)Alexander Ross(Director)inTodd Heine(Executive Officer, Director)
Co-investorsAmplo VenturesOne Way VenturesSwell PartnersTechstarsTrust Ventures
MANTL provides omnichannel deposit origination technology that enables banks and credit unions to open consumer and commercial accounts both in-person and online.
Enterprise SoftwareFintechSaaSNew York City, US
Benjamin Conant(Founder)in
Co-investorsClocktower VenturesPoint72 VenturesSocial StartsTechstarsVine VenturesBoxGroup+1 more
Varda industrializes low Earth orbit by manufacturing pharmaceuticals and other specialized products in space, then returning them to Earth via reusable reentry capsules.
BiotechDeep TechSpace TechEl Segundo, US
Will Bruey(Founder)inDelian Asparouhov(Founder)in
Co-investorsAlso CapitalCaffeinated CapitalFounders FundKhosla VenturesLux CapitalGeneral Catalyst+25 more
OkCredit is a free digital ledger (bahi khata) app that lets Indian shopkeepers, kirana stores, and wholesalers record customer credit and payments, send automatic payment reminders, and collect via UPI.
FintechRetail TechSaaS
Co-investorsIndex VenturesPathbreaker Ventures
Players' Lounge is a platform where gamers wager real money on personalized challenges in popular video games such as Warzone, NBA2K and Marvel Rivals, playing in 1v1 matches or tournaments.
ConsumerGamingMarketplaces
Zach Dixon(Founder)in
Co-investorsMaC Venture CapitalSamsung NextSharp AlphaRRE Ventures
Rebellyous develops plant-based chicken nuggets and proprietary manufacturing systems designed to enable efficient, clean food production with improved working conditions.
Advanced ManufacturingClimate TechFoodTechHealthtechImpact & Social GoodSeattle, US
Christie Lagally(Founder/CEO)in
Co-investorsAgronomicsBlue Horizon CorporationClear Current CapitalFifty YearsPortfoliaThe Venture Collective+4 more
Ro is an online healthcare platform that connects patients with licensed providers and delivers prescription treatments, including GLP-1 medications for weight loss, ED treatments, and other health goals.
Digital HealthDirect to ConsumerHealthtechSilicon Valley, US
Zachariah Reitano(Founder)inRob Schutz(Founder)inSaman Rahmanian(Founder)in
Co-investorsAmbush CapitalAnsa CapitalBlack Jays Venturesblue 9 capitalBoxGroupBY Venture Partners+19 more
ScienceIO provides an AI platform that converts unstructured medical text into enriched, structured data, including identifying protected health information and mapping medical terms to millions of clinical concepts via API.
AI & Machine LearningData & InfrastructureHealthtech
Co-investorsDorm RoomEarl Grey CapitalSwell PartnersToba CapitalUntapped VenturesVibe Capital+1 more
Skyrise operates an audience design platform ("where + when") that builds bespoke advertising audiences and insights using anonymised mobile network and financial transaction data, without personal details or cookies.
AdTechData & InfrastructureMarketing Tech
SkyWatch provides an API and platform for accessing, managing, and distributing geospatial and satellite data to commercial users.
Data & InfrastructureSaaSSpace TechWaterloo, CA
James Slifierz(Co-Founder and CEO)inDexter Jagula(Co-Founder and Head of Government Relations)in
Co-investorsBullpen CapitalDrive CapitalGolden VenturesInnovative Solutions CanadaSpace Capital
The page shows only navigation elements (Locations, Membership, Offerings, WELLInformed) and a search bar for services, classes, and articles, with no descriptive content about the company's business.
Wellness & Fitness
Sarrah Hallock(Founder)inRebecca P.(Founder)in
Co-investorsDreamers VCNew Enterprise Associates (NEA)
Unqork provides a low-code/no-code platform that helps enterprises in financial services, insurance, and healthcare build and manage complex software systems with governance, security, and transparency.
AI & Machine LearningDeveloper ToolsEnterprise SoftwareSaaSNew York, US
Gary Hoberman(Founder & CEO)inAlex Schmelkin(Executive Officer)Bassam Chaptini(Executive Officer)David Sullivan(Executive Officer)
Co-investorsBlue CollectiveCapitalGEQUIAMFin CapitalMarch Capital PartnersMillennium New Horizons+7 more
Exits · 2
IPOs and acquisitions across the tracked portfolioCompass (NYSE:COMP)NYSE: COMPPinterestNYSE: PINS
Portfolio news
latest coverage across their companiesAnduril · bloomberg.com · Aug 10, 2026
Compass (NYSE:COMP) · ng.investing.com · Aug 4, 2026
Pinterest · opportunitiesforyouth.org · Jul 30, 2026
Carta · medicalbuyer.co.in · Jul 14, 2026
Rebellyous Foods · greenqueen.com.hk · Jan 9, 2026
Esusu · finsmes.com · Dec 16, 2025
Hippo Home Insurance · prnewswire.com · May 7, 2025
Frequently asked questions
- How many investments has Sinai Capital Partners made?
- Sinai Capital Partners has 22 tracked investments, 2 of which have exited via acquisition or IPO.
- What stage does Sinai Capital Partners invest at?
- Sinai Capital Partners invests at the Pre-Seed, Seed stages.
- What sectors does Sinai Capital Partners focus on?
- Sinai Capital Partners focuses on Biotech, Deep Tech, Energy, Hardware, IoT, Media & Entertainment, Quantum Computing, Robotics, SaaS, Semiconductors.
- Does Sinai Capital Partners lead rounds?
- Sinai Capital Partners typically participates in rounds rather than leading them.
- Who does Sinai Capital Partners co-invest with?
- Sinai Capital Partners most often shares deals with Vine Ventures, Y Combinator, Glynn Capital Management, among 140 tracked co-investors.
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