Themes
Sahin Boydas's Portfolio in a YC-Inspired Style
Design homage; not affiliated with or endorsed by Y Combinator.
Search and filter every company in the portfolio.
Companies
234 of 234 companies
A
Aalo AtomicsCreating abundant and dependable clean energy to power humanity for generations
AetherBiotech
AgentAstraAgent Astra builds AI-driven software for logistics operators that brings structure to freight operations, helping teams move containers faster and track shipments reliably.
Airtrek RoboticsAerial robotics for inspection and surveying
AlphaFlowInactiveTech-enabled investment in real estate loan acquisition.
AltoIRAThe self-directed IRA platform for all your alternatives
Ancient CrunchMakes traditional American snacks with healthy, high-quality ingredients.
Anello PhotonicsAnello is building advanced navigation sensor solutions for the autonomous world
AnthropicBuilding reliable, interpretable, and steerable AI systems
Apollo AtomicsEnergy
Apollo GraphQLApollo helps engineering teams build unified graphs to accelerate development
ApptronikRobotics
AquariaCreating water from the air to safeguard access against climate change
Argu AIAI-powered debate and argumentation analysis
Armada AIThe full-stack platform for next-generation edge computing.
Array LabsProviding quality 3D imagery on a global scale
AstranisBuilding next-generation internet satellites to get the world online
Aurelius SystemsRobotics
Autopilot InvestLet the best invest for you
autostep.aiAutostep maps how work happens across a company, identifies repetitive tasks and bottlenecks, ranks them by cost and impact, and helps implement agents or process improvements.
B
BiofireBiofire: Building the future of firearms safety
Biostate AIGenerative AI to predict how each living being's health changes
BlueboardWorld’s leading experiential rewards & recognition platform
BlueCore EnergyEnergy storage and grid management solutions
Boom SupersonicMaking the World Dramatically More Accessible
Boost RoboticsPhysical agents for digital infrastructure
BrainbaseExitIP management and monetization for brands.
BrelliumBrellium automates your chart review with AI.
Buoyant AeroAir cargo delivery
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CadreValue-investing in middle-market commercial real estate for high returns.
CanvasExitThe diversity recruiting platform to hire diverse talent.
CapstackSecure marketplace for whole loan and participation trading.
CapsuleFree, same-day prescription delivery, all from your phone.
Cart.comUnified commerce and logistics for B2C and B2B businesses.
CaseMarkPrivacy-first AI summarization for legal workflows.
CellTypeSimulates drug response in human biology using LLMs.
Cerebras SystemsPublicWafer-scale AI processor for large language models
Chef RoboticsChef Robotics builds AI-enabled robots and ChefOS, its physical AI software, to automate meal assembly for food manufacturers handling varied ingredients and frequent changeovers.
CirclePublicConnecting the world's finance with public blockchains.
ClaraThe corporate spend platform for Latin America.
ClayClay is a data infrastructure and workflow platform that lets go-to-market teams combine data sources, run AI-assisted research, and automate growth workflows.
CobaltIntegration infrastructure for B2B SaaS companies.
ColossalBuilding radical software tools to advance the science of genomics.
CommsorYour community operating system
ComposerSophisticated quant trading, automated and code-free.
Copenhagen AtomicsCleantech
Core AutomationCore Automation is an AI research lab building systems that automate work, starting with its own research, and developing learning algorithms and architectures beyond transformers.
CytronicAI / ML
D
DaivinBuilds tankless dive gear for breath autonomy in extreme environments.
Dandelion ChocolateArtisanal chocolate maker with direct-trade sourcing
DeepinventAI-powered semiconductor design automation
Deployable EnergyDeployable Energy builds the Unity Nuclear Battery, a transportable 1 MW microreactor designed for factory production and rapid deployment to industrial, defense and remote sites.
DexterityDexterity develops a physical AI platform that gives industrial robots human-like dexterity for logistics work such as truck loading, running full production shifts at large carriers.
Dusty RoboticsDusty Robotics makes the FieldPrinter, a mobile robot that prints BIM-based construction layouts directly onto jobsite floors so trades can build to the digital model.
E
EderaEdera provides a hardened runtime to secure cloud infrastructure.
Efficient ComputerEnergy-efficient computing processors
Eight SleepDesigned to help you fall asleep faster and stay asleep
EndolithSubsurface imaging technology for geothermal and mining
ExosonicInactiveDeveloping supersonic UAVs as a pathway to quiet supersonic flight
ExowattThermal energy storage for grid and industrial use
ExtropicThermodynamic computing for AI inference
F
Featherless AIOpen-source AI model serving and inference platform
Fenrock AI (YC W26)Builds AI agents to automate financial crime compliance for banks.
FinFin provides API-based cross-border payments infrastructure that lets businesses collect and send funds through bank-transfer, local payment, and stablecoin rails.
FireflyFull-screen advertising on rideshare and taxis.
Firefly HealthConvenient, comprehensive, and affordable employer-sponsored health plans.
Firehawk AerospaceBuilds solid rocket motors and propellants using additive manufacturing.
FirestormBuilds modular unmanned aerial systems for defense.
Flux.aiAI-powered electronics design and circuit simulation
FlybyBuilding autonomous drones optimized for ML applications. Made in America
Formation LabsFormation Labs is an organization dedicated to discovering new pathways
FormulateFormulate is the factory of the future for chemistry-based products
FrontFront is an API service provider
FundboxShaping the future of small business lending
G
H
HarbingerFamiliar Form. Revolutionary Foundation
HausA better way to drink
Hebbia.AIAI Agents for serious work
HermeusBuilding the world's fastest aircraft.
HexThe AI analytics workspace for smarter team decisions.
HeydayRetain more of what you learn. Automatically
HiFi BridgeThe all-in-one crypto platform to lend, borrow, and trade.
HiggsfieldPersonalized AI video for the next generation of entertainment.
HologenMulti-modal foundation models for Neurology and Healthcare
Human InterestAffordable and easy retirement savings plans for every employee.
K
KabcashBNPL for Mexico
KalshiRegulated prediction market platform for event betting
Karman IndustriesBuilds advanced thermal systems for data centers.
KeyMe24/7 Locksmith Services, Key Copy Near You | KeyMe Locksmiths
Kin InsuranceConvenient and efficient insurance policies
Kled.aiKled provides premium, unbiased data to train AI models.
KoBold MetalsDiscovering the battery minerals critical for the electric vehicle revolution
Kodiak RoboticsPublicBuilding self-driving trucks for long-haul freight.
KonikuWe are building co-processors made of biological neurons.
Kraken Digital Asset ExchangeOne of the largest and most trusted digital asset platforms globally
L
LabtreeThe R&D operating system for biotech startups
Lamb Labs (YC S26)Lamb Labs is developing Model Processing Units, custom silicon that hardcodes AI-model weights on-chip to enable fast, power-efficient local inference.
LambdaGPU compute for deep learning, accelerating human progress.
Latus BioLatus Bio is developing curative AAV gene therapy products for CNS disorders
LawtradesTop legal talent, on demand.
LEX MarketsInactiveSoftware platform for fractional real estate property investment.
LightberryAI-powered computer vision for retail analytics
LightmatterThe Photonic (Super) Computer Company
Little OtterMental health care for your whole family
LocomationInactiveRe-Engineering the World's Supply Chain for Autonomy
Loops AIAI / ML
M
Machina LabsUnlocking Manufacturing through Robotics and Artificial Intelligence
Magic24/7 virtual assistant
ManufacturedSupply and Finance Inventory for Merchants
Marr LabsAI / ML
Mass MagneticsMass Magnetics produces high-performance permanent magnets in the United States from domestic and recycled rare-earth feedstocks.
Mate FertilityPioneering a transformative approach to the fertility care industry
MatternetPublicOn-Demand access to goods. Through the Air. Fully autonomously
Maverick BiometalsWe are automating directed evolution to create cost effective industrial enzymes
MENTEN AIAI and Quantum-Powered Protein Design
MercuryThe banking stack for startups*
MerokaSaaS platform for enterprise resource planning
MesodyneAdvanced materials for next-generation semiconductors
Micro1Micro1 is a data research lab that produces expert human data, real-world training environments, and contextual evaluations for training frontier AI models and assessing AI agents.
MinervaAI / ML
Minerva IntelligenceInstant, flawless AI accountant
MinicircleGene Therapy for Longevity, Performance & Wellness
Modus (YC 24)Headcount management to save costs as you scale. Hire and retain only the people you need
Monarch TractorExitLeading the digital transformation of farming
MUD\WTRCoffee alternative powered by mushrooms, cacao, and chai.
MultionYour personal AI agent
N
O
OdekoThe operating platform for small businesses
Odys AviationHybrid electric regional VTOL aircraft
One RobotRobotics
OpenBuilds a lab data harmonization platform for healthcare.
OrderfulAPI Powering the World’s Supply Chain
Origami RoboticsBuilds high-DOF robotic hands that replicate human dexterity.
OurosGeothermal energy development and exploration
Owner.comWe create software to help local business owners reach new customers
P
PalletAI workers for logistics
Parasail Inc.Autonomous aerial vehicle platform for enterprise
PassportExitModern International Shipping
Path RoboticsWe enable robots
PerchExitA global commerce company accelerating owned and acquired brands.
PermanentAligning economy & ecology
Perseus DefensePerseus Defense
Phoenix TailingsRare earth element extraction from mining tailings
PikaAn idea-to-video platform that brings your creativity to motion
PipeOffer embedded financial products inside the software businesses use every day
Piris LabsPiris Labs builds optical interconnects for fast, cost-effective AI inference.
PolarGridAI / ML
PolsiaAI / ML
PolymarketBet on your beliefs
Posh EnergyRobotics
PostmanThe API platform for building, testing, and using APIs faster.
Praxis RoboticsPraxis Robotics captures egocentric video, 3D scans, and other multimodal data from real-world work environments to provide training data for robotics and physical-AI systems.
PublicCommission-free stock trading platform
PykaDrones
R
Radiant NuclearSmall modular nuclear reactor technology
RallyBuy & Sell shares in alternative assets, just like stocks
ReachLong-range wireless power transfer
Reality DefenderDetect Synthetic Media With AI
ReleaseWorking capital for multifamily owners - without adding debt or equity dilution
Reliable RoboticsAutonomous aircraft systems for cargo delivery
RemoteRemote allows companies to employ anyone, anywhere
Replit, Inc.Developer Tools
RepublicRepublic Labs: The private investment arm of the Republic fundraising ecosystem.
Ressl AI (YC W26)Provides AI employees for service businesses to automate admin tasks.
Rosebud AIVibe code games. No coding skills required
Rove CardBusiness credit card with AI-powered expense management
Ruli AIAI Co-Pilot for legal intake, triage, and operations.
Runa HRExitInstant global B2C payments and payouts infrastructure.
Ryse MarketTurn rental income into instant revenue. Earn 2% commission on every rent advance.
S
Scale AIExitThe Data Engine that powers the most advanced AI models
SeezoScale threat modeling to help your developers ship features faster
SelfinPersonal finance platform for self-employed professionals
SendbirdEnterprise-grade AI for reliable, delightful customer service.
Shield AIAutonomy for the world.
SingularityProvides infrastructure, models, and systems for artificial intelligence.
Slingshot AIA modular platform for production machine learning
Snow DiamondsLab grown diamonds
Solarmente ESPInactiveInnovative solar panel kits: Click, order, install.
SpaceXPublicRevolutionizing space technology
SplineA friendly web-based collaborative 3d design tool
sprouts.aiWe are a plug & play all inclusive Account Based Marketing Platform
Standard BotsAffordable collaborative robots for manufacturing
StyleSeatStyleSeat is the go-to marketplace to discover and book beauty services
Sully.aiCreating superhuman doctors
SundayLawn Care Made Safe & Easy
SupermoveSoftware to supercharge transportation
SuperunitEnd-to-end accounting & inventory management for sellers of physical goods
Synapse SemiconductorSynapse Semiconductor is a semiconductor lab developing image sensors that process visual information and neural-network computation at the sensor.
T
Taiki (YC W24)Universal API for tax documents
TensordyneTensordyne, formerly Recogni, develops Napier, a full-stack AI inference system combining logarithmic-math chips, compute trays and a scale-up interconnect for data centers.
Terra AIAchieve certainty in the subsurface
TerrexCleantech
The Standard Electron CompanyCleantech
Thea EnergyGeothermal energy development platform
Theo AIPredict the outcome of your next case. Theo Ai uses predictive analytics to deliver clarity and confidence in every legal decision.
TLDCPost-training Data Research
Together.aiAI / ML
Tomato AIExitAI / ML
Travo AI (YC W26)AI-powered real estate data platform for niche commercial assets.
Trestle BiotherapeuticsBioengineered therapies for Kidney Disease
TrippTRIPP: AI Powered Mental Wellness
Trust & WillThe easy, fast, and secure way to set up your estate plan online
TuringLLM training. Unleashing the world's untapped human potential to accelerate AGI
U
V
ValurDemocratizing elite tax mitigation for a broader audience.
Varda Space IndustriesBuilding and manufacturing products in orbit.
VectorAI / ML
Veracity SelfcareWe create a personal selfcare experience build around real internal data
Visibl SemiAn applied AI lab automating semiconductor development.
VolantisHardware
Voxel EnergyCleantech
W
WarpPayroll and compliance for startups
WHOOPOptimize your sleep, strain, and recovery with an advanced wearable.
Wild EarthExitClean, science-based protein pet food for a healthier pet and planet.
Wild MicrobesHarnessing microbes to replace petroleum and animal products.
WonderschoolPlatform for starting in-home early education programs.
WorkstreamAutomated hiring platform for hourly workers
