234
Companies
6
IPOs
46
$1B+ Companies
10
Acquisitions
53.0%
IRRiUpdated October 9, 2026
Investment Thesis
Read Sahin’s public perspective on founder conviction, long-term company building, and the technology themes represented across the portfolio.
Read the investment thesisBrowse Startups in my portfolio organized by market, category, sub-category, and current public status. Each profile links to the company’s official website where available.
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Building reliable, interpretable, and steerable AI systems

The Data Engine that powers the most advanced AI models

Building radical software tools to advance the science of genomics.

Regulated prediction market platform for event betting

Bet on your beliefs

Groq is a machine learning systems company

One of the largest and most trusted digital asset platforms globally

Autonomy for the world.

Optimize your sleep, strain, and recovery with an advanced wearable.

Humanoid robots for industrial and commercial applications

Replit makes an AI app builder and cloud coding platform that turns plain-language descriptions into working, deployed apps and websites.

Together AI runs a cloud platform for developers and enterprises to run, fine-tune and train open-source AI models on GPU clusters.

AI-powered workplace search. Across all your company's apps

Clay is a data infrastructure and workflow platform that lets go-to-market teams combine data sources, run AI-assisted research, and automate growth workflows.

GPU compute for deep learning, accelerating human progress.

The API platform for building, testing, and using APIs faster.

Personalized AI video for the next generation of entertainment.

Apptronik builds Apollo, a general-purpose humanoid robot that works next to people in manufacturing, warehouses and retail.

The banking stack for startups*

The Photonic (Super) Computer Company

Micro1 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.

Core Automation is an AI research lab building systems that automate work, starting with its own research, and developing learning algorithms and architectures beyond transformers.

Affordable and easy retirement savings plans for every employee.

Remote allows companies to employ anyone, anywhere

Discovering the battery minerals critical for the electric vehicle revolution

24/7 virtual assistant

Building next-generation internet satellites to get the world online

We create software to help local business owners reach new customers

The full-stack platform for next-generation edge computing.
LLM training. Unleashing the world's untapped human potential to accelerate AGI

Creating abundant and dependable clean energy to power humanity for generations

Full-screen advertising on rideshare and taxis.

Familiar Form. Revolutionary Foundation

Convenient and efficient insurance policies

Offer embedded financial products inside the software businesses use every day

Making the World Dramatically More Accessible

Small modular nuclear reactor technology

Front is an API service provider

All-in-one platform for business formation, compliance, and banking.

Dexterity 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.

Unified commerce and logistics for B2C and B2B businesses.

Building and manufacturing products in orbit.

Apollo helps engineering teams build unified graphs to accelerate development

Designed to help you fall asleep faster and stay asleep

Republic Labs: The private investment arm of the Republic fundraising ecosystem.

Robotic inspection systems for industrial infrastructure

Thermal energy storage for grid and industrial use

Tensordyne, formerly Recogni, develops Napier, a full-stack AI inference system combining logarithmic-math chips, compute trays and a scale-up interconnect for data centers.

Commission-free stock trading platform

Shaping the future of small business lending

The corporate spend platform for Latin America.

Retain more of what you learn. Automatically

Multi-modal foundation models for Neurology and Healthcare

A global commerce company accelerating owned and acquired brands.

Enterprise-grade AI for reliable, delightful customer service.

Affordable collaborative robots for manufacturing

Building the world's fastest aircraft.

Autonomous aircraft systems for cargo delivery

Value-investing in middle-market commercial real estate for high returns.

General Compute operates an AI inference cloud on purpose-built chips such as SambaNova and Cerebras, selling dedicated capacity and API access to developers and enterprises.

Nanotronics, now CubeFabs, builds modular, AI-run micro-factories that manufacture next-generation semiconductors, starting with gallium-oxide power chips for data centers and electric vehicles.

The self-directed IRA platform for all your alternatives

AI Agents for serious work

Copenhagen Atomics develops thorium-fueled molten salt reactors, designed for mass manufacturing, that supply affordable carbon-free power to utilities and energy producers.

The AI analytics workspace for smarter team decisions.

We enable robots

Energy-efficient computing processors

Builds modular unmanned aerial systems for defense.

Leading the digital transformation of farming

Builds solid rocket motors and propellants using additive manufacturing.

Nitrogen fixation technology for sustainable agriculture

StyleSeat is the go-to marketplace to discover and book beauty services

Automated hiring platform for hourly workers

An idea-to-video platform that brings your creativity to motion

Modern International Shipping

A modular platform for production machine learning

Your community operating system

Integration infrastructure for B2B SaaS companies.

Rare earth element extraction from mining tailings

Convenient, comprehensive, and affordable employer-sponsored health plans.

Unlocking Manufacturing through Robotics and Artificial Intelligence

We are building co-processors made of biological neurons.

Quaise Energy develops millimeter-wave drilling technology to reach superhot rock deep underground and build geothermal power plants that supply clean, always-on electricity.

The operating platform for small businesses

Polsia builds an autonomous AI system that plans, codes, markets and operates online businesses for founders.

Volantis builds photonic interconnect hardware that links AI chips to large, fast memory pools so data centers can serve very large models at low latency.

Lawn Care Made Safe & Easy

Pyka builds autonomous heavy-lift aircraft for agricultural spraying, cargo logistics and defense missions.

Builds advanced thermal systems for data centers.

On-Demand access to goods. Through the Air. Fully autonomously

Develops AI tools and hardware for the semiconductor industry.

API Powering the World’s Supply Chain

The easy, fast, and secure way to set up your estate plan online

Geothermal energy development platform

Biofire: Building the future of firearms safety

AI workers for logistics

Aurelius Systems builds autonomous, AI-guided laser defense systems that protect troops, bases and infrastructure from drone threats.

Brellium automates your chart review with AI.

Helping the construction industry cut through red-tape

Deployable Energy builds the Unity Nuclear Battery, a transportable 1 MW microreactor designed for factory production and rapid deployment to industrial, defense and remote sites.

Fin provides API-based cross-border payments infrastructure that lets businesses collect and send funds through bank-transfer, local payment, and stablecoin rails.

Autonomous aerial vehicle platform for enterprise

Long-range wireless power transfer

Creating superhuman doctors

Coffee alternative powered by mushrooms, cacao, and chai.

Kled provides premium, unbiased data to train AI models.

Platform for starting in-home early education programs.

Hybrid electric regional VTOL aircraft

Artisanal chocolate maker with direct-trade sourcing

Chef Robotics builds AI-enabled robots and ChefOS, its physical AI software, to automate meal assembly for food manufacturers handling varied ingredients and frequent changeovers.

Dusty 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.

Latus Bio is developing curative AAV gene therapy products for CNS disorders

Makes traditional American snacks with healthy, high-quality ingredients.

Generative AI to predict how each living being's health changes

Cytronic runs robotic ecommerce fulfillment warehouses as a service, storing, picking, packing and shipping orders for direct-to-consumer brands.

Open-source AI model serving and inference platform

Your personal AI agent

The Mind. Unlocked

The smartest Pick & Place robots

Turn rental income into instant revenue. Earn 2% commission on every rent advance.

Achieve certainty in the subsurface

The Standard Electron Company builds deployable, vertically integrated solar and battery systems that deliver on-site power to industrial facilities.

Detect Synthetic Media With AI

Anello is building advanced navigation sensor solutions for the autonomous world

We are automating directed evolution to create cost effective industrial enzymes

Aether uses AI and a robotic high-throughput lab to discover proteins for stronger materials, critical mineral processing and industrial manufacturing.

Let the best invest for you

Edera provides a hardened runtime to secure cloud infrastructure.

Top legal talent, on demand.

Builds a lab data harmonization platform for healthcare.

Payroll and compliance for startups

Piris Labs builds optical interconnects for fast, cost-effective AI inference.

Instant global B2C payments and payouts infrastructure.

Minerva builds an AI platform for consumer marketing teams that unifies customer data and uses AI agents to plan, run and measure campaigns.

Vibe code games. No coding skills required

Simulates drug response in human biology using LLMs.

AI-powered electronics design and circuit simulation

BNPL for Mexico

Mental health care for your whole family

Nox Metals builds automated factories that cut aluminum and stainless steel to size for job shops, OEMs and aerospace and defense manufacturers.

Praxis 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.

TRIPP: AI Powered Mental Wellness

A better way to drink

AI-powered computer vision for retail analytics

A friendly web-based collaborative 3d design tool

Lamb Labs is developing Model Processing Units, custom silicon that hardcodes AI-model weights on-chip to enable fast, power-efficient local inference.

Mass Magnetics produces high-performance permanent magnets in the United States from domestic and recycled rare-earth feedstocks.

Advanced materials for next-generation semiconductors

One Robot builds world-model simulations that let robotics teams train and evaluate manipulation policies with less time on physical robots.

Builds high-DOF robotic hands that replicate human dexterity.

Posh Energy develops data centers for AI compute at sites with existing electrical infrastructure, pairing them with battery storage and on-site power generation.

Personal finance platform for self-employed professionals

Lab grown diamonds
Synapse Semiconductor is a semiconductor lab developing image sensors that process visual information and neural-network computation at the sensor.

Providing quality 3D imagery on a global scale

The all-in-one crypto platform to lend, borrow, and trade.

Perseus Defense

Voxel Energy builds off-grid data centers powered by on-site solar and second-life EV batteries for AI compute customers facing grid delays.


Geothermal energy development and exploration

Business credit card with AI-powered expense management

Software to supercharge transportation

Universal API for tax documents

Clean, science-based protein pet food for a healthier pet and planet.

Secure marketplace for whole loan and participation trading.

Tomato AI built real-time accent-softening and noise-cancellation software for call center agents and was acquired by Sanas.

Creating water from the air to safeguard access against climate change

Subsurface imaging technology for geothermal and mining

SaaS platform for enterprise resource planning

We are a plug & play all inclusive Account Based Marketing Platform

Scale threat modeling to help your developers ship features faster

Agent Astra builds AI-driven software for logistics operators that brings structure to freight operations, helping teams move containers faster and track shipments reliably.

Builds tankless dive gear for breath autonomy in extreme environments.

Formation Labs is an organization dedicated to discovering new pathways


AI-powered real estate data platform for niche commercial assets.

Democratizing elite tax mitigation for a broader audience.

An applied AI lab automating semiconductor development.

Energy storage and grid management solutions

Sophisticated quant trading, automated and code-free.

AI Co-Pilot for legal intake, triage, and operations.

unspun builds OneWeave, an automated 3D weaving system that turns yarn directly into garments for apparel brands and manufacturers.

Autostep 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.

Builds AI agents to automate financial crime compliance for banks.

Loops AI builds AI agents for e-commerce brands that power product search, shopping assistance, product enrichment and virtual try-on.

Pioneering a transformative approach to the fertility care industry

Instant, flawless AI accountant
PolarGrid runs managed inference on dedicated NVIDIA GPUs near end users, giving AI teams one OpenAI-compatible endpoint for open or custom models.

Provides AI employees for service businesses to automate admin tasks.

Post-training Data Research

Your portal to intelligence

Physical agents for digital infrastructure

AI-powered debate and argumentation analysis

Building autonomous drones optimized for ML applications. Made in America

Supply and Finance Inventory for Merchants

Headcount management to save costs as you scale. Hire and retain only the people you need

Aligning economy & ecology

Working capital for multifamily owners - without adding debt or equity dilution

Innovative solar panel kits: Click, order, install.

Harnessing microbes to replace petroleum and animal products.

We create a personal selfcare experience build around real internal data

Formulate is the factory of the future for chemistry-based products

End-to-end accounting & inventory management for sellers of physical goods

Free, same-day prescription delivery, all from your phone.

AI-powered semiconductor design automation

AI and Quantum-Powered Protein Design

Gene Therapy for Longevity, Performance & Wellness

Vector builds a contact-level advertising platform that lets B2B marketers identify, target and measure the specific buyers behind their pipeline.

Air cargo delivery

Predict the outcome of your next case. Theo Ai uses predictive analytics to deliver clarity and confidence in every legal decision.

AI-powered portfolio management for individual investors.

Bioengineered therapies for Kidney Disease

Aerial robotics for inspection and surveying

Privacy-first AI summarization for legal workflows.

The R&D operating system for biotech startups

Buy & Sell shares in alternative assets, just like stocks

Terrex, now Milestone, runs a marketplace that connects developers and owners of solar, battery and other energy projects with lenders, buyers and investors.

Tech-enabled investment in real estate loan acquisition.

Apollo Atomics develops compact, factory-built pressurized water nuclear reactors to power data centers, industrial sites and utilities.

World’s leading experiential rewards & recognition platform

IP management and monetization for brands.

The diversity recruiting platform to hire diverse talent.

Wafer-scale AI processor for large language models

Connecting the world's finance with public blockchains.

Developing supersonic UAVs as a pathway to quiet supersonic flight

Thermodynamic computing for AI inference

Financial services to improve the lives of renters and property managers.

24/7 Locksmith Services, Key Copy Near You | KeyMe Locksmiths

Building self-driving trucks for long-haul freight.

Software platform for fractional real estate property investment.

Re-Engineering the World's Supply Chain for Autonomy

Provides infrastructure, models, and systems for artificial intelligence.

Revolutionizing space technology

Sustainably securing the future of American finance
Directory
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Informational notice
This site is an informational company directory and research reference. It is not financial, investment, legal, or tax advice; it is not an offer, solicitation, recommendation, or endorsement. Investments involve risk, including possible loss of principal.
As of October 2026, Sahin Boydas’s public angel portfolio lists 234 companies (213 active, 6 public, 10 acquired, 5 closed) across 14 categories and 69 sub-categories. 215 companies have source-backed directories of investors. Lenny's Newsletter named him #1 most active angel investor in the U.S. in 2024. Founders: send your deck.