Y Combinator Startups in New York 2025

We’re a passionate team of dreamers and builders, determined to liberate small businesses from the not-so-fun aspects of the job so that they can focus on what’s fun and important.

Scentbird inspires fragrance lovers to go beyond the ordinary and sample scents that evoke passion, confidence, and the unknown. Our mission is to revolutionize the way individuals perfume by bringing the ultimate fragrance playground right to their fingertips. By way of a monthly subscription service (starting at $14.95 a month), members can choose from over 500+ designer colognes and perfumes each month! See what we're all about at: www.Scentbird.com // @Scentbird *WE'RE HIRING!: https://www.scentbird.com/careers

SmartAsset is an online destination for consumer-focused financial information and advice. Reaching approximately 59 million people each month (as of January 2024) through its educational content and personalized calculators and tools, SmartAsset's mission is to help people make smart financial decisions. Additionally, SmartAsset powers SmartAsset AMP, a national marketplace connecting consumers to financial advisors. Building on SmartAsset’s relationship with millions of investors, SmartAsset AMP connects financial advisors directly with prospects who meet their target client profile. Our algorithm matches consumers with up to three fiduciary financial advisors. In 2023, SmartAsset helped advisors close an estimated $34 billion.

F2 is the AI platform for private markets investors. Purpose-built for private credit, private equity, and commercial banking, F2 accelerates diligence, underwriting, and portfolio monitoring, helping teams evaluate deals over 60% faster. F2 turns unstructured deal data into investment-grade analysis and polished memos in minutes. Unlike general-purpose AI, F2 is built with the domain expertise and depth to handle the most complex financial analysis. Already trusted across thousands of deals, F2 makes collaboration easy and retains historical context, so past work compounds into future wins. Headquartered in New York City, F2 is backed by leading investors including NFX, Left Lane Capital, and Y Combinator.

Scott AI is the agentic workspace where teams align on spec before any codegen runs. Teams already use multiple coding agents to build. Different coding agents will continue to evolve and have diverse strengths. An engineer will entrust a long-running agent to add dark-mode end-to-end while they pair carefully with an IDE-based agent to land a critical DB migration. These execution agents cannot be the decision layer because they are biased to their own tool, they are not neutral. Scott AI is the neutral, agent agnostic decision layer for the age of multi agent building. Teams will use Scott as their decision workspace to finally ditch google docs and notion as their primary spec alignment layer.

Overdrive Health offers AI powered medical billing services, helping providers get paid more money in less time. Our technology enables us to provide the best quality insurance and patient billing services for a fraction of the usual cost

Nori is a concierge-level AI health coach in your pocket. It takes all of your health data—Apple Health, medical records, wearables, everything—and boils it down into a personalized daily plan. Users love it: “It's truly one of the best apps and I check it first every day. Since using Nori, I've been limiting devices in bed and eating earlier—and I'll be damned if it's not working... I started getting more deep sleep, my resting HR dropped to 43, my recovery improved.”—Jen, Nori user"

Dome makes it easy to build on prediction markets like Polymarket and Kalshi. We provide the developer infrastructure to access, analyze, and build on prediction markets. With our unified API, developers can access live and historical data, including granular datasets not available natively, across multiple platforms at once. Dome makes it simple to trade, embed market data into products, and deploy strategies across multiple platforms through one interface.

Freeport is the DeFi brokerage for wealth-oriented investors who want safe yields, no fees, and differentiated investment options. Get exposure to curated onchain enterprises, pre-IPO companies, structured credit, and other alternative digital assets.

RowFlow replaces clunky web forms with natural conversations that run over text, slack, or wherever your users are. Our platform increases your form’s response rates while cutting your internal overhead in half. With RowFlow, you can take any existing form and instantly convert it into an AI-powered conversation. New flows launch in minutes and reach respondents over your preferred channel or embedded chat. We guide the exchange, follow up automatically, and return clean structured data without extra work from your team. Forms power billions of business interactions yearly. Whether it’s forms for client intake, registrations, compliance, feedback, or surveys, they all follow the same painful pattern: low conversion, messy data, and frustrated users. Teams have long tolerated forms only because there's been no scalable alternative for collecting structured information from people - until now. Our goal is for RowFlow to become the new default way for how organizations collect user data in an AI-first world.

Bezel helps fashion brands create virtual photo/video shoots with AI. Upload images of clothes, select the human you want to model it, and Bezel generates pictures and videos that rival a full studio production. Every detail of the clothing is rendered flawlessly. Try it for yourself.

Palace (palace.so) is an AI board observer that private market investors use to monitor+report on portfolio companies. We save investment teams 100's of hours every quarter on manual data entry and provide real-time analytics across their portfolio.

Our mission is to build self-improving AI agents. We're here to close the last mile reliability gap. Through calibrated llm judges and automatic evaluations, we help companies optimize their agents 10x faster than doing manual experimentation.

We are a full-service sell-side residential brokerage that lists and markets your properties. We also screen and schedule tenants showings with our AI agent for a third of the normal commission.

The Interface enables anyone to create, interact, and share on the fly — from TV shows to games to movies. Drawing on deep expertise in realtime compute and simulation, we combine multimodal AI with the best of 3D simulation and modelling techniques, to deliver real-time experiences that are alive, interactive, and emergent.

Prosper builds AI phone agents for healthcare providers. Our agents automate manual, time-intensive workflows like patient scheduling, balance reminders, claims status checks, benefit verification, and prior authorizations. We integrate with 80+ EHRs, go live in 3 weeks, and offer a no-code interface for customization. Today, Prosper handles thousands of daily calls for dozens of providers, reducing costs by 50% and tripling productivity. We’re building the AI-first operating system for healthcare to eliminate the $200B lost to administrative overhead every year.

Fleetline is building the first complete-context algorithmic load planner for mid to large-sized trucking fleets. Today’s dispatchers face an overwhelming task: balancing regulations, customer demands, live fleet data, and individual driver needs, all while coordinating across siloed tools and teams. Mistakes run rampant, and each mistake is thousands of dollars. Even the select fleets using algorithms that have fleet-wide context struggle: the outputs are rigid, hard to interpret, and are blind to real-world nuances like driver preferences and schedule exceptions. Fleetline solves this by combining advanced optimization with LLMs that can easily adapt algorithms to each fleet’s needs and capture driver-specific information. The result is smarter planning truly optimized for every fleet and its drivers.

Eden runs marketing for ecommerce brands. Our AI agents can autonomously schedule campaigns, run A/B tests, and personalize experiences across email, SMS, site display, and more, so brand founders get enterprise-level marketing without needing a team or agency. Alex and Jason have been best friends for 8+ years. They met at TJHSST, became nationally ranked debate partners, and later coworkers at Datadog. Alex led operations at an AI shopping startup, working directly with brands like TheRealReal, Poshmark, and Farfetch. Jason was at Reddit's mobile ad retargeting team and is a second-time founder, previously exiting an AI recruiting startup doing $50K MRR.

IronLedger provides AI agents for property accounting, starting with accounts payable. We eliminate more than $70K of accounting costs annually for over 35K multifamily units. Soon, we'll be providing end-to-end accounting services including automated billbacks, month-end close and bank reconciliation. https://www.ironledger.ai/

Albacore is building 6ft-long drone submarines to deter littoral conflict. Our first product, Ghostfin can be launched from land in minutes, and carry precision effects or conduct sensing missions up to 1,000 nautical miles. Our team consists of multiple serial entrepreneurs in defense and hardware who have worked alongside top DoD leadership on autonomous platforms.

Locata is an AI referral management platform for Primary Care. We deploy AI agents to automate every step of the referral process that back-office staff face daily, from submitting prior authorizations to broadcasting updates and following up with patients. This frees up staff to focus on patient care. Primary care back-offices are severely understaffed and overburdened by administrative work associated with referrals. Additionally, patients suffer navigating the complex referral process, which can have disastrous health effects if they don’t get the care they need. These factors point to a glaring gap in the system—where out of over 100 million specialist referrals issued annually in the US, only half are actually completed. Locata is tackling this problem head-on, saving administrative staff hours each week and ensuring that the referral process goes as smoothly as possible for patients and their providers. Alejandro and Josh met at Stanford where they graduated with BS degrees in Computer Science. Alejandro was a senior software engineer at Meta’s Reality Labs where he led development of several AI features for wearable products and prior to that conducted AI research at Stanford Medicine. Josh graduated with a masters in Computer Science, specializing in AI, before working as a software engineer at Google where he developed AI products that served over 1 billion users. Within two weeks of building our product, we signed a major regional health center and have saved them over 100 hours of work in our first month live.

GhostEye uses autonomous AI agents to test how attackers exploit human vulnerabilities to compromise organizations. Just as red teams simulate technical attacks against infrastructure, we simulate sophisticated social engineering campaigns and beyond against people. Our multi-agent platform validates complete attack paths from initial human compromise to data exfiltration, providing security teams with actionable intelligence about their true human attack surface exposure before attackers find it.

Alter is a zero-trust identity and access control platform purpose-built for AI agents. It wraps every tool call in strong authentication, fine-grained authorization, and real-time guardrails, so agents can move fast without breaking things. Each request is verified at the parameter level, authorized against granular policies, executed with least-privilege access, and fully audited in real time. Unsafe actions, whether it’s a rogue DROP TABLE or a payment above policy limits, are blocked before they touch production. Behind the scenes, Alter manages credentials, issuing ephemeral, scope-narrowed access for every interaction, then rotating or expiring it in seconds. The result: no long-lived secrets, no blind spots, and no surprises in audit. With Alter, teams can move fast on AI agent initiatives while staying fully compliant with SOC 2, HIPAA, GDPR, and internal security standards. A CISO-ready dashboard delivers real-time visibility, detailed audit logs, and compliance-ready controls, removing silos, eliminating excessive permissions, and providing complete oversight of every agent workflow.

Channel3 is building a database of every product on the internet. Google and OpenAI maintain vast product graphs, but keep that valuable data to themselves. Channel3 gives every developer access, opening a world of possibility for new shopping experiences across any vertical. For instance, developers could build AI fashion stylists or give their agents shopping capabilities. We don’t just collect product data; we actually understand it. With the latest image classification and reasoning models, we can match products across merchants—even when listings and images differ—recognize variants, and surface the perfect matches for every search. As we grow, we’ll capture unique insights into what users want, click, and buy. As AI models get smarter and cheaper, our flywheel accelerates: our catalog will improve, and it will be even easier for developers and vibe-coders to build on our infrastructure. To further incentivize building on Channel3, we provide built-in monetization; developers earn commissions on sales they drive. Alex discovered this need while building an AI tutor that could recommend products and earn affiliate revenue. When no solution existed, he persuaded his smartest friend from Duke and former co-founder George to leave Palantir and build Channel3 together.

CareSwift is a real-time AI assistant built directly into ambulance reporting systems, guiding medics as they document care and instantly flagging errors. Crews complete accurate, compliant reports in under three minutes, cutting documentation time by 80 percent and helping agencies avoid insurance claim denials. Ambulance crews lose valuable time completing reports after each call. Even minor mistakes cause insurance claims to be rejected.

Cleon is building an AI-native software implementation platform to speed up customer onboarding, beginning with a focus on ingesting complex Excel files with agentic AI. B2B SaaS companies have millions of dollars of contracted revenue sitting behind implementations. Cleon handles everything from the big picture (generating requirements and aligning stakeholders) to the details (data cleaning and schema mapping). The team consists of Alexandros (ex-athlete in rowing and engineer at a proptech startup), Rohan (engineer at a fintech startup with long implementations and at an SAP code migration startup), and Ric (banker at RBC and enterprise sales at Palantir).

Trapeze empowers doctors to answer patient calls 24/7 with our voice agents clones of their best call center reps and receptionists. In the past 3 months, we’ve onboarded 140+ doctors nationwide serving 1,000,000+ patients. We're building the AI-native Zocdoc to create the standard for how patients and providers find each other. Follow along on the BTS of our journey: https://www.tiktok.com/t/ZTjQyxEQx/

Teach robots new skills through natural language and run reliably in production in minutes. Mbodi combines generative AI and agent orchestration, turning everyday language and quick demos into precise, reliable robot actions for industrial automation.

sieve solves data cleaning for hedge funds and investment firms by letting them get clean data in four lines of code. Currently, their data pipelines have conditions that raise for human review, which literally send an email to engineers with data that needs to be reviewed. We provide an API that integrates directly into their existing pipeline - instead of raising for human review, they can send all the same information to our API and get clean, high-quality data back. By using our AI agents built specifically for financial data collection, along with expert-in-the-loop review, we provide our clients with clean, validated data at a scale and level of quality that wasn't achievable before.

Dolphin is a startup in a box. Dolphin is a web-app builder for aspiring startup founders to ship to their first customers in an hour. Dolphin builds startups in one pass. Dolphin can setup subscriptions, AI assistants, complicated database updates, integrations, messaging, and more. Teddy and I have spent thousands of hours building complicated web apps, and we’ve developed strong opinions on how to architect them. That’s why Dolphin is so powerful: rather than give an AI free rein, we constrain it to the Dolphin architecture. Constraints breed creativity. We designed the Dolphin architecture so that, when an AI works with it, its outputs are correct, secure, and scalable.

Kirana AI is building the first full-stack AI store manager. With 100 years of family experience owning and operating grocery stores, we are starting there to prove our impact. Our first product utilizes an on-premise GPU that monitors the store 24/7, scans for theft, looks for workplace health and safety issues, and optimizes customer service. With future POS/ordering data integrations, our manager will automate many of the day-to-day tasks of running a store, such as ordering, pricing, assortment, and delegating.

Cohesive is the agentic CRM for blue collar businesses like janitorial, pressure washing, landscaping, HVAC, and pest control businesses. Cohesive fully automates sales and marketing outreach to local businesses and property owners in the service area, helping local service businesses grow even while servicing clients in the field.

Acolite builds AI teammates that handle submissions, issuing COIs, and SOV mapping across any AMS. Like an extra teammate, you simply forward an email and Acolite handles the rest.

ParaQuery is a fully-managed GPU-accelerated Spark solution providing double the performance at half the cost compared to solutions like Databricks and BigQuery. It is fully Spark-compatible, cloud agnostic, and has seamless integrations everywhere, all without vendor lock-in. ParaQuery makes it trivial to run large SQL and Spark workloads efficiently and serverlessly, without any data migrations.

Weel is the next-generation all-in-one driver co-pilot that redefines your driving experience by turning your smartphone into a complete safety and navigation hub. Our free app offers a built-in dashcam with easy video sharing, a smart navigation system, and advanced AI features—such as augmented reality navigation and ADAS—that reduce your risk by up to 30%. Say goodbye to expensive dashcams and complex setups – with Weel, you get complete driving safety and guidance in one free smartphone app.

Tire Swing uses AI to power resident and applicant eligibility evaluations for affordable housing. Our software manages the resident certification and recertification process end-to-end for public and private properties supported by Project Based Rental Assistance, Low Income Housing Tax Credit, and Housing Vouchers. It serves as a drop-in replacement for third-party consultants and auditors, and helps compliance staff complete their work faster and more accurately.

Miyagi Labs is an AI-powered exam prep platform that helps students ace tests like the SAT and ACT through our AI tutor, personalized study plans, thousands of practice questions, and realistic practice exams. We’re building the platform we wish we had when studying for exams. No more running out of practice questions. Track your progress as your rating in different exam categories increases, and know exactly what you need to practice most. We envision a world where students anywhere can come to Miyagi to ace their exams and receive personalized, world-class AI tutoring designed to unlock their full potential.

Law enforcement is drowning in data. Closure helps search it to solve crime. - Hiring: UX, Engineering; - Expanding: Local, state, and federal law enforcement.

OpenIntake boosts law firm revenue by converting callers into clients 24/7.

G LNK is an AI-powered platform simplifying how healthcare companies connect with the relevant medical professionals. Our proprietary matching and ranking models instantly identify the most qualified experts, accelerating drug development and commercialization. Designed with compliance at its core, G LNK ensures every connection meets strict regulatory and ethical standards—empowering companies to innovate faster with confidence.

Trata is an AI-powered research desk for hedge funds. We use agents to interview hedge fund analysts, write investment research, and distribute this through a subscription.

The student information system (SIS) is the core system of record in every K-12 school. It tracks students, attendance, grades, schedules, staff, and more - kind of like the ERP for schools. Legacy SIS providers do just about that, and not much more. School districts layer dozens of tools on top of their SIS to fill in the gaps. Scout is an AI-powered student information system that automates school- and district-wide busywork, from day-to-day operations like attendance tracking to annual compliance reports. Our mission is to help school districts run like high-performing organizations, enabling them to provide high-quality, personalized instruction to every student.

Retrofit is reimagining the future of secondhand shopping. We are a new vintage marketplace that uses AI agents to curate and personalize in-demand, trending inventory. We analyze social media trends, sales data, and personal style to find the best vintage pieces that fit an individual’s unique taste, size, and budget.

Karsa is a stablecoin neobank for over 100M people in emerging markets. We enable people to buy dollar-denominated stablecoins, save money in US bank accounts, and spend anywhere with a Visa card.

Misprint is an all-in-one marketplace that solves the biggest pain point in the collectibles world: opaque pricing. Collectors, investors, and hobbyists currently rely on scattered data from auction houses, online forums, and reseller platforms, making it difficult to know the true value of their items. Misprint streamlines the process by combining accurate pricing analytics with a seamless buy/sell marketplace, making it easier than ever to understand and monetize collectible assets. Existing marketplaces lack robust, real-time analytics because accurate valuations require deep expertise in both the collectibles domain and advanced pricing algorithms. Misprint’s unique blend of insider trading card knowledge and machine learning allows us to fill this gap. Building these pricing models requires extensive data infrastructure, deep domain expertise, and cutting-edge ML. Recent surges in the trading card market show that collectors crave transparent valuations. The global collectibles market is worth tens of billions of dollars. Eva has experienced the scale of this industry firsthand, generating $500k ARR within three months of taking her Pokemon card-selling side hustle full-time. With additional segments like sports cards, comics, and emerging collectible categories, the growth runway is immense. Co-founders Eva and Jon have been best friends since Exeter, combining finance expertise, a passion for collectibles, and mathematical rigor. By merging Goldman Sachs-level financial analytics with top-tier mathematical talent, Misprint is uniquely positioned to become the go-to platform for fair, transparent pricing in the collectibles space.

Stewdio is a collaborative platform for creative teams to use all the latest image + video generation models in one place. Music video directors, ad agencies, and architects use Stewdio to create everything from rap videos for Quavo and Loco, advertising storyboards, to architectural renderings.

Vortexify AI is a platform for building fully operational AI workflows tailored to supply chain operations. Deploy specialized, task-specific AI bots in days — not weeks. Our platform streamlines the creation of AI bots that can analyze millions of data rows, manage complex, long-horizon processes, and collaborate seamlessly with humans in the loop. Each AI bot comes equipped with custom tools maintained through AI-powered code editors directly within the Vortexify platform. Development teams can instantly generate dashboards, data pipelines, machine learning models, and custom functions — all contextualized to business goals and data requirements. Bots can operate in Co-pilot or Agent (autonomous) mode. They can be scheduled or triggered by real-time alerts and are governed by robust, natural language-generated guardrail templates that ensure safety, compliance, and reliability.

BrowserBook makes it easy to reliably automate the web. It's a Jupyter-style IDE for browser automation that combines a live browser, executable code cells, and an AI coding assistant to generate Playwright scripts that are deterministic by default. Developers use BrowserBook to build, debug, and deploy robust web automations, powering AI agents, QA workflows, and data operations.