Nov 16, 2025 09:10:13 AM

Companies


Showing 4501-4525 of 5661 companies
YC W22
Spinach AI logo

Spinach AI

Meetings Powered by AI

Spinach AI, backed by Y Combinator, Zoom and Atlassian, is the AI Meeting Assistant - helps run your meeting, summarizes the conversation and automates post-meeting work. Spinach integrates with your existing tools and supports 100 languages. According to Gartner, 80% of project management tasks will be run by AI by 2030, Spinach is making that a reality today.

YC S23
Spine AI logo

Spine AI

Unlimited visual workspace to collaborate with hundreds of AI models

Spine is the unlimited visual workspace where your ideas can branch, run in parallel, and stay in view. Instead of being trapped in a linear chat thread, you think in blocks, not threads—chat, deep research, images, memos, slides—each block holding its own context while sharing it across the canvas. Connect and orchestrate GPT-5, Claude, Gemini, Grok, Llama and hundreds more like instruments in a symphony, all without losing your train of thought. Chat is great for Q&A; it’s terrible for thinking. Spine fixes that by letting context flow visually between blocks so your flow state never breaks. Extend this thinking to structured workflows that you can set up across 1000+ apps. Reclaim your creative power. The age of prompt engineering is ending; the future of thinking is visual, collaborative, and unlimited—and it lives on Spine.

YC W19
Spiral Genetics logo

Spiral Genetics

Large Scale Genomic Data Mining Software

Spiral Genetics (YC W19) makes genomic data mining software to compare large populations of whole human genomes. Our customers are genetics testing companies, governments of countries, and pharma companies. We train our machine learning algorithms to enable large scale comparison of genomes to power novel discoveries, enabling new diagnostics and drugable targets.  

YC W15
Spire Health logo

Spire Health

Remote patient monitoring for lung disease patients.

We are a B2B medical device and data company passionate about providing remote monitoring solutions for the proactive care of chronic disease patients. Our core expertise and IP is in continuous respiratory sensing. Spire Remote Patient Monitoring is used by pulmonologists and patients throughout the United States. To date our sensors have been worn by more than 150,000 people.

YC W19
Spire Law logo

Spire Law

Tech enabled business and employment litigation law firm.

Spire Law represents businesses and business owners in litigation. Spire Tech Services supports the technology development and marketing for Spire Law. Spire Tech Services was part of the Winter 2019 batch.

YC W25
Splash Inc. logo

Splash Inc.

Autonomous patrol-boats for National Security

Splash is developing the next generation of autonomous surface vessels (ASVs) to provide National Security and defend critical assets such as oil rigs and shipping terminals. Our long-term vision is to make traditional naval vessels obsolete by creating a fleet of low-cost and versatile boats which will be able to dominate the seas. Our expertise in mass manufacturing, engineering and quickly scaling operations will make this vision a reality.

YC S07
S

Splashup

Splashup, formerly known as fauxto, is an online image editing service that provides some advanced tools and is unique for its incorporation of image editing layer effects. The site is still in beta, and so does not offer full editing capabilities yet.

YC W22
Splendor logo

Splendor

We make dealing with insurance less annoying.

Splendor's AI agent helps providers, EHRs, and billing companies automate benefits checks, prior auth, and more.

YC W21
Spline logo

Spline

Design and collaborate in multiple dimensions.

Easily create and publish 3D for multiple platforms. Build and iterate fast with production-ready results.

YC W15
S

Spoil

Spoil is gifting for the Snapchat generation.

Spoil fundamentally changes the way people interact with each other. Spoil brings people closer to on another through genuine gestures that are fueled by technology. With a tool that empowers its users to engage in positive human interaction, Spoil inspire them to give, and enhances how they receive. Using technology, Spoil predicts what makes someone happy and leverages on-demand logistics to make it happen. With Spoil you can make anyone happy as easily as calling an Uber. Spoil is all about the experience we provides to both the sender and the recipient. Focusing on how we want the recipient to feel, each step of the process leverages the right emotions and builds a story around the Spoil being received. This makes sending a Spoil a thoughtful gesture as opposed to just an exchange of items. Spoil help individuals and corporations acknowledge people around them through genuine gestures. It is the only medium accessible to everyone that builds simple, contagious and ubiquitous happiness. Because, we believe that everyone should be Spoiled.

YC S21
Spoken logo

Spoken

Never overpay online

Spoken is a website where users compare buying options for the exact same product across multiple stores. We help our users never overpay online. Dane is a two-time technical YC founder; he sold his previous company, Parklet, to Greenhouse where he was VP of Platform for 4.5 years. Geoff is a Stanford MBA grad and sold his previous company Cabrio Taxi.

YC W21
Spokn logo

Spokn

AI-powered video platform for Internal Comms and HR teams

Spokn makes it easy for People and Comms teams to make videos starring their own employees and leaders - no editing skills or special equipment necessary. In minutes, you can create videos that feel as engaging as TikTok, and share them anywhere: Slack/Teams, your LMS, intranet, careers page, or job offer emails. Companies like InterContinental Hotels, Coinbase, Twilio, Opendoor, Udemy, SiriusXM, Gong and more use Spokn to create engaging videos for their learning & development, internal comms, recognition, DEI and employer branding.

YC S24
Spongecake logo

Spongecake

Helping developers build computer use agents

Spongecake helps developers build computer use agents With spongecake, developers can build computer use agents for their own applications, automate workflows in desktop applications with poor APIs, and automate workflows in on prem environments

YC S13
S

SpoonRocket

Meals Delivered in 10 Minutes

SpoonRocket is a next-gen, ultra fast delivery platform that delivers high quality tasty meals to customers in 15 minutes or less. Currently backed by Y Combinator, Foundation Capital, General Catalyst, and various other angels and funds. Download the app or checkout the website at www.spoonrocket.com.

YC W22
Spot Health logo

Spot Health

At-home diagnostics as a service

Spot is building the infrastructure to support the future of at-home diagnostics. Our fully white-labeled platform helps brands offer lab-analyzed diagnostic tests using at-home collection kits. Companies simply order tests via our API, and we handle the rest—the collection kits, the logistics, physician authorization, and the lab integrations.

YC S14
SpotAngels logo

SpotAngels

Waze for parking

SpotAngels is Waze for parking. It helps drivers find free parking, protect themselves from parking tickets and get garage deals.

YC S25
Spotlight Realty logo

Spotlight Realty

AI powered brokerage reducing residential rental commissions in NYC…

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.

YC W25
Spott logo

Spott

AI-native ATS/CRM for recruiting firms

Spott is the first AI-native ATS/CRM for recruiting & staffing firms. We built Spott because existing recruitment platforms require extensive manual work, are clunky to use, rely on fragmented add-ons, and are not designed for AI adoption. Spott combines everything recruiting firms need, from a full ATS & CRM to AI agents across the entire workflow, into one AI-native solution. It enables recruiters to focus on what matters most and close more placements.

YC W19
Spring in Africa logo

Spring in Africa

Investing in innovation

Backing innovation, building financial technology. Focused on emerging markets and leveraging people finesse with capital.

YC S14
S

SpringWit

Brain health and awareness

YC W20
SprintAI logo

SprintAI

AI-led platform for inventory and fulfillment optimization

AI Platform that powers the brands & retailers of tomorrow. SprintAI helps the brands in better decision making & automating various processes in Inventory Management & Omnichannel Fulfilment.

YC W22
Sprites logo

Sprites

The AI marketing agent for entrepreneurs, agencies and growth teams

Sprites AI automates customer acquisition for entrepreneurs. Our AI agent handles managing SEO, running paid ad campaigns, content marketing, influencer outreach—tasks that normally require hiring multiple people or agencies. Entrepreneurs using our platform acquire customers much faster and scale their growth funnel without the overhead of building marketing teams or hiring expensive agencies. The result: SMBs and solo founders can now scale revenue like they have a full marketing department. We're arming entrepreneurs and small businesses globally with systematic customer acquisition run by AI- so they can focus on the important things that make their offering unique.

YC S21
Sproutfi logo

Sproutfi

Latin Americas' first investing social network. Learn. Share. Invest.

We're on a mission to make investing in the US markets accessible and fair to everyone in Latin America. Our social features make it seamless for investors to mingle, share investment ideas and learn from each other. We make it super easy to invest in thousands of US stocks & ETFs, with as little as a $1 USD, no account minimums, and no fees. Our team is composed of highly experienced builders hailing from Goldman Sachs, E*Trade Financial, Nubank, ING, Wise...

YC W21
SpruceID logo

SpruceID

SpruceID lets users control their data across the web.

SpruceID lets users control their data across the web. Instead of people signing into platforms, we imagine platforms should sign into people’s data vaults. We implement this pattern into digital wallet ecosystems for governments, enterprises, and blockchains. We believe that architectures that enable individual autonomy in the digital world are necessary for free societies and dynamic economies to thrive.

YC S24
Spur logo

Spur

Spur is your AI QA Engineer. Test your websites with natural language.

Never code up another test or hire an external QA team. We handle and automate all functional and E2E testing.