Nov 14, 2025 07:08:41 AM

Companies


Showing 5126-5150 of 5661 companies
YC W21
Vapi logo

Vapi

Voice AI for developers.

YC S11
V

Vapor

In-video advertising.

Creating modular server side software with Swift.

YC W23
Variance logo

Variance

World-Class Tooling for Trust & Safety teams

Build safer platforms with Intrinsic. Get access to the best safety technologies from one unified API. Enable your Trust & Safety team to tell cohesive stories from policy to product, to enforcement. Michael and Karine first met two years ago at Apple’s Fraud Engineering, Algorithmic Risk team, which evolved to become Apple’s Trust & Safety function. We are both engineers and helped solve online abuse problems, including spam, botting, account security, and developer fraud for Apple’s customer base of over a billion users.

a16z SR005
Variant logo

Variant

Variant is the Social Platform for Playable Content that tells stories the internet hasn't seen before.

Our proprietary AI models and design systems transform memes, jokes, fanfics, or even office drama into shareable interactive games. Variant is to interactive media what Facebook is for text, what Reddit is for GIFS, and what Tiktok is for videos.

YC S21
Varos logo

Varos

AI-based market research, competitive intelligence and benchmarks.

Varos is an AI Market Research firm, providing competitive intelligence, benchmarks and market research. We sell to both Marketing Executives and Tech Executives. For Tech Executives: Cutting through the AI chaos, we deliver clear, actionable insights & market research that drive real ROI for enterprise tech leaders. Our proprietary approach—blending expert interviews, robust data analysis, and deep vendor insights—cuts through the noise and delivers the customized guidance you need to make faster, smarter AI decisions. Backed by top-tier venture capital and steered by a team of former enterprise CIOs, Varos Research transforms market intelligence into tangible success. For Marketing Executives: We have built the largest first-party data co-op in digital marketing, offering highly granular and real-time benchmarks & market trends in a give-to-get model. Get an instant McKinsey-level audit of your account, benchmarked against 7,000+ companies, including many similar to yours for your Meta/Google Ads.

YC X25
Vassar Robotics logo

Vassar Robotics

Open-source semi-humanoid dev kit → home data → autonomy → 20h/wk

We build home humanoids the practical way—an open, mass-produced developer kit powering a real-home teleop data flywheel to autonomy, giving families back 20 hours/week.

YC S12
V

Vastrm

Mass customized active apparel. We are building a full turn key…

Vastrm Fashion™ (pronounced vas' trum) Vastrm was started to solve a basic problem: Shirts that don’t fit well! Mass produced shirts were meant to accommodate a wide variety of body types with one standard size, and different brands have different sizing standards, making shopping difficult--many men must shop in 4 - 5 different stores before finding a shirt that actually fits! By providing a home try on program and giving the ability to make custom fit adjustments to all of their apparel, Vastrm allows its customers to finally hone in on and find the perfect fit for their unique body types. Tang came up with the idea for Vastrm, which is a Sanskrit word for cloth, when a customer told him he had purchased a perfect shirt in Italy and has never been able to find the same fit again. He was considering flying back to Italy to track the shirt maker down, but Jonathan managed to adjust Vastrm shirts to the same fit.

YC W18
Vathys logo

Vathys

Accelerating machine learning through software

Previously: Building machine learning hardware 10X faster than ASICs. After Pivot: Accelerating deep learning through software YC Winter 2018.

YC S23
VaultPay logo

VaultPay

Digital banking platform for the 30 million smartphone users in DRC.

Vaultpay is building a digital banking platform for 30 million smartphone users in DRC and the country's largest agent network. For example, a young Congolese entrepreneur who just won a subcontract with a major mining company can now easily open a personal and business account, receive payments, all from their smartphone, instead of spending hours at bank branches.

YC S12
Vayable logo

Vayable

We're building a marketplace for unique travel experiences (it's…

Vayable makes it easy to discover and book unique experiences and activities worldwide offered by independent companies and local experts. What do you want to do when you get there? Let us know! it's easy to list and discover new trips! Just go to http://vayable.com.

YC W13
VaycayHero logo

VaycayHero

VaycayHero is a marketplace of professionally managed vacation…

VaycayHero takes the hassle out of booking vacation rentals. All rentals are verified, and 100% accurate, and calendars and pricing are automatically updated. This means, no surprises, ever. Search and book online hassle-free, or chat with a booking concierge if you need help. VaycayHero has vacation rentals in major vacation destinations in the US and Mexico. It built a travel hub platform to distribute the rentals to multiple channels including Vaycayhero.com and powered many marketplaces to provide a hassle-free booking experience.

YC W22
Vecindario logo

Vecindario

We make it easier for real estate to sell properties and mortgages.

We make it easy for real estate developers in LATAM to sell new properties and close mortgages, unifying the experience, so home buyers can buy a home in just a few steps and without the need to look for more intermediaries. We do it all online: selling homes and approving mortgages is 6x faster.

YC W23
Vector logo

Vector

Find your prospects who are most likely to buy.

The world’s first and only intent platform based entirely at the contact level. Know exactly which contacts are in-market on and off your site.

YC S23
VectorShift logo

VectorShift

No-Code Generative AI Automations Platform

VectorShift is an AI automations platform. Teams leverage AI through VectorShift’s no-code or SDK interfaces to search through knowledge bases, generate documents, and deploy chatbots and assistants. The no-code platform gives end-users an interface to access pre-built workflows for end use cases (e.g., responding to RFPs, writing proposals, writing account plans) while letting them customize and build new ones with drag and drop components.

YC W19
Vectordash logo

Vectordash

Play high-end PC games on your laptop by streaming them.

YC S20
Vectrix logo

Vectrix

Scan your SaaS apps and instantly identify security issues

As organizations around the world continue to rapidly adopt SaaS applications as the way they run their businesses, many are left without a way to manage the security of those same applications. Corporate IT and security teams are left asking questions like: - How will I know if someone shares a sensitive Google Doc publicly? - What if one of our employees doesn't have two-factor authentication enabled in Zoom? - Will I know when a new user is added to Slack? - What happens if our Salesforce minimum password setting isn't strong enough? With Vectrix's easy-to-use SaaS security scanning, organizations everywhere can quickly identify security issues and risks like these across their entire suite of SaaS apps, including Google Workspace, Microsoft 365, Slack, Zoom, GitHub, and more. When new issues arise, IT and security teams can be alerted in real-time so that further action can be taken right away. Founded by former security professionals from Autodesk, Vimeo, and PlanGrid, Vectrix is committed to providing teams of all sizes an efficient and reliable way to stay secure in the public cloud. Get started at https://www.vectrix.io

YC S21
VedaBio logo

VedaBio

CRISPR powered Diagnostics with results in minutes.

Syndromic testing powered by engineered CRISPR enzymes. Get comprehensive results in every doctor visit. More at www.vedabio.com

YC W21
Veera Health logo

Veera Health

We treat women with Polycystic Ovary Syndrome in India

Veera Health is helping 110M women in India get treated for Polycystic Ovary Syndrome (PCOS). Our app combines evidence-backed therapy with coaching & specialist support for a subscription fee. PCOS is the most common cause of infertility in women, and can lead to diabetes, depression and cancer. Patients spend up to 10 years and thousands of rupees searching for the right treatment, yet 90% are dissatisfied with existing options. With our program, 85% patients report feeling "in control" of their PCOS after just 1 month and are 4-times more likely to complete treatment. The founders, Shobhita (COO) and Shashwata (CEO) got an inside view into this massive need when the former was diagnosed with PCOS. Shashwata studied data science at Yale University, holds an MBA from Wharton, and helped grow Fortune 100 and growth-stage consumer health / product companies at McKinsey. Shobhita studied Biology & Psychology at Tufts University and has worked with leading healthcare companies, such as GlaxoSmithKline, Accenture Life Sciences & UnitedHealth.

a16z SR005
Vega logo

Vega

Vega: AI-powered social orbits

Vega: AI-Powered Social Orbits On Vega, you leave notes about friends to unlock notes about yourself. Our models analyze these notes to generate AI-powered social orbits, hyper-curated groups of people who will change your life, surfaced with perfect context like mutuals, trust, and shared experiences. We’re building the largest textual data moat on human relationships by gamifying the way people leave notes for each other. For the first time, LLMs can analyze millions of raw, human-written notes at scale and turn them into structured & meaningful insights about our relationships. Magic is other people. Orbit the people who matter!

YC W24
Veles logo

Veles

The Sales Calculator

Veles – The Sales Calculator. Veles empowers sales reps to deliver pricing effectively and craft dynamic options that maximize deal size. By integrating seamlessly with CPQs And CRMs, Veles makes every sales rep a top performer. Key Features: ✅ SaaS Pricing Calculator: Easily standardize pricing and track sales rep behavior in one intuitive platform. ✅ Standard Deal Definition: Define sales strategies and terms to expedite onboarding and maintain negotiation consistency. ✅ Performance Analytics: Gain insights into sales rep behaviors that lead to closed-won deals through comprehensive deal scoring. ✅ Alignment & Optimization: Foster team alignment by sharing negotiations and strategies for successful negotiation calls.

YC W23
Vellum logo

Vellum

The AI Product Development Platform

Prompting: Systematically iterate on prompts - Unified prompt management dashboard - Side-by-side model comparisons - Native support for tools, structured outputs, OpenAPI specs Workflows: The IDE for building steerable, agent-like systems. - Visual graph builder for orchestrating complex AI systems - Support for any model, custom code, and map/reduce functions - Built-in features like loops, parallelism, error handling Workflows SDK: A full-stack SDK + GUI for building AI apps with precision and flexibility. - Bi-directional sync between code and UI - Fine-grained control flow and global state management - Customizable with Docker and streaming support Evaluations: Test-driven development for AI. - Build scalable test suites via UI/API/CSV - Use pre-built or custom metrics for evaluation - Track quality, cost, latency, and regressions over time Retrieval: Powerful RAG infrastructure without the complexity. - Simple APIs for uploading and querying unstructured data - Tweak chunking, embeddings, and search for advanced use-cases - Supports various file types including tables and images Deployments: Update AI systems without redeploying your app. - One-click deploy across any model or provider - Staging environments for safe iteration - Scalable inference endpoints for production use Observability: Full visibility into AI system performance. - Audit logs, debugging tools, and feedback capture - Evaluation loops on live traffic - Dashboards to track cost, latency, errors, and trends

YC S22
Velontra logo

Velontra

Hypersonic space plane that can take-off from any location and weather

Velontra is building a hypersonic space plane that can takeoff from anywhere in any weather. This horizontal takeoff increases launch reliability and enables customers to directly access any orbit. Our air-breathing propulsion system is up to 6 times more fuel efficient than any rocket, and uses oxygen from the air which creates thousands of pounds of additional payload capacity. We have millions in current government/commercial contracts and LOI’s. We have assembled a team of industry experts, government senior executives, and a NASA astronaut. The hypersonic space plane will work by taking off from any runway with a jet propulsion system. Next, it will climb to over 100,000’ and Mach 5. At this point, it will launch a 2nd stage rocket directly into the desired Low Earth Orbit. Velontra is “boldly going where no one has gone before.”

YC W24
Velorum Therapeutics logo

Velorum Therapeutics

Breakthrough medicines unlocking the biology of heme

Velorum Therapeutics is developing breakthrough medicines by unlocking the biology of heme.

YC W23
Velos logo

Velos

Platform to automate manual back-office work

Velos helps non-technical operations teams automate complex, manual back-office tasks with AI workers instead of overseas teams. Unlike traditional robotic process automation (RPA) platforms like UiPath, Velos automations use machine learning to reliably handle ambiguities in their tasks, eliminating the need for an army of maintenance engineers and consultants to build and maintain your automations. We're automating the repetitive work people hate to do.

YC W22
Velt logo

Velt

Add powerful collaboration features to your product ridiculously fast.

Our mission is to make the web more collaborative. We're not just making collaboration faster—we're crafting it to be the best. Today we’re all using online platforms more than ever before - building, researching, learning, connecting etc. And we're not doing it alone. We're doing it together with other people and machines, turning the internet into the world's biggest team. Yet, the web was built for solo voyages. We saw a shift when platforms like Figma and Google Docs brought a multiplayer approach, breaking down walls and inspiring seamless teamwork. At Velt, we're taking it further. We're on a mission to infuse the magic of collaboration into the fabric of the web—one app at a time. We aim to erase the lines between online and offline co-working, crafting an environment where distance is irrelevant, and 'flow' is the norm. Right now, more than half of work hours are spent on coordination and communication—less on creating. With Velt, we're setting out to reverse these figures, reducing time spent on logistical issues by over 90%. Imagine what we can create when we spend less time talking about work and more time doing it! We're building a better web—a web for us, for our team, for everyone. Join us, and let's accelerate the future of web together 🚀 Our Products: - Velt Collaboration SDK (https://velt.dev/): JS SDK to add powerful collaboration experiences to your own product for your end-users. This helps you ship such experiences ridiculously fast, increase user growth and engagement. - Superflow (https://usesuperflow.com/): JS plugin to enable product, marketing and design teams to comment and collaborate directly on their websites. This helps them iterate and ship their products 10x faster. We’re a team of ex-Googlers. We've launched products like Augmented Reality in Google Search & Maps. Come build a better web with us 🚀