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AfterQuery is a research lab (backed by Y Combinator) investigating the boundaries and capabilities of artificial intelligence through novel datasets and experimentation. We believe that pushing the frontiers of AI requires both rigorous scientific inquiry and exceptional human data.
San Francisco, CA, USA1-50 employees
Aftercare helps you run surveys with AI-powered follow-up questions to dig into responses for deeper insights—it’s like having a skilled interviewer for every survey.
San Francisco, CA, USA1-50 employees
Afternoon.co empowers founders to make better business decisions with real time financial metrics. We pair managed AI bookkeeping and tax services, to reduce administrative burden on founders. Accountants struggle serving 4 million+ of ecommerce brands & startups in the US, because of complexity in sales tax, multiple sales channels and inventory management. We automate a large portion of bookkeeping by integrating with their sales and inventory systems, so founders can spend less time doing admin work.
New York, NY, USA1-50 employees
We’re modernizing construction, a $12T global industry run by siloed software built 20-40 years ago (on-prem, no APIs, no mobile access, etc.). Our core product is Agave Sync, which helps General and Trade Contractors keep financial data in sync between their field teams on jobsites and their accounting teams in a central back office.
San Francisco, CA, USA1-50 employees
Agency specializes in multi-party security and compliance scenarios; we are the Palantir of compliance. We serve the most innovative companies and their teams working on critical challenges and transformative technologies by helping them achieve standards like SOC2, ISO 27001, CMMC, NIST, HIPAA, and GDPR that meet the highest levels of scrutiny from third parties. Our patented platform, Verse, integrates with GRC software like Vanta, cloud infrastructure, and your endpoints to securely handle complex multi-layered configurations, such as remote contractor use, BYODs, and federated client-hosted application deployments. Our managed security and compliance team helps high-growth software companies meet rigorous standards as quickly as possible by doing it for them. Our ETDR program enables organizations to prevent threats directly targeting their employees' personal devices, data, and online accounts while respecting their privacy. We provide customized solutions to prevent insider threats, data loss prevention, and threat intelligence while safeguarding personal privacy.
New York, NY, USA
AgentHub helps you catch and fix errors in your AI agents - before your users ever see them. Simulate real-world scenarios in curated RL environments for your agents - trace, evaluate, and improve agent behavior at scale. Generate large annotated datasets and experiment with different prompts, models, and configurations - all in one place - with clear visualizations of what’s working (and what’s not). Built by a former tech lead from Apple’s Foundation Model Eval team and a product engineer from MIT with experience working on agents at startups, AgentHub makes it easy to integrate your use case and start improving your agents quickly. Our streamlined onboarding process lets you get your agent eval environment up and running fast—no heavy lifting on your end. Close the feedback loop and build better agents, faster - with confidence.
1-50 employees
AgentMail is the email inbox API for AI agents. It gives agents their own email inboxes, like Gmail does for humans.
San Francisco, CA, USA1-50 employees
Agentic Fabriq is the single control plane for data permissioning throughout your entire organization across your AI and employees. Through Fabriq, any employee can tap into AI/agents with exactly the data and tools they're cleared to use by an admin. Fabriq can be used internally with employees or externally for customers while handling the auth + integrations + permissions securely for you.
Sunnyvale, CA, USA1-50 employees
Agentic Labs is making software design and architecture less painful by building AI into the process. Today, developers have no shortage of tools for instantly creating chunks of code, but designing the systems that integrate this code is the hardest and most manual part of software engineering. Our first product is Glide, an AI-first editor purpose-built for writing technical design docs. It connects to your codebase and saves your engineering team time on triage, planning, and implementation of complex code changes.
New York, NY, USA1-50 employees
At Agentin AI, we build Agents that move data and take actions across enterprise systems, like Salesforce, NetSuite and SAP. These agents are difficult to build because each enterprise heavily customizes their systems but we solved that by training our Agents to learn and adapt from failures, applying reinforcement learning techniques we developed.
San Francisco, CA, USA1-50 employees
Agentive is an AI workspace for financial and technology audit firms that leverages context-aware AI agents to perform testing procedures from natural language instructions—just like an audit associate. By combining critical workflows such as audit planning, client document requests, and evidence testing into one seamless platform, Agentive streamlines audit processes, reduces inefficiencies, and frees teams to focus on high-impact areas. We're backed by Y Combinator, Foundation Capital, Dell Technologies Capital, Liquid 2 Ventures, Ritual Capital, UpHonest Capital, and other fantastic investors from the public accounting profession.
Provo, UT, USA1-50 employees
🚀 Enable strategic decision making using a fast, flexible, and intuitive org design and workforce planning platform. ⚡
Toronto, ON, Canada1-50 employees
Our mission is to secure access to every enterprise application. Aglide SSO lets security and IT teams connect non-standard and legacy apps - from banking portals to social media logins - directly to their existing identity provider (Okta, Entra, OneLogin, Ping, etc.), with no need for app-side integration. Once connected, these apps behave like any other IdP-managed service: policies like MFA, Conditional Access, RBAC, and audit logging just work, and end users access them through SSO only. Customers use Aglide to secure both individual apps (e.g., legacy banking portals, Discord, Squarespace) and sensitive shared accounts (e.g., AWS root, social media). Our agentic identity technology means Aglide works with any app out of the box - no integration catalog, no custom scripting. Today, customers from fintech decacorns to global media companies rely on Aglide’s zero-trust, end-to-end encrypted platform to complete their identity stack.
San Francisco, CA, USA1-50 employees
AgriPass develops AI-powered robotic weeding solutions, specifically the RHIC platform, to eliminate herbicide dependency and lower labor costs for farmers. The company targets small and mid-sized growers of high-value vegetable crops within the sustainable agriculture market. It operates by providing robotic tools that mimic human agronomic judgment to deliver chemical-free weed management at commercial scale.
RoboticsAI ApplicationInfrastructureSeed$1M-$10M
Verify your customers globally with a single platform. Get 800+ data points on each business and 100+ data points on each individual and onboard with confidence.
Santa Clara, CA, USA1-50 employees
AiSDR automates sales prospecting. Our software uses AI to automatically write and send sales emails, once a prospective customer engages – we then automatically correspond and book meetings with them. AiSDR's sales emails have an average response rate of 7.1%, which is already on par with the industry response rate from emails written by humans. We are aiming to replace over 600k SDRs, that cost US companies $48B a year.
San Francisco, CA, USA; Remote1-50 employees
We make the operating system to track, manage and improve production in factories with many workers. We automate what the best supervisors would do if they watched everything that’s happening inside your factory.
Mannheim, BW, Germany1-50 employees
Aidy is a mobile app that helps people live fuller lives with chronic health conditions, beginning with Inflammatory Bowel Disease (Crohn’s Disease and Ulcerative Colitis). Our app lets users easily log their symptoms, diet, and treatments, then uses clinical indices to track disease severity and trends over time. Aidy excels at identifying patterns between diet, treatment adherence, and symptoms, giving our users a much more comprehensive and up-to-date picture of their condition to supplement clinician care. Previously in our careers, both Max and Peter worked in health in different capacities. At the Rockefeller Foundation and the United States Senate, Max worked in public health policy and COVID-19 response, while Peter worked as an ML researcher for a number of biotech companies. After a lengthy “pivot hell” we decided to finally listen to a friend with IBD who insisted that there weren’t any decent apps to help people live with the disease. Pretty quickly, we discovered how LLMs and regular structured questionnaire responses could provide a level of patient empowerment not possible before for chronic diseases. From there, Aidy was (re)born!
San Francisco, CA, USA1-50 employees
AirCaps is bringing AI assistance to in-person conversations. Our AI-copilot provides live captions, translations, AI meeting notes and insights for in-person conversations in real-time. It's deployed as an app for lightweight AR glasses so you can see visual information overlaid onto your field of vision. You can think of it like a Zoom AI meeting assistant or Granola, but for in-person conversations, and with the ability to proactively help you in real-time, not just after the conversation. We’re building the capture and intelligence layer for the 216 billion daily conversations that happen face-to-face. We’ve already processed 16,500 hours of real-world conversations and counting. Today, AirCaps assists with 11% of our users’ in-person conversations. We did $93K in revenue in October and grew 6.5x from September while spending <$3K on marketing (and hit $70K in revenue in the first 2 weeks of November). Our power users average 6h+ daily usage and our day-30 retention is 91%. We previously went viral (75M+ views on TikTok, 150K+ followers) and have been featured by The New Yorker, WIRED, and Forbes. Madhav (CEO, Yale CS) has been building in audio and AR since age 13, starting with Google Glass apps and voice assistants for Raspberry Pis. He researched audio AI at the MIT Media Lab. Nirbhay (CTO, Cornell CS) built voice AI on smart glasses in high school and built conversational AI products as the first engineer at 2 YC startups.
San Francisco, CA, USA1-50 employees
AirMyne is building machines to capture & remove carbon dioxide from ambient atmospheric air so it can be utilized or sequestered downstream. Our team is based in Berkeley, CA.
Berkeley, CA, USA1-50 employees
Airgoods is building the future of food and beverage distribution. Today, we help emerging brands (think Fishwife, Ghia and David Protein) rapidly grow their wholesale business and earn placement into the nation’s best specialty and natural food stores.
New York, NY, USA1-50 employees
Airhart is making airplanes anyone can fly. Our semi-autonomous tech will enable 10x more people to fly their own planes and make flying to Tahoe as easy as driving to the grocery store
Long Beach, CA, USA1-50 employees
Airtrain AI is a no-code data platform for Large Language Models. Proprietary AI models such as GPT-4 are very powerful but also very costly, slow, unreliable, and unsecured. As businesses look to scale their AI prototypes into production-grade products, they struggle with large AI bills, slow APIs and large failure rates. On the other hand, smaller language models have been proven to be able to perform on-part with large ones with fine-tuned on high-quality datasets. Airtrain AI lets AI practitioners explore alternatives to proprietary models, build up training datasets, evaluate, fine-tune, and serve a large selection of open-source LLMs.
San Francisco, CA, USA1-50 employees
Open-source context retrieval for AI agents across apps and databases. It connects to productivity tools, databases, or document stores and transforms their contents into searchable knowledge bases for agents.
1-50 employees
Airwork is an on-demand labor marketplace for premium blue collar workers. You can get an Airworker the same way you get an Uber, except instead of a taxi, someone shows up at your work site to work for the day. Airwork fills 98% of shifts in 2 hours. We're currently live in 8 industries across Southern Ontario, Canada, and customers include Tesla, the Toronto Pearson Airport, and the CNE. We're funded by YCombinator, Expa, Village Global, and SHL Capital.
Toronto, ON, Canada1-50 employees
With Aklimate, enterprises provide their suppliers with carbon management tools for free, in exchange for their emissions data. You can imagine it as the company paying for a Watershed-lite for each of their suppliers.
London, England, United Kingdom1-50 employees
Alaan is an AI-powered finance platform for businesses in the Middle East. We help businesses instantly issue corporate cards for employees, control their spending, and automate workflows. Our mission is to simplify finance for businesses in the Middle East and help them prosper. We have grown rapidly and now work with over 2000 startups, mid-market, and enterprise customers across various industries, doing tens of millions of dollars in payment volume. We've been default alive since our launch in August 2022 (9x net revenue growth in 2023, 6x in 2024), and raised one of the largest Series A rounds in the history of the Middle East backed by Peak XV (formerly Sequoia India). Check out alaan.com/careers if you want to join us!
Dubai, Dubai, United Arab Emirates51-200 employees
Alai makes it easy and quick to create high quality presentations with AI. Our users bring in their context and get a great first draft with 4 options for each slide in minutes. Alai has a responsive canvas made up of high-level build blocks which makes it easy for both humans and AI to iterate together to get to a polished presentation.
1-50 employees
Alara aggregates product listings from numerous suppliers, shows real-time price comparisons, and lets dentists order from different vendors in a single cart. With Alara, dental offices are saving time and money when ordering supplies.
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.
Philadelphia, PA, USA1-50 employees
Albiware (Albi) is a B2B SaaS solution for the $100B+ insurance damage repair industry. Albi provides an all-in-one platform for damage repair contractors to manage all aspects of their business including: CRM, project management, field documentation, scheduling, BI, marketing automation, communication, HR management, and much more. Albi is built by contractors who felt the pain that lack of technology brought and set out on a mission to build a SaaS that all insurance damage repair contractors want. Albi helps their customers reduce claims friction between them and the insurance company by providing tools to seamlessly document the work that was performed at projects. Albi helps users sync their communication company-wide through email, text, and phone directly in the platform. Albi helps contractors get paid faster by streamlining the process of a project from first call to completion. Albi also helps their customers make better business decisions through their BI tool with customizable reporting.
Downers Grove, IL, USA1-50 employees
Aldara is a modern, efficient HOA manager. We achieve that by automating back-office and operations with our in-house technology, powered by AI.
Barcelona, CT, Spain1-50 employees
An AI companion that chats and plays with children inside games like Minecraft, helping them learn a new language while they play. Kids already spend hours each week in their favorite games, and now parents can turn that game time into learning time.
San Francisco, CA, USA1-50 employees
Tired of switching tabs to cursor every time you're building your iOS app in Xcode? Worry not! Alex is a sidebar app that works directly with Xcode, and has the same Cmd+L, Cmd+K, and Apply Code commands as Cursor. And, it's super fast. Check it out: https://alexcodes.app
San Francisco, CA, USA1-50 employees
At Alfie, we've built a rigorous virtual medical program based on the top research from Cleveland Clinic and Harvard that allows us to precisely determine which weight loss regimen and (as needed) medications will be most effective for our members in a multimodal approach. We're optimizing exercise/nutrition/medications in complex care pathways like no one else has before. Our program has been shown to be 2x more effective than standard prescription medication and 5x more effective than habit change alone. We've raised capital from Goodwater Capital, Nina Capital, Air Force Ventures, and Phoenix Club, and various super angels including the founder of OpenTrons (medical labs automation; have raised $240 mill). Also, we're a Y Combinator graduate.
New York, NY, USA1-50 employees
Alga Biosciences is a fast-moving startup focused on transforming the agricultural industry. Our mission is to make an immediate, dramatic impact on global methane emissions produced by enteric fermentation in partnership with the cattle industry. We believe in leveraging biology to tackle the world’s biggest problems.
Berkeley, CA, USA; San Francisco, CA, USA1-50 employees
AlgoTest is an algorithmic options trading platform for Indian retail traders. For the first time ever, day traders will be able to trade using the same technology as the top hedge funds and high-frequency trading firms of the world. The company is founded by Raghav Malik (Financial Engineering @ Columbia Univ), an HFT technologist and former options market-maker in the US; and Rajat Jaiswal (IIT Delhi CSE), who built their scalable algorithmic testing platform while still in college.
Delhi, DL, India1-50 employees
We are Alguna, building a modern platform that helps B2B companies price deals, send quotes, bill customers, and collect payments - all in one place. Our mission is to create the most efficient revenue engine for B2B SaaS. Today, many companies run these processes with spreadsheets and a patchwork of separate tools. That leads to slow approvals, manual work, mistakes, and missed revenue—especially as pricing gets more complex. Alguna replaces that mess by connecting the entire flow from **quote to cash**: what sales sells becomes what finance bills, automatically. We help teams automate invoicing, handle usage-based or custom pricing, and reduce back-and-forth between sales, finance, and engineering. The result: growth-stage startups and enterprises can close deals faster, bill accurately, and scale revenue operations without adding headcount or building internal systems.
San Francisco, CA, USA; Remote1-50 employees
Alice turns generic course materials into personalized learning and exam prep using AI. We’re Duolingo for exams, and more than 10k college students have already used Alice. Kim, the CEO, is a domain expert in education with more than 10+ years of university teaching experience. He is also technical by background. MRR is $20k, growing +10% week-over-week the last 8 weeks Alice's core market opportunity is +$10b, with the global education market being almost $10trillion. As AI starts to disrupt education, Alice will use in-built network effects and virality in its product to create a global winner. Go Alice. Thank you!
Copenhagen, Denmark1-50 employees
Alima is a supply chain tech company that simplifies how businesses procure fresh goods in Latin America. We help restaurants, CPG brands, and retailers plan their buying orders, ordering products, expense management, and logistics.
Mexico City, CDMX, Mexico1-50 employees
Our compounds disrupt the metabolic and inflammatory triggers in both cancer and quasi-cancerous cells in the tumor microenvironment. By impacting multiple cell types, we are enabling effective, lasting cancer treatments.
San Francisco, CA, USA1-50 employees
Alkali is building the co-pilot for chemical process design. Spot design errors earlier, get the right equipment sooner, and build chemical projects faster.
San Francisco, CA, USA1-50 employees
Prototypes that look exactly like your product. Capture your product from the browser instantly and build lifelike, interactive AI prototypes. Perfect for Product Managers, Founders, and Designers.
1-50 employees
Allus builds next-gen vision foundation models that bring real intelligence to manufacturing. Enabling factories to see, understand, and improve production in real time.
Atlanta, GA, USA1-50 employees
Almond is like One Medical but for women’s health: we make it easy to get great ObGyn care fast, both at our in-person offices and over telehealth. The problem with traditional ObGyn practices is that physician time is misused, so patients get slow care. We're rebuilding back-office tech that saves physicians time, and we're hiring a wider range of care providers roles, which let us deliver better outcomes to patients and reduce the amount of time it takes to get their issue resolved.
Los Angeles, CA, USA1-50 employees
Industrial grade 7 DoF robot arms designed and assembled (by robots) in California.
1-50 employees
Alphawatch AI generates investor-ready decks, CIMs, and board materials in minutes instead of days.
New York, NY, USA1-50 employees
Private-market investing still runs on Excel. Every year, trillions of dollars in venture, real estate, and private-equity capital are underwritten through manual spreadsheet work — copying data from PDFs, CIMs, and data rooms into brittle models that haven’t fundamentally changed in decades. Alt-X is building the AI infrastructure layer inside Excel for alternative assets. We ingest unstructured deal materials and automatically turn them into clean, auditable Excel models. Analysts can go from raw documents to a working underwriting model in minutes instead of rebuilding spreadsheets cell by cell. Alt-X extracts and maps key KPIs like ARR, growth, NOI, IRR, leverage, and cap rate directly into Excel, then generates institutional-grade models, sensitivities, and IC-ready outputs that remain fully editable and transparent. Teams using Alt-X reduce deal evaluation timelines by up to 70%, save 30–50 analyst hours per deal, and screen 4× more opportunities with the same headcount. By automating extraction, modeling, and error detection inside Excel, Alt-X turns underwriting from a manual bottleneck into a scalable workflow. Our first wedge is real estate and private equity, where Excel underwriting is slowest and most painful. We’re already piloting with family offices and private funds managing over $200M in assets. Alt-X is priced as a SaaS product starting at $30/month, with higher tiers for teams and advanced workflows. The opportunity is massive: over $1.4T in private-market deals are underwritten globally each year, with $25–30B spent on diligence and analytics — nearly all of it manual and Excel-based. Alt-X’s mission is to become the operating system for private-market investing inside Excel — the Bloomberg Terminal of the AI era.
San Francisco, CA, USA1-50 employees
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.
New York, NY, USA1-50 employees
Alterya helps financial institutions, fintechs, and crypto service providers prevent APP fraud by detecting scams targeting their users and exploiting their platform.
Tel Aviv-Yafo, Tel Aviv District, Israel1-50 employees