Y Combinator And Partners LinkedIn Posts (322)
Linkedin posts from YCombinator and official partners of YC. Alumni not included. Not associated with YC in any ways
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List Tracked - YC official
Posted 10h ago
Eng
Rally Tax is the AI-powered tax advisory platform for anyone with a complex tax situation. They're replacing the old broken, reactive CPA model with a proactive, year-round subscription.
For individuals paying $50K+ in taxes, DIY is risky. And CPAs are slow and expensive, with a tech stack that's literally email and Excel. And yet, 57% of Americans still use them, because they have no other choice.
The industry hasn't changed since the 1950s. AI will disrupt this market, capturing 40% of it by ...more
List Tracked - YC official
Posted 11h ago
Eng
Why can’t marketing AI help marketers the way coding AI helps software engineers? Hightouch thinks it can.
They just launched Hightouch Agents, an AI platform purpose-built for marketers.
For many teams, launching a single campaign still takes hundreds of hours and dozens of steps. One Hightouch customer even mapped it out and found that it takes “349 steps to get a campaign from a marketer’s head into the world.”
Hightouch Agents fixes that. It combines full marketing context with pre-built ...more
List Tracked - YC official
Posted 12h ago
Eng
Parametric (YC F25) is a robotics company working with real customers to do work how they want it done.
Traditional automation is effective but is generally expensive and difficult to design around. Many modern robotics companies are focused on building humanoids, but miss that customers care only about function, not form. The extra complexity makes such robots harder to train and maintain.
Using low-cost hardware and RL techniques, Parametric is building robots designed with customers in mind ...more
List Tracked - YC official
Posted 13h ago
Eng
Sim.ai (YC X25) is building the visual, end-to-end agent builder — a platform where developers can design, test, and deploy real AI agents that work in production.
Founded by Emir Karabeg and Waleed Latif earlier this year, Sim grew from a small San Francisco apartment to a community of 60,000 developers and 18,000 GitHub stars, recently raising a $7M Series A.
In this interview with YC’s Aaron Epstein, Emir shares how they’re building the infrastructure for the agent era, and what it takes to ...more
List Tracked - YC official
Posted 14h ago
Trending
Eng
Kaigo Health (YC F25) is building an AI care workforce that looks after Grandma and Grandpa— helping healthcare providers keep patients healthy at home by automating the follow-ups, check-ins, and monitoring that often fall through the cracks.
After every hospital visit, care tends to break down. Follow-ups are manual, nurses are overloaded, and patients are left to manage recovery alone. Small issues go unnoticed until they become emergencies.
Kaigo’s AI care agents help providers stay connec ...more
List Tracked - YC official
Posted 15h ago
Trending
Eng
Inspector (YC F25) is the AI IDE for front-end that lets developers prompt, edit, and build side-by-side with what their users see.
Founders Quentin Romero Lauro and Michael Klikushin spent the past few years building tools and interfaces that sit between humans and computers — from HCI research at Carnegie Mellon to products at Character.AI and Oracle.
When they started building web-based games, they ran into the same pain every front-end engineer knows: endless tweaking, context-switching, ...more
List Tracked - YC official
Posted 16h ago
Trending
Eng
Prox (YC F25) builds digital workforces for third-party logistics companies.
Third-party logistics companies handle warehousing, fulfillment, and returns for e-commerce brands. There are 40,000+ 3PLs in the US, and they all scale the same way: hire more people for every operational bottleneck. Claims processing, invoice reconciliation, compliance paperwork- all manual. This keeps logistics margins stuck at 3-5% because headcount scales linearly with package volume.
Co-founders Gregory Makodze ...more
List Tracked - YC official
Posted 17h ago
Eng
LogosGuard (YC F25) is building the risk management software for enterprises adopting AI.
Drawing from their AI safety research at Stanford, Sukrut Oak and Abel John are building an all-in-one AI governance and assessment platform. Enterprises are racing to adopt AI, but often don't have the right controls in place or know how to verify vendors are compliant. LogosGuard turns AI policies into executable controls, stress-tests your AI products, and continuously monitors changes, giving enterpri ...more
List Tracked - YC official
Posted 18h ago
Eng
Proxis writes and sends your emails for you.
Proxis connects to your inbox, past email history, CRM, Slack, Notion, Drive, and help docs. It drafts replies using your context — and auto-sends when it’s confident.
Most email agents today write generic replies or require manual review for everything. They don’t understand your knowledge base, your workflows, or your voice. Proxis fixes that by grounding every draft in your actual context and mimicking how you write.
Teams use Proxis to handle o ...more
List Tracked - YC official
Posted 19h ago
Eng
Multifactor (YC F25) is building the future of zero-trust authentication, authorization, and auditing for AI agents.
The agentic era is here, but its foundation is dangerously insecure. A growing number of high-profile "AI agent gone rogue" security incidents make headlines each week. As enterprise adoption of agentic software has far outpaced the development of applicable cybersecurity solutions, CISOs have loudly voiced a growing need for verifiable, fine-grained security controls on complex ...more
List Tracked - YC official
Posted 20h ago
Trending
Eng
Relixir just raised $2M to build an inbound engine for AI search.
Founded by Sean Dorje and Dennis Zax, Relixir helps brands drive ChatGPT traffic into inbound pipelines that are 5x more likely to convert.
"GEO is about marketing your features to LLMs”. Relixir automates that by:
1) Optimizing landing pages for AI crawlers
2) Monitoring AI search presence
3) Generating content that gets cited by AI
4) Sequencing visitors from ChatGPT, Perplexity, etc.
Relixir is now used by 200+ B2B companie ...more
List Tracked - YC official
Posted 22h ago
Eng
Magic Patterns is one of the fastest-growing design tools in AI — helping product teams move from idea to interactive prototype in minutes.
The two-person founding team recently closed a $6M Series A led by Standard Capital, after hitting $1M ARR and growing profitably.
In this conversation with YC's Jared Friedman, co-founders Alexander Danilowicz and Teddy Ni share how they built a product people love, what they learned from dozens of pivots, and why “the customer is our religion.”
Tune in ...more
List Tracked - YC official
Posted 1d ago
Eng
Thesis (YC F25) is an applied research lab accelerating AI R&D.
What if every researcher, anywhere, could discover the next Transformer or invent the next AlphaFold? Thesis' mission is to make state-of-the-art AI discovery 10x faster and 10x cheaper.
The big labs are competing fiercely to be the first to achieve this. OpenAI’s Machine Learning Engineering benchmark tests how well AI systems can train ML models autonomously, a first step toward artificial superintelligence through automated AI ...more
List Tracked - YC official
Posted 1d ago
Eng
Groww goes public today — YC’s first company to list in India. 🇮🇳
From their earliest days in YC’s Winter 2018 batch, the Groww team has been quietly rewriting what it means to build a fintech company in India.
They started with a simple idea: make investing easy, transparent, and accessible to everyone. Today, tens of millions of people across India use Groww to invest confidently in stocks, mutual funds, and ETFs — a remarkable shift in how the next generation of Indians build wealth.
Few ...more
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List Tracked - YC official
Posted 1d ago
Eng
Waffer (YC F25) is building Lovable for animated videos.
Animations are often the best way to explain a concept, or tell a story. However, making them is an absolute nightmare. Your options are either days of keyframing and manual adjustments with 30 old pro tools, or rolling the dice with untameable AI generators.
Waffer fixes that. With Waffer, you don't just generate a video; you direct one, shot by shot, with complete creative control.
Founder Ragav Sachdeva (AI PhD from Oxford, prev. at ...more
List Tracked - YC official
Posted 1d ago
Eng
Miniswap is a marketplace for the $20B tabletop games industry, starting with Warhammer.
Generic marketplaces were never designed for tabletop gaming. A single Warhammer kit can be built into 10+ different models, each with different rules and value. This leads to vague, mislabeled listings that make it difficult for buyers to find what they want — and for sellers to move inventory.
Miniswap uses AI to add structure to this market. They’ve built a catalogue of 20,000+ Warhammer miniatures from ...more
List Tracked - YC official
Posted 1d ago
Eng
Allus AI (YC F25) is transforming Manufacturing with a Next-Gen Vision Foundation Model.
Their vision foundation model brings world-class visual intelligence to every factory. Traditional vision systems are slow, complex, and expensive. They often take months to deploy and millions to scale.
Allus changes that. Their model is trained on 1.5B+ industrial, robotics, and manufacturing data, so it understands machines, materials, and processes. Allus can be customized for new vision tasks in minut ...more
List Tracked - YC official
Posted 1d ago
Trending
Eng
Sanctum lets you ship features to simulated users before real ones.
Teams are shipping faster than ever before, but feedback still arrives too late. Manual QA, brittle automation, and slow A/B tests mean most teams learn what worked only after launch, when costly issues reach real users. The team at Sanctum thinks there is a better way.
Sanctum builds high-fidelity user models from your session recordings, enriched with synthetic data and real usage patterns. These agents explore your latest c ...more
List Tracked - YC official
Posted 1d ago
Trending
Eng
Chad IDE from Clad Labs (YC F25) is a modern, fun, productivity code editor for everyone.
AI coding creates a time span that isn't long enough to do something new, and it's not short enough to be entirely negligible. There is 1-5 minutes of wasted downtime between prompts, where developers are spending time off the IDE to fill the inference time gap (usually brain-rotting on their phones). This builds mental fatigue from context-switching, and people forget to come back to their code, resulting ...more
List Tracked - YC official
Posted 1d ago
Eng
Zephyr Fusion is building compact fusion power stations for orbit- enabling megawatts of power in space, not kilowatts.
Today, nearly all satellites and spacecraft are power-limited. Most operate on just a few kilowatts of solar energy— about the power of a household appliance. This fundamentally caps what is possible in orbit: large-scale computing, manufacturing, defense systems, and long-duration habitats all require orders of magnitude more power. The transition from exploration to real ind ...more
