How to Find and Sell to Former YC Founders Building AI Agents (2026)
Find former Y Combinator founders now building AI agent companies with live web search that catches roles traditional databases miss. Updated for 2026.
Founder @ Origami
Quick Answer: The fastest way to find former Y Combinator founders now building AI agent companies is Origami. Describe your ICP—for example, “former YC founders who are now CEO or CTO at an AI agent startup with under 50 employees”—and its AI agent searches the live web, enriches contacts, and delivers a verified list with names, emails, and phone numbers. You skip building Clay workflows or wrestling with Apollo filters.
Think the YC alumni directory makes these founders easy to reach? Think again. Many of them have left the company they founded during YC, launched stealth-mode AI agent ventures that aren't listed in standard databases, or operate with outdated LinkedIn profiles. Static databases like Apollo and ZoomInfo struggle to keep up with these career moves. The real challenge isn't just knowing who they are—it's finding current, verified contact data for the exact role and company they're at today.
Why Is Prospecting Former YC Founders So Difficult?
A significant portion of former YC founders fly under the radar of traditional contact databases. When a founder exits their YC-funded company and starts something new—especially in the fast-moving AI agents space—the transition often happens without a public announcement. They may not update their LinkedIn immediately, and their new company might not have a Crunchbase profile yet. This creates a data gap that leaves sales teams copying and pasting from Sales Navigator into guess-your-email tools just to get a single contact record.
Try this in Origami
“Find Y Combinator alumni currently building AI agents and actively hiring for engineering roles.”
One SDR manager at a mid-market sales intelligence startup put it this way: “We use ZoomInfo but it limits imports to 25 people at a time per page—many aren't even relevant, so reps manually parse through dozens of pages for large organizations. And for anyone who's left their YC company and is building in stealth, they just don't exist in there.”
Static databases refresh on a schedule. They aren't designed to detect the moment a founder quietly spins up a new AI agent GitHub repo, forms an LLC, or gets mentioned on a podcast. That's where live web search makes the difference.
We tested this by describing a common ICP to Origami: “former YC founders who are now leading AI agent companies at the seed stage, with fewer than 20 employees, building autonomous sales or recruiting agents.” Within 15 minutes, we had 87 verified contacts—many of whom were absent from Apollo and ZoomInfo entirely. The AI agent had scraped recent TechCrunch articles, Crunchbase entries, LinkedIn profiles, and even personal websites to surface people who weren't showing up in any single database.
Which Tools Actually Find Former YC Founders in 2026?
Not all prospecting tools are built for this use case. Static databases work well for stable, enterprise-visible roles (VP of Sales at a Fortune 500 company). But former YC founders in the AI agents space are often at tiny, fluid startups. You need tools that search the live web or combine multiple data sources on the fly.
1. Origami – AI-Powered Live Web Prospecting
Origami is an AI-powered B2B lead generation platform—think of it as natural language Clay. You describe your ideal customer in plain English, and its AI agent handles the complex data orchestration that Clay requires manual workflow building for: searching the live web, chaining data sources, enriching contacts, and qualifying leads—all from a single prompt. The output is a targeted prospect list with verified contact data (names, emails, phone numbers, company details).
For selling to former YC founders, Origami's live web search is critical because it finds people based on the most current information available—not a snapshot from months ago. It adapts its research to the target: searching LinkedIn and company databases for enterprise prospects, Google Maps and license boards for local businesses, Shopify directories for e-commerce brands, and so on. For this ICP, it might scan YC alumni lists, TechCrunch articles, AngelList profiles, GitHub, and social media. The included outreach sequencer lets you immediately launch multi-step email + LinkedIn campaigns to the list.
Pricing: Free plan with 1,000 credits (no credit card required). Paid plans start at $29/month for 2,000 credits. The Pro plan at $129/month includes 9,000 credits and 5 concurrent queries.
2. Clay – Flexible Data Orchestration (If You Have Time)
Clay is powerful for building custom data enrichment workflows. You can connect to a huge library of data providers, scrape websites, and use AI to score leads. However, for finding former YC founders who've moved to new AI agent ventures, you'd need to build a multi-step waterfall: start with a source for YC alumni, enrich current companies via LinkedIn, find emails, then cross-check for AI agent signals. That's possible, but it requires technical know-how and time that many sales teams don't have.
Pricing: Free plan with 500 actions/month. Launch plan at $167/month with 15,000 actions. Growth at $446/month.
3. LinkedIn Sales Navigator – Relationship-Based Prospecting
Sales Navigator is excellent for browsing and searching by past company (Y Combinator) and current company keywords like “AI agent,” “autonomous agent,” etc. But it doesn't provide email addresses or phone numbers. You'll still need another tool to get that contact data. Many reps end up in a two-tool workflow: find on Sales Nav, then pull contact info elsewhere.
Pricing: Starting at $99/month per user.
4. Apollo – Contact Database with Filtering Limits
Apollo's database is large, but its reliance on static data means it often misses newly formed AI agent startups. You can filter by past company and current title, but the data freshness on founders who've recently moved is hit-or-miss. Some teams we've spoken with report having to manually verify every batch because outdated profiles lead to bounces.
Pricing: Free plan with 900 annual credits. Basic at $49/month (annual) gives 1,000 export credits/month.
5. ZoomInfo – Enterprise-Grade but Costly
ZoomInfo has thorough firmographic data for established companies, but early-stage AI agent startups rarely appear in its radar until they've raised a significant round or been covered by multiple news sources. Annual contracts start at ~$15,000/year, making it prohibitive for many sales teams targeting nascent verticals.
Pricing: Starting at ~$15,000/year (annual contracts only).
| Tool | Free Plan | Starting Price | Best For | Main Limitation |
|---|---|---|---|---|
| Origami | Yes (1,000 credits) | Free, then $29/mo | Live web search for hard-to-find ICPs, all-in-one with outreach | Newer in market; needs clear ICP prompt |
| Clay | Yes (500 actions) | $167/mo | Data orchestration across many sources | Requires building workflows; steep learning curve |
| LinkedIn Sales Nav | No | $99/mo/user | Browsing alumni networks and current company searches | No contact info; need separate tool |
| Apollo | Yes (900 credits/yr) | $49/mo (annual) | Low-cost database with broad coverage | Data stale for recently moved founders |
| ZoomInfo | No | ~$15,000/yr | Enterprise contacts with intent data | Very expensive; misses early-stage startups |
How Do You Build a List of Former YC Founders Now in AI Agents?
Start with a prompt that captures both the YC history and the current AI agent focus. A good prompt includes:
- Past company: “Y Combinator” or “YC W21” (use specific batch if known)
- Current role: “Founder, CEO, CTO, or head of AI”
- Current company keywords: “autonomous agent,” “AI agents,” “agentic workflow”
- Company size: fewer than 50 employees
- Location (optional): “Bay Area” or “remote-first”
If you're using Origami, that single sentence is enough—the AI agent will find matching companies and people. With tools like Clay or Apollo, you'd need to construct a multi-filter search and still might miss those without updated profiles.
A founder who sold his previous YC company and is now bootstrapping an agentic sales tool told us: “Most of the people that I'm looking at, they have like this guy has two connections on LinkedIn… They're not even posting their LinkedIn… LinkedIn is not where they live if that makes sense.” For these off-the-grid founders, live web search across articles, podcasts, and GitHub is often the only way to find them.
What's the Best Outreach Approach for This Audience?
Former YC founders are inundated with generic cold outreach. A pitch that sounds like a mass email will be ignored. Personalization that references their specific AI agent company, its tech stack, or a recent launch is essential. But crafting that for dozens of leads manually is slow and draining.
One of our users, a founder selling a dev tool to AI agent startups, described the pain: “I have a 29-page Claude prompt document that I use… but that's just the content part. We have no engine or mechanism to actually execute those emails so it's a crap load of copy and paste… drag the URL to Claude, get the four emails, then copy and paste that into Gmail and then I'm managing the sequences via Salesforce, which sucks.”
Tools like Origami's built-in sequencer solve this by generating multi-step email + LinkedIn sequences after the list is built. You can customize the AI's tone and include details like their company's recent fundraise or product launch. This keeps outreach personalized without the manual copy-paste hell.
Quick tip: Mention a recent podcast appearance or a specific feature of their AI agent. That shows you've done your homework beyond just their YC background. And keep your ask simple—they're busy building. A low-pressure invitation to chat about challenges selling into enterprises often works better than pushing a demo.
Putting It All Together
Prospecting former YC founders who've gone into AI agents requires a different toolkit than traditional B2B sales. Static databases aren't built to track the career moves of serial entrepreneurs, and manual research with separate tools eats into selling time. The most efficient approach we've seen is to combine a live-web-search list builder like Origami with a sequencer that handles both email and LinkedIn, so you go from prompt to personalized outreach in one workflow.
Try describing your exact ICP—former YC founder, now founder/CTO at an AI agent startup, seed stage—and run a search. The results will tell you very quickly whether your current data source is keeping up.