Jessica Livingston

Who they are

Jessica Livingston is Co-founder and Partner at Y Combinator — wrote 'Founders at Work' (2007) and co-hosts The Social Radars podcast with Carolynn Levy, interviewing founders of billion-dollar startups.

Person

Jessica Livingston co-founded Y Combinator in 2005 from scratch — the first batch-model seed accelerator, built before the model had a name. She studied English at Bucknell University, then worked editorial staff at Food & Wine, customer service, investor relations, and VP of Marketing at Adams Harkness and Fidelity Investments — a winding pre-tech path that made her an unusual co-founder for a venture firm. At YC she became its cultural conscience: Paul Graham's essay on her credits her with reading founders' character — spotting dishonesty and resilience — in ways that shaped who got in. She wrote 'Founders at Work: Stories of Startups' Early Days' in 2007, a book of interviews with successful founders that became required reading in startup circles. She launched the Female Founders Conference in 2013 to pull more women into founding. In March 2023 she launched The Social Radars podcast with YC partner Carolynn Levy, interviewing founders of billion-dollar companies; she also writes at foundersatwork.posthaven.com on early-stage company building, YC history, and founder culture. The through-line is a decades-long commitment to the human side of founding — who founders are, what their early days actually looked like, and how to tell a real story from a polished one.

Company

YC's Winter 2026 batch broke records with valuations hitting $100M before founders finished their slide decks, and the batch marks a landmark shift toward AI and hardware innovation — including a notable expansion into Southern California's defense, biotech, and enterprise software clusters. In 2026, Harshita Arora joined as General Partner and nine founders joined as Visiting Partners, the largest leadership expansion in recent memory. YC remains the most active fintech investor as of Q1 2026, participating in numerous large funding rounds; a notable alumni milestone was EquipmentShare (W15) going public in 2026. YC also partnered with nearly two dozen companies to offer students attending YC events over $25,000 in free credits for AI development tools. Portfolio companies raised $630 million in 2026, spanning AI, SaaS, fintech, healthcare, and developer tools.

Market

Y Combinator holds the position of the world's most prolific startup accelerator in 2025-2026, with alumni spanning virtually every major tech sector. Its closest named competitor in the accelerator space is AngelPad, which is highly exclusive and strong with B2B startups in emerging economies. The broader industry is being reshaped by AI-driven development, growing regulatory clarity in fintech and crypto, and geopolitical volatility — all of which YC is actively leaning into through its W26 batch composition and its status as the most active fintech investor in Q1 2026.

Network

Livingston's closest orbit runs through Paul Graham, her YC co-founder and husband, who wrote publicly about her role as the firm's 'social radar' for founder character. At YC she works alongside Carolynn Levy, her podcast co-host and long-time partner, and Garry Tan, who became CEO in January 2023. Sam Altman has publicly credited Livingston with transforming YC into a startup ecosystem.

Paul Graham· Co-founder, Y Combinator
Carolynn Levy· Partner, Y Combinator; co-host, The Social Radars
Garry Tan· CEO, Y Combinator (since January 2023)
Sam Altman· CEO, OpenAI; former YC president

How they likely show up

Multi-decade tenure as YC co-founder (2005–present) → thinks in institutional time horizons, not fund cycles or quarters.
Described publicly as YC's 'social radar' for reading founder character → likely pays close attention to how people present themselves, not just what they say.
Active public writer and podcaster (foundersatwork.posthaven.com, The Social Radars, YC blog) → comfortable being a public voice; probably responds well to engagement with specific things she's written or said.
Pre-tech career spanned editorial, customer service, investor relations, and marketing → brings a non-technical lens to founder evaluation; pattern recognition comes from people-reading, not product metrics.
Launched Female Founders Conference in 2013, a standalone initiative inside YC → shows willingness to build new things within an institution when she sees a gap.
Book of founder interviews (2007) and ongoing podcast both center founders' early, unglamorous days → values authenticity and specificity over polished narratives.

Conversation tips

→ Reference a specific episode of The Social Radars or a post from foundersatwork.posthaven.com — she'll know immediately whether you've actually engaged with her work.
→ Ask about early YC — the founding story, the first batches, what the model looked like before it had a name — it's clearly a deep well of stories she enjoys telling.
→ Don't lead with metrics or portfolio stats; she engages with the human story behind companies, not the cap table.
→ If you've read 'Founders at Work,' mention a specific founder interview that stuck with you — she spent years on those conversations and specificity lands.
→ Avoid presenting yourself as having a polished, too-clean narrative — her reputation is built on detecting inauthenticity in founders, and she's been doing it for two decades.

Toolbox

Openers

Open on The Social Radars launch in March 2023 — she and Carolynn Levy built a podcast specifically to interview founders of billion-dollar companies, which is a pointed continuation of the 'Founders at Work' project she started in 2007. It shows a consistent 20-year bet on the founder interview as the right format.
Reference the Paul Graham essay at paulgraham.com/jessica.html — it describes her as YC's 'social radar,' the person who could read whether a founder was being straight with them. That framing of her role is worth engaging with directly.
Mention the Female Founders Conference she launched in 2013 — it was a standalone initiative she built inside YC when she saw a gap, which is a different kind of institutional move than most accelerator partners make.

Discovery questions

The 'social radar' framing has followed you for years — how has your instinct for reading founders changed across 20 years and hundreds of batches?
The W26 batch is described as a landmark shift toward AI and hardware — does that change the kinds of founders you're looking for, or is the character filter the same regardless of the wave?
You've been telling founders' early stories since 2007 — first the book, now the podcast. What do you think gets lost when those early stories don't get told?

Avoid

Don't lead with YC's portfolio stats or headline valuations — her identity and public voice are built around the human texture of founding, not the numbers, and opening with metrics signals you've missed what she actually cares about.

Make it yours