Solo Founders

Paul Bakaus created jQuery UI, sold a startup to Zynga, and spent nearly a decade at Google — then went solo to prove one experienced builder, amplified by AI, can do what used to take a team. His company Renaissance Geek is backed by a16z; its first product, Impeccable, stops AI coding agents from shipping design slop.

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Everyone thinks going solo means answering to no one. Six solo founders behind WorkOS, Fondo, Plug, Lighthouse, Hamlet, and Julius AI say the opposite: you have more bosses, not fewer, and the job is convincing all of them. Julian revisits the six moments that deserved more attention the first time around.

Topics covered:
- Why going solo means more convincing, not less (Rahul Sonwalkar, Julius AI)
- The original-insight test: "if you don't have one, don't start" (Sunil Rajaraman, Hamlet)
- The "wrong" business model behind a 16-to-429 hockey stick (Jimmy Douglas, Plug)
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Claire Vo runs ChatPRD — an AI "Chief Product Officer" for over 100k product managers — as the only full-time human, bootstrapped, with zero venture capital. The twist: she operates the company with a staff of nine named AI agents she manages like real employees, one of whom emailed the studio before she arrived to coordinate arrival time. She and Julian dig into how she built it, why she runs nine scoped agents instead of one, and the honest case for and against going completely solo.

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Today we're launching Solo Grants: $100–$1,000 grants, 100% no strings attached, for people building technically ambitious projects solo. Julian sits down with Ari Dutilh who leads the program and is a former grantee himself, to map the wide world of microgrants and explain why the gap between a project seen through and one abandoned is usually just a few hundred dollars.

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Thais Castello Branco left the AI search company Exa, raised $18.5M, and built Taste Labs -- the "taste layer for AI" -- solo, with one mission: end AI slop. She and Julian go deep on what taste actually is (and why it isn't personalization), why everything AI makes is starting to look the same, how you turn something as subjective as "great design" into data a model can learn, and the honest case for going solo.

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Flo Crivello raised about $50M as a solo founder, then watched the market kill the company he'd built. Instead of quitting, he cut deep, pivoted, and rebuilt alone into Lindy — one of the top AI agent startups. This is a clear-eyed playbook on knowing when to kill a company, beating burnout with momentum, and building solo without being alone.

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Francis Davidson built Sonder into a multi-billion-dollar company, took it public, was pushed out as CEO, and watched it collapse. The same month he left, he started over — this time solo, building Odessia, an AI travel agent, with a founding team of seven. This is the honest version of the comeback: why he went solo when his co-founders were great, why he skipped the MVP, and why he still thinks the one-person billion-dollar company is a myth.

Topics covered:
- Building Sonder from a college side-hustle into a billion-dollar company, and its collapse
- Why he...

Dhravya Shah sold his first company at 16 and raised $3M at 19 as the solo founder of Supermemory, the open-source memory and context layer for AI agents (now past 26k GitHub stars and 1M+ SDK downloads). The twist: he never chased any of it as a business. He built in public, for free, said no to VCs for nine months, and only raised once the company's vision was undeniable. A conversation about why the fundraise is a result, not the goal.

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A $300M company. 30M+ users. Tens of millions in revenue, some raised and some bootstrapped from zero. Software that saves lives. Five founders, zero co-founders.

Julian connects the dots across the first six episodes of the show — Ben Cera (Polsia, $30M raised), Yasser Elsaid (Chatbase, $10M ARR bootstrapped), Paul Klein IV (Browserbase, a $300M company), Eugenia Kuyda (Replika, 30M+ users), Daniel Francis (Abel), and investor Charles Hudson (Precursor Ventures) — on why they built alone, and what they all figured out about it.

The through-line: don't take a co-founder of convenience. A talented solo founder beats a mi...

Michael Grinich built WorkOS solo — now a $2B company and the enterprise infrastructure behind OpenAI, Anthropic, and Replit — with no co-founder. So when he says "it's not the blood bond it was made out to be," it lands. This conversation is his case against the ride-or-die co-founder myth, the question he thinks actually matters before you start a company, and the honest bear and bull case for going it alone.

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Minn Kim runs Lighthouse, the AI-powered immigration firm rebuilding the visa stack for frontier-tech companies. She is solo. She isn't a lawyer. Her first two hires were engineers. The conversation with Julian covers how she got there, why "solve your own problem" isn't always the path to success, the complicated-vs-complex framework she uses to pick what to build, and her bull case for solo founding stated as a fact about her own life rather than a thesis.

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David J. Phillips tried co-founders four times before he went solo. With $40,000 left in the bank after a stalled aquihire, he refounded the company alone — and built Fondo, the accounting platform now used by hundreds of YC and pre-seed startups. The conversation is part founder-confessional, part early-stage GTM playbook.

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The press was declaring the EV car market dead. Roughly $20B in EV investment had been cancelled. The Inflation Reduction Act had just expired. In that environment, Jimmy Douglas raised a $20M Series A from Lightspeed. Before Plug, Jimmy spent five years at Tesla running the largest US EV operation in the world. He left in 2024 to build Plug — the EV-first wholesale marketplace — then spent two years protecting a marketplace orthodoxy that was capping growth, until an investor in a fake board meeting asked the question that broke the company open. The chart bent that quarter. This is the most...

Two trillion dollars of GDP flows through local government every year. 90%+ of city council votes are pre-decided before the meeting starts. And almost no founder will touch the market. Sunil is the rare exception. He ran for city council in Orinda, California, lost, and walked away with a newsletter for residents and an obsession with how opaque local government actually is. That newsletter became Hamlet — the civic AI making local government meetings legible to residents, real estate developers, and the cities themselves. This episode is the most concrete civic-engagement segment we've recorded on the show, and incidentally a clean fo...

For the first time ever, more than one in three new companies are being started solo. Five years ago that number was under 25%. This week the host becomes the guest: Julian Weisser — founder of Solo Founders, former co-founder of On Deck (where he ran 27 ODF cohorts and helped over 1,000 founders collectively raise $2B+) — sits down with David J. Phillips (CEO of Fondo, solo founder) for the full thesis behind Solo Founders. They cover the "denominator delusion" that keeps the co-founder default alive, the three types of solo founders (True Solo, Free Solo, Juiced Solo), why companies run out of hope...

Rahul Sonwalker is the solo founder and CEO of Julius AI — the natural-language data analysis platform that took six pivots (and one cease-and-desist from Microsoft for calling a product "Excel Copilot") to find. In this conversation, Rahul breaks down the "co-founder trap" that keeps most smart people stuck searching instead of building, why every great startup violates 1–2 core best practices, and why he insists on being the worst coder on his own team.

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Yasser Elsaid was in his last semester of university when he spotted an opportunity most people dismissed: adding custom data to large language models, before ChatGPT even launched. He built the first version of Chatbase in six weeks, got his first Stripe payment 30 minutes after launch, and has bootstrapped to $9M ARR over three years with zero outside funding. In this conversation, he breaks down the counterintuitive playbook behind his success — from the "benevolent dictatorship" of solo founding to why margins don't matter early on.

Topics covered:
- Spotting the RAG opportunity before ChatGPT launched and bu...

Daniel Francis dropped out of high school, taught himself to code at a DC nonprofit, impersonated a laid-off Twitter employee to work for Elon Musk, and then built Abel Police — AI software that generates police reports from body cam footage, saving officers a third of their shift from paperwork. In this conversation, he shares the personal experience that led him to policing, why he believes solo founders have a massive authorship advantage, and his unfiltered take on co-founders, culture, and the emotional reality of building alone.

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Eugenia Kuyda has spent over a decade building at the frontier of AI consumer products. First by founding Replika in 2014, hitting 30M users in conversational AI before ChatGPT even existed. Now, building Wabi: giving everyone the ability to build personal software. In this episode, she breaks down why she’s repeatedly chosen the solo founder path, why “co-founders by pressure” create long-term damage, and what it actually takes to keep going when things get brutally hard.

This is a conversation about conviction, authorship, loneliness, team-building, and the emotional reality of leading through uncertainty. Eugenia shares the differ...

Charles Hudson is the founder and managing partner of Precursor Ventures, where he's invested in over 500 companies as a solo GP. He shares a data point that challenges the co-founder consensus: 25-30% of his portfolio companies lose a co-founder before Series A. In this conversation, he explains why talented solo founders beat mismatched teams, the real cost of dead equity, and why you should never give away 40% of your company just to make fundraising easier.

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- The co-founder breakup rate: 25-30% before Series A
- Dead equity and cap table damage from co-founder...

Paul Klein IV applied to 500 internships and got rejected from 498. Now he's the solo founder of Browserbase – a headless browser infrastructure company for AI agents – valued at $300M in under 14 months. He didn't choose to be a solo founder. He tried to find a co-founder and couldn't. In this conversation, he explains why that turned out to be the right thing.

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Ben ran global teams at Travis Kalanick's Cloud Kitchens and left to build Polsia — an AI company builder — completely solo. Now he's hit $1.5M ARR in two weeks with 1,500 companies running on the platform.

In this conversation, we explore how his method of building might be the future of solo founding: his 80/20 framework for AI-native companies, why he designed his product after a video game about an AI apocalypse, the Daft Punk song on his about page, and what it actually looks like to run engineering, support, marketing, and strategy with zero employees.

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This is a new show about building companies solo in the age of AI. Six months after launching the Solo Founders program, which has seen founders reach millions in ARR and sell to public companies and governments, this podcast brings together early-stage builders and experienced solo founders to share what's working, what's not, and what it actually looks like to grow a company without co-founders.