Julian Weisser | The Solo Flippening: How 1-in-3 Startups Broke the Co-Founder Myth

Julian Weisser | The Solo Flippening: How 1-in-3 Startups Broke the Co-Founder Myth

Author: Fondo December 20, 2025 Duration: 18:18

The script has been the same for decades: find a co-founder

Investors demanded it.
Accelerators screened for it.

The narrative became so entrenched that founders started pairing up out of obligation, not alignment.

Julian Weisser, founder of SOLO and ODF, has a name for this phenomenon: co-founders of convenience

And he's proving they're not just unnecessary-they're often the reason companies fail.

This week, Julian released 'The State of Solo Founding' report: "Today, solo founding is considered odd. Soon it will be the default. This report features exclusive Carta data alongside commentary from solo founders who have raised over $250M and the investors who backed them."

The comprehensive tracks solo founder rates across thousands of startups, the headline finding is historic: for the first time, over one-third of new startups are solo-founded (That's 36% in 2025, up from under 25% in 2019)

👉 Download the report here: https://solofounders.com/report

👉 Apply to the Solo Founders Program today. A three-month, in-person residency for 6 ambitious solo founders. Next cohort starts Jan. 23, 2026: solofounders.com/program

(00:44) Why the report matters now
(02:17) The data: 24% → 36%, first year over 1-in-3
(04:32) 3 forces: AI, visible wins, collapsing narrative
(06:00) Investor POV
(07:30) Org design insight: cutting the middle layer
(09:47) Download report: http://solofounders.com/report
(11:01) ODF26: half the cohort flipped to solo
(12:33) Inside SOLO
(14:30) Why coworking doesn't work for startups
(16:37) Outcomes: $1M ARR in 2 months & more
(17:19) Follow @solofounding & @joinodf

Where to find Julian Weisser:‍
X: https://x.com/julianweisser
LinkedIn: https://www.linkedin.com/in/julianweisser
Website: https://weisser.io‍

Where to find SOLO: ‍
X: https://x.com/solofounding
LinkedIn: https://www.linkedin.com/company/solo-founders
Website: https://solofounders.com

Where to find ODF:‍
X: https://x.com/joinodf
LinkedIn: https://www.linkedin.com/company/solo-founders
Website: https://joinodf.com‍

Newsletters: ‍
Texts with Founders: https://textswithfounders.com
Multitudes: https://multitudes.weisser.io‍

Where to find David Phillips:
X: https://x.com/davj
LinkedIn: linkedin.com/in/davjphillips‍

Brought to you by:‍ Fondo — All-in-one accounting for startups @ fondo.com


Behind every startup's big idea is the less glamorous, but utterly essential, work of building a real business. The Startup Growth Podcast, from the team at Fondo, digs into that reality. Fondo itself is an all-in-one accounting platform designed for startups, handling everything from closing the books to filing taxes and even helping secure cash back from the IRS. This practical experience informs every conversation. You’ll hear founders and operators talk not just about vision, but about the tangible systems, financial decisions, and marketing pivots that actually fuel growth. Episodes move beyond theory to explore the operational choices that separate promising companies from sustainable ones. It’s a resource for entrepreneurs who understand that strategy is meaningless without execution, and that a healthy bottom line is the truest measure of progress. Tune in for honest discussions that bridge the gap between entrepreneurial ambition and the business fundamentals required to make it last.
Author: Language: English Episodes: 48

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