Founders · new episode 4 Dec 2025
Hosted by Sequoia Capital
The turning points of well-known companies, told by their founders and Sequoia.
Investors named as guests in the most episode titles on Crucible Moments.
In the early 2000s, the cybersecurity industry was dominated by incumbents focused on high margins, not innovation. Nir Zuk tells the story of how, frustrated by this stagnant culture, he set out on his own with a radical idea: the Next-Generation Firewall. His vision was to unify dozens of security functions into a…
At 19, Markus Villig borrowed €5,000 from his parents to fix Estonia's broken taxi system. What happened next defied every conventional startup playbook. Markus started by making fleet dispatch software for local taxi companies. But when it became clear they weren’t embracing the on-demand revolution, he pivoted the…
Founder and CEO Ilkka Paananen set out to create a different kind of game company, one where the game development teams would have decision-making power, not upper management. Ilkka recalls the early decision to scrap their first game and the entire cross-platform strategy that had landed them a Series A financing in…
In 2014, Keller Cliffton made an audacious pivot: shut down his robotic toy company and rebuild it as an autonomous drone delivery system for life-saving medical supplies. Investors were skeptical: The team knew nothing about drones, healthcare, or logistics. But they pushed forward anyway. This is the story of…
Previously on Crucible Moments, we explored the inflection points that shaped some of the most significant names in technology. Now, we're returning for a brand new season. Join us as leaders from Stripe, Zipline, Palo Alto Networks, Klarna, Supercell and more share what it's actually like to navigate the…
When Nubank started 10 years ago, a few big banks in Brazil had a stranglehold on the largest economy in Latin America: they controlled nearly all the market share, and imposed some of the highest fees and worst banking terms in the world. David Vélez was an unlikely character to challenge the system: an outsider from…
A scrappy upstart taking on hyperscalers in a category with lots of hand-wavers, Dropbox became the canonical example of Silicon Valley viral growth, adding 50 million users in the first years following their 2008 launch and quickly dominating their category. However, as CEO Drew Houston explains, their path from…
Earlier this season we heard the startup story of ServiceNow, from Fred Luddy setting out to reinvent IT workflows as a first-time founder, to Frank Slootman joining as CEO to scale the business to an IPO. Even more remarkable is that ServiceNow has only accelerated as a public company, growing over ten-fold in the…
Millions of Americans use their smartphones to invest and manage their finances every day, but before Robinhood started in 2013, finance looked very different. Investing was something for the wealthy, with steep fees charged on every trade, and was done exclusively on computers with arcane trading software. In this…
This episode takes us back to the earliest days of YouTube, as the founders explain why it was a longshot that succeeded against all odds. When cofounders Steve Chen, Chad Hurley and Jawed Karim left PayPal to start YouTube, it wasn’t even clear that the nascent broadband infrastructure could support playing video in…
Founder Matthew Rabinowitz opens up about the intensely personal journey that set him on a course to revolutionizing healthcare. A PhD in electrical engineering, he had no background in genetics or biology, but after his sister had a baby with Down syndrome that hadn’t been detected and tragically died after 6 days,…
Tony Xu and Miki Kuusi share insights from building two of the world's most successful delivery platforms, DoorDash and Wolt, which merged in 2022 to create an $80B GOV business operating in 32 countries. In this candid conversation with Sequoia's Alfred Lin live at a Sequoia event in Europe, they discuss the challenges…
DoorDash faced skeptics from the start. Grubhub, Delivery.com, and others were already addressing the restaurant delivery market when CEO Tony Xu and his co-founders started in 2013. But after talking to hundreds of local small businesses, they realized there was still an unmet need: None of the competitors solved the…
The biggest enterprise software company to come out of Europe in the last decade didn’t come from London, Paris, Berlin or Stockholm, but Bucharest, Romania. UiPath, founded in 2005 and originally called DeskOver, was a scrappy handful of engineers bootstrapping out of an apartment in Bucharest for about a decade,…
Reddit is one of the largest and most culturally influential sites on the internet, and its journey is one of the most unusual company stories in internet history. College roommates Steve Huffman and Alexis Ohanian founded Reddit in 2005 and scaled it on a shoestring until Condé Nast acquired it the following year.…
MongoDB, founded in 2007, originally aimed to create a platform-as-a-service system with a new database layer. Facing competition from Google, the founders pivoted to focus solely on their database product, MongoDB, a new kind of database built for the scale of the internet era. Founder Dwight Merriman built a product…
In 2004, bankrupt after the company where he’d previously worked had imploded, Fred Luddy decided to start over as a first-time founder at age 50. His vision was to reinvent the nascent IT software field for the cloud era. What started as simple help desk replacement software would eventually become a ~$150B market…
In Season 1 of Crucible Moments, we heard from founders like PayPal’s Max Levchin, Block’s Jack Dorsey, Nvidia’s Jensen Huang and more about the turning points and key decisions that shaped their journeys. Now Crucible Moments is back for another exciting season. We’ll get the unvarnished history and inside story from…
Crucible Moments will be back shortly with season 2. You’ll hear from the founders of YouTube, DoorDash, Reddit, and more. In the meantime, we’d love to introduce you to a new original podcast, Training Data, where Sequoia partners learn from builders, researchers and founders who are defining the technology wave of…
CEO Jensen Huang tells the legendary story of Nvidia, from the company’s early days pioneering 3D graphics cards for a niche PC gaming market to powering the AI revolution as the sixth most valuable company in the world. Nvidia faced multiple near-death experiences along the way, and their so-called “diving catches,”…
Millions of customers have explored their genome with 23andMe. But when the company started in 2006, the idea of consumer DNA testing was heresy to the medical establishment. The FDA once even ordered 23andMe to stop selling its health testing product. The company persevered to make allies out of adversaries, and…
Co-founders Hosain Rahman and Alex Asseily, and Chief Creative Officer Yves Behar, recount the meteoric rise and fall of Jawbone. One of the most innovative companies of the mid 2000s, Jawbone pioneered wearable technology with UP, the first wrist-worn fitness tracker, and revolutionized sound with Jambox, the first…
Founders Brian Halligan and Dharmesh Shah reveal how they took a blog started as a hobby and turned the ideas behind it into a $20+ billion success. In 2006, HubSpot upended traditional approaches to marketing by taking advantage of the the nascent internet in a new way: By capitalizing on seach engines and social…
What happens to an events company when every event is canceled? “Even if you have spent 14 years building something, it could truly be gone in 14 days.” After working tirelessly to revolutionize how live events are organized, this was the reality Eventbrite CEO Julia Hartz faced in March of 2020 as pandemic lockdowns…
CEO Jack Dorsey reflects on Block’s origins and defining moments with host Roelof Botha. Dorsey founded Square in 2009 with a clear vision: economic empowerment for all. Their dongle that turns iPhones into credit card readers was just the start. With Square, small business owners were able to reach more customers…
As Airbnb took off in the early 2010s, Brian Chesky remembers worrying, “this is just one accident away from being a dead idea.” That accident finally came in 2011 when a host’s apartment was ransacked. It set off a period of soul searching that became a turning point, the company’s efforts to rebuild trust led it to…
PayPal was the defining tech company of its generation, with alumni going on to start YouTube, Tesla, Yelp, LinkedIn, among many others. But the company nearly didn’t make it. The PayPal of today only exists because of how its team navigated early, unprecedented inflection points. Find out why Max Levchin now says he…
A podcast about the inflection points that shaped some of the most important companies of our time. Crucible moments are pivotal decisions that determine your trajectory. Hear from founders like Jack Dorsey of Block, Jensen Huang of Nvidia, and Anne Wojcicki of 23andMe about how they navigated the challenges and…
Firms named in its episodes, and people named in descriptions: talked about, rather than on the show.