United Kingdom
The Diary of a CEO is the flagship content brand of Steven Bartlett, a British entrepreneur and investor who built his public profile after co-founding Social Chain, a social media marketing agency he scaled and listed on the Frankfurt Stock Exchange before his thirtieth birthday.
Total Followers +4.0%
23.6M
Across YouTube, Instagram
Primary Platform
YouTube
18.5M followers · 78% of audience
Engagement
3.3%
vs. 1.5% category median
Sponsorship Tier
Mega
Est. $62K–$144K / IG post
| Window | YouTube | Combined | ||
|---|---|---|---|---|
| Last 7 days | +89K +0.5% | +0 +0.0% | +0 +0.0% | +89K |
| Last 30 days | +836K +4.5% | +115K +2.2% | +0 +0.0% | +951K |
| Last 90 days | +2.9M +15.6% | +219K +4.3% | +0 +0.0% | +3.1M |
| Last 365 days | +2.9M +15.6% | +219K +4.3% | +0 +0.0% | +3.1M |
Daily follower snapshots from CreatorDB's longitudinal index.
| Brand | Type | Platform | Date | Performance vs. baseline |
|---|---|---|---|---|
| Ketone-IQ Sponsorship | Sponsored content | YouTube | Jun 2026 | — |
| HeyGen Sponsorship | Sponsored content | YouTube | Jun 2026 | — |
| Cometeer Sponsorship | Sponsored content | YouTube | Jun 2026 | — |
| Stan Sponsorship | Sponsored content | YouTube | May 2026 | — |
| Function Health Sponsorship | Sponsored content | YouTube | May 2026 | — |
The Diary of a CEO is the flagship content brand of Steven Bartlett, a British entrepreneur and investor who built his public profile after co-founding Social Chain, a social media marketing agency he scaled and listed on the Frankfurt Stock Exchange before his thirtieth birthday. He later joined BBC's Dragons' Den as one of its youngest-ever panellists, which significantly expanded his mainstream visibility in the UK. The podcast and YouTube channel launched as a personal journal of entrepreneurial thinking and have since evolved into a long-form interview series drawing guests from business, psychology, health science, and pop culture. That breadth — reflected in recent episode hashtags spanning Esther Perel, Kevin O'Leary, and AI risk commentary — keeps the channel from sitting neatly in any single vertical, which is both a strength and a distinguishing characteristic.
Bartlett's audience skews toward ambitious 25-to-34-year-olds split almost evenly by gender, with the United States accounting for roughly half of all viewership despite the channel's British origin — a signal of genuine cross-market appeal rather than domestic fame. His current sponsor roster leans heavily into the health-performance and creator-tech space: Ketone-IQ and Function Health suggest an audience primed for biohacking content, while HeyGen and Stan point toward early-adopter entrepreneurial viewers. Engagement rates running meaningfully above category median at this follower scale indicate strong retention despite the channel's size. With his broader business ecosystem — Flight Story Studio, Flight Fund, and the Founded media property — Bartlett is building a media-to-venture flywheel that positions the channel less as a standalone creator asset and more as the public face of an integrated media company.
Thediaryofaceo reaches an audience concentrated in United Kingdom primarily through YouTube, and is best activated via long-form YouTube integrations, Instagram Reels and Stories. As a business creator they map naturally to brands targeting that space. Demonstrated partners include Ketone-IQ and HeyGen. Engagement on YouTube runs around 3.3%, pointing to an audience suited to category-relevant, mid-funnel brand campaigns rather than pure-reach buys.
Benchmark estimates for a creator at Thediaryofaceo's tier (Mega, 23.6M combined followers, United Kingdom). Pulled from CreatorDB's category benchmarks.
The CreatorDB Agency runs end-to-end influencer campaigns globally — shortlisting, outreach, contracting, and performance reporting. Talk to our team about building a campaign around creators in this niche.
The Diary of a CEO is hosted by Steven Bartlett, a British entrepreneur, investor, and author. He built the show from a personal podcast into one of the largest long-form interview series in the world, covering business, health, science, and mindset with leading experts and public figures.
Yes, Steven Bartlett dropped out of Manchester Metropolitan University before finishing his degree to focus on building his social media business. That decision became a central part of his personal story and the founding mythology behind The Diary of a CEO brand.
Yes, Steven Bartlett joined the BBC's Dragon's Den as one of the show's youngest-ever Dragons. His appearance significantly raised his public profile outside the podcast world and gave him a mainstream UK television platform alongside his content career.
Yes, Steven Bartlett co-founded Social Chain, a social media marketing agency, while he was still briefly enrolled at university. The company's rapid growth and eventual public listing became the foundation of his entrepreneur identity and the origin story he returns to repeatedly on The Diary of a CEO.
Flight Story Studio is a content and creative production company Steven Bartlett founded, listed directly in his Instagram bio. It reflects his philosophy that media and brand storytelling are inseparable from modern business, and it operates alongside his venture fund, Flight Fund, and his startup platform, Founded.
Steven Bartlett states in his own Instagram bio that he has invested in over 100 companies, primarily through his venture vehicle Flight Fund. His portfolio spans technology, health, consumer brands, and Web3, including a position in Thirdweb.com.
The show has featured billionaire investors like Kevin O'Leary, relationship experts like Esther Perel, doctors, neuroscientists, and major cultural figures. Steven Bartlett structures interviews around business, personal development, health, and life philosophy rather than limiting guests to any single field.
Yes — the show has expanded well beyond its business-podcast origins into health, nutrition, emotional wellbeing, and medical technology. Sponsors like Function Health and Ketone-IQ reflect that shift, and a significant share of recent episodes feature doctors and researchers rather than entrepreneurs.
Steven Bartlett was born in Botswana and grew up in Plymouth, England, making him British by upbringing and nationality. The Diary of a CEO is produced in the United Kingdom, though its single largest audience is in the United States.
The Diary of a CEO has grown to well over 18 million subscribers on YouTube, placing it firmly in the Mega creator tier. Its engagement consistently runs above the category average, which is notable given how crowded the long-form interview and podcast-on-video space has become.
Stats (followers, engagement, audience demographics, growth) are pulled live from the CreatorDB API covering YouTube, Instagram and TikTok. Bio and FAQ content is AI-assisted; news items are sourced from cited public press at generation time. Read the full methodology →
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