KIM BEOM-SU
Kakao founder — built South Korea's everything-app and became the country's richest person
Imagine if WhatsApp also ran your bank, your taxi, your music, your shopping, your healthcare appointments, and your stock trades. That's KakaoTalk in South Korea — and Kim Beom-su built it. He went from being a Samsung engineer to creating the platform that 93% of South Koreans use every single day. Then in 2022, a fire at a Kakao data center took down the entire app for a day and the country literally couldn't function. That's either terrifying market dominance or genius — probably both.
Net Worth
$7 billion
Nationality
South Korean
Time Horizon
Long-Term
Risk Appetite
7 / 10
Net Worth Context
- · Still a billionaire — just the quiet kind at the end of the table.
CAREER & BACKGROUND
Born in 1966 in Seoul, South Korea. Grew up in relative poverty.
Graduated from Seoul National University (Korea's top university) with a degree in industrial engineering. Worked as an engineer at Samsung SDS.
Left Samsung to found Hangame, one of Korea's first online gaming platforms, in 1998. Merged Hangame with NHN (now Naver) in 2001 — this made him wealthy but he didn't run the combined entity.
Founded Kakao (originally called IWILAB) in 2010. Launched KakaoTalk as a free mobile messenger.
KakaoTalk reached 100 million users by 2014. Expanded Kakao into payments (KakaoPay), banking (KakaoBank), ride-hailing (KakaoT), entertainment (KakaoPage, Kakao Entertainment), gaming, and even a blockchain (Klaytn).
Kakao went public and Kim became South Korea's richest person. In October 2022, a fire at an SK C&C data center in Pangyo knocked out KakaoTalk for 13 hours, causing nationwide chaos.
In 2023, Kim was arrested on stock manipulation charges related to the Kakao-SM Entertainment acquisition.
COMPANIES & ROLES
Kakao Corporation (founder and former chairman), KakaoBank, KakaoPay, KakaoT (mobility), Kakao Entertainment, Kakao Games, Kakao Healthcare, Klaytn blockchain. Previously co-founded Hangame (merged into NHN/Naver).
K Cube Ventures — his personal VC fund investing in Korean startups.
INVESTING STYLE & PHILOSOPHY
Kim builds platform ecosystems. His approach is: create a messaging app everyone uses, then bolt on every possible service until the app becomes indispensable.
It's the WeChat playbook, applied to South Korea. He's aggressive about vertical integration — banking, payments, transport, entertainment, gaming all under one roof.
As a personal investor through K Cube Ventures, he backs Korean startups early and connects them to the Kakao ecosystem.
THE PLAYBOOK
Risk Approach
High risk tolerance. Kim left the security of Samsung to start an online gaming company in 1998 — during the Asian financial crisis.
He bet his Naver/NHN windfall on building a messaging app when nobody thought Korea needed another chat platform. He expanded Kakao into banking without any financial services experience.
He's comfortable entering industries he knows nothing about if he believes the platform can win.
Money Habits
Kim is unusual among Korean billionaires in that he's not from a chaebol family. He built his wealth from scratch.
He's known for being relatively modest in lifestyle compared to other Korean tycoons. He stepped back from day-to-day management of Kakao multiple times to focus on philanthropy.
In 2021, he pledged to donate more than half his wealth, inspired by the Giving Pledge. He's donated hundreds of millions to education, poverty alleviation, and technology access programs.
BIGGEST WIN
KakaoTalk achieving 93% penetration in South Korea is the monster win. In a country of 52 million people, 48 million use KakaoTalk daily.
KakaoBank became the most popular digital bank in Korea within months of launch, reaching 20 million customers. KakaoPay processes billions in transactions.
The combined Kakao ecosystem touches every part of Korean daily life.
BIGGEST MISTAKE
The 2023 arrest was the biggest blow. Kim was detained on charges of stock price manipulation related to Kakao's attempted acquisition of SM Entertainment (K-pop label) in early 2023.
Prosecutors alleged Kakao inflated SM's stock price during a bidding war with HYBE. Whether Kim is convicted or not, the arrest damaged his reputation and Kakao's stock.
The 2022 data center outage was also a wake-up call — having a single point of failure for an entire country's digital infrastructure exposed serious risks.
FINANCIAL PHILOSOPHY
Kim believes technology companies should reduce inequality, not increase it. He's spoken about how growing up poor shaped his view that digital platforms should make services cheaper and more accessible.
He launched KakaoBank specifically because he thought Korean banks overcharged regular people. His philosophy is "technology for the people" — populist in framing, but the execution has been ruthlessly competitive.
Critics say Kakao became exactly the kind of monopolistic gatekeeper Kim originally opposed.
FAMILY & PERSONAL LIFE
Married with children. Very private about family life.
His personal story of growing up in poverty and becoming Korea's richest person resonates strongly in Korean culture, where the "self-made" narrative is relatively rare compared to inherited chaebol wealth.
EDUCATION
Graduated from Seoul National University (SNU) with a degree in industrial engineering. SNU is Korea's most prestigious university — admission is extremely competitive.
His engineering background influenced Kakao's product-first culture.
BOOKS & RESOURCES
Kim has referenced Reid Hoffmans The Start-up of You and been influenced by the lean startup methodology
He's a known reader of Silicon Valley business literature and has said he studied Facebook's platform strategy extensively before building Kakao's ecosystem
QUOTES (6)
I grew up poor. I know what it feels like to be excluded from services because you can't afford them. KakaoBank exists because regular banks forgot about regular people.
A messaging app is not a messaging app. It is the front door to a person's digital life. Once you own the front door, you can build anything behind it.
When 93% of a country uses your product every day, you stop being a company and start being infrastructure. That comes with a responsibility most tech founders don't think about.
I left Samsung because I realized I would spend 30 years building someone else's dream. I wanted to spend 30 years building my own — even if it failed.
Technology should reduce inequality, not increase it. If your platform makes rich people's lives easier and poor people's lives harder, you've built the wrong thing.
The chaebol system taught me what I didn't want to be. Korea doesn't need more inherited empires. It needs more people who build from nothing.
NETFIGO SCORE
Proprietary 5-dimension investor rating
Risk Appetite
Contrarian Index
Track Record
Accessibility
Time Horizon
Head-to-Head
Compare Kim Beom-su vs another investor.