• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia

Trendingnow

1

Elon Musk on MacKenzie Scott giving away $26 billion of her fortune: 'Sadly,' it makes the world a worse place

2

MacKenzie Scott alone accounted for one-third of America's $19.2 billion in megagifts last year

3

Philanthropy leader at Warren Buffett and Bill Gates’ Giving Pledge says children of billionaires are pushing them to give their wealth away faster

1

Elon Musk on MacKenzie Scott giving away $26 billion of her fortune: 'Sadly,' it makes the world a worse place

2

MacKenzie Scott alone accounted for one-third of America's $19.2 billion in megagifts last year

3

Philanthropy leader at Warren Buffett and Bill Gates’ Giving Pledge says children of billionaires are pushing them to give their wealth away faster
Successremote work

‘I don’t believe in remote work,’ says founder of a Jeff Bezos-backed Latin fintech that’s already turning a profit without touching its cash on hand

By
Daniel Cancel
Daniel Cancel
and
Bloomberg
Bloomberg
Down Arrow Button Icon
By
Daniel Cancel
Daniel Cancel
and
Bloomberg
Bloomberg
Down Arrow Button Icon
February 19, 2024, 6:23 PM ET
Rafael Stark
Rafael Stark, Founder & CEO, Stark Bank, on MoneyConf Stage during day three of Web Summit Rio 2023 at Riocentro in Rio de Janeiro, Brazil. Piaras Ó Mídheach/Sportsfile for Web Summit Rio via Getty Images
Add Fortune on Google for similar content.

Stark Bank, one of the few Latin America startups to receive funding from Jeff Bezos’ family office, is generating profits from its business of helping companies handle payments, while leaving cash raised from its funding rounds nearly untouched.

Recommended Video

The Sao Paulo-based company handled 155 billion reais ($31 billion) of payments in 2023, a three-fold jump from a year earlier, while more than doubling net income to 71.5 million reais, founder Rafael Stark said in an interview, disclosing the closely held firm’s 2023 financial results for the first time.

The startup, which assists companies in processing payments, invoices and receivables, is focused on gaining domestic market share from large corporate banks, said Stark, who owns 38% of the firm. Its list of 600 or so clients includes Gol Linhas Aereas Inteligentes SA, Localiza Rent a Car SA, Cia Ultragaz SA and fellow startups Loft and QuintoAndar.

“While a lot of tech companies are trying to stop losing money we’re posting high levels of profitability,” Stark, 35, said. “There’s no need to keep raising money and diluting my stake. It’s better to grow and create much more value further down the road.”

Series B

In its Series B round in 2022, Stark raised $45 million from investors including Bezos Expeditions, the Amazon.com Inc. founder’s family office, and Ribbit Capital at a valuation of $250 million. Earlier investors included Fabio Igel of Monashees Capital, Stewart Butterfield of Slack Technologies Inc., Brian Armstrong of Coinbase Global Inc. and Arash Ferdowsi of Dropbox Inc. 

Stark said the firm’s market share in various metrics remains small among corporate banks in Brazil, showing potential for growth. While Stark doesn’t have a formal banking license, it’s able to lend from its own cash on hand, and is planning to spend more on marketing in 2024 after years of keeping a low profile to build the product.

Stark said the company allows its clients to automate time-consuming tasks like billing and payroll.

“When a company manages a lot of transactions they can misplace information, and if they’re not organized they can lose a lot of money,” he said. “We allow the company to be more efficient. That means sometimes a team of 30 people that do manual tasks and commit human errors can be reduced to about five people to do the same work.”

About 30% of its nearly 90 employees are engineers.  

Stark’s focus on helping fellow tech companies and the ability to customize solutions for clients is an advantage compared with large Brazilian banks, said Bruno Diniz, a managing partner at consulting firm Spiralem, which works with fintechs.

‘Interesting Niche’

“They found a very interesting niche,” Diniz said. “They’re very lean in their tech stack, which allows them to provide this custom type of service for the big players. And once they create a customer solution for one player, they replicate that and start offering to all the other clients.”

Born Rafael Castro de Matos in the central state of Goias, Stark studied engineering in Brazil and later received a scholarship in the US, where he attended California Polytechnic University and Stanford University. He founded his firm in 2018 and legally changed his surname to Stark on all official documents. 

In drawing parallels to digital bank Nu Holdings Ltd.’s growth path, he anticipates a potential initial public offering about a decade after founding — or close to 2029 — and is focused for now on Brazil and Sao Paulo, where the bulk of the country’s biggest firms are based.

One glaring difference at Stark from other tech startups is that employees are expected to be in the office five days a week. To sweeten the deal, he’s built out the top floor of the building to soon house a bar, restaurant and meeting areas for employees. Stark also says he pays above market wages while offering a stipend for those living close to the office.

“I don’t believe in remote work,” he said. “We need people who are aligned with what we’re building. So someone who is aligned with their own comfort zone and remote work isn’t aligned with the values of Stark. To do big things, you need to leave your comfort zone.” 

The Fortune 500 Innovation Forum will convene Fortune 500 executives, U.S. policy officials, top founders, and thought leaders to help define what’s next for the American economy, Nov. 16-17 in Detroit. Apply here.
About the Authors
By Daniel Cancel
See full bioRight Arrow Button Icon
By Bloomberg
See full bioRight Arrow Button Icon
Add Fortune on Google for similar content.

Latest in Success

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Success

Young worker at desk
SuccessGen Z
Remote-first fintech giant Revolut is making the office compulsory for new Gen Z grads—and they’ll earn flexibility like their peers after one year
By Emma BurleighJune 30, 2026
4 hours ago
Henry Kravis
SuccessCareers
Wall Street billionaire turned an hour meeting with Disney’s cofounder into an entire day together—all he did was read a report most analysts ignored
By Preston ForeJune 30, 2026
5 hours ago
Warren Buffett breaks from a ‘lifetime’ pledge to the Gates Foundation as the Epstein fallout deepens
SuccessWarren Buffett
Warren Buffett breaks from a ‘lifetime’ pledge to the Gates Foundation as the Epstein fallout deepens
By Sydney LakeJune 30, 2026
5 hours ago
kean
PoliticsElections
New Jersey Republican to reappear in Congress after unexplained 4-month absence
By Mike Catalini and The Associated PressJune 30, 2026
7 hours ago
swiss
EuropeHeat
It’s so hot in Switzerland that yodelers are standing in fountains
By Jez Fielder and The Associated PressJune 30, 2026
7 hours ago
mcmaster
Commentary250 Years of Innovation
Boston Dynamics CEO: America’s next 250 years will be built by robots. Here’s what’s standing in the way
By Amanda McMasterJune 30, 2026
9 hours ago

Most Popular

Elon Musk on MacKenzie Scott giving away $26 billion of her fortune: 'Sadly,' it makes the world a worse place
Success
Elon Musk on MacKenzie Scott giving away $26 billion of her fortune: 'Sadly,' it makes the world a worse place
By Sydney LakeJune 29, 2026
1 day ago
MacKenzie Scott alone accounted for one-third of America's $19.2 billion in megagifts last year
Success
MacKenzie Scott alone accounted for one-third of America's $19.2 billion in megagifts last year
By Sydney LakeJune 25, 2026
6 days ago
Philanthropy leader at Warren Buffett and Bill Gates’ Giving Pledge says children of billionaires are pushing them to give their wealth away faster
Success
Philanthropy leader at Warren Buffett and Bill Gates’ Giving Pledge says children of billionaires are pushing them to give their wealth away faster
By Preston ForeJune 27, 2026
3 days ago
'Humanity has chosen to become idiots': This Brown professor switched to take-home exams after a mass shooting and discovered mass cheating
AI
'Humanity has chosen to become idiots': This Brown professor switched to take-home exams after a mass shooting and discovered mass cheating
By Catherina GioinoJune 29, 2026
22 hours ago
The retired college professor fighting a $313 trespassing ticket in Wisconsin thinks he's part of a national struggle
Environment
The retired college professor fighting a $313 trespassing ticket in Wisconsin thinks he's part of a national struggle
By Catherina GioinoJune 28, 2026
3 days ago
Current price of oil as of June 29, 2026
Personal Finance
Current price of oil as of June 29, 2026
By Joseph HostetlerJune 29, 2026
1 day ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.