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

Stax CEO Suneera Madhani has built fintech’s latest unicorn

Emma Hinchliffe
By
Emma Hinchliffe
Emma Hinchliffe
Most Powerful Women Editor
Down Arrow Button Icon
Emma Hinchliffe
By
Emma Hinchliffe
Emma Hinchliffe
Most Powerful Women Editor
Down Arrow Button Icon
March 9, 2022, 9:11 AM ET
Suneera Madhani Founder of Stax
Suneera Madhani, CEO of Stax. Courtesy of Stax

Good morning, Broadsheet readers! Anti-feminist backlash is a factor in South Korea’s presidential election, the trial over the attempted kidnapping of Gov. Gretchen Whitmer gets underway, and a new female-founded fintech unicorn hits the scene. Have a wonderful Wednesday.

– Unicorn alert. The fintech industry welcomed a new unicorn yesterday after the Orlando, Florida-based payments company Stax announced a $245 million series D round, valuing the business at more than $1 billion.

Cofounded by CEO Suneera Madhani and her brother Sal Rehmetullah in 2014, Stax is a subscriptions-based payments processor that charges merchants a flat subscription fee rather than a percentage on sales for both in-person and digital transactions. Over the past eight years, the 300-person company has processed $23 billion in payments for more than 20,000 customers across retail, professional services, and health care. With its new valuation—backed by investors Greater Sum Ventures, HarbourVest Partners, and Blue Star Innovation—Stax plans to go “head-to-head” with Stripe (like many fintech rivals promise to do).

Madhani, wearing a “Girls can do anything” t-shirt, talked to me over Zoom yesterday after her funding announcement. Here are some edited excerpts from our conversation:

What spurred your decision to launch a payments company?

I launched the company out of my parents’ home at the age of 26, with no money in my bank account. I was in the payments industry—selling payment terminals out of the trunk of my Volkswagen Beetle. As a millennial, seeing what I wanted from apps, I had this aha moment. Why wasn’t there a flat subscription fee in payments instead of all the fees and nickel-and-diming?

Suneera Madhani Founder of Stax
Suneera Madhani, CEO of Stax.
Courtesy of Stax

What does this valuation milestone mean for the business?

The concept of unicorn status as a benchmark in tech—it’s a boys’ club for all the wrong reasons. It’s amazing that we have validation for the company, but as a woman, sometimes you don’t know this is even possible. I didn’t even know I could go build a $100 million business, or to say, ‘I don’t want a $100 million business, I want a billion-dollar business.’

How was the fundraising experience? How did investors respond to Stax?

The first check is always the hardest. The hardest round I did was the first seed round. It was not easy out of Orlando, Florida, being a woman of color, and [during an earlier round] I was pregnant while fundraising. I didn’t go to CEO school. I don’t have an MBA. I didn’t have the background.

But it doesn’t get easier with time. It just becomes a different experience because the stakes are higher, right? It was incredible, finally at the table, to have other people now be the ones saying why they should invest.

What’s next for Stax?

There isn’t anyone with an omnichannel platform like ours. We believe we are industry-leading. Everybody’s thinking about payments, and owning that ecosystem and that user experience within their platform. We want to be that payment stack in that architecture for software companies who need omnichannel payments. We’re just getting started and we’re taking on Stripe head-to-head.

—

🚨 SXSW alert: I’m heading to Austin, Texas next week for a panel on how to support working women during the pandemic. Will you be at SXSW? Shoot me a note if you’d like to meet—and stop by our session with leaders from Color of Change, SEIU, and JUST Capital on Tuesday, March 15!

Emma Hinchliffe
emma.hinchliffe@fortune.com
@_emmahinchliffe

The Broadsheet is Fortune’s newsletter for and about the world’s most powerful women. Subscribe here.

ALSO IN THE HEADLINES

- Travel plans. UN high commissioner for human rights Michelle Bachelet is set to visit China and examine conditions in Xinjiang. After years of negotiations, Bachelet announced that Beijing is allowing her to move forward with the first visit from an official in her position in almost two decades. New York Times

- Election season. South Koreans are voting for a new president on Wednesday. The country's fight for gender equality—and a growing anti-feminist backlash—is affecting the election, in which conservative candidate Yoon Suk-yeol is popular with men and liberal contender Lee Jae-myung tried a last-minute appeal to women. So far the candidates are less than a percentage point apart. Washington Post

- Sports story. It's been days since news broke that WNBA star Brittney Griner was in Russian custody, and weeks since her imprisonment. So why isn't Griner's detention the biggest story in sports? After all, Griner was, by basketball metrics, the second-best player in the league last year and its best offensive player. New York Magazine

- Anti-activist.Fortune's Phil Wahba dives into the situation at Kohl's, where CEO Michelle Gass is trying to ward off an activist investor. Gass is doubling down on her turnaround plan, which includes opening stores in markets traditionally too small for the retailer and going all in on a partnership with Sephora. Fortune

MOVERS AND SHAKERS: ChowNow hired Medium and Disney alum Karene Tropen as CMO. DocuSign hired Iesha Berry as its first chief diversity and engagement officer. Fundbox hired Rebecca Sachs as chief people officer. Kristen Collis, formerly with Change Healthcare, joins Tia as chief of staff. Gaming platform Unity named former Google Cloud exec Carol Carpenter CMO. 

IN CASE YOU MISSED IT

- Overdue apology. Scottish First Minister Nicola Sturgeon issued an apology for witch hunts that took place in Scotland between the fifteenth and eighteenth centuries. She responded to a petition asking for pardons for thousands of people convicted and executed under the Witchcraft Act of 1563, calling those accusations the result of "deep misogyny." Guardian

- Jury pool. The trial of four men charged with plotting to kidnap Michigan Gov. Gretchen Whitmer began with jury selection on Tuesday. The judge on the case told potential jurors to put aside their feelings about Whitmer and her pandemic response—the element that so angered the men who aimed to kidnap her. Detroit Free Press

- The key to Athleta. Gap Inc. says Athleta should reach $2 billion in sales by 2024, which would be almost double its 2020 revenue. Athleta CEO Mary Beth Laughton is leaning into celebrity marketing as part of her strategy to get there. The brand started with Olympians Allyson Felix and Simone Biles, and is now debuting a line with singer Alicia Keys. Bloomberg

ON MY RADAR

How a feminist uprising reshaped Mexico City CityLab

Cooking as family therapy The Cut

The rise of Canva, the $40 billion design juggernaut Fast Company

PARTING WORDS

"No two countries run by women would ever go to war."

-Sheryl Sandberg, offering her take on Russia's invasion of Ukraine. 

This is the web version of The Broadsheet, a daily newsletter for and about the world’s most powerful women. Sign up to get it delivered free to your inbox.

About the Author
Emma Hinchliffe
By Emma HinchliffeMost Powerful Women Editor
LinkedIn iconTwitter icon

Emma Hinchliffe is Fortune’s Most Powerful Women editor, overseeing editorial for the longstanding franchise. As a senior writer at Fortune, Emma has covered women in business and gender-lens news across business, politics, and culture. She is the lead author of the Most Powerful Women Daily newsletter (formerly the Broadsheet), Fortune’s daily missive for and about the women leading the business world.

See full bioRight Arrow Button Icon

Latest in Newsletters

NewslettersCIO Intelligence
Inside tractor maker CNH’s push to bring more artificial intelligence to the farm
By John KellDecember 10, 2025
31 minutes ago
NewslettersTerm Sheet
5 VCs sounds off on the AI question du jour
By Amanda GerutDecember 10, 2025
1 hour ago
Hillary Super at the 2025 Victoria's Secret Fashion Show held at Steiner Studios on October 15, 2025 in New York, New York.
NewslettersCEO Daily
Activist investors are disproportionately targeting female CEOs—and it’s costing corporate America dearly
By Phil WahbaDecember 10, 2025
1 hour ago
Databricks co-founder and CEO Ali Ghodsi (right) with Fortune editorial director Andrew Nusca at Fortune Brainstorm AI 2025 in San Francisco. (Photo: Stuart Isett/Fortune)
NewslettersFortune Tech
How Databricks could achieve a trillion-dollar valuation
By Andrew NuscaDecember 10, 2025
2 hours ago
A man and robot sitting opposite each other.
AIEye on AI
The problem with ‘human in the loop’ AI? Often, it’s the humans
By Jeremy KahnDecember 9, 2025
16 hours ago
NewslettersMPW Daily
Remote work’s ‘hidden penalty:’ Women who work from home are less likely to get promoted—while men still move up
By Emma HinchliffeDecember 9, 2025
18 hours ago

Most Popular

placeholder alt text
Economy
‘Fodder for a recession’: Top economist Mark Zandi warns about so many Americans ‘already living on the financial edge’ in a K-shaped economy 
By Eva RoytburgDecember 9, 2025
15 hours ago
placeholder alt text
Success
When David Ellison was 13, his billionaire father Larry bought him a plane. He competed in air shows before leaving it to become a Hollywood executive
By Dave SmithDecember 9, 2025
1 day ago
placeholder alt text
Banking
Jamie Dimon taps Jeff Bezos, Michael Dell, and Ford CEO Jim Farley to advise JPMorgan's $1.5 trillion national security initiative
By Nino PaoliDecember 9, 2025
17 hours ago
placeholder alt text
Uncategorized
Transforming customer support through intelligent AI operations
By Lauren ChomiukNovember 26, 2025
14 days ago
placeholder alt text
Real Estate
The 'Great Housing Reset' is coming: Income growth will outpace home-price growth in 2026, Redfin forecasts
By Nino PaoliDecember 6, 2025
4 days ago
placeholder alt text
Success
Craigslist founder signs the Giving Pledge, and his fortune will go to military families, fighting cyberattacks—and a pigeon rescue
By Sydney LakeDecember 8, 2025
2 days ago
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • 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
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map

© 2025 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.