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

Serena Williams and Mark Cuban Invest in Startup Fighting Maternal Mortality

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
July 15, 2019, 8:00 AM ET

After Serena Williams gave birth to her daughter in 2018, she shared the life-threatening complications she experienced—and how, as a black woman, she was three times more likely to die from pregnancy or childbirth-related causes.

Now Williams—through her firm Serena Ventures—has invested in Mahmee, a startup working to end the maternal mortality crisis affecting black women in the United States. About 700 women die from pregnancy-related complications in the United States every year, according to the Centers for Disease Control. Three in five of those deaths are preventable, and one-third of those deaths happen up to a year after the birth.

Williams was joined in the $3 million funding round by angel investor Mark Cuban, returning investor the Bumble Fund, as well as ArlanWasHere, the joint project between Arlan Hamilton of Backstage Capital and Cuban, among others. The deal is the first lead investment for ArlanWasHere.

“I am incredibly excited to invest and partner with Mahmee, a company that personifies my firm’s investment philosophy,” Williams said in a statement. “Given the bleak data surrounding maternal death and injury rates, I believe that it is absolutely critical right now to invest in solutions that help protect the lives of moms and babies.”

Mahmee co-founder and CEO Melissa Hanna.

Mahmee, founded in 2014, offers an online platform that allows women to track their health and the health of their child after giving birth. The platform connects users with supplemental health professionals, like lactation consultants, and lets them ask questions they feel don’t rise to the level of contacting their doctor. Unlike other telehealth platforms, Mahmee does not prescribe birth control or other medication. Its stated goal is to “close the gaps” in maternal and infant care.

“Technology’s not going to save the world, it’s not going to save the maternal health care industry,” says Mahmee CEO Melissa Hanna. She co-founded the company with her mother, Linda Hanna-Sperber, a longtime nurse and lactation consultant, and a third co-founder, Sunny Walia. “It can be a component of a solution here,” she says.

By selling its service through health systems and hospitals—like current partners Cedars-Sinai Medical Center and Children’s Hospital Los Angeles—Mahmee works to reach consumers of all income levels. A woman who receives health coverage through Medicaid, for instance, can use the Mahmee platform if her hospital offers it.

According to Hanna, Williams connected with Mahmee through Hamilton. Serena Ventures has invested in more than 30 companies and increased its public profile in the past year. “It was a really important moment for our team to have support from someone like her,” Hanna said.

With its funding, Mahmee plans to hire more engineers, clinicians, and sales staff to support its expansion; the startup is focusing on cities with especially high maternal mortality and morbidity rates.

More must-read stories from Fortune:

—Sallie Krawcheck wants CEOs to “break the wheel” to solve the diversity crisis

—What’s next in blockchain? Ask this teenage engineer

—Accenture names a new CEO: Julie Sweet

—Here’s how to get more women in leadership

—Thirty-five U.S states still charge women a tampon taxKeep up with the world’s most powerful women with Fortune‘s Broadsheet newsletter.

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 MPW

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
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
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
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in MPW

takaichi
Arts & EntertainmentJapan
Japan’s Prime Minister welcomes Deep Purple, capping 50-year love affair with heavy metal: ‘You’re my god’
By Mari Yamaguchi and The Associated PressApril 10, 2026
1 day ago
Eva Longoria secretly worked as a headhunter from her soap opera dressing room for three years—because she refused to be a ‘struggling actor’
SuccessThe Promotion Playbook
Eva Longoria secretly worked as a headhunter from her soap opera dressing room for three years—because she refused to be a ‘struggling actor’
By Orianna Rosa RoyleApril 10, 2026
2 days ago
Fortune 500 Power Moves: Which executives are gaining and losing power
C-SuiteFortune 500 Power Moves
Fortune 500 Power Moves: Which executives are gaining and losing power
By Fortune EditorsApril 3, 2026
8 days ago
The short, uneasy tenure of Pam Bondi
NewslettersMPW Daily
The short, uneasy tenure of Pam Bondi
By Emma HinchliffeApril 3, 2026
8 days ago
Olympic champion Eileen Gu’s advice for women seeking her heights of career success: Don’t be a small fish in a big pond, ‘Create your own pond’
MPWMost Powerful Women
Olympic champion Eileen Gu’s advice for women seeking her heights of career success: Don’t be a small fish in a big pond, ‘Create your own pond’
By Emma HinchliffeMarch 31, 2026
12 days ago
Can Sheryl Sandberg’s Lean In take on tradwives and the manosphere?
NewslettersMPW Daily
Can Sheryl Sandberg’s Lean In take on tradwives and the manosphere?
By Emma HinchliffeMarch 27, 2026
15 days ago

Most Popular

Scottie Scheffler joined Tiger Woods and Rory McIlroy in golf's $100M club—and donated his entire Ryder Cup stipend to charity
Success
Scottie Scheffler joined Tiger Woods and Rory McIlroy in golf's $100M club—and donated his entire Ryder Cup stipend to charity
By Fortune EditorsApril 10, 2026
1 day ago
The Navy confirmed an ‘abundant amount’ of Uncrustables when the Artemis II crew lands. Smucker’s just offered them a lifetime supply
Politics
The Navy confirmed an ‘abundant amount’ of Uncrustables when the Artemis II crew lands. Smucker’s just offered them a lifetime supply
By Fortune EditorsApril 10, 2026
1 day ago
The 'affordability economy' has created a housing market nobody predicted: Prices collapsing in the Sun Belt, soaring in the Rust Belt
Real Estate
The 'affordability economy' has created a housing market nobody predicted: Prices collapsing in the Sun Belt, soaring in the Rust Belt
By Fortune EditorsApril 11, 2026
16 hours ago
Warren Buffett says 'accumulating great amounts of money' doesn’t achieve greatness—He still lives in a $31,500 Nebraska home and clipped coupons
Success
Warren Buffett says 'accumulating great amounts of money' doesn’t achieve greatness—He still lives in a $31,500 Nebraska home and clipped coupons
By Fortune EditorsApril 11, 2026
13 hours ago
Palantir CEO says AI ‘will destroy’ humanities jobs but there will be ‘more than enough jobs’ for people with vocational training
Future of Work
Palantir CEO says AI ‘will destroy’ humanities jobs but there will be ‘more than enough jobs’ for people with vocational training
By Fortune EditorsApril 11, 2026
12 hours ago
Schools across America are quietly admitting that screens in classrooms made students worse off and are reversing years of tech-first policies
Innovation
Schools across America are quietly admitting that screens in classrooms made students worse off and are reversing years of tech-first policies
By Fortune EditorsApril 10, 2026
2 days 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.