Fat Merchant

In 2012, Sunira Madhani was working as a sales representative for a merchant services company, driving her Volkswagen Beetle from plaza to plaza selling payment terminals out of her trunk. She describes it as "the worst job I've ever had." Despite the misery, she noticed something: these companies were processing massive amounts of transactional data but weren't using it to help merchants grow their businesses. Worse, customers had no idea what they were actually being charged. As a finance major and self-described "data nerd," Sunira believed the solution was obvious: build a subscription-based SaaS platform that offered transparent, flat-rate pricing and turned transaction data into actionable analytics.

She pitched the idea to her bosses. "It gets rejected. They laugh in my face," she recalls. "They thought it was the most ludicrous thing they've ever heard." She then pitched to 12 different payment processors. Rejected every time.

Undeterred, Sunira quit her job, moved back into her parents' house, and gave herself six months to prove the concept or accept defeat. She borrowed money from friends and family. Her first major breakthrough came through Starter Studio, a tech accelerator in Orlando, where she met her CTO and lead engineer—the core of her founding team.

Critically, Sunira didn't actually build her own product initially. Instead, she white-labeled an existing payment solution and started selling subscriptions. By the time the team presented at the accelerator's demo day, they already had **16,000 in monthly recurring revenue** despite having no product of their own. The team raised **$1.4 million** that night.

In those early days, growth came through an unconventional path. Sunira pitched Fat Merchant to every startup competition she could find, winning over $200,000 in prize money. More importantly, Fast Company published an article titled "Meet the Woman Trying to Change the Credit Card Industry," and it went viral. Her tiny two-person Orlando office was overwhelmed—their CRM crashed, their website crashed. "It was the greatest and worst thing that ever happened to us," she says. That viral moment clarified her ambition: "I finally saw that vision that this is going to be the next big payment processor in America."

Growth came entirely through inbound channels—paid advertising, SEO, content marketing, social media, and email retargeting. Sunira calls it a "multi-attribution digital marketing engine." She didn't do traditional outbound sales; instead, she built a robust lead generation machine focused on three key verticals: healthcare, professional services, and field services. These segments needed a platform that handled both card-present and card-not-present transactions—a gap that Square (card-present focused) and Stripe (card-not-present focused) had left open.

In the early years, Fat Merchant sold to anyone willing to buy. For three years, they didn't fire a single customer or say no to any revenue. This was a mistake. Sunira learned that her product was unsuited for restaurants and other highly commoditized verticals. By listening to customer NPS feedback and analyzing product heat maps to see which features customers actually used, she identified her true market: mid-market SMBs ($500k to $100M in revenue) in healthcare, professional services, and field services.

The biggest pivot came in 2018 when Sunira realized her true opportunity lay not just in direct-to-consumer sales, but in building an API for software companies. A partner asked if they could embed Fat Merchant's payment infrastructure. Initially skeptical, Sunira allowed it. That single partner onboarded 50 customers in one month—compared to the handful they acquired monthly through direct sales. "I'm like, wait, we've got the model wrong. One-to-one is great, but one-to-many is even greater." OmniConnect was born, and by 2021, Sunira projected the business would be 50-50 direct-to-consumer and partnership revenue.

Today, Fat Merchant processes **$5 billion annually** across **7,000+ customers** and **10,000+ users**. The company generates **$25M+ in ARR**, has raised **over $100 million in venture capital**, and recently completed a recapitalization with Greater Sum Ventures. US News ranks Fat Merchant in the top three credit card processors in America, neck-and-neck with Square.

Sunira has built a 130+ person company and, remarkably, did much of this while pregnant twice and raising two young children. Her journey from selling payment terminals out of her car trunk to scaling a billion-dollar payment platform has made her a vocal advocate for female founders. She launched the CEO School podcast and Instagram account, dedicated to helping the 98% of female founders who haven't yet reached $1M in revenue. Her core belief: "There's no such thing as a billion-dollar idea, only a billion-dollar execution."