Cartwheel Register accepts all major credit cards securely and swiper-free, with the device you and your staff already own.
Autoboard modernizes your ISO, improving merchant retention, organizational visibility, and profitability.
Portantli keeps your data secure while making it easier to sign up for the services you need and love.
Wide-ranging APIs and libraries for you to build the next killer app.
Cartwheel Raise & Cartwheel Campaign improve your donation ground game by instantly turning every supporter into a donation collector.
We believe that our amazing technology simply isn't enough. Built deep into our company's operations and products is our partnership with Good Returns, which empowers businesses to maximize their social impact without sacrificing their bottom line.Learn More
We love our community and support our local economy. We're adding jobs to the neighborhood and making it easier for businesses to grow. Our partnership with the Deep Ellum Community Association (DECA) helps share the good news that we're providing area businesses with 1% credit card transactions.Learn More
Our web and native apps, together with our patented computer vision and machine learning technologies, intersect with payments in many areas. We enable small businesses to sign up for and accept credit cards without any additional accessories – not even a credit card swiper, wholesale and retail ISOs to guide merchants through through the application process to underwriting decision, non-profits and political campaigns to accept donations in the field, and developers to rapidly build secure applications using our APIs.
We are headquartered in the eclectic and historic Deep Ellum neighborhood of Dallas, Texas, less than one mile from downtown in a light-filled, fully renovated, gigabit fiber connected, exposed wood and steel-framed warehouse. The building was the original home of National Welding and Grinding Company and is owned by our CEO's family -- so it really is our home.
Tantrum Street is joyfully committed to Good Returns, a network of businesses working together to solve the world's greatest problems by aligning existing market forces in ways that drive capital into sustainable social ventures. Through our apps and APIs, microloans to women entrepreneurs are funded by everyday transactions, which creates jobs and improves communities in the United States and abroad.
Backed by a team of executives, engineers, designers, directors, advisors, and investors who have worked for world-class organizations - including The White House, Texas Instruments, USA Today, Amazon, Idealab, Bank of America, Barclays, and the U.S. Department of Defense - the team brings deep experience in mobile, security, payments, and software with multiple public and private exits.
The world is changing faster and security is paramount. We’re helping lead to a more secure world by bringing next-generation security into your hands. Our holistic approach to security can be summed up in two words: mobile first.