Top 10 SaaS startups in USA

Funding: $1.2B
Slack is the leading global collaboration hub that makes people’s working lives simpler, more pleasant and more productive.
MailChimp is the world’s leading marketing automation platform for small to medium-sized business. As the backbone for customer relationships, they provide sophisticated tools anyone can use to grow their business and be successful.
Funding: $911M
Zoom helps businesses and organizations bring their teams together in a frictionless environment to get more done.
Funding: $1B
UiPath designs and develops robotic process automation software. The platform offers foolproof development tool, automation of intricate processes, enhanced control, cloud and on-premise deployment, robust governance, and multiple robots on a single virtual machine.
Funding: $1.1B
SurveyMonkey, a leading global survey company, powers curious organizations to measure and act on the opinions that drive success.
Funding: $833M
Square is a merchant services aggregator and mobile payment company that aims to simplify commerce through technology.
Funding: $499M
Toast creates all-in-one point-of-sale and restaurant management platform for businesses in the food service and hospitality space.
Funding: $481.5M
TripActions takes the pain out of corporate travel management with a complete solution that helps businesses control costs and keep employees happy
Funding: $480.4M
Fuze is a cloud-based visual collaboration and personal telepresence service that enables the mobile enterprise to share ANY content, from ANY device, ANYwhere in the world.
Funding: $461M
Symphony transforms the way users communicate effectively and securely with a single workflow application.