Palo Alto-based Whop has closed a $200 million Series D led by Sequoia Capital and Shopify Ventures at a $5.1 billion valuation, and plans to open offices in Europe and Colombia, Bloomberg reported.

2The company said the capital will fund its expansion abroad and research into payments and advertising. Tether invested $200 million in Whop in February at a $1.6 billion valuation, which means the company’s valuation has more than tripled in eight months.

Whop describes its customers as business operators, from product chiefs at high-growth startups to 16-year-olds running their first business. It gives them a gamified interface and an extensive API for distribution, business creation and money. The company says roughly 25,000 operators generate $550 million a month on the platform , with more than 50,000 other people earning monthly from services to those businesses.…