News Summary

Sphere, originally an ed-tech marketplace, has pivoted to focus on AI-native tax compliance software and successfully raised a $21 million Series A funding round led by Andreessen Horowitz (a16z). Co-founders Nicholas Rudder and Adrian Sarstedt launched Sphere to simplify tax compliance for companies expanding globally. Sphere’s platform automates registration, calculation, filing, and remittance obligations, integrating with major billing platforms like Stripe to assess global tax exposure. The company is one of only three tax vendors globally with native integration to Stripe’s Billing and Checkout products. The funding will enable Sphere to enhance its infrastructure, expand its AI and engineering team, and build an international sales team. Other investors include YC and Felicis Ventures.