San Francisco, United States
Sphere, founded in 2021, is transforming the global market by addressing the often-complex landscape of cross-border tax compliance through automation. The company's slogan, "Making the world one market. Starting with automating tax compliance.", reflects its mission to simplify the compliance process for the $200T+ in goods and services transacted internationally each year.
Using a robust AI engine, Sphere interprets tax laws from over 190 countries, initially addressing sales tax, VAT, and GST requirements. This innovative solution is resonating in the market, evidenced by significant month-over-month growth and a diverse client base including companies like ElevenLabs, Replit, Deel, and Linktree.
Substantial backing from prominent investors such as a16z, Felicis Ventures, and Y Combinator, along with early support from founders of major firms like Lyft and Flexport, further solidifies Sphere's position. The company secured a $21M Series A investment as of 19 November 2025, positioning it for continued expansion in the EdTech, Education, and Human Resources sectors from its United States headquarters.
