Sphere automates global tax compliance for modern businesses, turning VAT, GST, and sales-tax obligations into a continuous workflow rather than a cross-border bottleneck.
Products & media
Sphere raises a $21M Series A led by a16z
Cross Border Compliance Platform
An indirect-tax compliance platform that automates nexus monitoring, registration, calculation, collection, filing, remittance, and related cross-border obligations.
Tax Review and Assessment Model (TRAM)
An AI-native tax engine that collects, codifies, and monitors global tax law before approved determinations enter Sphere's calculation rules.
Team
Current Affiliates
2 people
Jobs
See all jobs for Sphere here.
Funding
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Data current as of November 18, 2025
Leads
Participating Firms
Angels