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Sphere

Sphere

AI-powered global tax compliance engine for sales tax, VAT, and GST.

11
Open Roles
Founded
2021
Headquarters
San Francisco, CA
Latest Round
Series A
Est. Valuation
~$100M
Seed
Series A
Series B
Series C
Series D+

Investment Thesis

๐Ÿš€ What They Do

Sphere automates global sales tax, VAT, and GST registration, calculation, filing, and remittance. Integrates with over 100 tax authorities worldwide for end-to-end automation.

Customers include Runway AI, Sierra AI, Codeium, Lovable, ElevenLabs, Replit, and Deel. Average monthly revenue growth over 30%. Raised $21M Series A led by a16z.

๐Ÿ”ฅ The Problem

Software companies go global from day one but face a nightmare: tax compliance across 100+ jurisdictions requires manual teams and legacy tools built for offline commerce.

๐Ÿ› ๏ธ The Fix

TRAM, an AI-native tax engine, ingests and monitors global tax law automatically, classifying products across thousands of categories in days instead of the months legacy providers need.

โฐ Why Now

Global-first GTM is the new default, tax complexity is accelerating with VAT, GST, and e-invoicing mandates, and foundation models finally enable compliance-grade legal automation.

โœ… The Proof

Customers include ElevenLabs, Replit, Lovable, Windsurf, Deel, and HeyGen; 30%+ month-over-month revenue growth; migrating customers off legacy tax systems twice per week.

๐Ÿ‘ฅ The Team

Nicholas Rudder (CEO, ex-PwC/Macquarie, repeat YC founder) leads a team of 30+ engineers and tax experts recruited from Deel, Capbase, and Rippling.

Funding & Investors

$200M$150M$100M$50M$0
Founded
Seed
Aug 2022
Amount Raised: $4M
Seed
Aug 2022
Post-Money Valuation: $20M
Seed
$20M est. val
$4M raised
Series A
Nov 2025
Amount Raised: $21M
Series A
Nov 2025
Post-Money Valuation: $100M
Series A
$100M est. val
$21M raised
2021202220232024202520262027
Amount raisedEst. post-money valuationFounded
Series A$21MNov 2025
Lead: Andreessen Horowitz ยท Y Combinator, Felicis, 20VC
Seed$4MAug 2022
Lead: Felicis Ventures ยท Uncommon Capital

Headcount Growth

806040200
2
25
34
45*
2021202220232024202520262027
*Forecast assumes all 11 open roles are filled

11 Open Roles

Chief of Staff
19d agoOperations0
Compliance Lead
15d agoTax0
Founding Account Executive (Europe)
19d agoSales0
Founding CSM
8d agoCustomer Success0
Founding Forward Deployed Engineer
7d agoEngineering0
Founding Growth Lead
19d agoGrowth0
Founding Product Engineer
19d agoEngineering0
Lead AI Engineer
19d agoEngineering0
Senior Backend Engineer (Infrastructure)
19d agoEngineering0
Senior Full Stack Engineer
19d agoEngineering0