Matt DuVall

Co-founder & CTO at Numeral ·

Largest round$100MNumeral · 2026

About Matt

Matt DuVall is the Co-founder and CTO of Numeral, a San Francisco-based company founded in 2022. Numeral provides an AI-powered platform for sales tax compliance, handling various aspects from nexus monitoring to filings and exemption certificate management. DuVall co-founded the company with Sam Ross, and he previously worked at Stripe and Notion. Numeral supports compliance in over 90 countries and has raised significant funding to expand its services.

Strengths: founder archetype

Technical builderDomain operator

Technical builder 3

Domain operator 3

Young outlier –

Capital allocator –

Quant / trader –

Repeat founder –

Researcher –

Community builder –

one sourced signal · hover a cell for it, click for the source

Why technical builder

Matt DuVall's background as an engineer at Stripe and Notion, followed by co-founding Numeral as CTO, strongly indicates a technical builder. His role in developing an AI-powered tax compliance platform also points to a deep understanding and operational involvement in the domain.

The signals behind it 3

Matt DuVall, CTO, who previously worked at Stripe and NotionTechnical builder · Domain operator
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Founded in early 2023 by Sam Ross, who serves as the CEO, and Matt DuVall, the CTO and a former engineer at Stripe and NotionTechnical builder · Domain operator
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Numeral co-founders Sam Ross (left), chief executive, and Matt DuVall, chief technology officer.Technical builder · Domain operator
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PATH · 5 MILESTONES

Matt DuVall | Stripe, Notion, then Numeral Co-founder

2022 → 2026·1phases·nowCO-FOUNDER & CTO

Every tag links its source.

Network

Backed by 3

IInsight PartnersLed Numeral's Series B+, 2026

MMayfield FundLed Numeral's Series B+, 2025

BBenchmarkLed Numeral's Series A, 2025

MDMatt DuVall

Built and backed 1

NNumeralCo-founder & CTO

Background

Previous Employment Stripe
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Previous Employment Notion
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Timeline, line by line 5

Numeral raised $100M (Series B+), led by Insight Partners.Sep 23, 2026
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Numeral raised $35M (Series B+), led by Mayfield Fund.Sep 18, 2025
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Numeral raised $18M (Series A), led by Benchmark.Mar 4, 2025
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Co-founded Numeral with Sam Ross2023
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Co-founded Numeral2022
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Team at Numeral

🐍 Jake MoffattCo-Founder / CTO@jakeonrails
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Sam RossCo-Founder & CEO@SpamRoss
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Kevin LiuCo-Founder
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Interviews and coverage

Numeral raises $100m Series C for AI sales tax complianceThe Next Web · Sep 23, 2026
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Numeral Raises $100 Million Series C Led By Insight Partners, Bringing Total Funding To $157 MillionPulse 2.0 · Sep 23, 2026
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Numeral Raises $100M Series C as Vertical AI Agent Play Hits Tax Complianceforkast.news · Sep 23, 2026
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Numeral raises $35m to expand AI-powered tax automationFinTech Global · Sep 19, 2025
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Numeral: $35 Million Series B Closed For AI-Based Sales Tax Compliance PlatformPulse 2.0 · Sep 22, 2025
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How this is researched

Researched from public pages: press, interviews, the company's site and the founder's own posts. Each source logo links the page that states the row; anything we couldn't source is left out. The archetype is our reading of that record, from a fixed set so founders can be compared. Updated Oct 12, 2026.