Antithesis

Antithesis

Private
Vienna, VirginiaEnterprise Softwarehttps://www.antithesis.com

Last Round

Series A

Dec 3, 2025

Est. Valuation

$215M

Total Funding Raised

$182M

Momentum Score

75 /100

Company Overview

Antithesis is a software development company that creates quality assurance tools designed to enable autonomous software testing by identifying reproducible bugs in controlled environments.

Sector

Enterprise Software

Verticals

DevOps & Containers, Quality Management, Cloud Infrastructure, Database Management, Blockchain Infrastructure

Business Model

B2B

Customer Profile

Subscription SaaS, Usage-Based SaaS

AI Layer

Application

Keywords

autonomous testingdeterministic simulationcontinuous reliabilityfuzz testingdeterministic replaybug reproductionfault injectionsoftware debuggingdistributed systems testingreliability engineeringQA automationDevOps toolsusage-based billing

Historical Pricing

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Caplight Momentum Score

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Antithesis Comps

Public and private peers based on sector, stage, and business model.

CompanyStatusEst. ValuationRev Multiple
OpenAIPrivate$86.0B~40x
CoherePrivate$5.0B--
Competitor 1Public$XX.XBXXx
Competitor 2Public$XX.XBXXx

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Antithesis Funding Rounds

Historical fundraising activity

RoundDateAmount RaisedValuationInvestorsSources
Series ADec 3, 2025
Early FundingFeb 13, 2025
SeedFeb 13, 2024

Key People

Founding team and executive leadership

Akshay Shah

Field CTO

Executive Team

Nick Lavezzo

Chief Operating Officer

Executive Team

Antithesis Investors

Notable investors and investment history

InvestorRounds
Potluck VenturesSeed
Jane StreetSeries A
Hyperion Capital PartnersSeries A
First InSeries A
First In VenturesSeries A
Teamworthy VenturesSeries A
Amplify PartnersSeries A, Early Funding, Seed

Market signals

Structured signals derived from secondary market and firmographic data.

  • Dec 3, 2025

    $105M round completed.

  • Feb 18, 2025

    Emerges from stealth after five years of development.

Antithesis Filings

SEC and related filings with document metadata.

TypedDateAmount OfferedAmount SoldFillingPagesDownload
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Antithesis Filings

SEC and related filings with document metadata.

Frequently Asked Questions

Common questions about Antithesis's valuation, stock price, and market status.

Firmographic Details

HeadquartersVienna, Virginia
Employee Range137
Year Founded2018
Last FundingDec 3, 2025

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