About Antithesis
Antithesis is a company based in Vienna (United States) founded in 2018 by Will Wilson. Antithesis has raised $182 million across 3 funding rounds from investors including Spark Capital, Amplify Partners and Tamarack Global. The company has 37 employees as of December 31, 2023. Antithesis operates in a competitive market with competitors including Launchable, mabl, Diffblue, BlinqIO and Autify, among others.
- Headquarter Vienna, United States
- Employees 37 as on 31 Dec, 2023
- Founders Will Wilson
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Sectors
Technology
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Email
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Phone
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Website
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Social
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- Legal Name Antithesis Operations Llc
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Annual Revenue
Not available
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Net Profit
Not available
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EBITDA
Not available
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Total Equity Funding
$182 M (USD)
in 3 rounds
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Latest Funding Round
$105 M (USD), Series A
Dec 03, 2025
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Investors
Spark Capital
& 8 more
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Employee Count
37
as on Dec 31, 2023
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People of Antithesis
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Funding Insights of Antithesis
Antithesis has successfully raised a total of $182M across 3 strategic funding rounds. The most recent funding activity was a Series A round of $105 million completed in December 2025. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
Investors in Antithesis
Antithesis has secured backing from 9 investors, including venture fund, institutional, and angel investors. Prominent investors backing the company include Spark Capital, Amplify Partners and Tamarack Global.
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Technical founders are supported through early-stage venture capital investments.
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Private equity firm focused on space and digital assets sectors
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Venture capital firm focused on early-stage biotech companies
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Investor details for Antithesis
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Investments & Acquisitions by Antithesis
Investment portfolio details for Antithesis
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Financial Statements - Antithesis
Detailed financials for Antithesis
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Antithesis Comparisons
Peer comparison for Antithesis
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Competitors of Antithesis
Antithesis operates in a dynamic and competitive business environment, facing competition from various established players and emerging companies in the market. The competitive landscape includes prominent companies such as Launchable, mabl, Diffblue, BlinqIO and Autify, among others.
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AI platform is used for continuous software testing and prioritization.
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Automated functional testing is enabled through machine learning.
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AI-based automated testing and code automation solutions are provided.
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An AI-powered platform for automated software testing is offered.
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AI-powered platform for software testing automation is provided.
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AI-driven automated testing for application performance and security is provided.
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Detailed competitors of Antithesis
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Latest news on Antithesis
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Frequently Asked Questions about Antithesis
Antithesis was founded in 2018 and raised its 1st funding round 6 years after it was founded.
Antithesis is headquartered in Vienna, United States.
Will Wilson is the current CEO of Antithesis. They have also founded this company.
Antithesis is a funded company, having raised a total of $182M across 3 funding rounds to date.
As of Dec 31, 2023, the latest employee count at Antithesis is 37.
Provider of autonomous software testing platform for bug detection and reproduction. This platform offers deterministic testing, enabling perfect reproducibility of found bugs, regardless of complexity. It explores software in novel ways, uncovering unknown unknowns not found through traditional testing methods. The platform facilitates easier debugging by providing a deterministic environment for analysis and reproduction of error paths. It also allows for continuous testing of new software versions, leading to quicker bug identification and resolution. This reduces time spent on manual testing and improves overall software quality and release cycles.
Antithesis's top competitors include Diffblue, Launchable and mabl.
Antithesis has 9 investors. Key investors include Spark Capital, Amplify Partners, Tamarack Global, First In Ventures, and Howard Lerman.