XBOW

XBOW

Automated web security benchmark solver

Overview

XBOW provides automated web security benchmarks using real-world scenarios with clear success criteria, such as flag capture. It works by generating Python programs that exploit specific vulnerabilities (like XML deserialization) and can deploy embedded bash scripts, while also debugging its own code and the target server environment. It stands apart by sourcing benchmarks from PortSwigger, PentesterLab, and public CTFs, focusing on practical situations rather than puzzles, and by solving challenges without needing pre-defined descriptions. The goal is to offer practical, automated web security practice and evaluation for users seeking realistic penetration testing experiences.

Significant Headcount Growth

About XBOW

Simplify's Rating
Why XBOW is rated
B-
Rated C on Competitive Edge
Rated A on Growth Potential
Rated C on Differentiation

Industries

Enterprise Software

Cybersecurity

Company Size

201-500

Company Stage

Series C

Total Funding

$272M

Headquarters

Seattle, Washington

Founded

1995

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Simplify's Take

What believers are saying

  • May 6, 2026 added $35 million extended Series C to $155 million total.
  • Accenture, NVentures, Samsung, and SentinelOne now fund and distribute XBOW globally.
  • Microsoft Marketplace, Security Store, and Security Copilot preview expand sales channels immediately.

What critics are saying

  • Microsoft can absorb XBOW's features into Security Copilot and Sentinel within one budget cycle.
  • Autonomous exploitation triggers buyer backlash after one false-positive-heavy incident or unauthorized test.
  • A public misuse event would freeze procurement and invite regulator scrutiny across the category.

What makes XBOW unique

  • XBOW's March 23, 2026 Microsoft Security Copilot integration embeds pentesting into defenders' daily workflow.
  • Its July 23, 2026 Bing disclosures proved zero-auth RCE discovery on Microsoft infrastructure.
  • The platform's 100-plus customers, including Moderna and Seznam, validate enterprise willingness to buy.

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Funding

Total Funding

$272M

Above

Industry Average

Funded Over

5 Rounds

Series C funding is usually for startups that are doing well and are looking for more money to fuel major growth, such as acquiring other companies, expanding into global markets, or launching new product lines. Investors typically include larger venture capital firms and private equity.
Series C Funding Comparison
Below Average

Industry standards

$50M
$40M
Figma
$50M
Medium
$62M
SeatGeek
$100M
Oura

Benefits

Company Equity

Remote Work Options

Career Growth

Growth & Insights and Company News

Headcount

6 month growth

23%

1 year growth

31%

2 year growth

72%
Premier Media Group
Jul 14th, 2026
Everett company topped region's 2Q VC deals; seattle-area total down from year ago.

Everett company topped region's 2Q VC deals; seattle-area total down from year ago. * john stearns * 21 hrs ago. Everett fusion-energy company Helion recorded the largest fundraising deal in the second quarter in the greater Seattle-Tacoma-Bellevue metropolitan area, according to the latest venture-capital report from Seattle-based PitchBook and the Washington, D.C.-based National Venture Capital Association. Helion in June announced a $465-million Series G investment round to accelerate commercial deployment of fusion, scale manufacturing capacity, and expand the company's ability to deliver clean electricity to customers. The latest deal valued the company at more than $15 billion. The Helion deal comprised almost a third of the $1.5 billion invested in greater Seattle area companies last quarter in about 78 deals. That was up from the roughly $1.2 billion raised in the first quarter in 77 deals, but far below the $2.3 billion from second quarter 2025 in about 100 deals, data showed. Nationally, $143.9 billion was invested last quarter in an estimated 5,039 deals, up from $85.8 billion in second quarter 2025, according to the PitchBook-NVCA Venture Monitor for 2Q 20206. Redmond-based Starcloud, which is developing space-based data centers, reported the greater Seattle area's second-largest deal in the second quarter, raising $170 million and taking its valuation past $1 billion. Seattle-based Xbow, which says it's an autonomous offensive security company redefining cyber defense for the AI era, raised $155 million in Series C financing in the quarter, rounding out the top three deals. Another space-industry company, Starfish Space, a satellite-servicing startup based in Tukwila, raised an estimated $115 million, the fourth-largest deal in the metro area last quarter. Seattle-based Gradial, an agentic AI company focused on transforming enterprise marketing operations, took the No. 5 spot in the quarter, raising $65 million. Other deals included Seattle-based Endurance Energy, which is developing subsea geothermal power, $54 million in a Series A, and Seattle-based Vedana Therapeutics, a biotechnology company developing next-generation therapies for migraine prevention, which reported a $46-million Series A. Commenting on the national VC landscape, Nizar Tarhuni, executive vice president of research and market intelligence at PitchBook, said in a statement, "SpaceX's IPO was the first of three potential trillion-dollar listings by US VC-backed companies in 2026, and what many want to view as the opening of an IPO window. The scale of these companies is their differentiating factor, though, largely boxing out the rest of VC from public markets." "The pipeline of companies in IPO registration remains low, and broad liquidity hasn't yet returned, leaving exit value very concentrated through Q2, and very likely through the rest of 2026," he continued Tarhuni. "The same concentration is showing up in how capital gets raised: nearly half of all H1 (first half 2026) capital commitments went to just three firms, and managers with track records pulled in more than nine out of every 10 dollars deployed into venture funds. LPs aren't spreading bets anymore - they're consolidating around track records and brands, a response to five years of thin distributions. This year's numbers will look like a recovery, but for most of the industry, it likely won't feel like one." In a separate statement, Bobby Franklin, president and CEO at NVCA, said, "The second quarter reinforced an emerging trend: capital is flowing back into American innovation with real force. Investment activity is picking up, fundraising is improving, and there are early signs the IPO market is beginning to reopen. AI continues to drive much of the market's momentum, even as investment and fundraising remain concentrated across a relatively small number of companies and funds. Healthier IPO and M&A markets will be critical to unlocking value, restoring liquidity, broadening access to capital, and supporting the next generation of American innovators across the country."

Xbow
May 7th, 2026
XBOW Secures Additional $35M from Strategic Investors, Including Select Customers and Ecosystem Partners

Accenture Ventures, DNX Ventures, Liberty Global, NVentures, Samsung, and SentinelOne Back Rising Demand for Continuous Offensive Security

ConnectWeb
May 6th, 2026
News & articles.

News & articles. At ConnectWeb Connectweb has a team of editors and researchers collating the most relevant information to you and your industry. All Directories' publications and sites provide a wealth of information for research or marketing, and are used by public and corporate libraries, educational institutions, government departments, corporations and SMEs across the country. You are here: Home News Access the latest company news and announcements distributed through Medianet. Technology & Innovation 06/05/2026 22:10 XBOW secures additional $35M from strategic investors, including select customers and ecosystem partners. Accenture Ventures, DNX Ventures, Liberty Global, NVentures, Samsung, and SentinelOne Back Rising Demand for Continuous Offensive Security SEATTLE-BUSINESS WIRE- XBOW, the leader in autonomous offensive security, today announced $35 million in additional Series C financing from investors Accenture Ventures, DNX Ventures, Liberty Global Tech Ventures, NVentures (NVIDIA's venture capital arm), Samsung Ventures, and SentinelOne S Ventures. The raise extends its previously announced $120 million Series C round, and highlights a broader shift: major enterprises are not just adopting XBOW's platform, but investing in it as they look to keep pace with increasingly sophisticated, AI-driven attacks. "We're learning in real time from teams operating at massive scale, and using that insight to build faster for defenders on the front lines," said Oege de Moor, Founder and CEO, XBOW. "The strongest alignment is when your customers are also in the trenches with you as investors and partners." XBOW now serves more than 100 customers worldwide, including several strategic investors in this round, alongside industry leaders like Moderna and Seznam. "The attacker's point of view is foundational to defense, but difficult to operationalize. XBOW changes this by surfacing exploitable and novel findings at machine speed," said Alex Krongold, Director, Corporate Development & Ventures, SentinelOne. "Each XBOW agent operates like an extension of our in-house red team, allowing us to scale offensive testing with speed and depth that was previously out of reach." Continuous Offensive Security at Machine Speed Until now, attackers were constrained by talent. Even the most sophisticated adversaries could not target every system, every version, all the time. With AI, attackers now operate continuously and at scale, probing every release, every environment, and every exposed surface. Traditional human-led penetration testing cannot keep pace with AI-driven attackers and modern development cycles. XBOW uses AI to find and exploit vulnerabilities in applications the way attackers do, running continuously instead of as a point-in-time pentest. It produces validated findings with a low false-positive rate, and can also confirm the exploitability of findings surfaced by other tools so security teams aren't chasing noise. As software ships faster, continuous offensive testing is becoming a core part of the security stack. XBOW lets customers test more often, cut validation backlogs, and proactively stay ahead of attackers rather than reacting to them. Fueling Global Expansion This latest financing further accelerates XBOW's go-to-market expansion and international growth strategy. With the deep expertise and regional network of DNX Ventures across Asia Pacific, combined with Samsung's role as a preferred reseller in South Korea, XBOW is expanding its distribution channels and partner ecosystem to accelerate adoption in this key global market. "We're seeing accelerating demand for XBOW as organizations look for continuous, intelligent security testing," said a Samsung Ventures America representative. "As a customer, we've experienced the platform's ability to surface real-world risks with speed and precision. XBOW stands out in a crowded market, and we're excited to now back this talented team as both a partner and investor." The company recently surpassed 250 employees and continues to scale its go-to-market, engineering, and operations teams to meet accelerating enterprise demand. As XBOW enters its next phase of growth, it remains focused on expanding its global footprint and enabling security teams to operate at attacker speed, continuously, safely, and at scale. About XBOW XBOW is the autonomous offensive security company redefining cyber defense for the AI era. Combining AI reasoning with offensive security workflows, the XBOW platform delivers expert-level security testing at machine speed. XBOW empowers security teams to transform from reactive to proactive defense at AI scale. For XBOW customers, autonomous offense is the best defense. Contact details: * images - screenshot_2026-05-05_at_4.50.43%e2%80%afpm.jpg download. ConnectWeb. ConnectWeb is Australia's leading publisher of biographical data, directories and specialist newsletters. With ConnectWeb you gain access to its comprehensive database of contacts and companies in media, government and associations. Connect with Connectweb.

Citybiz
May 6th, 2026
XBOW raises additional $35M as strategic investors back autonomous offensive security platform.

XBOW raises additional $35M as strategic investors back autonomous offensive security platform. May 6, 2026 XBOW, an autonomous offensive security company focused on AI-driven penetration testing, has raised an additional $35 million in Series C funding from a group of strategic investors, extending its previously announced $120 million Series C round and underscoring growing enterprise demand for continuous security validation tools. The new capital comes from Accenture Ventures, DNX Ventures, Liberty Global Tech Ventures, NVentures (NVIDIA's venture arm), Samsung Ventures, and SentinelOne S Ventures, with participation that includes both financial backing and active customer adoption. According to the company, several of the investors in this extension round are also customers of the XBOW platform, reflecting a trend in which enterprises are increasingly investing in cybersecurity tools they actively deploy within their own environments. XBOW develops an AI-native offensive security platform designed to continuously test applications for vulnerabilities by simulating attacker behavior at machine speed. The system runs ongoing penetration testing rather than relying on traditional point-in-time assessments, a model the company says is increasingly insufficient in modern software environments where applications are updated frequently and attack surfaces evolve continuously. "We're learning in real time from teams operating at massive scale, and using that insight to build faster for defenders on the front lines," said Oege de Moor, Founder and CEO of XBOW. "The strongest alignment is when your customers are also in the trenches with you as investors and partners." The company said its platform uses AI agents to identify and validate exploitable vulnerabilities across applications, helping security teams prioritize real threats and reduce the backlog of false positives that often result from conventional scanning and testing tools. XBOW currently serves more than 100 customers globally, including enterprise organizations such as Moderna and Seznam, alongside strategic investors participating in the latest round. Security professionals and investors alike have pointed to the increasing complexity of cyber threats as a driver of demand for automated offensive testing. As AI tools lower the barrier for attackers to probe systems at scale, enterprises are under pressure to adopt more continuous and proactive security approaches. Alex Krongold, Director of Corporate Development and Ventures at SentinelOne, said traditional penetration testing models are no longer sufficient to match the speed and scale of modern threats. "The attacker's point of view is foundational to defense, but difficult to operationalize," Krongold said. "XBOW changes this by surfacing exploitable and novel findings at machine speed. Each XBOW agent operates like an extension of our in-house red team." Unlike traditional security tools that often focus on static scanning or periodic audits, XBOW positions its platform as a continuous offensive testing layer that integrates into development and security workflows. The system is designed to validate whether vulnerabilities are actually exploitable, helping security teams prioritize remediation efforts more effectively. The company said its platform can also analyze findings generated by other security tools, verifying exploitability and reducing noise that typically slows down remediation processes. The new funding will support XBOW's international expansion and go-to-market efforts, particularly in Asia-Pacific markets where the company is leveraging partnerships with DNX Ventures and Samsung Ventures. Samsung is also acting as a reseller in South Korea, providing a distribution channel for enterprise adoption in the region. "We're seeing accelerating demand for XBOW as organizations look for continuous, intelligent security testing," said a representative from Samsung Ventures America. "XBOW stands out in a crowded market, and we're excited to now back this talented team as both a partner and investor." The company said it has grown to more than 250 employees as it scales engineering, sales, and operations functions to support enterprise demand. Its growth reflects broader trends in cybersecurity, where organizations are increasingly shifting toward automated, always-on security validation tools in response to faster development cycles and more sophisticated attack vectors. As enterprises move toward continuous deployment and AI-assisted software development, XBOW is positioning its autonomous offensive security platform as a foundational layer in modern cybersecurity stacks - designed to help organizations test systems at the same speed at which they are built and attacked.

Business Wire
May 6th, 2026
Accenture invests in XBOW to advance continuous offensive security testing and exposure management.

Accenture invests in XBOW to advance continuous offensive security testing and exposure management. New partnership will scale continuous, AI-driven security testing and exposure management to counter rising AI-driven cyber threats Accenture has made a strategic investment in XBOW, a leading autonomous cybersecurity testing platform powered by agentic AI. NEW YORK-(BUSINESS WIRE)-Accenture (NYSE: ACN) has made a strategic investment in XBOW, a leading autonomous cybersecurity testing platform powered by agentic AI. This investment, made through Accenture Ventures, will also establish a partnership between Accenture and XBOW to help clients proactively identify and mitigate exploitable risks in increasingly complex, AI-driven technology environments. The shift to agentic AI is reshaping both how enterprises operate and how they are attacked. According to the World Economic Forum's Global Cybersecurity Outlook 2026, produced in collaboration with Accenture, roughly two-thirds of organizations expect AI to have the most significant impact on cybersecurity in the year ahead, yet only 37% have processes in place to assess the security of AI tools before deployment. Enterprise applications and infrastructure remain among the least-tested layers of the stack, a gap that adversaries are now scaling AI to exploit. By combining the scale, speed, and pattern recognition of advanced AI with the creativity, judgement, and strategic thinking of human hackers, XBOW is well-suited to integrate with enterprise environments and find vulnerabilities before attackers can. To help do this, XBOW will be integrated into Accenture's Cyber.AI solution, which enables organizations to transform their security operations, moving from human-speed response to continuous, AI-driven cyber capabilities. "With advanced AI heightening the speed and severity of attacks on organizations, it's critical that enterprises be proactive with their defenses, including their penetration testing efforts," said Harpreet Sidhu, global cybersecurity lead at Accenture. "Accenture's investment in XBOW will help clients continuously test and validate their systems for security gaps and ensure they have the information and guidance needed to remediate these issues quickly." XBOW specializes in developing systems designed to emulate how real-world attackers identify and exploit weaknesses in software and infrastructure. Its proprietary platform autonomously maps application environments, probes for vulnerabilities, and attempts multi-step exploitation paths, producing evidence-based insights into enterprise security gaps that are exploitable by threat actors. This approach differs from traditional manual scanning methods by using agentic AI to focus not only on detection, but on recreating and testing the conditions under which vulnerabilities can be leveraged in realistic attack scenarios. "Partnering with Accenture will enable us to bring XBOW to a broader set of clients," said Oege de Moor, CEO of XBOW. "As new AI models make it easier to exploit gaps in enterprise defenses, organizations need to move faster. Together, we'll help make continuous offensive security a priority for security teams worldwide." The investment in XBOW aligns with Accenture's cybersecurity AI reinvention strategy and underscores the shift towards AI-augmented cybersecurity capabilities. By seamlessly integrating human expertise with AI agents, Accenture is reinventing enterprise protection and delivering a new class of managed cybersecurity services built for the AI era. The terms of the investment were not disclosed. About Accenture Accenture is a leading solutions and services company that helps the world's leading enterprises reinvent by building their digital core and unleashing the power of AI to create value at speed across the enterprise, bringing together the talent of our approximately 786,000 people, our proprietary assets and platforms, and deep ecosystem relationships. Our strategy is to be the reinvention partner of choice for our clients and to be the most client-focused, AI-enabled, great place to work in the world. Through our Reinvention Services we bring together our capabilities across strategy, consulting, technology, operations, Song and Industry X with our deep industry expertise to create and deliver solutions and services for our clients. Our purpose is to deliver on the promise of technology and human ingenuity, and we measure our success by the 360° value we create for all our stakeholders. Visit us at accenture.com. About XBOW XBOW is the autonomous offensive security company redefining cyber defense for the AI era. Combining AI reasoning with offensive security workflows, the XBOW platform delivers expert-level security testing at machine speed. XBOW empowers security teams to transform from reactive to proactive defense at AI scale. For XBOW customers, autonomous offense is the best defense. More News From Accenture ROME-( BUSINESS WIRE )-Accenture and the Women's Tennis Association have announced a new, multi-year partnership... NEW YORK-( BUSINESS WIRE )-Accenture has made an investment, through Accenture Ventures, in Netomi, a leading customer experience AI platform company... TOKYO-( BUSINESS WIRE )-NSK Limited and Accenture announced a strategic collaboration to drive the reinvention of NSK's business through AI and digital technology... Accenture. Release Summary Accenture has made a strategic investment in XBOW, a leading autonomous cybersecurity testing platform powered by agentic AI. 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