Xbow
Cybersecurity AI · Penetration Testing
$155Mtotal raised · 2 rounds on record
3open roles
$35Mlatest round · Venture round · May 2026 · 6 mo ago
2backers · North Zone, Sequoia Capital
Overview
XBOW is an autonomous offensive security platform that simulates real attacks to find and validate vulnerabilities in your applications. Get a demo today.
Key facts
As of Nov 13, 2026, Alion lists 3 open roles at Xbow. Xbow is headquartered in Seattle, United States. It was founded in 2023. It has raised $155M in 2 funding rounds. The latest round is Venture - Series Unknown of $35M, announced in 2026.
- Open roles
- 3Job postings Alion tracks, as of Nov 13, 2026
- Headquarters
- Seattle, United StatesAlion company profile, updated Nov 13, 2026
- Founded
- 2023Alion company profile, updated Nov 13, 2026
- Employees
- 50+Alion company profile, an estimated range
- Total raised
- $155MSum of 2 equity rounds Alion knows
- Latest round
- Venture - Series Unknown · $35M · May 6, 2026Press report · xbow.com
- Visa sponsorship, United States
- 2 · H-1B filings in 12 monthsUS Department of Labor · latest filing Jun 15, 2026
- Technologies in its job postings
- 25Named in its job postings
Official records
Funding and backers
Total raised
$155M
2 rounds on record
Latest round
$35M
Venture round · May 2026 · 6 mo ago
Team
51-200
employees, estimated range
Hiring now
3
open roles
Backers
2
North Zone, Sequoia Capital
The money's age
Fresh money
6 months since the last round · hiring slowed
Momentum
35/100
in the news, fresh money
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
May 6
Raised a round Venture round $35M · XBOW-Website
Mar 18
Raised a round Venture round $120M · XBOW-Website
Jul 21, 2025
On the Hacker News front page Agents built from alloys · 181 points
2023
Founded
Tractionpublic signals, read monthly
Web presence
top 0.3%
of 133.2M domains by links, Common Crawl
Hacker News stories
37
best: 284 points
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Venture round | May 2026 | $35M | — | XBOW-Website |
| Venture round | Mar 2026 | $120M | — | XBOW-Website |
Registers and programsofficial lists and records that name the company
| Legal entity | XBow Holding Inc. | SEC Form D |
Founders and leadersfrom filings, registers and the company's site
Oegerikus de MoorExecutive Officer, DirectorSEC Form D
Backed byfrom the funds' portfolios and accelerator catalogs
Investors in similar startupsfunds that back the companies most like this one
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Jobs
$100k – $350k per year · Equity · Remote (EU, Europe, United States, Argentina) · Full-Time
Go
JavaScript
Kotlin
TypeScript
Node JS
PostgreSQL
AI/ML
Copilot
Frontend
GraphQL
React.js
DevOps
Rest API
Terraform
AWS
Apply
$100k – $350k per year · Equity · Remote (Austria, United States, United Kingdom, Argentina, Brazil) · Full-Time · Master's Degree
TypeScript
Copilot
AI Agents
LLM
Machine Learning
Apply
≈ $81k – $171k per year (Estimated) · In office · Full-Time · 8+ years exp · United Kingdom
Apply
Visa sponsorship
2
H-1B filings in 12 months
$253k
Median offered salary
0
Open roles in United States
Who they sponsor
Financial managers
1
Software developers
1
In the register as XBOW USA INC, Seattle, WA
Other sponsors in the same field
Straiker 
ZeroPath 
Proofpoint 
Abnormal AI
Alert me
US Department of Labor · latest filing Jun 15, 2026 · Visa details by country
Growth
Hiring Momentum
56/100
Growing
Open positions
3
0 opened / 2 closed in 30 days
Median time-to-fill
34 days
faster than 40% of the market
ATS activity
Every ~6 hours
Today
Hiring Dynamics
+100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Legal
38% ▼
Security
25% ▼
Backend
13% ▲
Administrative
13% ▼
Communications
13% ▼
Activity Timeline
Added JavaScript to stack
Oct 2026
Added Rest API to stack
Oct 2026
Added React.js to stack
Oct 2026
Added PostgreSQL to stack
Oct 2026
Added Node JS to stack
Oct 2026
Added GraphQL to stack
Oct 2026
Added Machine Learning to stack
Sep 2026
Added Threat Modeling to stack
Sep 2026
Added IAM to stack
Sep 2026
Added GCP to stack
Sep 2026
Added SOC 2 to stack
Sep 2026
Added ISO 42001 to stack
Sep 2026
People
Oegerikus de Moor
Executive Officer, Director
Ron Gabrisko
Director
Konstantine Buhler
Director
Apoorv Agrawal
Director
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data
Tech stack
Technologies named in job postings at Xbow over the last 12 months, by layer, with the share of postings for each.
Technologies in use
25
Postings analysed
8
Stack modernity
82/100AI adopter
Languages
TypeScript
Go
Kotlin
Node JS
Frameworks & libraries
React.js
Databases
ElasticSearch
OpenSearch
PostgreSQL
Cloud & platforms
AWS
Azure
GitHub
Kubernetes
AI & ML
LLM
Sign in to see how your skills match this stack
Sign In
Full Xbow tech stack
25 technologies · by team · pay by technology · changes · similar stacks
Connections
List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors
North ZoneVia a fund
Sequoia CapitalVia a fund
412 portfolio companies
Click a company to open it. Dashed lines are likely connections. The second step of the network is part of the Pro plan.
Owner
Same company
Same group
Likely
Shared investors
News
Xbow spent $40K on AI and cracked Google Chrome wide open
With the now-patched exploit chain they discovered, they could have taken over one billion Windows machines running Chrome.
Read more
Report
XBOW Built a Chrome Full-Chain Exploit Affecting a Billion Users in Six Days XBOW
XBOW recently discovered and built a Chrome full-chain exploit affecting an estimated billion users globally.
Read more
Report
Zero to Calc in Six Days: Inside XBOW's Chrome Full Chain
Google awarded this chain the first $250,000 Chrome full-chain reward under the VRP rules introduced in April 2026. This post is about the exploit.
Read more
Report
XBOW Rewarded for Exploit Affecting a Billion Users
SEATTLE, October 13, 2026--XBOW, the autonomous offensive security company, today announced that its platform has earned a $250,000 reward from Google
Read more
Report
No Time to Pwn: CVE-2026-72018 Linux Kernel LPE XBOW
XBOW discovered CVE-2026-72018, an out-of-bounds write in the Linux kernel's SMC-D driver, and turned one weak primitive into a working root exploit.
Read more
Report
XBOW (@Xbow) on X
This just in: XBOW's Native Team has claimed the first Chrome Full Chain Exploit Bonus this year. Only four will be awarded in 2026.
Read more
Report
Bing Images RCEs: How XBOW Found Three Critical Flaws XBOW
See how XBOW autonomously uncovered three critical Microsoft RCEs by tracing ordinary image-processing and file-upload paths to proven code execution.
Read more
Report
Mythos and GPT-5.5: What AI Vulnerability Detection Misses XBOW
Mythos and GPT-5.5 can uncover vulnerabilities at scale, but effective security requires coverage, validation, safety, and enterprise-ready testing.
Read more
Report
Show more news
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
Seattle
United States
HQ
50-200 est. staff
How to cite this page
Alion, "Xbow: key facts", as of Nov 13, 2026. https://alion.io/company/xbow
These figures are published under a free licence. You may reuse them, including commercially, as long as you credit Alion and link back to this page. CC BY-SA 4.0