Horizon3
Vulnerability Management · Cybersecurity AI
$390Mtotal raised · 3 rounds on record
193open roles
$260kmedian advertised pay
$250Mlatest round · Series E · Aug 2026 · 3 mo ago
Overview
Horizon3.ai is a cybersecurity company that specializes in autonomous threat detection and proactive security validation. Its flagship platform, NodeZero, acts as an autonomous penetration testing solution that continuously discovers, tests, and verifies exploitable vulnerabilities across an organization's internal and external infrastructure. By simulating real-world attacker tactics, Horizon3.ai enables IT and security teams to fix critical security gaps before adversaries can exploit them.
Key facts
As of Nov 12, 2026, Alion lists 193 open roles at Horizon3. Horizon3 is headquartered in San Francisco, United States. It was founded in 2019. It has raised $390M in 3 funding rounds. The latest round is Series E of $250M, announced in 2026. The median pay stated in its open roles is $260k, across 160 postings that state pay.
- Open roles
- 193Job postings Alion tracks, as of Nov 12, 2026
- Headquarters
- San Francisco, United StatesAlion company profile, updated Nov 12, 2026
- Founded
- 2019Alion company profile, updated Nov 12, 2026
- Employees
- 200+Alion company profile, an estimated range
- Total raised
- $390MSum of 3 equity rounds Alion knows
- Latest round
- Series E · $250M · Aug 3, 2026Press report · forbes.com
- Median advertised pay
- $260kPay stated in 160 open postings
- Technologies in its job postings
- 226Named in its job postings
How Horizon3 hires
Truth index
B 81/100
Median time to fill
34 days
Ghost roles
0%
Stale roles
77%
Reposted roles
0%
Horizon3 scores B on the Alion truth index (A is best, E worst), measured over 34 open roles re-checked against its own hiring board: 0% look like ghost listings, 77% have gone stale and 0% are the same role posted again. Its roles close in a median of 34 days. It measures how much of what this employer publishes turns into a real, finite search - not the employer as a workplace. How the index is computed
Funding and backers
Total raised
$390M
3 rounds on record
Latest round
$250M
Series E · Aug 2026 · 3 mo ago
Team
201-500
employees, estimated range
Hiring now
189
+106 posted in 30 days
Backers
5
SignalFire, Craft Ventures
The money's age
Fresh money
3 months since the last round · and hiring
Momentum
82/100
hiring for its size, a new city, in the news, fresh money, rising traction
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
Nov 5
First role in Sweden Senior Sales Engineer, Nordics
Nov 4
First role in Spain Enterprise Account Executive - Central Spain
Nov 2
First role in Norway Enterprise Account Executive, Norway
Oct 28
First role in South Africa Enterprise Account Executive, South Africa
Oct 22
First role in Australia Sr. Channel Field Marketing Associate, APJ
Oct 5
First role in Canada Sales Engineer, Eastern Canada
Sep 2026
Formerly Horizon3.ai (horizon3ai.com)
Sep 10
First role in United Arab Emirates Senior Channel Field Marketing Manager, META
Aug 3
Raised a round Series E $250M
Jul 20
First role in Netherlands Commercial Account Executive, France
Jul 8
First role in Japan Enterprise Account Executive, Japan
Jun 10, 2025
Raised a round Venture round $100M · SiliconANGLE
Jun 11, 2024
New executive Horizon3.ai Appoints Jill Passalacqua as Chief Legal Officer · sdxcentral.com
Aug 11, 2023
Raised a round Series C $40M · led by Craft Ventures · Pulse 2.0
2019
Founded
Tractionpublic signals, read monthly
Web presence
top 0.3%
of 133.2M domains by links, Common Crawl
Hacker News stories
9
best: 13 points
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Series E | Aug 2026 | $250M | — | forbes.com |
| Venture round | Jun 2025 | $100M | — | SiliconANGLE |
| Series C | Aug 2023 | $40M | Craft Ventures lead, Signal Fire | Pulse 2.0 |
Registers and programsofficial lists and records that name the company
| Legal entity | Horizon 3 AI, Inc. | SEC Form D |
Founders and leadersfrom filings, registers and the company's site
Snehal AntaniExecutive Officer, DirectorSEC Form D
Anthony PillitiereExecutive Officer, DirectorSEC Form D
Antani SnehalExecutive 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
$176k – $230k per year · Remote (United States) · Full-Time · 8+ years exp · Bachelor's Degree
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CIS Benchmarks
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$200k – $250k per year · Remote (United States) · Full-Time · 3+ years exp · Bachelor's Degree · New York
Salesforce
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$200k – $250k per year · Remote (United States) · Full-Time · 3+ years exp · Bachelor's Degree
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$140k – $175k per year · Remote (Canada) · Full-Time · 3+ years exp · Bachelor's Degree
Salesforce
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$260k – $280k per year · Equity · Remote (United States) · Full-Time
Python
Go
GCP
Azure
AWS
Apply
Apply
$195k – $230k per year · Equity · Remote (United States) · Full-Time · 5+ years exp
Python
SQL
Akamai
Cybersecurity
ModSecurity
MITRE ATT&CK
OWASP Top 10
Cloudflare WAF
AWS WAF
OWASP
Apply
Remote (Brazil) · Full-Time · 3+ years exp · Bachelor's Degree
Salesforce
Apply
Hybrid · Full-Time · 3+ years exp · Bachelor's Degree · Mexico City
Salesforce
Apply
$232k – $274k per year · Equity · Hybrid · Full-Time · 10+ years exp · New York · San Francisco
MITRE ATT&CK
SIEM
Apply
$250k – $280k per year · Equity · In office · Full-Time · 8+ years exp
Apply
$200k – $250k per year · Remote (United States) · Full-Time · 3+ years exp · Bachelor's Degree · Las Vegas
Salesforce
Apply
Salary insights
Compensation ranges based on this company's open jobs
Median
$260k
Typical range
$84k – $450k
Open positions
160
158
Jobs
Junior
4.4%
Middle
8.2%
Senior
53.8%
Staff
24.7%
Principal
2.5%
Architect
6.3%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Junior | 7 | $150k | $90k – $186k |
| Middle | 13 | $250k | $140k – $369k |
| Senior | 85 | $235k | $84k – $380k |
| Staff | 39 | $265k | $145k – $320k |
| Principal | 4 | $293k | $280k – $300k |
| Architect | 10 | $358k | $256k – $450k |
Highest paying role
Director of Enterprise Sales, Northeast
$450k
Normalized to USD per year
All salaries at Horizon3
By role, level and city, against the market · 160 jobs with pay
Growth
Hiring Momentum
91/100
Scaling fast
Open positions
193
100 opened / 45 closed in 30 days
Median time-to-fill
35 days
faster than 38% of the market
ATS activity
Every ~6 hours
Today
Hiring Dynamics
+2288%
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.
Sales
33% ▼
Backend
11% ▲
Marketing
10% ▲
Solutions
9% ▼
Leadership
7% ▲
Product
4% ▲
Actively hiring for Sales (+37 in 30 days)
Activity Timeline
New location: Sweden
Nov 2026
New location: Norway
Nov 2026
Added SQLAlchemy to stack
Nov 2026
Added Pytest to stack
Nov 2026
Added Mypy to stack
Nov 2026
Added Azure AKS to stack
Nov 2026
Added Google GKE to stack
Nov 2026
Added Unix to stack
Nov 2026
Added Oracle to stack
Nov 2026
Added MS SQL to stack
Nov 2026
Added ElasticSearch to stack
Nov 2026
Added Reinforcement Learning to stack
Nov 2026
People
Snehal Antani
Executive Officer, Director
Anthony Pillitiere
Executive Officer, Director
Antani Snehal
Executive Officer, Director
Ilya Kirnos
Director
Michael Robinson
Director
Lila Tretikov
Director
Nicholas Warner
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 Horizon3 over the last 12 months, by layer, with the share of postings for each.
Technologies in use
226
Postings analysed
149
Stack modernity
78/100AI adopter
Languages
Python60%
SQL32%
Go25%
TypeScript18%
Frameworks & libraries
OpenTelemetry6%
React.js3%
Flink3%
Impacket2%
Databases
PostgreSQL27%
Neo4j26%
TimescaleDB3%
Amazon Neptune2%
Cloud & platforms
AWS57%
Kubernetes34%
Azure32%
GCP30%
AI & ML
LLM12%
Claude5%
Gemini2%
ChatGPT1%
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Full Horizon3 tech stack
226 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
NightDragonVia a fund
Ridge VenturesVia a fund
Craft VenturesVia a fund
SignalFireVia a fund
NEAVia a fund
672 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
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Horizon3 Announces Integration with CrowdStrike Falcon Next-Gen SIEM
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Show more news
Offices
Where the company hires and what each office is for
Cities
9
Hiring now
9
Countries
5
Busiest office
San Francisco
Loading the map
Headquarters
Builds here
Office with open vacancies
Tap a pin for the office
San Francisco
United States
HQ
10 open roles 10 posted in 90 days 10-50 est. staff $259k Avg Salary
hires for Product, Design, HR
Amsterdam
Netherlands
Sales office
14 open roles 16 posted in 90 days 7% engineering 14% remote 50-200 est. staff $196k Avg Salary
hires for Sales, Support, Analytics
New York
United States
Sales office
14 open roles 14 posted in 90 days 29% remote 50-200 est. staff $276k Avg Salary
hires for Product, Sales, Design
Washington
United States
Sales office
13 open roles 16 posted in 90 days 15% remote 50-200 est. staff $258k Avg Salary
hires for Sales, Solutions, Product
Chicago
United States
Sales office
8 open roles 7 posted in 90 days 25% remote 50-200 est. staff $191k Avg Salary
hires for Sales, Solutions
Singapore
Singapore
Sales office
3 open roles 9 posted in 90 days 67% remote 10-50 est. staff
hires for Marketing, Solutions
Mexico City
Mexico
Sales office
1 open roles 1 posted in 90 days 1-10 est. staff
hires for Sales
Sydney
Australia
1 open roles 1 posted in 90 days 1-10 est. staff $84k Avg Salary
hires for Marketing
Melbourne
Australia
1 open roles 1 posted in 90 days 1-10 est. staff $84k Avg Salary
hires for Marketing
How to cite this page
Alion, "Horizon3: key facts", as of Nov 12, 2026. https://alion.io/company/horizon3
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