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Horizon3.ai

Brand

4.2
  • Overview
  • Salaries
  • People
  • Funding
  • Audience
  • News
  • Links
  • Insights
  • Jobs

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Company overview

The NodeZero® platform empowers your organization to continuously find, fix, and verify your exploitable attack surface. Reduce your security risk by autonomously finding weaknesses in your network, knowing how to prioritize and fix them, and immediately verifying that your fixes work. NodeZero delivers production-safe autonomous pentests and other key assessment operations that scale across your largest internal, external, cloud, and hybrid cloud environments. No required agents, no code to write, and no consultants to hire. We are a fusion of former U.S. Special Operations cyber operators, startup engineers, and formerly frustrated cybersecurity practitioners. We're committed to helping solve our common security problems: ineffective security tools, false positives resulting in alert fatigue, blind spots, "checkbox” security culture, cybersecurity skills shortage, and the long lead time and expense of hiring outside consultants.
Founded in 2019
San Francisco, California, USA
336 employees (18 in marketing)
www.horizon3.ai
81% recommend to a friend
84% positive business outlook

People

Founders and leadership

Anthony Pillitiere
Anthony Pillitiere
Co-Founder Horizon3.ai
At the company for 6 years 8 months
Snehal Antani
Snehal Antani
Co-Founder & CEO
At the company for 7 years

Marketing leadership

Andres Botero
Andres Botero
Chief Marketing Officer
At the company for 10 months
Lauren Saenz
Lauren Saenz
Head of Field Marketing
At the company for 4 years 11 months
Jesse Rodriguez
Jesse Rodriguez
Director, Marketing Campaigns & Operations
At the company for 8 months
Amanda Baker
Amanda Baker
Sr. Director, Customer Marketing
At the company for 8 months

Hiring contacts

Emily Zahuta
Emily Zahuta
Senior Director, Talent Acquisition
At the company for 1 year 11 months
Mendy Slaton
Mendy Slaton
Senior Director, People Operations
At the company for 11 months

Hiring activity

Open marketing jobs over time

20 open now

Headcount trend

Company growth over the last 12 months

Funding

Total funding

$178.5M

Last raise

Series Unknown, 2 months ago

Funding history

Jan 2026

Venture Round Horizon3.Ai

May 2025

Series D Horizon3.Ai · $100M

Aug 2023

Series C Horizon3.Ai · $40M

Oct 2021

Series B Horizon3.Ai · $30M

Feb 2021

Series A Horizon3.Ai · $5M

Audience

Monthly website visitors
82.6K
Month over month-2.8%
Quarter over quarter+9.2%
Top sourceDirect (47.9%)
Ad budget per month$76.6K
Average search rank49.6
Traffic source mix
Direct
47.9%
Search
41.7%

News

Horizon3.ai Ranked 3rd Fastest-Growing Company in North America on the 2025 Deloitte Technology Fast 500
Nov 19, 2025 • Bluefield Daily Telegraph
Horizon3.ai Ranked 3rd Fastest-Growing Company in North America on the 2025 Deloitte Technology Fast 500™
Nov 19, 2025 • Business Wire
Horizon3.ai Enhances NodeZero® Platform to Empower Enterprises to Prioritize Their Most Business-Critical Cyber Risks
Nov 18, 2025 • Business Wire

Links

www.horizon3.aiLinkedInCrunchbaseX (Twitter)
Glassdoor

Loading insights...

Headcount +76.7% year over year

Jan 2020

Seed Round Horizon3.Ai · $3.5M

Referral
6.7%
Social
2.6%
Paid referral
1.1%

LinkedIn followers

Follower count and growth

Total followers

26.3K

12-mo growth

+73.2%

Monthly growth

+3.7%

Salaries

Typical salary range

$157,250 – $166,500

/ yr

Help build salary transparency at Horizon3.ai

Share your compensation anonymously to see full data.

Contribute

Open positions20 open marketing positions

Horizon3 logo

Executive Assistant, GTM

Horizon3

USA (Remote)

$130K/yr - $150K/yrIn-houseFull-time
22 hrs ago
Horizon3 logo

Staff Account-Based Marketing Manager

Horizon3

USA (Remote)

$169K/yr - $220K/yrIn-houseFull-timeSenior level6+ years exp.
22 hrs ago
Horizon3 logo

Senior Product Marketing Manager, Internal & Cloud Pentesting

Horizon3

USA (Remote)

$144K/yr - $180K/yrIn-houseFull-timeSenior level8+ years exp.
2 weeks ago
Horizon3 logo

Director, Product Marketing

Horizon3

USA (Remote)

$232K/yr - $260K/yrIn-houseFull-timeDirector/executive
2 weeks ago
Horizon3.ai logo

Senior Channel Field Marketing Manager

Horizon3.ai

USA (Remote)

$145K/yr - $189K/yrIn-houseFull-timeSenior level8+ years exp.
6 weeks ago
Horizon3 AI logo

Senior HR Business Partner, GTM

Horizon3 AI

USA (Remote)

$150K/yr - $185K/yrIn-houseFull-time
2 months ago
View all 20 jobs

Horizon3.ai insights

Company and marketing-team signals from saved company data and employee profiles. Use this before you apply, interview, or negotiate.

Founded
2019
Headquarters
San Francisco, California
Employees
201-500
76.7% growth last 12mo
Marketing team
18
5% of company
31 saved employee profiles are linked to this company.

Company stability and risk

Shows a quick risk view from growth, funding age, and news.

Main result
Low risk
Series C–like · Growing 76.7% last 12 months · Mid-stage · Recently funded
Trend
2021-09-27 -> 2025-12-15
Headcount (12 months)
+76.7%
Last funding round
2 months ago
Negative news (120 days)
0
Risk score0/7

Website traffic

Shows traffic size, change, and traffic sources.

Monthly website visitors
82.6K
Month over month-2.8%
Quarter over quarter+9.2%
Top sourceDirect (47.9%)
Traffic source mix
Direct
47.9%
Search
41.7%
Referral

Competitors and search

Shows competitors and key search metrics in one view.

Main result
178 competitor sites
Search traffic: 2.4K organic clicks / 404 paid clicks
Organic competitors
0
Paid competitors
5
Keyword change
+612
Ad budget per month
$76.6K
Average search rank
49.6
Paid competitors5

G2 quick view

Shows G2 rating and review trend.

Main result
10 / 5
1 reviews saved
Reviews month over month
—
Reviews quarter over quarter
—
Reviews year over year
—

LinkedIn followers

Shows follower count and growth.

LinkedIn followers

Follower count and growth

Job openings

Shows open jobs, growth, and role changes.

Main result
7 open jobs
Open jobs trend: —
Trend

Gartner

Shows Gartner reviews and listed products.

Main result
98 Gartner reviews
Horizon3.ai is a fusion of former U.S. Special Operations cyber operators, startup engineers, and formerly frustrated cybersecurity practitioners. We're committed to helping solve our common security problems: ineffective security tools, false positives resulting in alert fatigue, blind spots, "checkbox” security culture, cybersecurity skills shortage, and the long lead time and expense of hiring outside consultants. Founded in 2019, Horizon3.ai is headquartered in San Francisco, CA.
Listed products
1
Reviews
98
Employee range
51 - 200

Marketing team size

Shows saved marketing team size.

18
5% of the company • 31 saved marketing people

First hire or larger team

Shows if this looks like one hire or a bigger team.

Looks like larger team
Based on saved marketing team size: 18.

Glassdoor ratings

Shows saved Glassdoor ratings.

Glassdoor ratings
Overall rating
4.2 / 5
Work-life balance
4 / 5
Culture
4 / 5
Diversity & inclusion
4 / 5
Recommend to a friend
81%
Positive business outlook
84%

Funding

Shows saved funding data.

Total funding
$178.5M
Last raise
Series Unknown
2 months ago
Funding details
Amount raised
$178.5M
Last round
Series Unknown
Last fundraise
2 months ago

News

Shows saved company news.

Horizon3.ai Ranked 3rd Fastest-Growing Company in North America on the 2025 Deloitte Technology Fast 500
Nov 19, 2025 • Bluefield Daily Telegraph
Horizon3.ai Ranked 3rd Fastest-Growing Company in North America on the 2025 Deloitte Technology Fast 500™
Nov 19, 2025 • Business Wire
Horizon3.ai Enhances NodeZero® Platform to Empower Enterprises to Prioritize Their Most Business-Critical Cyber Risks
Nov 18, 2025 • Business Wire
6.7%
Social
2.6%
Paid referral
1.1%

Total followers

26.3K

12-mo growth

+73.2%

Monthly growth

+3.7%

2023-07-01 -> 2026-02-01
Open jobs growth
—
Biggest role change
—
Latest open role
SkillBridge (Transitioning Military), Engineering