Illumio | Company Profile, Culture & Jobs

Company overview

Illumio is the leader in ransomware and breach containment, redefining how organizations contain cyberattacks and enable operational resilience. Powered by an AI security graph, our breach containment platform identifies and contains threats across hybrid multi-cloud environments – stopping the spread of attacks before they become disasters. Recognized as a Leader in the Forrester WaveTM for Microsegmentation, Illumio enables Zero Trust, strengthening cyber resilience for the infrastructure, systems, and organizations that keep the world running.

Founded in 2013

Sunnyvale, California, USA

837 employees (63 in marketing)

www.illumio.com

79% recommend to a friend

76% positive business outlook

People

Marketing leadership

Kristy Panarelli (Pauloski), MBA

Senior Partner Marketing Manager

At the company for 4 months

Hiring activity

Open marketing jobs over time

15 open now

Headcount trend

Company growth over the last 12 months

Funding

Total funding

$557.5M

Last raise

$225M

Series F, 5 years ago

Funding history

Jun 2021

Series F Illumio · $225M

Feb 2019

Series E Illumio · $65M

Jun 2017

Series D Illumio · $125M

Apr 2015

Series C Illumio · $100M

Sep 2013

Series B Illumio · $34.5M

Audience

Monthly website visitors

133.4K

Month over month-15.3%

Quarter over quarter+34.1%

Top sourceDirect (44%)

Ad budget per month$176.3K

Average search rank46.5

Traffic source mix

Direct

44%

Search

39.3%

News

How Illumio Stops Ransomware Lateral Movement in Hybrid Multi-Cloud Environments

Nov 14, 2025 • Illumio

How to Meet HKMA OR-2 Compliance with Illumio

Oct 28, 2025 • Illumio

Cybersecurity Startup Illumio Raises $225M At $2.75B Valuation

Oct 23, 2025 • PYMNTS.com

Links

www.illumio.com

Crunchbase

X (Twitter)

Glassdoor

Illumio insights

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

Founded

2013

Headquarters

Sunnyvale, California

Employees

501-1000

16.8% growth last 12mo

Marketing team

63

8% of company

50 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

Late-stage · Growing 16.8% last 12 months · More mature · Last funding 3+ years ago

Trend

2021-07-26 -> 2025-12-15

Headcount (12 months)

+16.8%

Last funding round

58 months ago

Negative news (120 days)

0

Risk score1/7

Website traffic

Shows traffic size, change, and traffic sources.

Monthly website visitors

133.4K

Month over month-15.3%

Quarter over quarter+34.1%

Top sourceDirect (44%)

Traffic source mix

Direct

44%

Search

39.3%

Referral

Competitors and search

Shows competitors and key search metrics in one view.

Main result

74 competitor sites

Search traffic: 6.8K organic clicks / 5.2K paid clicks

Organic competitors

0

Paid competitors

5

Keyword change

+240

Ad budget per month

$176.3K

Average search rank

46.5

Paid competitors5

G2 quick view

Shows G2 rating and review trend.

Main result

8.9 / 5

12 reviews saved

Reviews month over month

—

Reviews quarter over quarter

0%

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

13 open jobs

Open jobs trend: —

Trend

Gartner

Shows Gartner reviews and listed products.

Main result

129 Gartner reviews

Illumio, the Zero Trust Segmentation company, stops breaches and ransomware from spreading across the hybrid attack surface. The Illumio ZTS Platform visualizes all traffic flows between workloads, devices and the internet, automatically sets granular segmentation policies to control communications, and isolates high-value assets and compromised systems proactively or in response to active attacks. Illumio protects organizations of all sizes, from Fortune 100 to small business, by stopping breaches and ransomware in minutes, saving millions of dollars in application downtime, and accelerating cloud and digital transformation projects.

Listed products

1

Reviews

129

Employee range

—

Marketing team size

Shows saved marketing team size.

63

8% of the company • 50 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: 63.

Glassdoor ratings

Shows saved Glassdoor ratings.

Glassdoor ratings

Overall rating

4.1 / 5

Work-life balance

4.1 / 5

Culture

4.1 / 5

Diversity & inclusion

4.2 / 5

Recommend to a friend

79%

Positive business outlook

76%

Funding

Shows saved funding data.

Total funding

$557.5M

Last raise

Series F

5 years ago

Funding details

Amount raised

$557.5M

Last round

Series F

Last fundraise

5 years ago

News

Shows saved company news.

How Illumio Stops Ransomware Lateral Movement in Hybrid Multi-Cloud Environments

Nov 14, 2025 • Illumio

How to Meet HKMA OR-2 Compliance with Illumio

Oct 28, 2025 • Illumio

Cybersecurity Startup Illumio Raises $225M At $2.75B Valuation

Oct 23, 2025 • PYMNTS.com

Loading insights...

Headcount +16.8% year over year

Jan 2013

Series A Illumio · $8M

Referral

10.5%

Social

4.1%

Paid referral

2%

LinkedIn followers

Follower count and growth

Total followers

140K

12-mo growth

+17.7%

Monthly growth

+0.7%

Salaries

Help build salary transparency at Illumio

Share your compensation anonymously to see full data.

Contribute

Open positions15 open marketing positions

Digital Marketing Manager - EMEA & APAC

Illumio

UK (Remote)

£75K/yr - £90K/yrIn-houseFull-timeMid level4+ years exp.

10 days ago

Sr. Growth Marketing Manager - Upsell & Expansion

Illumio

Sunnyvale, CA (On-site)

$175K/yr - $210K/yrIn-houseFull-timeSenior level

3 weeks ago

Product Marketing Specialist - Product Led Growth (PLG)

Illumio

Sunnyvale, CA (Hybrid)

$109K/yr - $125K/yrIn-houseFull-timeMid level2+ years exp.

7 weeks ago

Brand Design Specialist

Illumio

Sunnyvale, CA (Hybrid)

$100K/yr - $115K/yrIn-houseFull-timeIntern/new grad1+ years exp.

1 month ago

Motion Designer (Brand & Campaigns)

Illumio

Sunnyvale, CA (Hybrid)

$125K/yr - $144K/yrIn-houseFull-timeMid level3+ years exp.

1 month ago

Product Marketing Manager - Alliances

Illumio

Sunnyvale, CA (Hybrid)

$139K/yr - $160K/yrIn-houseFull-timeSenior level3+ years exp.

2 months ago

View all 15 jobs

Illumio insights

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

Founded

2013

Headquarters

Sunnyvale, California

Employees

501-1000

16.8% growth last 12mo

Marketing team

63

8% of company

50 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

Late-stage · Growing 16.8% last 12 months · More mature · Last funding 3+ years ago

Trend

2021-07-26 -> 2025-12-15

Headcount (12 months)

+16.8%

Last funding round

58 months ago

Negative news (120 days)

0

Risk score1/7

Website traffic

Shows traffic size, change, and traffic sources.

Monthly website visitors

133.4K

Month over month-15.3%

Quarter over quarter+34.1%

Top sourceDirect (44%)

Traffic source mix

Direct

44%

Search

39.3%

Referral

Competitors and search

Shows competitors and key search metrics in one view.

Main result

74 competitor sites

Search traffic: 6.8K organic clicks / 5.2K paid clicks

Organic competitors

0

Paid competitors

5

Keyword change

+240

Ad budget per month

$176.3K

Average search rank

46.5

Paid competitors5

G2 quick view

Shows G2 rating and review trend.

Main result

8.9 / 5

12 reviews saved

Reviews month over month

—

Reviews quarter over quarter

0%

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

13 open jobs

Open jobs trend: —

Trend

Gartner

Shows Gartner reviews and listed products.

Main result

129 Gartner reviews

Illumio, the Zero Trust Segmentation company, stops breaches and ransomware from spreading across the hybrid attack surface. The Illumio ZTS Platform visualizes all traffic flows between workloads, devices and the internet, automatically sets granular segmentation policies to control communications, and isolates high-value assets and compromised systems proactively or in response to active attacks. Illumio protects organizations of all sizes, from Fortune 100 to small business, by stopping breaches and ransomware in minutes, saving millions of dollars in application downtime, and accelerating cloud and digital transformation projects.

Listed products

1

Reviews

129

Employee range

—

Marketing team size

Shows saved marketing team size.

63

8% of the company • 50 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: 63.

Glassdoor ratings

Shows saved Glassdoor ratings.

Glassdoor ratings

Overall rating

4.1 / 5

Work-life balance

4.1 / 5

Culture

4.1 / 5

Diversity & inclusion

4.2 / 5

Recommend to a friend

79%

Positive business outlook

76%

Funding

Shows saved funding data.

Total funding

$557.5M

Last raise

Series F

5 years ago

Funding details

Amount raised

$557.5M

Last round

Series F

Last fundraise

5 years ago

News

Shows saved company news.

How Illumio Stops Ransomware Lateral Movement in Hybrid Multi-Cloud Environments

Nov 14, 2025 • Illumio

How to Meet HKMA OR-2 Compliance with Illumio

Oct 28, 2025 • Illumio

Cybersecurity Startup Illumio Raises $225M At $2.75B Valuation

Oct 23, 2025 • PYMNTS.com

10.5%

Social

4.1%

Paid referral

2%

Total followers

140K

12-mo growth

+17.7%

Monthly growth

+0.7%

2023-07-01 -> 2026-02-01

Open jobs growth

—

Biggest role change

—

Latest open role

Staff Technical Account Manager